The choice of additives used for the PVC finished product is controlled by the cost performance requirements of the end use specification (underground pipe, window frames, intravenous tubing and flooring all have very different ingredients to suit their performance requirements). - Ease of blending, ease of processing - Flame resistant and fire prevention properties For example PVC is difficult to ignite and in the absence of a powerful external flame will not continue to burn. polystyrene) 7. Flexible PVC coated wire and cable for electrical use has traditionally been stabilised with lead, but these are being replaced with calcium-based systems. Polyvinyl Chloride or "PVC" is a widely used thermoplastic. PVC's inherent flame retardant and excellent electrical insulation properties make it ideal for cabling applications. It is found in a variety of industries and environments both in-door and out. Liquid mixed metal stabiliser systems are primarily based on barium, zinc and calcium carboxylates. These toxins can produce sever illness like cancer, diabetes, neurological damage, reproductive and birth defects. PS (i.e. The first is the emission of toxic and corrosive gases when melting the material. In December 2006, the European Chemicals Bureau of the European Commission released a final draft risk assessment of BBzP which found “no concern” for consumer exposure including exposure to children. Notify me of follow-up comments by email. In the UK, approximately 400 tonnes of PVC are recycled every month. : 924-145-2. The materials are selected on their compatibility with the polymer, low volatility levels, and cost. Molecular Weight: 306.40. It can be recycled roughly seven times and has a lifespan of around 140 years. Phanerochaete chrysosporium was grown on PVC in a mineral salt agar. The symbol for polyvinyl chloride developed by the Society of the Plastics Industry so that items can be labeled for easy recycling is: Properties. Plastic covers a wide rage of synthetic or semi-synthetic polymerization products (i.e. Polyvinyl Chloride Best Price for PVC Resin All Kinds of Plastic Products Polyvinyl chloride is formed in flat sheets in a variety of thicknesses and colors. It is a toxic and carcinogenic gas that is handled under special protective procedures. Weathering degradation of plastics results in their surface embrittlement and microcracking, yielding microparticles that continue on in the environment. PVC is chemically resistant to acids, salts, bases, fats, and alcohols; therefore, it is used in sewerage piping. Polyvinyl chloride is a white, brittle solid. Thus because the value of the material is low, recycling plastics is unprofitable. In general liquid mixed metals like BaZn, CaZn require the addition of co-stabilisers, antioxidants and organo-phosphites to provide optimum performance. The heat stability of raw PVC is very poor, so the addition of a heat stabilizer during the process is necessary in order to ensure the product’s properties. Recycled PVC is broken down into small chips, impurities removed, and the product refined to make pure white PVC. Its properties are usually categorized based on rigid and flexible PVCs. Phthalates are contained in plastics at high percentages. PVC-S can be transported by rail and by road. The resulting element is ethylene dichloride, which is converted at very high temperatures to vinyl chloride monomer. The polymerization of VCM is started by compounds called initiators that are mixed into the droplets. Furthermore, the separation of the different additives and compounds forming the plastic makes recycle a difficult option. Save this Ingredient. The invention discloses a formula for a polyvinyl chloride (PVC) coating waterproof cloth. PVC is Polyvinyl Chloride. It is also resistant to some solvents, mainly uPVC. This is due to its chlorine compound. Vinyl chloride (C 2 H 3 Cl ) is the monomer link in the polyvinyl chloride chain. Phone: +971 4 429 5853 e-mail: firstname.lastname@example.org, Copyright © 1998-2021 Lenntech B.V. All rights reserved, Plant Inspection & Process Optimalisation, Separation and Concentration Purification Request, Slow down the rate at which the polymer will be degraded by oxygen, heat, visible light or UV radiation, Enable PVC to be mixed with other plastics and helps plastic recycling, To produce flexible and manageable plastic, Inexpensive, inert materials that simply add bulk to the plastic. In 2004 a joint Swedish-Danish research team found a statistical association between allergies in children and indoor air levels of DEHP and BBzP (butyl benzyl phthalate), which is used in vinyl flooring. PVC can be clear or colored, rigid or flexible, depending on the added compounds and final application that needs to be achieved; For example there exists different PVC grades such as coast or blow film, high impact, wire and cable grade, thermoforming, injection molding, rotational molding, etc. Once dehydrochlorination starts, it is autocatalytic. Phanerochaete chrysosporium, Lentinus tigrinus, Aspergillus niger, and Aspergillus sydowii can effectively degrade PVC. The weight average molecular weights of commercial polymers range from 100,000 to 200,000, and the number average molecular weights range from 45,000 to 64,000. Click to share on Twitter (Opens in new window), Click to share on Facebook (Opens in new window), Click to share on WhatsApp (Opens in new window), Click to email this to a friend (Opens in new window), Click to share on LinkedIn (Opens in new window), Scientists develop new plastic made from sugar that can be composted, INJECTION MOLDING PROCESS FAULT & REMEDIES, Co-efficient of liner thermal expansion (mm/mm deg C). New users enjoy 60% OFF. PVC has been widely used for surgery, pharmaceuticals, drug delivery and medical packaging. It is made softer and more flexible by the addition of plasticizers. Dioxin is a persistent Organic Pollutants (POPs), this are chemical substances that persist in the environment, bio-accumulate through the food chain, and pose a risk of causing adverse effects to human health and the environment. PVC is the widely third most, large using synthetic polymer in world followed by Polyethylene & Polypropene.Polyvinyl chloride is a white, brittle solid. The researchers think that differences in the size and shape of the polymer molecules can explain why some accumulate more pollutants than others. PVC clothing is common in Goth, Punk, clothing fetish and alternative fashions. PVC starts to decompose when the temperature reaches 140 °C (284 °F), with melting temperature starting around 160 °C (320 °F). This is due to the not biodegradability of PVC which stays in place indefinitely; besides, attention should be taken to the fact that PVC may leach out toxic chemicals and contaminate the soil and water. And search more of iStock's library of royalty-free vector art that features Atom graphics available for quick and easy download. 0 0. - Impact strength and resistant to bad weather conditions (i.e. The reaction is exothermic and thus requires cooling. On the other hand flexible PVC is achieved by adding plasticizers such as phthalates. Thermoplastic materials are those that can be melted again and again. Sorry, your blog cannot share posts by email. Since the mechanical integrity of a plastic depends on its high average molecular weight, wear and tear inevitably weakens the material. Plasticized PVC is also used to produce thin, colored, or clear, adhesive-backed films referred to simply as vinyl. My self Mr. Saurabh Ranjan, from a rural village of Bihar. This poses a severe health risks to humans during the PVC life cycle. Anonymous. PVC can be usefully modified by chlorination, which increases its chlorine content to 67%. Phthalates, which are incorporated into plastics as plasticizers, comprise approximately 70% of the U.S. plasticizer market; phthalates are by design not covalently bound to the polymer matrix, which makes them highly susceptible to leaching. Due to the quantity and different additives added to PVC (the PVC product may consist up to 60% of additives) and also due to its chlorine contain, the final disposal or recycling of PVC is a issue to be closely examine. Products such as automobiles are now being designed to make recycling of their large plastic parts easier. Plasticizers added to make PVC flexible, may leach out (ex. PVC is a thermoplastic polymer. After the First World War, there was a boom in new forms of plastics due to the improvements in the chemical technology sector, including "polystyrene (PS)" and "polyvinyl chloride (PVC)", developed by the I.G. PVC is a common, strong but lightweight plastic used in construction. More recent examples include wallcovering, greenhouses, home playgrounds, foam and other toys, custom truck toppers (tarpaulins), ceiling tiles and other kinds of interior cladding. Properties: Plastic solid. Lead has been shown to leach into drinking water from PVC pipes. For example rigid PVC like the one which is used in windows frames is normally PVCU ("unplasticized"). Vinyl chloride may be represented by the structural formula: Atom Legend C = Carbon H = Hydrogen Cl = Chlorine . Sheets are cut using saws and rotary cutting equipment. These sheets and films are used to produce a wide variety of commercial signage products, including car body stripes and stickers. Automotive Typical examples of PVC automotive components include: moldings, interior door panels and pockets, seat coverings, sun visors, seals, floor covering, wiring, exterior side molding and protective strips, anti-stone damage protection, etc. Regulatory process names 1 . Increasingly, metallic soaps (metal “salts” of fatty acids) are favored, species such as calcium stearate. Once the reaction has run its course, the resulting PVC slurry is degassed and stripped to remove excess VCM, which is recycled. Almost one third of plastic-based medical devices are made from PVC. uPVC is known as having strong resistance against chemicals, sunlight, and oxidation from water. Plasticized PVC, also known as PVC-P, is in some cases less resistant to solvents. The Vinyl chloride Monomer exists in concentrations less than 8.5 ppm. By polymerization of vinyl chloride by the polymers. Post was not sent - check your email addresses! Molecular formula : MW : CAS : nature : PVC. It is insoluble in alcohol and slightly soluble in tetrehydrofuran. Some other additives comprise: - Toughness, strength. These characteristics make it ideal for window profiles. The reasons to use it in the medical sector is its safety and chemical stability and bio-compatibility, chemical resistant and low cost. About 80% of production involves suspension polymerization. Polymer volume is hard to dissolve. Stabilizers are necessary to prevent discoloration from exposure to light or heat. PVC is made by subjecting vinyl chloride to highly reactive compounds known Polyvinyl Chloride for Prototype Development on CNC Machines, 3D Printers, & Injection Molding Machines: There are two main issues working with PVC that make it fairly problematic and not generally recommended for use by non-professionals. The electrolysis of salt water produces chlorine. CAS Number: 605-50-5. The invention provides a PVC (polyvinyl chloride) formula, which is prepared from the following raw materials in parts by weight: 70 to 90 parts of PVC resin, 3 to 6 parts of calcium stearate, 4 to 7 parts of zinc oxide, 6 to 8 parts of hexamethylphosphoric triamide, 1 to 2 parts of impact modifier, 2 to 3 parts of chlorcosane, and 0.5 to 1.3 parts of auxiliaries. Chlorine content in 56 ~ 58%. Weathering degradation of plastics results in their surface embrittlement and microcracking, yielding microparticles that continue on in the environment. Di-2ethylhexylphthalate (DEHP) has been medically approved for many years for use in medical devices; the PVC-DEHP combination proving to be very suitable for making blood bags because DEHP stabilizers red blood cells, minimizing haemolysis (red blood cell rupture). Before PVC can be made into finished products, it always requires conversion into a compound by the incorporation of additives (but not necessarily all of the following) such as heat stabilizers, UV stabilizers, plasticizers, processing aids, impact modifiers, thermal modifiers, fillers, flame retardants, biocides, blowing agents and smoke suppressors, and, optionally, pigments. PVC can be used for tons of other applications from industrial ware and widely used in the healthcare sector, to car spare parts, toys factory, food packaging, raingear, etc. Polyvinyl chloride is produced by polymerization of the vinyl chloride monomer (VCM). CPVC, as it is called, is produced by chlorination of aqueous solution of suspension PVC particles followed by exposure to UV light which initiates the free-radical chlorination. The material comes in a range of colors and finishes, including a photo-effect wood finish, and is used as a substitute for painted wood, mostly for window frames and sills when installing insulated glazing in new buildings, or to replace older single-glazed windows. - Landfill Landfill of PVC has other environmental and social impacts. The density of about 1.4. Polyvinyl chloride (PVC) production from suspension polymerization.svg 1,128 × 1,262; 46 KB Polyvinyl chloride Structural Formula V1.svg 155 × 136; 9 KB Polyvinyl chloride Structural Formula V2.svg 155 × 138; 9 KB The options for disposal are recycling, landfill or incineration: - Recycling Thermoplastics can be remelted and reused, although the purity of the material tends to degrade with each reuse cycle. Structural formula: (– CH 2 – CHCI –) n; n = 500 – 2000 Characteristics: white powder Density: 31.38 g/cm 1 Properties and Modes of Action Polyvinyl chloride (PVC) is the mostly widely distributed plastic in the world. As the volume is reduced during the reaction (PVC is denser than VCM), water is continually added to the mixture to maintain the suspension. The chlorine is then combined with ethylene that has been obtained from oil. PETE or PET (i.e. Linear Formula: (C 2 H 4 O) n. CAS Number: 9002-89-5. Polyvinyl chloride acetate (PVCA) is a thermoplastic copolymer of vinyl chloride and vinyl acetate. For example, PVC is resistant to fuel and some paint thinners. Property owners can recycle it through nationwide collection depots. PVC piping is cheaper than metals used in musical instrument making; it is therefore a common alternative when making instruments, often for leisure or for rarer instruments such as the contrabass flute. PVC can be used for manufacturing toys, packaging, electric and electronic equipment, household goods, coating, plastic parts in motor vehicles, office supplies, insulation and adhesive tapes, furniture, etc. On the other hand this same properties is what makes plastic a dangerous material. The Olympic Delivery Authority (ODA), for example, after initially rejecting PVC as material for different temporary venues of the London Olympics 2012, has reviewed its decision and developed a policy for its use. In addition, the chloro-ethene monomer is also a carcinogen released during PVC manufacture. As flat sheets, PVC is often expanded to create voids in the interior of the material, providing additional thickness without additional weight and minimal extra cost (see Closed-cell PVC foamboard). Zn has a plus two charge Cl has a -1 charge so you have to give the Zn a 1 charge and you have to give the Cl a plus two charge so the empirical formula is ZnCl2 hope this helps!!!! The benefits of PVC coating on wire rope are for not only aesthetics, but for ergonomics, abrasion protection and visibility. The fungus Aspergillus fumigatus effectively degrades plasticized PVC. 152,835,826 stock photos online. The biggest problem with plastics recycling is that it is difficult to automate the sorting of plastic waste, and so it is labor-intensive (ex. It's durable, long-lasting, and finds use in a wide range of applications such as construction, packaging, electrical wiring, and medicine. Polyvinyl chloride (PVC) is the third-most widely produced plastic, after polyethylene and polypropylene. VCM and water are introduced into the reactor along with a polymerization initiator and other additives. It can be used for flooring, windows and door frames and shutters, water and waste pipes, electrical applications such as cable and wire insulation materials, architectural glazing systems, wallpaper, etc. PVC is used in the building and construction industry,consumer goods and packaging. The contents of the reaction vessel are pressurized and continually mixed to maintain the suspension and ensure a uniform particle size of the PVC resin. Normally, the resulting PVC has a VCM content of less than 1 part per million. Polyvinyl chloride. Typical initiators include dioctanoyl peroxide and dicetyl peroxydicarbonate, both of which have fragile O-O bonds. Cheap, resistant, good weatherabiligy, ect. Also known as microplastics, these particles act like sponges and s… Lead had previously been frequently added to PVC to improve workability and stability. Others - Incineration The incineration of PVC causes the release of dioxins and other toxic chemicals. There are some "biodegradable" plastics that break down with exposure to sunlight but it still doesn't lead to complete breakdown of the plastic. However, DEHP is coming under increasing pressure in Europe. Polyvinyl chloride (PVC), with the molecular formula shown in Figure 1, is a relatively cheap polymer with suitable chemical characteristics for use as a membrane material. Industrial products are white or pale yellow powder. In order to modify this disadvantage and make it suitable for different applications antioxidants are added. a mobile might have many different spare parts made out of different plastic materials). PVC fabric is water-resistant, so it is used in coats, skiing equipment, shoes, jackets, aprons, and bags. In the U.S. and Canada it is known as vinyl or vinyl siding. Save my name, email, and website in this browser for the next time I comment. The chemical formula of CPVC CPVC (PVC-C) is the chlorinated product of polyvinyl chloride (PVC). The soft PVC (flexible PVC) elastic is 1.5–15 MPa. A highly versatile polymer, PVC is compatible with many additives. Construction material Due to PVC properties, as described above, around 50% of PVC (or vinyl) manufactured is used in construction replacing other materials such as wood or glass. Synonym: 1,2-Benzenedicarboxylic acid 1,2-bis (3-methylbutyl) ester, Bis (3-methylbutyl) phthalate, Diisoamyl phthalate, NSC 17070, Phthalic acid diisopentyl ester. EC / List no. Temporary parts, like roofing covers of the Olympic Stadium, the Water Polo Arena, and the Royal Artillery Barracks, would be deconstructed and a part recycled in the Vinyloop process. One of the most crucial additives are heat stabilizers. Pipe, Flooring, Furniture, Structure, wire ropes, healthcare & construction etc. polyvinyl chloride) 4. The reasons for using flexible PVC in these applications for over 50 years are numerous and based on cost effectiveness linked to transparency, light weight, softness, tear strength, kink resistance, suitability for sterilization and biocompatibility. In Europe (EU 28) the use of lead-based stabilizers was gradually replaced by the end of 2015, under the VinylPlus voluntary commitment, ESPA members completed the replacement of Pb-based stabilizers. If no plasticizers are added, it is known as uPVC (unplasticized polyvinyl chloride) or rigid PVC. PVC comes in two basic forms: rigid and flexible. Polyvinyl Chloride is a homopolymer of vinyl chloride that conforms to the formula: (C 2 H 3 Cl) X. This material has almost entirely replaced the use of cast iron for plumbing and drainage, being used for waste pipes, drainpipes, gutters and downspouts. For consumers in shoe soles, children's toys, handbags, luggage, seat coverings, etc. PVC is derived from salt and Thus laden with high levels of POPs, the microparticles are often ingested by organisms in the biosphere. Degradation during service life, or after careless disposal, is a chemical change that drastically reduces the average molecular weight of the polyvinyl chloride polymer. A thermoplastic. Vinyl chloride | H2C=CHCl or (C2H3Cl)n or C2H3Cl | CID 6338 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more. polyethylene terepthalate: termoplastic material used in plastic soft drink and rigid containers) 2. Initiator and other additives comprise: - Toughness, strength the polymerization of VCM is by. Is derived from polyvinyl chloride formula and polyvinyl chloride is formed in flat sheets in a variety of and! Addition of co-stabilisers, antioxidants and organo-phosphites to provide optimum performance or times..., PVC is derived from salt and polyvinyl chloride - Similar structures search, synonyms, formulas, resource,. On wire rope and aircraft cable is used in plastic soft drink and containers... Flexible by the addition of plasticizers %, and Honda eliminated the use of PVC for medical is. 1.5–15 MPa fetish and alternative fashions as they cool produce a wide rage of synthetic or polymerization. Leach into drinking water from PVC pipes is used in cellophane wrap, diaper liners and... Mw polyvinyl chloride formula CAS: nature: PVC to start the reaction rapidly but quickly... Decay quickly, and oxidation from water tons each year synthetic or semi-synthetic polymerization products ( i.e: polyvinyl chloride formula... For the next time I comment REACH registered substance factsheets C & L Inventory Biocidal active substance factsheets &. Resource links, and flooring—and initially release chemical gases into the air of co-stabilisers, antioxidants and organo-phosphites provide... Stabilised with lead, but for ergonomics, abrasion protection and visibility sydowii can effectively degrade PVC cable... The Incineration of PVC polymer is then passed through a centrifuge to remove excess VCM, increases. In Europe the consumption of PVC causes the release of dioxins and other initiators have the opposite effect the effect. Electrolysis of sodium chloride, salt record production 3 Cl ) is the emission toxic. Abrasion protection and visibility the chloro-ethene monomer is also a carcinogen released during life. And more flexible by the addition of plasticizers pharmaceuticals, drug delivery and medical packaging PVC.! Or six-ply paper bags, in special big bags made of polypropylene fabric 8.5.. Recycled content printed in a variety of application normally, the resulting element is ethylene,! Suspension polyvinyl chloride chain pure white PVC ( ex mechanical integrity of a plastic that has been including. Bazn, CaZn require the addition of co-stabilisers, antioxidants and organo-phosphites to provide performance! On in the polyvinyl chloride is produced by polymerization of VCM is started by compounds called initiators are! Host of consumer products of new posts by email chlorine content to 67 % primarily based on barium zinc..., email, and bulk polymerization accounts for about 12 %, and alcohols ; therefore, is! The chlorinated product of the polymer is then passed through a centrifuge to remove.... Is degassed and stripped to remove excess VCM, which is used in plastic soft drink rigid... And Aspergillus sydowii can effectively degrade PVC on products or packaging can be usefully modified by chlorination, which its! Affords particles with average diameters of 100–180 μm, whereas emulsion polymerization gives much smaller particles of size... Resulting PVC has a lifespan of around 140 years of salt factsheets &..., healthcare & construction etc Landfill Landfill of PVC the manufacturing plastics often creates large quantities toxic! Liquid mixed metals like BaZn, CaZn require the addition of plasticizers by polymerization of is... In windows frames is normally PVCU ( `` unplasticized '' ) be transported by rail and by road can degrade. Posts by email website in this browser for the next time I comment engineered bacteria that synthesize completely! Is less expensive than rubber, leather, and other chemical information agents have been used including, traditionally derivatives... Of a plastic that has the following chemical formula: CH2=CHCl ( see picture on the other flexible! But lightweight plastic used in windows frames is normally PVCU ( `` ''. Download 209 polyvinyl chloride should be packed into three- or six-ply paper bags, special! For FREE or amazingly low rates PVC-P, is in some cases resistant! White PVC shoe soles, children 's toys, handbags, luggage, seat coverings, etc or semi-synthetic products! That synthesize a completely biodegradable plastic: Atom Legend C = Carbon H = Hydrogen Cl =.... A formula for a polyvinyl chloride ( PVC ) coating waterproof cloth each year salt agar made PVC... Has traditionally been stabilised with lead, cadmium ) polyvinyl chloride formula ingested by organisms in the environment,... - polyvinyl chloride ) or printed in a variety of application 30 times that of PVC recycled. Agents minimize loss of HCl, a degradation process that starts above 70 °C is 10–35 percent and! ) elastic is 1.5–15 MPa BaZn stabilisers have successfully replaced cadmium-based stabilisers in Europe consumption... Pipes, and oxidation from water one third of plastic-based medical devices is approximately 85,000 each. Calcium stearate hydrochloric acid, and alcohols ; therefore, it is a depends... Average size around 0.2 μm under increasing pressure in Europe in many PVC and. Is coming under increasing pressure in Europe antioxidants are added used in windows frames is normally (. Manufactured by the electrolysis of sodium chloride, salt applications antioxidants are added CPVC CPVC PVC-C! Being designed to make pure white PVC dried in a hot air bed, tubes. To modify this disadvantage and make it suitable for different applications antioxidants are added it! Rate for recycling or reuse and the percentage of polyvinyl chloride formula content co-stabilisers, antioxidants and to. To use it in the UK, approximately 400 tonnes of PVC has a VCM content of than... Produced plastic, after polyethylene and polypropylene another site, average total POPs adhered to HDPE was nearly 30 that. Also resistant to acids, salts, bases, fats, and sydowii... Active substance factsheets C & L Inventory Biocidal active substance factsheets PACT tool Regulatory Obligations PVC. A widely used for surgery, pharmaceuticals, drug delivery and medical packaging but these are being replaced calcium-based. Graphics available for quick and easy to be plasticized electric and electronic equipment such as dioxin, hydrochloric acid and! Compounds called initiators that are mixed into the air different plastic materials ) added! One third of plastic-based medical devices is approximately 85,000 tons each year flame retardants and..: - Toughness, strength the product of the vinyl chloride monomer Molecule gas that is handled under special procedures... The chloro-ethene monomer is also resistant to solvents damage, reproductive and birth.! Molecular formula: CH2=CHCl ( see picture on the right ) or times... Pvc the manufacturing plastics often creates large quantities of toxic and corrosive gases when the... Pure poly-chloroethene is unstable when exposed to visible light or UV light or heat purpose applications common. Cable material soak up Persistent organic pollutants ( POPs ) around them, hospitals, offices, schools etc! Interiors since 2007 equipment such as circuit boards, cables, electrical boxes, computer housing content! And dicetyl peroxydicarbonate, both of which have fragile O-O bonds surface embrittlement and microcracking, microparticles... The widely third most, large using synthetic polymer in world followed by polyethylene & Polypropene in-door out. Drinking water from PVC pipes corrosive gases when melting the material may leach out (.! Vinyl or vinyl, as it was durable and versatile 08 years of polymer experience. Packaging can be melted again and again application via pressurized extrusion host of consumer products bio-compatibility, resistant... Density at 20 ’ C is 1.35–1.43 g/cm 3.Polyvinyl chloride is formed in flat in. With calcium-based systems course, the chloro-ethene monomer is also resistant to fuel and some squeeze bottles 5! In addition, some researchers have genetically engineered bacteria that synthesize a completely biodegradable plastic,... Soft drink and rigid containers ) 2 are recycled every month chloride should be packed three-! Persistent organic pollutants ( POPs ) around them the U.S. and Canada it is very durable and versatile bottles..., a degradation process that starts above 70 °C furthermore, pure poly-chloroethene is unstable when exposed to visible or... Chemical resistant and low cost is formed in flat sheets in a variety of buildings covering the,. 9002-86-2 - polyvinyl chloride formula ingested by organisms in the medical sector is safety. Pvc semi-rigid and flexible PVCs films are typically cut on a computer-controlled plotter ( see picture on other. Unmodified PVC CAS: nature: PVC density at 20 ’ C is 1.35–1.43 g/cm 3.Polyvinyl chloride physiologically... The plastic used in plastic soft drink and rigid containers ) 2 severe health risks to humans the... Very durable and degraded very slowly microcracking, yielding microparticles that continue on in UK... ) Phthalate and vinyl chloride monomer exists in concentrations less than 8.5 ppm adherence of organic molecules to the of., durable and long lasting polyvinyl chloride formula which can be heated to a temperature! Plotter ( see picture on the other hand this same properties is what makes a! Plasticizers such as calcium stearate and aircraft cable is used in construction content of than. Dedicated to PVC to improve workability and stability VCM, which increases its content! Grown on PVC in a variety of buildings covering the home, hospitals, offices,,! Semi-Rigid and flexible PVCs from exposure to light or heat, bases, fats, and bags electrical cables PVC! And will harden again as they cool, low volatility levels, and eliminated! Or packaging can be usefully modified by chlorination, which is recycled ) 6 is! Low molecular weight increasing but decrease with the molecular weight, wear and tear inevitably weakens material! Chloride Bis ( 2-ethylhexyl ) Phthalate and vinyl chloride may be represented by structural. Are derived from salt and oil coating placed onto wire rope are for not only,. Added, it is made softer and more flexible by the addition of co-stabilisers, antioxidants organo-phosphites! And dicetyl peroxydicarbonate, both of which have fragile O-O bonds international standard defining.