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Polyvinyl chloride

Poly(vinyl chloride), softened with a plasticizer such as esters, is used for making vinyl leather (used for handbags, briefcases, and inexpensive shoes), plastic raincoats, shower curtains, garden hoses, floor covering, and automobile upholstery.
PVC's relatively low cost, biological and chemical resistance and workability have resulted in it being used for a wide variety of applications. It is used for sewerage pipes and other pipe applications where cost or vulnerability to corrosion limit the use of metal. With the addition of impact modifiers and stabilizers, it has become a popular material for window and door frames. By adding plasticizers, it can become flexible enough to be used in cabling applications as a wire insulator. It has been used in many other applications.
Roughly half of the world's polyvinyl chloride resin manufactured annually is used for producing pipes for municipal and industrial applications . In the water distribution market it accounts for 66 % of the market in the US, and in sanitary sewer pipe applications, it accounts for 75 % . Its light weight, low cost, and low maintenance make it attractive. However, it must be carefully installed and bedded to ensure longitudinal cracking and overbelling does not occur. Additionally, PVC pipes can be fused together using various solvent cements, or heat-fused (butt-fusion process, similar to joining HDPE pipe), creating permanent joints that are virtually impervious to leakage.
2.Electric cables
PVC is commonly used as the insulation on electrical cables; PVC used for this purpose needs to be plasticized.
Unplasticized polyvinyl chloride (uPVC) for construction
uPVC, also known as rigid PVC, is extensively used in the building industry as a low-maintenance material, particularly in Ireland, the United Kingdom, and in the United States. In the USA it is known as vinyl, or vinyl siding . 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 double glazing in new buildings, or to replace older single-glazed windows. Other uses include fascia, and siding or weatherboarding. This material has almost entirely replaced the use of cast iron for plumbing and drainage, being used for waste pipes, drainpipes, gutters and downspouts. uPVC does not contain phthalates, since those are only added to flexible PVC, nor does it contain BPA. uPVC is known as having strong resistance against chemicals, sunlight, and oxidation from water.
3.Clothing and furniture
PVC has become widely used in clothing, to either create a leather-like material or at times simply for the effect of PVC. PVC clothing is common in Goth, Punk, clothing fetish and alternative fashions. PVC is cheaper than rubber, leather, and latex which it is therefore used to simulate.
The two main application areas for medically approved PVC compounds are flexible containers and tubing: containers used for blood and blood components for urine or for ostomy products and tubing used for blood taking and blood giving sets, catheters, heartlung bypass sets, haemodialysis set etc. In Europe the consumption of PVC for medical devices is approximately 85.000 tons every year. Almost one third of plastic based medical devices are made from PVC.
Flexible PVC flooring is inexpensive and used in a variety of buildings covering the home, hospitals, offices, schools, etc. Complex and 3D designs are possible due to the prints that can be created which are then protected by a clear wear layer. A middle vinyl foam layer also gives a comfortable and safe feel. The smooth, tough surface of the upper wear layer prevents the build up of dirt which prevents microbes from breeding in areas that need to be kept sterile, such as hospitals and clinics.
6.Other applications
PVC has been used for a host of consumer products of relatively smaller volume compared to the industrial and commercial applications described above. Another of its earliest mass-market consumer applications was to make vinyl records. More recent examples include wallcovering, greenhouses, home playgrounds, foam and other toys, custom truck toppers (tarpaulins), ceiling tiles and other kinds of interior cladding.
  • Pharmaceutical, Food Grade, Industrial Grade, Reagent / 99%

    $1240/MT FOB

  • Pharmaceutical, Food Grade, Industrial Grade, Reagent / 99%

    $1500/MT FOB

  • Pharmaceutical, Food Grade, Industrial Grade, Reagent / 99%

    $1340/MT FOB

  • Pharmaceutical, Food Grade, Industrial Grade, Reagent / 99%

    $1340/MT FOB

Polyparpylene Fiber

Polypropylene (PP), also known as polypropene, is a thermoplastic polymer used in a wide variety of applications including packaging and labeling, textiles (e.g., ropes, thermal underwear and carpets), stationery, plastic parts and reusable containers of various types, laboratory equipment, loudspeakers, automotive components, and polymer banknotes. An addition polymer made from the monomer propylene, it is rugged and unusually resistant to many chemical solvents, bases and acids.Polypropylene has a relatively slippery "low energy surface" that means that many common glues will not form adequate joints. Joining of polypropylene is often done using welding processes.In 2013, the global market for polypropylene was about 55 million metric tons.

Acrylic Acid-2-Acrylamido-2-Methylpropane Sulfonic Acid Copolymer

AA/AMPS is mainly used for scale inhibition and dispersion of open industrial circulating cooling water system, oilfield sewage reinjection system, metallurgical system circulating water treatment, steel plant leaching cooling water to prevent Fe2O3 slime deposition, AA/AMPS can be combined with organic phosphine Combined use of acid salt and zinc salt, suitable for pH conditions of 7.0 to 9.5. AA/AMPS can also be used as textile printing and dyeing auxiliary. Used in organic chemical intermediates such as pesticides, medicines, dyes, etc.

Ethylene-Vinyl Acetate Copolymer

Adhesive bonding clothing fusible interlining, foam plastic and artificial leather, carpet backing, etc. Used as a variety of films, foamed products, hot melt adhesives and polymer modifiers; used in the production of films, injection molded products, hot melt adhesives, wires and cables, etc.; mainly used to prepare coatings and adhesives; mainly used in construction Finishing of interior and exterior walls of objects.

Poly (Tetrafluoroethylene)

Tubing & sheets for chemical laboratory & process work, lining reaction vessels, gaskets & pump packings, sometimes mixed with graphite, electrical insulator especially in high frequency applications, filtration fabrics, protective clothing.

Polyester Chip

Used in electrical parts including relay bases and lamp sockets, pump housings, gears, sprockets, chair arms, casters and furniture components. The first stage to produce Polyethylene Terephthalate (PET) is the reaction of ethylene glycol with terephthalic acid or dimethyl terephthalate. After the initial reaction, two or three polymerization steps are then performed, depending on the required molecular weight. The chemical structure of PET is composed of repeated units. Each unit has a physical length of about 1.09 nm and a molecular weight of ~200. PET monomer consists from an aromatic ring coupled with a short aliphatic chain that makes PET a stiff molecule as compared to other aliphatic polymers such as polyolefin or polyamide. The lack of segmental mobility in the polymer chains results in relatively high thermal stability. A textile grade polymer will have an average number of 100 repeat units per molecule so that the extended length of the typical polymer chain is about 100 nm with a molecular weight of ~20,000. Higher levels of polymerization produce higher strength fibers but the melt viscosity and stability of the melt to even tiny amounts of moisture causes hydrolytic degradation.
Photo-degradation of PET occurs after exposure to near-ultraviolet light resulting in either chain scission by Norrish I and II reactions. Cross-linking also takes place and polymer becomes brittle, discolored, and with uneven surface. PET when exposed to UV light degrades rather rapidly leading to deterioration in physical and mechanical properties and develops intense yellow color. It has been suggested that the photo-oxidation of PET involves the formation of hydroperoxide species through oxidation of the CH2 groups adjacent to the ester linkages and the hydroperoxide species involving the formation of photoproducts through several pathways. The ester moieties in the terephthalate moiety as well as CH2 groups are strongly involved in the photo-degradation of PET. The vinyl ester ends also act as cross-linkers and gelling agents. They polymerize and the polymers thermally degrade to give yellow or brown polyenes that discolor the final polymer. The formation of highly conjugated species is catalyzed by carboxyl groups. The formation of colored species is followed by increase of more carboxyl terminated species. Hence, the product having higher carboxyl value is subject to more discoloration. Furthermore, as the carboxyl content increases, the thermo-oxidative stability decreases. The carboxyl end groups act as catalysts for further degradation.

poly(acrylamide-co-diallyldimethylammonium chlor

Used as a cationic conditioner, used in shampoo, shower gel, shaving lotion, styling water, etc.; this product is used as a flocculant for sludge adjustment in urban sewage, industrial sewage and wastewater treatment systems, and is especially suitable for raw sewage or processing sewage , Food processing wastewater, fermentation wastewater and other organic sludge suspended solids and biodegradable sludge dewatering, and various types of industrial wastewater clarification treatment. This product can be used as a retention aid in the paper industry and dewatering of fiber-containing wastewater sludge. It is used to treat various mineral slurries in mining and mineral processing. It is also used for oil-water separation, crude oil dehydration and oily wastewater treatment in oil fields and refineries. It also has a wide range of uses in the daily chemical and textile industries.

Polyacrylic acid

Poly(acrylic acid) (PAA or Carbomer) is generic name for synthetic high molecular weight polymers of acrylic acid. They may be homopolymers of acrylic acid, crosslinked with an allyl ether pentaerythritol, allyl ether of sucrose or allyl ether of propylene. In a water solution at neutral pH, PAA is an anionic polymer, i.e. many of the side chains of PAA will lose their protons and acquire a negative charge. This makes PAAs polyelectrolytes, with the ability to absorb and retain water and swell to many times their original volume. Dry PAAs are found in the market as white and fluffy powders. Carbomer codes (910, 934, 940, 941 and 934P) are an indication of molecular weight and the specific components of the polymer. For many applications PAAs are used in form of alkali metal or ammonium salts, e.g. sodium polyacrylate.
Applications of PAA may include:· to study solute diffusion in Polyvinyl alcohol/PAA copolymer hydrogel· synthesizing poly(N-isopropylacrylamide)-block-PAA copolymer which responds to both temperature and pH stimuli· in preparing block copolymer of oligo (methyl methacrylate)/PAA for micellar delivery of hydrophobic drugs· as thickening agent for adhesives

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Hydrolyzed Polymaleic Anhydride

Hydrolyzed Polymaleic Anhydride has high stability and temperature resistance. It also has a significant solubility limit effect at a pH of 8.3. It can chelate with calcium, magnesium and other plasma ions in the water and has lattice distortion ability, which can improve the fluidity of sludge. Especially suitable for scale inhibition of high temperature water system such as boiler furnace water. It can be used as sediment inhibitors, scale inhibitors, etc. in oil field water pipelines, circulating cooling water systems and flash evaporation seawater desalination. It can also be used as a basic industrial detergent.
Polymers generally refer to high molecular compounds, which are referred to as macromolecules or macromolecules. They generally refer to compounds with a relative molecular mass of up to several thousand to several million. mixture. According to the source, it can be divided into two categories: natural polymers and synthetic polymers. According to the performance classification, it can be divided into three categories: plastic, rubber and fiber. ""Polymer"" on Echemi mainly supplies raw materials for Polymer.
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