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    Home > Catalyst and Auxiliary > Polymer (Find 314 items)

    Polymer

    Polyvinyl chloride

    (9002-86-2)
    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.
    1.Pipes
    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.
    4.Healthcare
    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.
    5.Flooring
    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.

    Poly(acrylic acid) Macromolecule

    (9003-01-4)
    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.

    Poly(1,2-Dihydro-2,2,4-Trimethylquinoline) (Tmq)

    (26780-96-1)
    Poly(1,2-dihydro-2,2,4-trimethylquinoline) is an industrial catalyst or plastics and rubber additives, and its application examples are as follows: preparing a material with sound insulation function, the sound insulation material includes The components are 100 parts of nitrile rubber, zinc oxide, stearic acid, magnesium oxide, 2,2,4-trimethyl-1,2-dihydroquinoline polymer, graphite powder, carboxyl silicone oil, accelerator, vulcanization Agent, wherein the material includes components in parts by weight: 100 parts of nitrile rubber, 4-7 parts of zinc oxide Chemicalbook, 0.5-1.5 parts of stearic acid, 8-12 parts of magnesium oxide, 2,2,4-tri 1.5-3.5 parts of methyl-1,2-dihydroquinoline polymer, 7-12 parts of graphite powder, 3-6 parts of carboxy silicone oil, 0.5-1.5 parts of accelerator, 2-6 parts of vulcanizing agent. The unit volume of the material is lighter than other sound insulation materials, which can reduce the weight of use, reduce the overall quality of the applied components, have good sound insulation and attraction performance, and have long-term stable and reliable sound insulation attraction performance.

    Hydrolyzed Polymaleic Anhydride

    (26099-09-2)
    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.

    C9 Hydrocarbon Resin

    (64742-16-1)
    Mainly used as a binder in the rubber industry, but also for coatings, printing inks, etc.

    Polyparpylene Fiber

    (9003-07-0)
    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.

    Phenol-Formaldehyde Resin

    (9003-35-4)
    Phenol formaldehyde resins (PF) are synthetic polymers obtained by the reaction of phenol or substituted phenol with formaldehyde. Used as the basis for Bakelite, PFs were the first commercial synthetic resins (plastics). They have been widely used for the production of molded products including billiard balls, laboratory countertops, and as coatings and adhesives. They were at one time the primary material used for the production of circuit boards but have been largely replaced with epoxy resins and fiberglass cloth, as with fire-resistant FR-4 circuit board materials.There are two main production methods. One reacts phenol and formaldehyde directly to produce a thermosetting network polymer, while the other restricts the formaldehyde to produce a prepolymer known as novolac which can be moulded and then cured with the addition of more formaldehyde and heat. There are many variations in both production and input materials that are used to produce a wide variety of resins for special purposes.

    Ethylene-Vinyl Acetate Copolymer

    (24937-78-8)
    Flexible tubing, color concentrates, gaskets and molded parts for autos, plastic lenses and pumps.

    Polycarbonate

    (25037-45-0)
    Used as electronic and electrical parts, mechanical textile industry parts, building structural parts, aviation transparent materials and parts, foam structural materials, etc.
    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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