Acrylonitrile-butadiene-styrene chemical, resistance

Polycarbonate is blended with a number of polymers including PET, PBT, acrylonitrile-butadiene-styrene terpolymer (ABS) rubber, and styrene-maleic anhydride (SMA) copolymer. The blends have lower costs compared to polycarbonate and, in addition, show some property improvement. PET and PBT impart better chemical resistance and processability, ABS imparts improved processability, and SMA imparts better retention of properties on aging at high temperature. Poly(phenylene oxide) blended with high-impact polystyrene (HIPS) (polybutadiene-gra/f-polystyrene) has improved toughness and processability. The impact strength of polyamides is improved by blending with an ethylene copolymer or ABS rubber. 

Copolymers show chemical resistance generally similar to that of polystyrene and terpolvmers similar to that of ABS (acrylonitrile-butadiene-styrene). Neither type is recommended for use in strongly alkaline environments. All impact versions have good natural color and products are available in a wide range of colors. Copolymer crystal grades have good clarity and gloss. 

Acrylonitrile-Butadiene-Styrene (ABS) Copolymers. This basic three-monomer system can be tailored to yield resins with a variety of properties. Acrylonitrile contributes heat resistance, high strength, and chemical resistance. Butadiene contributes impact strength, toughness, and retention of low-temperature properties. Styrene contributes gloss, processibility, and rigidity. ABS polymers are composed of discrete polybutadiene particles grafted with the styrene-acrylonitrile copolymer these are dispersed in the continuous matrix of the copolymer. 

Another polystyrene-based product is acrylonitrile-butadiene-styrene (ABS), a tough, hard, and chemically resistant plastic used for pipes and for... 

The most important commercial blends of BPA-PC are poly(acrylonitrile-butadiene-styrene) (PC/ABS) and polybutylene terephthalate (PC/PBT) or polyethylene terephthalate (PET). Commercial grades of PC/ABS include CYCOLOY (GE), Bayblend (Bayer), and PULSE (Dow). PC/ABS blends exhibit improved flow and processability and enhanced low-temperature impact strength in comparison to PC (Fig. 3). These blends are widely used in applications requiring enhanced impact resistance, such as interior automotive parts and computer and electronics applications such as computer housings and cell phones. Non-halogenated flame-retardant PC/ABS blends are widely available. Poly(acrylic-styrene-acrylonitrile) (PC/ ASA) blends (GELOY , GE Luran , BASF) provide improved weatherability for outdoor applications such as exterior automotive parts, but exhibit reduced impact performance at low temperatures in comparison to PC/ABS. PC/PBT or PET blends (XENOY , GE Makroblend , Bayer) provide enhanced chemical resistance and weatherability for applications such as lawn and garden equipment and automotive bumpers and fasdas. 

Acrylonitrile-butadiene -styrene ABS 90°C Low price and limited chemical resistance. Useful for gas, water and waste piping... 

Several other common industrial polymers are also used in biomedical applications [51]. Because of its low cost and easy processibility, polyethylene is frequently used in the production of catheters. High-density polyethylene is used to produce hip prostheses, where durability of the polymer is critical. Polypropylene, which has a low density and high chemical resistance, is frequently employed in syringe bodies, external prostheses, and other non-implanted medical applications. Polystyrene is used routinely in the production of tissue culture dishes, where dimensional stability and transparency are important. Styrene-butadiene copolymers or acrylonitrile-butadiene-styrene copolymers are used to produce opaque, molded items for perfusion, dialysis, syringe connections, and catheters. 

Another polystyrene-based product is acrylonitrile-butadiene-styrene (ABS), a tough, hard, and chemically resistant plastic used for pipes and for items such as radio housings, telephone cases, and golf club heads, for which shock resistance is an essential property. Originally, ABS was produced by copolymerization of the three monomers ... 

Another family of important styrenic materials that are synthesized by grafting techniques, is that of acrylonitrile-butadiene-styrene (ABS) polymers. These are also thermoplastic materials like HIPS, but they exhibit improved impact and chemical resistance as well as... 

HIPS) is produced commercially by the emulsion polymerization of styrene monomer containing dispersed particles of polybutadiene or styrene-butadiene (SBR) latex. The resulting product consists of a glassy polystyrene matrix in which small domains of polybutadiene are dispersed. The impact strength of HIPS depends on the size, concentration, and distribution of the polybutadiene particles. It is influenced by the stereochemistry of polybutadiene, with low vinyl contents and 36% d5-l,4-polybutadiene providing optimal properties. Copolymers of styrene and maleic anhydride exhibit improved heat distortion temperature, while its copolymer with acrylonitrile, SAN — typically 76% styrene, 24% acrylonitrile — shows enhanced strength and chemical resistance. The improvement in the properties of polystyrene in the form of acrylonitrile-butadiene-styrene terpolymer (ABS) is discussed in Section VILA. 

Acrylonitrile-butadiene-styrene (ABS) copolymers are produced by three monomers acrylonitrile, butadiene, and styrene. The desired physical and chemical properties of ABS polymers with a wide range of functional characteristics can be controlled by changing the ratio of these monomers. They are resistant... 

The replacement of styrenic material has been substantial and covers a wide spectrum of applications ranging from automotive to appliance and packaging. The driving forces for this change include cost reduction, performance improvement, unification to monomaterial, weatherability, and chemical resistance. In the automotive area, the major driving forces have been unification of materials, noise reduction, thermal stability, and weatherability. The use of acrylonitrile butadiene styrene (ABS) resin in the interior of the vehicle, particularly in the automotive door panels and trim, package trays, and center consoles, has primarily been... 

Acrylonitrile-butadiene-styrene (ABS) is one of the most important synthetic engineering resins because of its excellent properties of impact resistance, heat resistance, and chemical resistance along with being easy to fabricate, stable in finished size, and having good surface glossiness. ABS has wide application in machinery, vehicles, and electric products. 

ABS resins are generally prepared in the compositional ratio of 21 to 27% acrylonitrile, 12 to 25% butadiene, and 54 to 63% styrene on average, where styrene gives good processability and stiffness to the final ABS, butadiene improves the impact strength, and acrylonitrile improves the chemical resistance. 

Acrylonitrile butadiene styrene (ABS) for improved flow and modest improvements in chemical resistance... 

Styrene polymers ABS Typical grades UL 94 HB UL 94 VO Acrylonitrile-butadiene- styrene Copolymer Plug cases. Enclosures with good resistance to chemicals, lightweight, normal temperatures. ABS can also be flame retardant... 

Other plastics are used in plant structures, although less extensively. Among these are the acrylonitrile butadiene styrene (ABS) resins, the polyvinyl fluoride resins, the polycarbonate resins, and the polyurethanes. The epoxy resins have been used extensively in structural apph-cations (such as flooring) and adhesives. Specialized apphcations include use in chemically resistant coatings and in plasters for exposed aggregate wall finishes. 

---