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 Name: the PC (Innovative Plastics (USA)), 2034E. 



 Grade: PC (Innovative Plastics (USA)), 2034E. 



 Applications: transparent level, fatigue resistance, glasses, electronic outside, versatility, dimensional stability, UV resistance. 



 PC (Innovative Plastics (USA)), 2034E. Physical properties table. Please contact us directly. 





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 Polycarbonate (PC) 

 Section I Overview 

 The polycarbonate English name for polycarbonate. Referred to as PC (hereinafter referred to as PCs). It is a molecular chain containing a carbonate structure of the polymer and the general term of the matrix, while the quality of various materials. Brought ester base can be aliphatic, cycloaliphatic, aromatic and fat aromatic molecular structure of several types. And bisphenol A polycarbonate is the most important, the molecular weight of 3-10 million. No special instructions carbonate, commonly referred to as the bisphenol A polycarbonate and its modified varieties. 

 Only five major engineering plastics in transparent products, PC is a non-crystalline engineering materials, with particularly good impact strength, thermal stability, gloss, Ngong of bacterial properties, flame retardant properties and fouling resistance. PC-notched impact strength (Notched Izod impact strength) is very high, and the contraction rate is very low, generally 0.1% to 0.2%. PC has good mechanical properties, but less liquid, the injection molding process of this material is more difficult. In the selection and quality PC material, to the ultimate expectations of the Product. If the requirements of plastic parts have a higher impact resistance, then the use of low slip rate of the PC material: Instead, you can use the high turnover rate of the PC material, so you can optimize the injection molding process. 

 Section II features 

 Physical and chemical properties; pure PC resin is an amorphous, tasteless, odorless, transparent thermoplastic polymer molecular weight is generally 20,000 to 70,000 range, the relative density of 1.18 to 1.20, the glass transition temperature of 140 ~ 150 ° C, melting Cheng 220 ~ 230 ° C. Polycarbonate has a certain degree of chemical resistance, excellent oil resistance. 

 Since polycarbonate non-crystalline molecules piled up enough dense, aromatic diameter, easily lead to solvent cracking phenomenon. Resistance to alkaline poor. 

 (2) mechanical properties: good mechanical properties of polycarbonate, especially its impact strength and dimensional stability over a wide temperature range, difficult to maintain a higher mechanical strength, the drawback is the fatigue strength and wear resistance poor, trading the stress crack. 

 1) Impact strength: the impact strength of polycarbonate in the general-purpose engineering plastics and even so thermoplastics are very prominent, of value and 45% glass fiber reinforced polyester PET. The polycarbonate impact strength of the main factors that have a molecular weight of the notch radius, temperature, and additives. 

 2) creep resistance: polycarbonate creep resistance of engineering thermoplastics is very good, even better than nylon and POM. Dimensional changes due to water absorption and cold deformation are very small. This is it good dimensional stability an important symbol. 

 3) The fatigue resistance: polycarbonate resistant to cyclical stress shield ring reciprocating action of the poor. 

 4) abrasion wear: Compared with other engineering plastics, polycarbonate friction coefficient and poor wear resistance. 

 Thermal performance: in general-purpose engineering plastics, polycarbonate heat resistance is actually quite good, its decomposition temperature above 300 ° C, long-term operating temperature of up to 120 ° C; the same time, it has good cold resistance, embrittlement temperature arrived at -100 ° C; its long-term use temperature range is 60 to 120 ° C 

 Electrical properties: polycarbonate molecular polarity small, high glass transition temperature, low water absorption, so it has good electrical insulation properties, close to or equivalent has always been regarded as electrical insulation excellent performance of PET. Polycarbonate electrical insulation and temperature, the significant degree, the electric field frequency, and product thickness are closely related. 

 (5) anti-aging and flame resistance: polycarbonate anti-aging industry is quite good, hence the film placed in the air for a long time heating, its performance is little change. However, if the polycarbonate is a long period of sunlight, oxygen, water vapor effect, especially coupled with the high temperature itself contains certain impurities, it will cause degradation. Polycarbonate is a combustible, the flame is yellow, black smoke: oxygen index of 25%, leaving the supply of self-extinguishing. Are added to the district compound, two Ti oxide, phosphoric acid and red phosphorus modified to improve the flame retardancy. 

 Optical properties: polycarbonate non-crystalline substances, pure polycarbonate colorless, transparent, polyethylene has good light transmission, because of their poor surface hardness, wear resistance is not good, the surface is easily scared affect their transmission rate 

 Section III applications 

 For automotive lighting systems, instrument panel and trim systems for the automotive industry: the PC resin, as a former lampshade with strengthening the tendons car around the baffle, reflector frame, door frame, the sheath of the lever, spoiler 
 Glazing: The PC can be used as window glass PC laminates are widely used in banks, embassies, detention centers and public places, protective windows, for the cover of the aircraft cabin, lighting, industrial safety baffles and bullet-proof glass. 
 All kinds of signs: PC board can do all kinds of signs, such as fuel pump dial, automotive instrumentation standard plate-point sliding indicator 
 Electronics: PC is used as junction boxes, sockets, plugs and sleeves, gaskets, television conversion devices, the communication cable telephone line bracket connections, breaker box, telephone switchboard, switchboard components, relay housings, etc. ......