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PC is a linear carbonate polyester, in which the carbonate groups are arranged alternately with other groups. These groups can be aromatic, aliphatic or both. Bisphenol a PC is the most important industrial product.
PC is an almost colorless amorphous polymer in glassy state with good optical properties. PC high molecular weight resin has high toughness. The notch impact strength of cantilever beam is 600 ~ 900j / m. The thermal deformation temperature of unfilled brand is about 130 ° C. After glass fiber reinforcement, this value can be increased by 10 ° C. The bending modulus of PC can reach more than 2400mpa, and the resin can be processed into large rigid products. Below 100 ° C, the creep rate under load is very low. PC has poor hydrolysis resistance and cannot be used for products repeatedly subjected to high-pressure steam.
The main performance defects of PC are insufficient hydrolysis stability, sensitivity to notch, poor resistance to organic chemicals and scratch resistance. It will turn yellow after long-term exposure to ultraviolet light. Like other resins, PC is easily eroded by some organic solvents.
PC material has flame retardancy and oxidation resistance.
| Performance items | Test conditions | test method | Control index | Inspection results | Data unit | |
| physical property | MFR | ASTM D1238-2013 | 11.0±1.5 | 10 | g/10min | |
| Mechanical properties | impact strength | ASTM D256-2010 | ≥70 | 85.3 | kg.cm/cm | |
| Other properties | Vicat softening temperature | ASTM D1525-2009 | ≥148 | 152.3 | 'C | |
| Haze | ASTM D1003-2013 | ≤0.8 | 0.36 | % | ||
| Light transmittance | ASTM D1003-2013 | ≥88 | 90.1 | % | ||
| Visible impurity | Q/WY J JY074-2018 | ≤5 | 0.2 | - |





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