日本三菱S2000UR和S3000UR都是抗紫外線PC塑料,主要區(qū)別在于熔指和沖擊性能不同。S2000UR是中粘度PC,S3000UR是低粘度PC。S2000UR熔指比S3000UR低一點,流動性差一些,沖擊強(qiáng)度和熱性能則要比S3000UR高出一頭,S3000UR的機(jī)械性能則稍勝一星半點。
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