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熔融指数是衡量高聚物流动性好坏的常用指标,一般记为MI,它是在标准的熔融指数仪上测定的。所谓MI是指热塑性试料的熔体在一定温度,压力下在10分钟内通过标准毛细管的重量值,以(克/10分钟)表示。
Melt index is a commonly used measure of the fluidity of a polymer, commonly referred to as MI, as measured on a standard melt indexer. The MI is the weight of a thermoplastic sample passing through a standard capillary within 10 minutes at a temperature and pressure expressed in grams per 10 minutes.