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冷却速率和压力对聚合物PVT特性的影响研究 被引量:2

Effect of Cooling Rate and Pressure on PVT Relationships of Polymers
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摘要 根据聚合物由原料经过加工成为制品的过程中,无论加工方式怎么变化,高分子材料的压力-温度-比容积参数三者之间始终遵循PVT特性规律,研制了具有高冷却速率的直接加压测试聚合物PVT技术及装置,对压力、冷却速率等参数对于高分子材料PVT特性的影响进行实验测试。研究表明,温度转变点随冷却速率的增大而降低,随压力的提高而变大。 No matter how the process of polymer materials changed, the'pressure-volume- temperature (PVT) of polymer materials always follows a special law. This paper innovatively developed a device for measuring pressure, cooling rate and other parameters through directly pressing test using a high cooling rate. The temperature transition point was reduced when the cooling rate increased. And it was increased when the pressure elevated.
出处 《中国塑料》 CAS CSCD 北大核心 2013年第11期71-74,共4页 China Plastics
关键词 冷却速率 压力 测试技术 温度转变点 cooling rate pressure test technology temperature transition point
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