以长庆、青海含蜡原油为研究对象，考察乙烯-醋酸乙烯酯共聚物(简称EVA)降凝剂对含蜡原油的降凝效果。

Using Changqing and Qinghai waxy crude oils as research objects, the depressive effects of ethylene-vinyl acetate (EVA) copolymer pour point depressant on the waxy crude oils were studied.

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胺官能聚 乙烯醇中的一种是通过醋酸乙烯基酯与N-乙烯基甲酰胺或醋酸乙烯基酯 与烯丙胺的共聚物的水解而生成的。

One form of an amine functional polyvinyl alcohol is produced by the hydrolysis of a copolymer of vinyl acetate and Nvinylformamide or vinyl acetate and allyl amine.

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研究了三聚氰胺磷酸盐(M P)和季戊四醇(PER)作为膨胀型阻燃剂(ifr)在乙烯-醋酸乙烯酯共聚物(EVA)中的阻燃作用。

Flame retardation of EVA copolymer using melamine phosphate (MP) and pentaerythritol (PER) as intumescent flame retardants (IFR) was investigated.

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