1、

Its import product is synthetic rubber , including nitril butadiene rubber and ethylene-propylene-non-conjugated diene rubber.

进口产品是合成橡胶, 主要包括丁腈橡胶及三元乙丙橡胶.

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2、

The copolymer of propylene with a small amount of butene was prepared by heterogeneous Ziegler ? Natta catalyst.

用负载型Ziegler- Nata 催化剂合成了丙烯同少量丁烯的共聚物,考察了单体进料比对催化活性的影响,发现此体系存在“共单体效应”.

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3、

Propylene glycol monoether acetate was synthesized using heteropoly acid as catalyst for the first time.

首次以杂多酸为催化剂采用酯化法合成丙二醇单乙醚乙酸酯.

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4、

In the past, our country produces propylene acyl amine to use chemical method commonly.

过去, 我国生产丙烯酰胺一般采用化学法.

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5、

The influence of reaction temperature and WHSV on conversion of propylene oxide appreciable.

反应温度和空速对环氧丙烷的转化率影响不大.

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7、

Direct determination for free propylene glycol content in propylene glycol ester was put forward.

提出丙二醇酯中游离丙二醇含量的直接测定方法.

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8、

Propylene Glycol ( PG ) is a type of preservative, and its chemical properties can absorb excess moisture.

丙烯 乙二醇 ) 是种防腐剂 ﹐ 而它本身的化学性质可以吸收多馀的水份.

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9、

The results showed that the compatibility between nylon 6 and ethylene-propylene diene monomer rubber ( EPDM) could be improved by adding grafted EPDM. Compared to pure nylon 6, the water-absorption rate of the alloys evidently decreased and their impact strength was higher with less rigidity loss.

结果表明:接枝三元乙丙橡胶明显改善尼龙6与三元乙丙橡胶之间的相容性,合金的吸水率明显降低,在保持较高强度的同时冲击性能远远优于尼龙6,接近或超过韧性尼龙;

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10、

Improved tensile strength and elongation of ethylene propylene diene monomer ( EPDM) compounds used for wire and cable.

提高电线电缆用三元乙丙橡胶(EPDM)材料的拉伸强度和伸长率。

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11、

Properties of intumescent flame retardant ethylene propylene diene monomer/ polypropylene thermoplastic vulcanizate

膨胀阻燃三元乙丙橡胶/聚丙烯热塑性硫化胶的性能

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12、

The rapid decomposition of titanium trichloride catalyst for propylene polymerization un-der atmospheric condition has brought serious difficulty in studying this kind of samples by scanning electron microscope.

由于三氯化钛聚丙烯催化剂在大气条件下会迅速分解,因此给扫描电镜观察此类样品带来了困难。

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13、

This paper introduces domestic and overseas status, environment-protection performence evaluation and use of propylene glycol ether.

简要介绍了丙二醇醚国内外现状以及丙二醇醚的环保性评价和用途.

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14、

The propylene glycol phenyl ether is used to increase the FT 25-7225 CED paint film thickness.

选择了丙二醇苯基醚以提高FT25 ─ 7225CED膜厚.

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15、

The recent progress using titanium silicalite to catalyze propylene into Propylene Oxide was introduced.

评述了环氧丙烷的各种合成方法,介绍了钛硅沸石催化丙烯环氧化反应研究的近期进展.

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16、

Propylene glycol , glycerin, polyalcohol can be used as starting substances of polyether demulsifiers.

聚醚类破乳剂的醇类起始剂有丙二醇 、 甘油或多元醇.

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17、

The graft copolymer of ethylene propylene diene monomer ( EPDM) and methyl methacrylate ( MMA) was prepared by swelling mechanochemical copolymerization in mixer.

采用直接溶胀法,在叶片混合器中以不同条件制备了三元乙丙橡胶-甲基丙烯酸甲酯接枝共聚物。

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18、

The fault had occured frequently since the propylene feed pump put into operation in 1988.

丙烯进料泵自1988年投运以后,故障较多.

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19、

Methanol-to-olefin and low-value olefin cracking integrated technologies are other effective approaches to producing ethylene and propylene.

甲醇制烯烃与低价值烯烃裂解集成工艺将是我国生产乙烯、丙烯的另一条有效途径.

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20、

In contact with a hot surface, naphtha petroleum fractions crack to produce ethylene and propylene.

石脑油馏份与一个热表面接角,就裂解而得到乙烯和丙烯.

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