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This paper also studied pyrogenation of composites which are made up of three polymer(polyvinylchloride,ethylene-vinyl acetate copolymer and nylon12) and the shell at different temperature through analysed pyrolysis mechanism.The study shows:the calcined shell has different effect on resin at different temperature, nylon 12 having amido and shell calcined for two hours at 600℃ can form the material which has resemblance in the structure of shell,so the pyrolysis speed of this composite is slower than pure nylonl2,but the effect is unideal.

通过分析聚合物的热降解机理,研究了三种聚合物(聚氯乙稀、乙烯—醋酸乙烯共聚物和尼龙12)与不同温度下贝壳组成的复合材料的热降解行为,结果发现:不同温度下煅烧的贝壳对树脂的影响不同,其中具有氨基的尼龙12与600℃煅烧2小时的贝壳可以形成类似贝壳结构的材料,所以这种复合材料比纯尼龙12的热降解速度慢,但效果不理想。

For the veneering with 0.3mm thick veneer over a graduated particleboard, the optimum processing conditions were a UF adhesive level at 78g/m~2 over the board, a PVAC adhesive level at 42g/m~2 over the veneers and 4.6 percent 36% HCL ...

用0.3mm厚的水曲柳薄木对渐变结构刨花板饰面时,其最佳工艺条件为:脲醛树脂胶在刨花板上的涂胶量为78g/m~2,聚醋酸乙烯酯乳液在薄木上的涂胶量为42g/m~2,38%盐酸用量为聚醋酸乙烯酯乳液重量的4.6%。

OBJECTIVE: To observe the therapeutic efficacy of the new type of membrane plasma separator Evacure-4A prepared by ethylene vinyl alcohol copolymer on severe hepatitis patients, in addition, to compare the results versus that of PS-06 membrane plasma separator.

目的:观察由乙烯乙烯醇共聚物制备的新型膜型血浆分离器Evacure-4A(EC-4A)治疗重型肝炎的临床疗效,并与由聚乙烯磺基制备的PS-06膜型血浆分离器进行对比分析。

Scrap material having both a thermoplastic polyurethane and a copolymer of ethylene and vinyl alcohol is recycled by blending the scrap material into a thermoplastic polyurethane composition and preparing a barrier membrane from the blended material.

通过将废料共混入热塑性聚氨酯组合物,并从该共混的材料制备屏蔽隔膜,从而使含有热塑性聚氨酯和乙烯乙烯醇共聚物的废料再生。

Superparamagnetic iron oxide nanoparticles were coated with either Polyvinyl alcohol or Vinyl alcohol/vinyl amine copolymer and further functionalized with the fluorochromes Cy3.5 or Texas Red.

将超顺磁性三氧化二铁纳米颗粒用聚乙烯醇或乙烯醇/乙烯胺共聚物包被后,再用荧光染料Cy3.5或德克萨斯红染料进一步功能化。

PVA coated and fluorescent dye (Cy3.5) functionalized vinyl alcohol/vinyl amine copolymer coated superparamagnetic iron oxide nanoparticles were evaluated for systemic distribution and elimination after intraarticular injection in sheep.

本文首先以PVA和标记有荧光染料Cy3.5的乙烯醇/乙烯胺共聚物修饰超顺磁性氧化铁纳米颗粒,再将其通过关节注射到绵羊体内,然后对其分布及排泄进行了评估。

The crystallization behavior and crystals structures of copoly (vinylidene fluoride-chlorotrifluoroethylene), which was synthesized with n: n=1: 4, were investigated by DSC, WAXD and FTIR, respectively.

用示差扫描量热法、广角X射线衍射和傅里叶红外光谱研究了偏氟乙烯/三氟氯乙烯单体摩尔比为1: 4的无规共聚物的结晶与晶体结构。

The absorption characteristics and the structure at (0,0,1) plane of the 1,3,5-triamino-2,4,6-trinitrobenzene crystals of alternative copoly(vinylidene fluoride-chlorotrifluoroethylene) with various degree of polymerization has been studied by molecular dynamics simulations using compass forcefield and NVT ensemble model.

采用COMPASS力场和NVT正则系综的动力学模拟方法,搭建了聚合度分别为10, 50和100的偏氟乙烯/三氟氯乙烯交替共聚物,对交替共聚物在1,3,5-三氨基-2,4,6-三硝基苯的(0,0,1)晶面上的吸附和结构进行了分子动力学模拟。

Polyvinylidene Fluoride is polymerized from Vinylidene Fluoride, it owns outstanding characteristics of high mechanical intensity, good radiation resistance.

聚偏氟乙烯是由偏氟乙烯聚合制得,简称PVDF。

Modification of fluorocarbon resin 246 (Copolymer of vinylidene fluoride-tetrafluoroethylene-hexafluoropropylene) with epoxy resin will improve the adhesion of fluorocarbon resin on metal surface.

摘 要:用环氧树脂改性偏二氟乙烯-四氟乙烯-六氟丙烯共聚物(氟树脂246),可以大大提高氟树脂在金属底材表面的附著力。

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The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。

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