查询词典 elastomer

The Polyether Polyurethane elastomer were prepared from hydroxyle-terminated polybutadiene, isophorone diisocyanate, 1,4-butylcne glycol, stannous octoate and SiO_2 in direction.

以端羟基聚丁二烯、异佛尔酮二异氰酸酯、1，4-丁二醇、白碳黑、辛酸亚锡等为原料，采用一步法制备了聚烯烃型聚氨酯弹性体材料。

UV light induced deformation and bending in certain type of photochromic liquid crystal elastomer s were studied.

本文研究了一类光敏液晶高弹体在紫外光照射下的变形和弯曲行为。

In order to achieve the properties required, we mainly studied the effects of factors on the properties of ambient-curing polyurethane elastomer. 1. Polyhydric alcohol.

为了明确各种因素对试样性能的影响，本文主要研究了聚醚多元醇、催化剂、填料诸因素对室温固化聚氨酯弹性体性能的影响。

By two steps, the material is obtained by the method that polyhydric alcohol, diisocyanate and a diatomic alcohol chain extender with 8-18 C-structural branch chains are mixed and poured into a polyurethane elastomer that achieves a damping effect through the combination and dissociation of a hydrogen bond between the branch chain and the main chain for consuming energy.

该类材料是通过两步法将多元醇、二异氰酸酯和带有8～18个C结构支链的二元醇扩链剂混合浇注成聚氨酯弹性体，通过支链与主链之间氢键的结合与解离消耗能量，起到阻尼效果。

The trifunctional polyhydric alcohol is more, the elasticity coefficient and surface hardness are higher. 2. Catalyst. The appropriate dosage of catalyst is determinated. To N-330, it is 0.15%; to N-220, it is 0.35%. 3. Filler. The more the solid filler is, the higher the properties of polyurethane elastomer are. The effect of liquid filler is more perplexing.

结果表明：三官能度聚醚含量增加，试样的弹性系数和表面硬度随之增大；固体填料含量增加，试样的弹性系数和表面硬度随之增大，液体填料的影响较为复杂；催化剂辛酸亚锡的合适用量为0.15%(N-330)或0.35%(N-220)。

This model utility has provided the quakeproof corrosion prevention sleeve which one kind of thermos uses, it makes by the elastomer material, divides the wrap bottom and the sleeve two parts.

本实用新型提供了一种热水壶用的防震防蚀套垫，它由弹性材料做成，分套底和套垫两部分。

The results showed that intermidiate 1, 2-propanediol-sebacate of low relative molecular mass was synthesized with toluene-p-sulfoinc acid as catalyst, benzene as watercarrying agent, and of mole ratio of sebacic acid to 1, 2-propanediol of 1:4. The glass-transition temperatures of PPSC were below 0 ℃ which confirmed that PPSC would be in a high-elastic state of ambient temperature and human body temperature. PPSC was a elastomer with moderate crosslinkage, low module and high elongation, and had rapid degradation ratio (degradation degree more than 50%) in phosphate (pH value 7.4) at 37℃.

结果表明，以对甲苯磺酸为催化剂、苯为带水剂，在酸醇比为1，4的条件下可合成较低相对分子质量的中间体癸二酸聚酯二元醇；PPSC弹性体的玻璃化转变温度在0℃以下，于室温及人体温度下处于高弹态；PPSC为适度交联的、低模量高伸长的弹性体，其在37℃、pH值为7.4的磷酸盆缓冲溶液中具有较快的降解性（降解度超过50%）。

A thermoplastic biodegradable elastomer was synthesized with propanetriol and sebacic acid by melting cocondensation.

用丙三醇和癸二酸通过熔融共缩聚反应合成了具有一定热塑性、可生物降解的弹性体，并对其结构进行了表征，同时讨论了该弹性体的力学性能、亲水性能和降解性能。

Intermidiate 1, 2-propanediol-sebacate was synthesized with 1, 2-propanediol and sebacic acid, then a novel degradable elastomer, poly, was synthesized by melt phase polycondensation of 1, 2-propanediol-sebacate and citric acid under under certain conditions.

通过癸二酸与1，2-丙二醇反应，生成中间体癸二酸聚酯二元醇，然后将中间体与柠檬酸在一定条件下熔融缩聚制得了一种可降解弹性体聚癸二酸丙二醇柠檬酸酯。

The nano-silica partrcles are organic-modified by E-MA-GMA elastomer through direct solvent process,the organic-modify process mechanism was studied,and the dispersing of modified nano-silica particles in tetrachloroethane solvent and PBT were investigated.FIRT,TEM,SEM results indicated that the epoxy group of E-MA-GMA could react with the hydroxyl groups of silica surface,helped to reduce the interactions of nano-silica particles particles and improve the dispersion of nano-silica on PBT and the interfacia...

surface modification ；溶液法利用功能化弹性体E-MA-GMA对纳米二氧化硅进行表面有机化修饰改性，分析了表面改性过程机理，同时考察了改性后纳米二氧化硅在四氯乙烷溶剂和PBT基体中的分散情况；FIRT、TEM、SEM测试结果表明，E-MA-GMA的环氧基团与纳米SiO_2的—OH基团发生反应，降低纳米二氧化硅粒子间的相互作用力，改善了纳米二氧化硅在PBT基体中的分散，提高复合材料的相容性。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新