查询词典 polyester resin

BACKGROUND: Soft-start is a newly photoactivation mode, which has certain effect on composite resin. However, previous study mainly concentrated on the conventional resin-based composites, the reports regarding soft-start on packable resin-based composites is poorly understood.

背景：弱光启动是近年来应用于临床的新的固化方法，其对复合树脂的性能具有一定的影响，以往国外的研究主要是针对通用型树脂进行的，而对可压型树脂的研究报道较少。

Results The purification effect was satisfactory when the concentration of original solution of the extract of Cacumen Platycladi was 0.20 gmL^(-1), the loading amount was 0.375 g of Cacumen Platycladi per 1 mL of wet AB-8 resin, the adsorption velocity was 1 mLmin^(-1), the eluant was 70% alcohol being 4 times as much as the resin volume, and the elution velocity was 2 mLmin^(-1). AB-8 resin could be used for 3 times repeatedly after being reproduced by 95% of ethanol and 1 moLL^(-1) of natrium hydroxydatum. The remaining rate of the total flavonoids and quercitrin was over 70% and 95% respectively, and the remaining rate of peaks 1~3 was over 90%.

结果 AB-8型大孔吸附树脂纯化效果较好，最佳工艺条件为：上样液浓度为含生药量0.20gmL^(-1)，上样量为每1mL湿树脂上样0.375g生药，吸附速率为1mLmin^(-1)，洗脱液为4倍柱体积的70%乙醇，洗脱速率为2mLmin^(-1)；树脂经95%乙醇和1moLL^(-1)氢氧化钠溶液再生后，可重复使用3次。

Two commercial biaxially oriented polypropylene resins, resin A and resin B, having different processing properties, were fractionated by preparative temperature rising elution fractionation , and the TREF fractions were further characterized. No long-chain branching was found in either resin A or B.

首次将高温GPC与动态激光光散射检测器联用，建立了流动型DLS和停流型DLS方法，测定聚合物的流体力学半径，研究聚合物在溶液中的形态和构象，拓展了GPC-TALLS/DLS联用仪的应用范围。

Resin transfer molding mould was manufactured with bisphenol-A epoxide vinylester resin as matrix,poly as low shrinkage additive and glass fiber tricot as reinforcing material,according to the basic requirement of matrix resin of RTM mould.

根据树脂传递模塑模具对基体树脂的基本要求，选用双酚A环氧乙烯基酯树脂为基体，聚乙酸乙烯酯为低收缩添加剂，玻璃纤维经编织物为增强材料，并加入相应的助剂，制备了复合材料RTM模具。

Urethan resin for better stability, but business card printing and membership card making suitable to their needs and less soluble Li anzhai and other styryl modified monomaleate resin, water-based Amino resins, and polyvingl acid and carboxymethly celluiose, and so on, these polymer resin generally with the-COOH,-OH,-NH

氨基甲酸乙酯树脂的稳定性较好，但制卡和会员卡制作适性和可溶性要略差一些，其它还有用苯乙烯改性马来酸树脂、水性氨基树脂以及聚乙烯酸和羧甲基纤维素等，这些高分子树脂一般均含有-COOH、－OH、－NH

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。

The Presence Application and Developing of Resin Industry;2. Study on Modification of Octyl-phenolic Resin by Rosin;3. Abietic type resin acid is the main ingredient of rosin.

松香是我国重要的生物质资源，枞酸型树脂酸是松香的重要成分，它们的分离提纯及其衍生物的合成与生物活性研究对于开发松香深加工产品具有重要意义。

The isomerization of resin acid was studied by HCl catalysis method, high temperature catalysis method and microwave-assisted method. Separation of abietic acid was analyzed with recrystallization method and many organic amine salt methods; Using abietic acid separated from resin acid as raw materials, 6 compounds of abietic-type resin acid derivetives were synthesized.

从产率、纯度和成本等方面分析对比了改进的二戊胺盐法、A胺盐法、B胺盐法和文献报道的二戊胺盐法分离提纯枞酸；以得到的枞酸为原料，进行氧化合成，得到6种枞酸的氧化衍生物，通过柱分离得到2种枞酸氧化衍生物纯品，并测试了其抑菌和对家蝇的拒食活性。

The resulting epoxy resin cured with phosphorus-containing aralkyl cyanate ester exhibited better the glass transition temperature and modulus of elasticity than epoxy resin cured with phosphorus-containing aralkyl novolac resin.

实验结果显示，含磷芳烷基氰酸酯之环氧树脂硬化物，由於形成坚硬的Oxazolidone结构，使得其玻璃转移温度与弹性储存模数较含磷芳烷基酚醛树脂之环氧树脂硬化物为高。

Were used to enhance the toughness of phenolic resin, Carbon nanotube, nanosoil, bismaleimide, boron, tar, organic silicon, benzotriazine, phenolic-triazine resin were used to heighten the heat resistance of phenolic resin.

为提高酚醛树脂的性能，扩大其适用范嗣，国内外酚醛树脂行业及塑料行业对酚醛树脂改性开展了大量的研究T作，提高其韧性和耐热性是酚醛树脂的发展方向。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。