查询词典 polyester resin

The compatibility depended onthe structure and content of the ion group in the polysiloxane ionomer, as well as thelevel of the ionomers. The surface composition of the cured epoxy resin modified by the polysiloxaneionomers HQAS-PDMS was analyzed by XPS. The results indicated the remarkableenrichment of polysiloxane chains on the surface of the cured epoxy resin.

用X-射线光电子能谱分析了硅氧烷离聚体HQAS-PDMS改性的环氧树脂固化物表面的化学组成，结果表明聚硅氧烷在环氧树脂固化物的表面发生明显富集且成梯度分布，其富集程度决定于硅氧烷离聚体与环氧树脂的相容性及成型基质表面能的高低。

Resin coated sand: all kinds of resin coated sand for iron, steel, aluminium, copper casting.

4覆膜砂：各种型号的铸钢、铸铁、铸铝、铸铜的覆膜砂

Brix pear juice was treated with FPC-21 resin to reduce the pH value to 4.05, then treated with XAD-16 resin to rise color value (T 440) up to 85%, and concentrated to 70 °Brix. The color value of PJC is over 45% after storing at 37℃ for 35 d, which can meet the export regulation.

采用阳离子树脂处理将酥梨汁的pH值降低为4.05，再经吸附树脂将色值提高为85%，浓缩至70 °Brix的酥梨汁在37℃下贮存35 d后，色值仍大于45%，符合出口要求。

AS commonly known as SAN, GPPS.In the meantime to address the deficiencies and improve the thermoplastic resins, AS resin is styrene and acrylonitrile polymerization. AS itself as a bit of light-yellow transparent resin, acrylonitrile as many features, AS has excellent hardness, Resistance good character, rigid advantages; AS it has been widely used in electrical equipment, cosmetics containers.

毕业论文字数：14096页数：27）摘要 AS俗称SAN，为针对GPPS的缺失而改良的热可塑性树脂，AS树脂是由苯乙烯和丙烯腈聚合而成，AS本身为略带浅黄色的透明树脂，由于丙烯腈的诸多特性，AS具有硬度佳、耐药品性好、刚性强等优点，；因此AS被广泛应用于电气器具、化妆品容器、汽车部件或其它杂货等。

The main structure of Phenolic resin curing is a three-dimensional network linked by methylene between phenols.It is shown in the process of thermal degradation that the thermal degradation of phenols and methylenes,and degradation product of gas small-molecule is a little;While the character of the epoxy resin molecule structure is that the milecule chains contain lively epoxy group,which can be at the end ,middle of the molecule or forms rings structure.

酚醛树脂固化物的主要结构为苯酚之间通过亚甲基连结的一种三维体型网络，因此在热降解过程中主要表现为酚基和亚甲基的热降解，降解后气态小分子产物很少；而环氧树脂的分子结构是以分子链中含有活泼的环氧基团为其特征，环氧基团可以位于分子链的末端、中间或成环状结构。

Sythesis and application of chlorostyrene-DVB strongly acidic cation exchange resin ;2. For this study,a series of poly( p -amino styrenes) with various amounts of supported hydrogen chloride,and a series of strongly acidic cation exchange resin s with various exchange capacity were synthesized,and their catalytic property for ketalization of cyclohexanone and glycol were investigated.

通过测定固载了不同量的氯化氢的聚和不同交换量的强酸性阳离子交换树脂催化的环己酮与乙二醇的缩酮化反应缩酮的收率，研究了聚合物固体酸催化剂的疏水性对其催化缩酮化反应性能的影响；发现在一定范围内增加催化剂的疏水性，可提高缩酮化反应的收率。

Please not that a 250 mm wide die opening will produce a film or sheet with less width since you have a "neck in" effect when you pull out the melted resin from the die before it reaches the surface of the chill roll. the width you can achieve depends on the melt strength of the resin as well as the distance between the die lip opening and the chill roll. but in general, about 80% of the die opening width can be achieved.

注意：250毫米宽开口的模头只能获得小于此宽度的薄膜或片材，因为当熔体树脂被从模头拉至冷辊上时会产生&颈缩&效应，最终获得的实际宽度依赖于树脂的熔体强度以及模唇开口同冷辊之间的距离，但总而言之，可获得模头开口宽度80%的产品宽度。

Leading products have carved sludge, Color Clay, Fimo clay, plastic flower arrangements of mud, mud°box, six-storey cement, mold clay, etc., the new products developed are: replace the Bolero resin, resin cost only Protoplasmic one-fourth of sandstone products, the product is that a great majority Products alternatives Bolero, low costs, and can be widely used in indoor and outdoor decoration, pedal board,íù, garden series products such as coffee table base of production, is to reduce the cost of the best raw materials.

主导产品有精雕油泥，彩色油泥，软陶泥，胶性插花泥，盒装手扳泥，六层英泥，模具泥等，新开发的产品有：代替波丽树脂，成本只是树脂原浆四份之一沙岩产品，该产品是大部份波丽产品的替代品，成本低廉，可广泛用于室内外装饰，脚踏板，罗马柱，花园系列茶几底座等产品生产，是降低成本的最好原料。

This thesis firstly introduces the structure and characteristics of the resin-pouring dry transformer, and some resolvents of the technique problem that might meet in actual production. On this basis, the thesis introduces the design theories foundation and main technological flow of the resin-pouring dry transformer.

本文在介绍了干式绝缘变压器基础知识的基础上，概述了树脂浇注绝缘干式变压器的技术规范及结构特点，而且，对于生产实际中可能遇到的技术问题，也给出了一些意见及解决方案。

Methods: Thirty extracted human molars whose pits and fissures on the occlussal surface had been inoculated with Escherichia coli were randomly divided into three groups: group A was treated with newly confected phenol-formaldehyde resin which resinified the dental fissure contents,group B was sealed Bis-GMA resin in pits and fissures and group C as the control group was only treated by cleanin...

选择30颗人离体磨牙，在咬合面点隙裂沟接种大肠杆菌，随机分为3组；A组以新配制的酚醛树脂使点隙裂沟内容物树脂化，B组以成品Bis-GMA封闭剂作点隙裂沟封闭，C组仅进行表面清洗作为对照组；各组分别沿裂沟点隙处片切牙齿，放入LB培养基培养，观察大肠肝菌生长情况。

However it can often be frust ating for a child when people are unable to pronounce their name.

但它往往可以令人沮丧的一个孩子当人们无法断言他们的名字。

All these compounds were obtained from this genus for the first time. Compound, 4-cumylphenol, was a new nature product.

所有化合物均为首次从本属海藻中分离得到，其中4cumylphenol为新天然产物。