查询词典 polyester resin

Natural insolation experiment and human accelerating aging experiment data on the fluorocarbon coating and other FEVE fluorocarbon resin coating to be used for national palaestra "bird nest" are introducted, and comparison is made to explain the main cause for the performance difference on different types of fluorocarbon resin coatings.

介绍了"鸟巢"国家体育场用氟碳涂料与其他FEVE型氟碳树脂涂料在海南的天然曝晒试验与人工加速老化试验数据，并进行了对比分析，阐述了各种类型氟碳树脂涂料在耐老化性方面存在差异的主要原因。

The main contribution of this paper is summarized as follow:1 Copolymer acrylate resin including hydroxyl, carboxylic and amina(-NH_2) is a new type of antifogging system and ahydrophi- lic antifogging constituents which is not found before.2 Water-soluble acrylate resin hydrophilic antifogging coating material is a new-type environmental protection material which takes ethanol as solvent and whose pastiness is adjusted by deionized water.3 The quality rate of accessory soft monomer ethyl acrylate and accessory hard monomer butyl methacrylate is 6 to 4, the quality rate of functional monomers in all monomers is 20 percent, the quality rate of MAA in the functional monomers is 22 percent, the quality rate of β-hydroxyl ethyl acrylate in the functional monomers is 8 to 10 percent and the remainder of functional monomer is acrylic acid.4 Cross-linking agent methylol acrylamide belongs to self-cross-linking system.

本文的主要贡献概述如下： 1 含有亲水羧基、羟基和氨基(-NH_2)丙烯酸共聚树脂是一种新型高效的防雾体系，用的亲水防雾组分是前所未有的。 2 以乙醇为溶剂制得水溶性丙烯酸树脂具有很好的水溶性能和防雾性能，只需加入去离子水就可以调节它的粘度，是一种新型的环保型防雾材料。 3 辅助软单体丙烯酸乙酯和辅助硬单体甲基丙烯酸甲酯最佳配比为质量比6∶4；官能单体占单体总量的20%，甲基丙烯酸占官能单体总量10～15%，甲基丙烯酸β-羟乙酯占官能单体总量的8～10%，剩下的为丙烯酸。

The invention relates to a silver polyethylene perchloride external anticorrosive coating and the making method thereof, adding polyethylene perchloride resin into mixed solvent of dimethylbenzene and butyl acetate, then adding in epoxy resin, chlorinated paraffin, epoxy chloropropane, polyacrylate copolymer solution, polymethyl alkyl siloxane solution, polyamide wax, and aluminum silver pulp, blending and grinding to make it.

本发明涉及一种银色高氯化聚乙烯外防腐涂料及制造方法，是将高氯化聚乙烯树脂加入二甲苯和醋酸丁酯的混合溶剂中，再加入环氧树脂、氯化石蜡、环氧氯丙烷、聚丙烯酸酯共聚体溶液、聚甲基烷基硅氧烷溶液、聚酰胺蜡、铝银浆经混合、搅拌、研磨制成银色高氯化聚乙烯外防腐涂料，可用于储罐、化工设备、钢架、桥梁、集装箱的外防腐蚀。

My company is the professional production of phenolic resin manufacturers, the main product has: 2402,213,214,217,219 and other types of phenolic resin.

我公司是生产酚醛树脂的专业厂家，主要产品有：2402、213、214、217、219等型号的酚醛树脂。。。。

The effect of thermoplastic phenolic resin and sand on performance of resin coated sand was researched.

研究了热塑性酚醛树脂和原砂对覆膜砂性能的影响。

OBJECTIVE: It is assumed that soft-start photoactivation had effect on packable resin-based composites, in addition, to investigate its effect on the hardness of packable resin-based composites.

目的：课题提出弱光启动固化对可压型复合树脂硬度产生影响的假设，并希望与通用型复合树脂进行比较加以验证。

The basic conception of the photopolymerization reaction, the constitution of the photopolymerization resin matrix and the kinds of the reinforced material s in the photopolymerization resin matrix composites were introduced.

介绍光固化反应的基本概念、光固化树脂基体的组成及光固化树脂基复合材料用增强材料的种类。

The changing rule of the hardness of SZ-01 photosensitive resin surface after curing with temperature, illumination distance, and illumination time was studied with orthogonal experiment and recurrent neural network methods. A group of reasonable technique parameters were found with genetic algorithm optimization, which can make the hardness of photosensitive resin after curing the highest.

综合利用正交试验和递归神经网络的方法，研究了光敏树脂SZ-01在光固化成形后表面硬度随着环境温度、光照距离及光照时间的变化规律，并利用遗传优化设计的方法，找到了一组合理的工艺参数组合，使得光敏树脂固化后的表面硬度达到最大。

Several factors affecting the synthesis of urea-formaldehyde resin adhesive,including formaldehyde to urea molar ratio,urea adding method,pli value,reaction temperature,reaction time,were discussed and several modifications of urea-formaldehyde resin were also compared.

介绍了脲醛树脂胶粘剂的研究现状与进展方向。探讨了影响脲醛树脂胶粘剂合成的主要因素，包括甲醛-尿素摩尔比、加料方式与顺序、pH值、反应温度和反应时间等，并比较了不同的改性方案。

Considering other differences that in leaves of Podocarpus there are three resin ducts under vascular bundle of midrib, mesophyll cells are differentiated into palisade tissue and sponge tissue; in leaves of Nageia, there is only one resin duct under vascular bundle in each vein and no obvious differentiation in mesophyll cells, palisade tissue can be found on both sides, and sclereids can also be found in mesophyll tissue.

结合罗汉松属植物主脉维管束下面有3个树脂道，叶肉分化为栅栏组织和海绵组织，而竹柏属植物每个叶脉维管束下面有1个树脂道，叶肉分化不明显，两面都有栅栏组织，叶肉中还具有大量石细胞等特征，认为罗汉松属和竹柏属在叶脉、叶形态和结构方面存在明显差异，2个属分开是比较合理的。

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。