查询词典 polyester resin

Firstly, by using DSC, we analyzed the effect of the type and content of initiators on the curing reaction, Then, through FTIR, we discussed the final degree of cure of the cured resin and the performance of the cured resin by testing the static mechanical performance and DMTA, found that moderate content and ratio of the initiators system can cause the moderate cure temperature, increase of exotherm and the final degree of cure result from the cooperation effect of the two kinds of initiators, and found that the cooperated initiators system can effectively increase the final degree of cure even in low content.

通过差示扫描量热法分析了不同固化剂体系对树脂固化行为的影响，用红外光谱分析了不同固化剂体系下的浇铸体的固化度，并对树脂浇注体静态力学性能及动态机械热分析，认为不同活性的固化剂联用存在协同效应，使固化反应温度适中，固化反应更加充分，提高树脂固化度和扩大聚合物网络，使树脂浇注体拥有良好的力学性能和耐热性。

This paper prepared three types of Uron resin according to different kind of synthesis processes, and then obtained several mixed urea-formaldehyde resin sby mixing Uron resins with normal UF resins at different experiment conditions.

以不同工艺制备了三种含尤戎结构的脲醛树脂，通过其与普通脲醛树脂的混合制得多种混合脲醛树脂。

A method and device for continuously supplying drops into female moldings which are rotatingly movable for manufacturing moldings, wherein synthetic resin in molten condition extruded from an extrusion opening is cut by a cutter attached to a holding mechanism to form the molten resin into drops in a determined quantity, the drops are held and conveyed by the holding mechanism, and the drops are forcibly inserted and supplied into the concaves of the female moldings.

是一种将用于对成形品进行成形的滴物向旋转可动的形成阴模连续供给的方法及装置，将从挤压开口部挤压出的熔融状态的合成树脂通过附设在保持机构上的切断工具切断、形成定量的滴物，利用保持机构将滴物保持输送，向成形阴模凹部强制插入、供给。

Phenolic resin was modified by propolymer,which was made of Poly copolymerized with epoxy resin.

采用热塑性聚芳醚酮与环氧树脂制得预聚体，并用预聚体改性酚醛树脂，起到增韧作用。

Resin, whether natural or synthetic, polymer or lowmolecular resin are required to have and dispersancy, matastatic, quick-drying, gloss and crocking.

树脂（无论是人造的或是合不败的，无论是矮不合子还是矮不合子树脂）都需具有不合散性、迁徙性、迟干性、平泽量以及耐磨擦性。

Studied the extraction and isolation technology of the raw material Tongguangteng origins from Sichuan, decocted it by water, and used macroporous resin to adsorb it twice, then use macroporous ion exchange resin to purify it.The yield of the saponin gained is about 1%, and the content is more than 90%.

以川产通光藤为原料，对其皂苷的提取分离工艺进行了研究：采用水煎煮、两次大孔吸附树脂吸附一大孔离子交换树脂纯化的工艺，制得皂苷的收率约为1％，含量高于90％。

And the heat decompounding temperature of the resin is 350℃,which is confirmed by the TGA of cured resin.

同时对改性后树脂固化物进行热失重分析，确定树脂固化物热分解温度为350℃。

This thesis did the next research about the appliance of ionic exchange resin in the aspects of the abstraction in the VC abstraction shop manufacture process .1, The text filtrated ion exchange resin .

本论文对离子交换树脂在VC生产中的提取工序中的应用进行了以下几方面的研究：1、本文对离子交换树脂的进行了筛选。

The research results showed that resin bond could hold the self-sharpening diamond more tightly than ordinary diamond, for CSD diamonds have irregular shape, rough surfaces and many incurvated angle. Under the condition of the same grinding efficiency, the grinding ratio of resin bond grinding wheels made with self-sharpening diamond was 1.6 times as high as that of the grinding wheels made with ordinary diamond.

试验结果表明，由于CSD形状不规则，有许多凹入角和粗糙表面，树脂结合剂对CSD的把持力较普通金刚石强，所以在磨削各参数相同的条件下，自锐性金刚石砂轮与普通金刚石砂轮相比，其磨削比提高60%以上。

In cases the change over production are taken for resin molders, only with the purge cleaning, it may not be able to clean all of the burned resin.

假如生产更换了树脂模具，只进行净化，清洁，可能并没有清理掉烧焦的树脂。

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。