查询词典 aldehyde resin

The nickelous chloride both may use in to galvanize, and is prepares the galvanization chemical thionamic acid nickel the important raw material, lead is affects the electronickelling quality a important attribute, in the present industry 331 ion exchange resin deleading effect still could not arrive in the electronickelling the lead content standard, used pocket weak basicity resin XSC312 after the screening experiment determination to take from the nickelous chloride solution intermediate ion exchange except the micro lead resin, inspected the material fluid pH value, the contact duration in the ionic exchange column to the ionic exchange adsorption lead influence, has determined the resin adsorption capacity and inspected the resin analysis performance.

氯化镍既可用于电镀，又是制备电镀化学品氨基磺酸镍的重要原料，其中的铅是影响电镀镍质量的一个重要因素，现行工业中的331离子交换树脂除铅效果尚不能到电镀镍中铅含量标准，经过筛选试验确定采用大孔弱碱性树脂XSC312作为从氯化镍溶液中离子交换除微量铅树脂，在离子交换柱中考察了料液pH值、接触时间对离子交换吸附铅的影响，测出了树脂的吸附容量并考察了树脂的解析性能。

It is shown that the cyanate resin has low cure reactivity and high flowability, so the resin flow can not be controlled easily. The precure process makes the resin cure to a certain extent, decreases resin flowability, improves resin processability significantly, and enhances the composite laminates quality.

研究结果表明，该氰酸酯树脂反应活性低且流动性高，热压工艺中树脂流动不易控制；预固化可使氰酸酯树脂发生一定程度的自聚反应，从而降低其流动性，可明显改善氰酸酯树脂的工艺性，提高了层板的成型质量。

One of the important tasks in Resin Transfer Molding is the selection of appropriate processing parameters, so that the mold cavity will be filled completely and the composite quality can be guaranteed. Successful completion of these tasks requires knowledge of the resin flow, especially the resin flow front profiles, the pressure distribution, temperature distribution and the resin conversion distribution et al. In this paper, the governing equations of resin flow are presented on the base of the seepage mechanics, the thermodynamics and the chemical kinetics. The unlumped temperature system i.

中文题名树脂传递模塑工艺过程数值模拟与固化过程监测研究副题名外文题名 Investigation on numerical simulation and curing process monitoring of resin transfer molding 论文作者李海晨导师王彪教授学科专业工程力学研究领域\研究方向学位级别博士学位授予单位哈尔滨工业大学学位授予日期2002 论文页码总数10，121页关键词树脂固化光栅树脂传递模塑复合材料馆藏号BSLW /2003 /TQ320 /7 树脂传递模塑(Resin Transfer Molding，RTM)工艺过程研究的主要任务之一是选择合适的工艺参数，以使树脂充分润湿增强纤维，保证固化后产品质量。

Two series of polyurethane acrylate grafted acrylic resins (Acr-g-TPU-PETA and Acr-gPPU-PETA) self-emulsifying systems are obtained by grafting -NCO group modified polyurethane acrylates with acrylic copolymer prepared from n-butyl acrylate, styrene,βhydroxyethyl methacrylate and acrylic acid The self-emulsifying systems showed Newtonian fluidity with viscosity closed to that of water, the solid contents were around 30% The T〓 of 15～4℃ for dried film before photocuring favored film formation at room temperature DSC and DMA results showed that PU-PETA is compatible with acrylic resin in the grafted resin The TG and dTG curves for Acr-g-PU-PETA samples were substantially different from the corresponding blends, and the brodened dTG peaks for photocured grafted resin suggest that there might be multiple interactions among chain segments The photocued film of the grafted resins self-emulsifying system exhibited good overall properties with polyurethane acrylate grafts ranging from 30% to 50%, and Acr-g-TPU-PETA series showed better properties than Acr-gPPU-PETA series The adhesion of the photocured film was 1～2 grade, impact strength was 50kg-cm and flexibility was 1mm The Shore hardness and the adhesion of the film decreased markedly if PETA was replaced by HEMA as photoactive group due to the lower C=C double bond content in the grafted resin The polyhydroxy amine-linked thioxanthones photoinitiators can be evenly dispersed in self-emulsifying system without color spot appearing in the dried film The films photocured with IV〓～IV〓 generally exhibited higher Shore hardness, gloss and solventresistance than that cured with Irgacure 2959 and did not induce the rusting of the iron substrate Pigmenting with titanium oxide had no effect on the photocuring The polyhydroxy amine-linked thioxanthone IV〓 and IV〓 can be new candidates for the formulation of titanium oxide pigmented photocurable water-borne coatings for their pale-yellow appearance and slight interference with the color of the coatings WB 4759 with high water-solubility coalesced and separated from the dried resin film, and even induced the rusting of iron substrate.

以丙烯酸丁酯，甲基丙烯酸-β-羟乙酯，丙烯酸及苯乙烯合成厂丙烯酸共聚树脂，并与含-NCO端基的聚氨酯丙烯酸酯接枝反应，经水性化后，得到两个系列（Acr-g-TPU-PETA和Acr-g-PPU-PETA）各5个不同配比的丙烯酸树脂接枝聚氨酯丙烯酸酯自乳化体系，粘度与水相近，为牛顿流体，固含量30％左右。光固化前干燥涂膜的玻璃化转变温度在-15℃～4℃之间，有利于室温下成膜。DSC及DMA谱表明两种树脂基本相容。Acr-g-PU-PETA的热失重行为明显不同于共混材料，接枝样dTG峰明显宽化，表明接枝样中链段之间的相互作刚有多重性，丙烯酸树脂与聚氨酯之间有一定的相容性。接枝树脂自乳化体系光固化涂层的综合性能以聚氨酯丙烯酸酯成分为50％～30％者相对较好，且以Acr-g-TPU-PETA系列更理想。光固化膜的附着力为1～2级，冲击强度为50kg·cm，柔软性多为1mm。以HEMA代替PETA作为接枝树脂的活性基团，碳—碳双键密度太低，光固化膜交联点太少，硬度和附着力均较差。多羟基胺连硫杂蒽酮光引发剂能均匀分散于树脂自乳化体系和接枝树脂干膜中，不出现色斑，光固化膜肖氏硬度一般高于以Irgacure 2959为光引发剂的光固化膜，光泽度及耐丁酮溶剂性能均有所提高，不会诱导铁基生锈，钛白着色对光固化结果几乎没有影响。本论文所合成的多羟基胺连硫杂蒽酮光引发剂IV〓与IV〓为浅黄色，对光固化涂层的颜色干扰较小，为配制钛白着色光固化水性涂料提供了新的光引发剂。水溶性太强的WB 4759在干膜中易聚结析出，且对所附着的铁基有诱导锈蚀作用。

The basic concepts of coatings function, composition, classification. Various coatings: drying oil, rosin and lacquer, alkyd resin and polyester coating, amino resin coating, acrylic acid resin coating, epoxy resin coating, polyurethane coating, elementary organic resin coating. Several new coatings: high solid-constituent coating, water soluble coating, powder coating, light-sensitive coating, anti-corrosion coating, flame-retarded coating, anti-contamination coating, color changing coating, conductive coating and magnetic coating, aeroplane and aerospace dope.

涂料的基本概念：涂料的功能、基本组成、分类；各种涂料的制造及应用：干性油、松香与大漆，醇酸树脂与聚酯涂料，氨基树脂涂料，丙烯酸树脂涂料，环氧树脂涂料，聚氨酯涂料，元素有机树脂涂料；几种新型涂料简介：高固体分涂料，水性涂料，粉末涂料，光敏涂料，防腐蚀涂料，防火涂料，防污涂料，变色涂料，导电涂料和磁性涂料，航空航天特种涂料。

The types,structures of substrates and reaction mediums for the enzymatic synthetic polyphenol resin was surveyed and the manufacturing method,product structure and their performances of the polyphonel resin and aldehyde resin were compared.

概述了酶催化合成聚酚树脂用酶的种类、底物的结构、反应介质；比较了该树脂和传统酚醛树脂的生产、结构及性能特点；指出了其不仅具有良好的耐热性能，可作传统酚醛树脂的替代品，而且具有导电、发光等功能，在光电材料方面显示了极强的应用潜力，但降低HRP催化合成聚酚树脂的成本是其实现工业化亟待解决的问题。

The Automotive Finishes was composed of Cardura E 10-based acrylic resin with high-solids and excellent weather resistance as main resin, and Cardura E10-based polyester resin with high-solids as additional resin to be used to improve decorative properties, such as chubbiness, gloss, PGD,and so on, of the only acrylic amido automotive finishes.

该面漆以叔碳酸缩水甘油酯(商品名E10)改性高固体份丙烯酸树脂作为主体树脂，该树脂是具有高耐候性的丙烯酸树脂，以叔碳酸缩水甘油酯改性高固体份聚酯树脂作为添加树脂，弥补单纯丙烯酸氨基漆在丰满度、光泽、鲜映性等外观装饰性等方面的不足，从而形成高耐候性、高装饰性的高品质、高固体份汽车面漆。

A series of structural parameters and component parameters of novolac resin were concluded through DEPT 135 spectrum of typical novolac resin with low or high mass fraction,including o-o,o-p and p-p condensation percentage of total condensation reaction;o-,p-percentage of active point in condensation reaction;reaction percentage of different active points;condensation ratioof phenolic resin in double ortho way and the average number of resin.

为准确了解线形酚醛树脂的组成和微细结构，利用高分辨率核磁共振技术中近年发展起来的DEPT135测定方法，测定了线形酚醛树脂的有关结构参数：o-o位缩聚百分率、o-p位缩聚百分率、p-p缩聚百分率；参与缩聚反应活性点中o位占据百分率、p占据百分率以及各个活性点参与反应百分率；同核双邻位缩聚值；不同类型酚醛树脂的平均核体数。

The process conditions for trial production of low density polyethylene speciality resin (LD 163) for heat shrinkable film were selected after determining the speciality resin′s quality index and conjunctively based on the dependence of LDPE resin′s performance and relative mass and its distribution on the resin′s molecular chain structure, such as branched short and long chains.

确定了热收缩膜专用树脂LD163的质量指标后，根据低密度聚乙烯树脂性能与相对分子质量及其分布、短链支化、长链支化等结构的对应关系拟订了其试生产工艺条件。

The requirement of matrix resin for the high frequency and high performance copper clad laminate was introduced and polyphenylene ether resin, cyanate resin and polyimide resin were also discussed in detail.

介绍了高频高性能覆铜板对基材的性能要求，详细讨论了聚苯醚树脂、氰酸酯树脂及聚酰亚胺树脂的特性，并简要介绍了各种树脂基覆铜板的应用情况。

You can buy sweetened beverages, if that suits you.

你若喜欢的话，可以买些含有糖精的混合饮料。

As many of you are probably aware, Nick and Vanessa were recently faced with an embarrasing sex scandal after naked pictures of the two getting jiggy with it in a hot tub surfaced the net.

正如很多你可能知道，尼克和 Vanessa 最近面临一个尴尬的绯闻事件后，赤裸裸的图片两个越来越jiggy与它在浴缸中的一个热点浮现净。