prepolymer

The properties of products prepared by acetone process and prepolymer mixing process are compared.

简述水性聚氨酯制备方法,并对丙酮法和预聚物分散法所制产品性能进行比较.

Content of isocyanate group in waterborne polyurethane prepolymer is tested with acetone as solvent, n-dibutylamine-toluene solution as reaction liquid and ethyl acetate as thinner.

对水性聚氨酯预聚体中异氰酸酯基团的容量测定进行了研究。

In this paper, we adopt prepolymer method to synthesize casting PU elastomer.

本文采用预聚物法合成浇注型聚氨酯弹性体.

A low Mw polyamide resin is reacted with ethyl acrylate dicarbamate to form a comb-type prepolymer with polyamide as backbone chain and ethyl acrylate dicarbamate as side chain.

低相对分子质量的聚酰胺树脂和丙烯酸乙酯氨基甲酸酯基一异氰酸酯通过加成反应制得以聚酰胺为主链、丙烯酸乙酯二氨基甲酸酯为侧链的梳型预聚物。

According to the molecule design, the prepolymer which has unsaturated groups was synthesized by the reaction of epoxy groups of epoxidized soybean oil with crylic acid, under 110 ℃ using triphenyl phosphine catalyst.

一定温度下，环氧豆油与丙烯酸在催化剂的作用下进行酯化反应，合成出一种在分子结构中具有不饱和双键的预聚物&环氧豆油丙烯酸酯。

The addition reaction with alkaline catalyst was used for the preparation of urea-formaldehyde prepolymer of rose perfume microcapsule.

以脲醛树脂为囊壁的玫瑰香精微胶囊，其囊壁原料脲-甲醛预聚体的制备，采用了碱催化下的加成反应工艺。

Compared to the three-step distillation process, this technology shows advantages of simple technology and less investment for facilities. It has shown that the present two-step separation by use of thin film evaporator for reduction of free TDI in polyurethane prepolymer is feasible.

得到的TDI加成物和三级蒸馏相比，工艺简单，设备投资小，说明内冷式薄膜蒸发器设备采用两级分离聚氨酯预聚物中的TDI是可行的。

The IR spectra for prepolymer, blocked prepolymer and decomposed by heating are compared.

对封闭前后和加热解封后的红外图谱作了比较.

Thin-film Evaporation is economical and efficacious technique in usual technique for separating TDI from polyurethane prepolymer.

薄膜蒸发技术在几种常见的降低聚氨酯固化剂中游离甲苯二异氰酸酯(TDI)的方法中,是最经济有效的.

Study on synthesis of waterborne UV-curable PUA prepolymer and preparation of PUA emulsion

水性光固化聚氨酯丙烯酸酯预聚体的合成及乳液的制备研究

Hexamethylene diisocyanate ( HMDI ) may be used in prepolymer, in place of TDI.

六亚甲基二异氰酸酯 ( HMDI ) 可用在预聚物中代替甲苯二异氰酸酯〔TDI〕.

One-component PU adhesives were prepared from the blocked prepolymer and hydroxyl group-containing prepolymer.

以封闭型预聚体和含 羟基 预聚体为主要原料制备得 单组分 聚氨酯(PU)胶粘剂.

Reaction Kinetics of RIM Pu Prepolymer

RIM聚氨酯弹性体预聚物的反应动力学研究

The vinyl-terminated prepolymer polymerized with styrene ( ST) in the presence of free radical initiator to obtain a crosslinked block copolymer.

此预聚物再与苯乙烯（ST）通过自由基聚合，得到交联的嵌段共聚物。

The preparation prepolymer for soft PU elastomer and its application were investigated.

对软质PU弹性体用预聚体及使用技术进行研究.

The chemical modification of PHB is comprised of radiation-induced graft polymerization, polymerization based on PHB prepolymer, reactive polymer blending, etc.

PHB化学改性的方法包括辐射聚合、大单体反应改性、反应性共混等。

One-component moisture curable polyurethane reactive hot-melt adhesive introduced in this paper consists of three parts, isocyanate-terminated urethane prepolymer, tackifying resin and stablizer.

本文叙述的单组分湿固化聚氨酯反应型热熔胶是由端异氰酸酯基聚氨酯预聚体、增粘树脂和稳定剂三部分组成。

Gives the viscosity control method of polyurethane prepolymer preparation.

给出了聚氨酯预聚物合成的粘度控制方法。

The article discusses blend polymerization caused by mixing prepolymer into monomers.

本文论述了预聚物溶于拟共聚单体发生原地聚合反应时的掺聚效应.

Siloxane modified polyurethane ( PU) prepolymer was prepared by reaction between poly ( dimethylsilone) oligomers with terminal amine group and PU prepolymer, then isocyanate group was blocked with sodium bisulfite ( NaHSO 3) and thermo-reactive water-based polyurethane was obtained by dispersion method in water.

用氨丙基聚硅氧烷与PU预聚体反应生成含硅氧烷的PU预聚体，通过NaHSO3封闭NCO基，并在水中分散制得有机硅改性热反应型水基聚氨酯乳液。

The applications of antioxidants in alkyd resin, TDI prepolymer and TDI primer have been described.

介绍了抗氧剂在醇酸树脂 、 TDI预 聚物和TDI三聚体中的应用,以及其配方和生产工艺.

Hexamethylene diisocysnate ( HMDI ) may be used in prepolymer, in place of TD I.

六亚甲基二异氰酸酯 ( HMDI ) 可用在预聚物中代替甲苯二异氰酸酯〔TOI〕.

Adopted liquid polysulfide prepolymer cured at high temperature for sealing cap at the first time.

首次采用液体聚硫橡胶制成预聚体再高温硫化成型,压制新型聚硫橡胶密封帽制品.

The synthetic of polyurethane waterproof coating is studied, and the discussed mechanic performance effected by NCO content in prepolymer, solid and liquid loading material is discussed.

研究了聚氨酯防水涂料的合成，探讨了预聚体中NCO含量、固体填料和液体填料对其物理机械性能的影响。

The effects of the mole ratio, reacting temperature and time on blocking reaction for prepolymer were studied.

讨论了活性氢与异氰酸酯基团的摩尔比、反应温度、反应时间对封闭反应的影响；

Preparation and Properties of Soya Bean Oil Based Polyurethane Prepolymer

大豆油基聚氨酯预聚体的制备及其性能研究

Development of Castor Oil Based Alkyd Resin for 2K Polyurethane Prepolymer Coatings

蓖麻油制备醇酸预聚型双组分聚氨酯树脂涂料的研究

The comparison of prepolymer dispersing with inverted core shell method shows that the appearance of dispersion prepared by the former is clearer and the viscosity of that lower than by the later.

用预聚物分散法制得的PUA水分散液外观较清澈，其粘度低于核壳反转法制得的分散液。

The effects of prepolymer, active diluent and photosensitize on coating modification was discussed.

在预聚物 、 性稀释剂和光敏剂等方面讨论了该涂料的改性.

Study on Separation of Residual TDI from TDI-TMP Prepolymer by Thin Film Evaporator

薄膜蒸发器分离聚氨酯固化剂中游离TDI的研究