2、

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

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3、

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。

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5、

Reaction Kinetics of RIM Pu Prepolymer

RIM聚氨酯弹性体预聚物的反应动力学研究

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6、

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。

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7、

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。

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8、

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

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9、

the route for synthesizing the prepolymer based on toluene diisocyanate ( tdi), trimethylol propane ( tmp) and 1,4 butanediol ( 1,4 bd) in presence of catalyst has been described.

叙述了甲苯二异氰酸酯(TDI)与三羟甲基丙烷(TMP)和1,4丁二醇(1,4BD)在催化剂的作用下制备预聚体的合成路线。

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10、

mixing the prepolymer and tdi-tmp adduct produced one-component polyurethane finishing coating.

将预聚体与苯酚封闭的三羟甲基丙烷甲苯二异氰酸酯加成物混合配制成单组分聚氨酯涂料。

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11、

Study on PU Prepolymer Modified Epoxy Resin Adhesives for Optical Instrument

聚氨酯改性环氧树脂光学结构胶的研制

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12、

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

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13、

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。

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14、

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

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15、

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。

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16、

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;

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17、

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。

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18、

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。

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19、

Deamination reaction of the prepolymer with urea at 125 ℃ for 8 h gave a product with amic number of 32.3%.

脱氨化反应在125℃时反应8h所得产物的胺值为32.3%;

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20、

The effects of prepolymer, active diluent and photosensitize on coating modification was discussed. Determination of Conductivity of Surfactant Activity Coefficients of Dilute Aqueous Solutions

在预聚物、性稀释剂和光敏剂等方面讨论了该涂料的改性。电导法测定表面活性剂稀溶液的活度系数

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