1·The complex chemical crosslinking PU network means that a PU network is cured from the curing system which includes the prepolymer and curing agent with the functionality more than 4.
所谓复杂化学文联型聚氨酯网络是指固化体系中含有官能度大于4的预聚物及固化剂固化形成的交联网络。
2·The present invention also relates to a coating composition that includes magnesium powder and a silane modified epoxy isocyanate hybrid polymer or prepolymer.
本发明还涉及一种涂料组合物，其包括镁粉和硅烷改性的环氧异氰酸酯混合聚合物或预聚物。
3·A solid product formed by polymerizing a urethane prepolymer in the presence of a curative has a Bashore rebound that is less than about 38%.
通过在固化剂存在下使氨基甲酸酯预聚物聚合而形成的固体产物具有小于大约38%的巴肖氏回弹。
4·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。
5·Curing agent 4, 2 '- and 4, 4' -methyl diphenylene diisocyanate prepolymer and preparation thereof.
一种固化剂4,2-及4,4-二苯基甲烷二异氰酸酯预聚物及其制备方法。
1·The article gave a minute description of operational method and skill in measuring trace free TDI in polyurethane prepolymer by gas chromatography.
详细叙述了用气相色谱法测定聚氨酯预聚体中微量游离tdi的操作方法和技巧。
2·The alkyd resin, silicone prepolymer and alkyd-silicone block copolymer were characterized bv use of iR and SEM.
采用红外吸收光谱图和透射电镜表征了醇酸树脂、有机硅预聚体以及醇酸-有机硅嵌段共聚物。
3·The invention is mainly prepared by crop straw, polyisocyanate or isocyanate prepolymer, water, foam kicker, foam stabilizer and foaming agent.
本发明主要由作物秸秆、多异氰酸酯或异氰酸酯预聚体、水、发泡催化剂、泡沫稳定剂和发泡剂制成。
4·The functional groups of prepolymer are not changed with supercritical CO2 inducing crystallization.
超临界CO2诱导结晶并未引起预聚体官能团的改变。
5·On the basis of counting solids, in the compound resin, the weight ratio of the acrylic resin with glycidyl and the siloxane prepolymer is between 10 and 40 to between 60 and 90.
以固体计，所述复合树脂中，带有缩水甘油基的丙烯酸 树脂与硅氧烷预聚体的重量比为10～40∶60～90；