共查询到20条相似文献,搜索用时 62 毫秒
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简单综述了复合薄膜用聚氨酯胶粘剂的特性、品种及发展方向,对用于复合薄膜生产的高固含量溶剂型双组分聚氨酯胶粘剂、无溶剂聚氨酯胶粘剂、醇溶型溶剂型双组分聚氨酯胶粘剂、水性聚氨酯胶粘剂、耐蒸煮型聚氨酯胶粘剂及功能性聚氨酯胶粘剂的发展情况进行了介绍。 相似文献
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我国聚氨酯胶粘剂发展简述 总被引:1,自引:0,他引:1
简述我国聚氨酯胶粘剂发展概况。重点介绍促进我国聚氨酯胶粘剂增长的主要因素以及发展趋势。在胶粘剂品类方面,简述了我国鞋用聚氨酯胶粘剂、复合薄膜用聚氨酯胶粘剂、可水分散多异氰酸酯和聚氨酯密封剂的生产科研现状及其发展,明确提出无溶剂和水基型聚氨酯胶粘剂发展的必然性和可能性。 相似文献
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我国聚氨酯胶粘剂的发展现状及趋势 总被引:12,自引:0,他引:12
评述了我国聚氨酯胶粘剂的发展现状和趋势,对一些主要胶种如鞋用聚氨酯胶、通用型聚氨酯胶、复合膜用聚氨酯胶粘剂、单组份聚氨酯液体胶、无溶剂聚氨酯结构胶、水性聚氨酯胶粘剂、单组份湿固化聚氨酯密封胶、聚氨酯泡沫密封剂、反应型聚氨酯热熔胶等的发展状况、市场和趋势分别作了概述。 相似文献
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概述了近年来国内外聚氨酯胶粘剂研究开发和应用进展,重点介绍了聚氨酯胶粘剂的发展动态和几类主要的聚氨酯胶粘剂。针对我国实际情况对今后的发展作出了展望。 相似文献
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聚氨酯胶粘剂研究的进展 总被引:1,自引:0,他引:1
程晶波 《精细化工原料及中间体》2003,(6):16-19,15
概述了近年来国内外聚氨酯胶粘剂研究开发和应用进展,重点介绍了聚氨酯胶粘剂的发展动态和几类主要的聚氨酯胶粘剂。针对我国实际情况对今后的发展作出了展望。 相似文献
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介绍聚氨酯胶粘剂主要应用领域现状、水性聚氨酯性能优点和改性途径,认为环保已成为胶粘剂进一步发展的瓶颈制约,提出了今后数年有望较快速度发展的胶粘剂品种。指出未来二三年内水性聚氨酯胶粘剂大量取代溶剂型胶粘剂的可能性不大,此期间仍是低含三苯溶剂的胶粘剂市场。 相似文献
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Homogenous waterborne polyurethane/polyacrylate emulsions were synthesized based on the prepared polyurethane and polyacrylate through a facile process. The attention was attracted to the miscibility and performance of waterborne polyurethane and polyacrylate. The structures and properties of waterborne polyurethane and waterborne polyurethane/polyacrylate samples were characterized by using Fourier transform infrared spectroscopy, transmission electron microscope, X-ray photoelectron spectroscopy, X-ray diffractometer, thermogravimetric, and so forth, as well as solid content and tensile testing. The results showed that the micro morphology of waterborne polyurethane/polyacrylate emulsion presented single-phase structure with the stoichiometric polyacrylate content increasing from 33% to 80% to waterborne polyurethane. The waterborne polyurethane/polyacrylate films surface is rich in polyacrylate phase. Meanwhile, waterborne polyurethane/polyacrylate composites showed significant improvement in thermal stability and elongation at break, smaller particle size and narrower particle size distribution comparing with waterborne polyurethane. 相似文献
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聚氨酯胶黏剂在汽车上的应用及研究进展 总被引:2,自引:1,他引:2
介绍了几种聚氨酯胶黏剂如单组分湿固化聚氨酯挡风玻璃密封胶、双组分聚氨酯胶黏剂、水性聚氨酯胶黏剂、聚氨酯反应性热熔胶等在汽车制造和修理上的应用现状及研究进展,重点介绍了应用最为广泛的单组分湿固化聚氨酯挡风玻璃密封胶。指出汽车用聚氨酯胶黏剂将向环保和高性能方向发展。 相似文献
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The performance of acrylic polyurethane composite coating and aliphatic urethane composite coating in 3.5% NaCl solution under ultra-violet radiation was studied with methods of EIS, SEM and FTIR. For aliphatic polyurethane coating, the coating resistance decreased and the coating capacitance and porosity increased more quickly than acrylic polyurethane coating. The acrylic polyurethane composite coatings showed better performance than aliphatic polyurethane composite coatings. IR spectra showed that under UV irradiation conditions, the failure mechanism of the two polyurethane coatings was the transformation of sec-amide to primary amides. The fractured bonds in acrylic polyurethane were mainly C–O bonds, while in aliphatic polyurethane they were mainly C–N bonds. The lower protection property of aliphatic polyurethane coating may be mainly attributed to the C–N bonds which are more liable to be broken. 相似文献