共查询到20条相似文献,搜索用时 78 毫秒
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本文介绍了在有机过氧化物存在下,合成接枝聚合物的方法,以及接枝物用作热熔胶、热熔密封胶和热熔压敏胶粘剂的基体聚合物的性能和应用。 相似文献
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相熔聚合物热熔胶粘剂 总被引:1,自引:0,他引:1
相熔聚合物热熔胶粘剂PallavoorR.etal.发明背景1.发明领域.该发明阐述了相熔聚合物热熔胶粘剂,主要由以下组分构成:(1)低密度聚乙烯;(2)1一丁烯与乙烯或丙烯共聚物;(3)烃类增和剂;(4)从低分子且的液态系丁烯、无规聚丙烯及其它混合... 相似文献
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聚酰亚胺树脂是一种耐热性好、介电性能优异、机械强度高的高分子材料,可以作为结构胶粘剂的主体材料。本文综述了近年来聚酰亚胺胶粘剂的研究进展。 相似文献
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利用2,2-双[4-(4-氨基苯氧基)苯1丙烷及偏苯三酸酐合成聚酰亚胺齐聚物,并用此齐聚物改性环氧树脂胶粘剂。使用红外光谱、凝胶化时间、接触角和拉伸剪切强度对改性胶粘剂性能进行表征。结果表明,齐聚物的加入对环氧树脂固化反应具有促进作用;当100质量份环氧中加入16份齐聚物时,胶粘剂力学性能最佳;当齐聚物用量为20份时;胶粘剂表面能最高。 相似文献
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Li Sun Sheng Cao Weilan Xue Wanyu Zhu 《Journal of Adhesion Science and Technology》2016,30(11):1212-1222
Pentaerythritol diacrylate (PEDA) was synthesized by direct esterification from acrylic acid and pentaerythritol, and the reactive hot melt polyurethane adhesives (PURs) with high green strength were prepared from Poly(1,6-hexamethyleneadipate), PHA-3000, two kinds of Poly(propylene glycol) (PPG-1000 and PPG-4000) and PEDA as well as terpene-phenolic resin. Five samples of PURs with different weight percent (α) of PEDA (α = 0, 3, 5, 7, and 10 wt%), were obtained. The rheological properties, thermal stability, and mechanical properties of the samples were investigated. The results showed that the melt viscosity (η) and the storage shear modulus of the samples increase with the increase in α, while the thermal stability changes little. The bonding strength of the samples after 10 min, 30 min, and 48 h was assessed by 180° peel tests of Fabric 6535/adhesives/Fabric 6535 stacks. The results showed that the green strength after 30 min increases with the increase in α when α is not higher than 7 wt%. 相似文献
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湿固化聚氨酯热熔胶研究进展 总被引:4,自引:0,他引:4
概述了目前反应型湿固化聚氨酯热熔胶的应用和研究方向,介绍了改善热熔胶的初粘强度、韧性、耐热性等性能的方法,以及国内外在聚氨酯预聚体、增韧树脂、增粘树脂、催化剂、添加剂等方面取得的一些研究进展。 相似文献
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一种新的热熔型亚胺胶粘剂的研制 总被引:2,自引:0,他引:2
介绍一种以热塑性聚醚酰亚胺 (PEI)来改性双马来酰亚胺 (BMI)树脂 ,制成无溶剂的热熔型胶粘剂 ,其室温拉伸剪切强度≥ 11MPa ,2 2 0℃时≥ 14MPa,是一种新型的耐热胶粘剂 相似文献
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SIS、SEBS产品及其在热熔胶中的应用 总被引:1,自引:0,他引:1
介绍了SIS、SEBS产品的性能及其热熔胶应用特点,研究了增粘树脂、增塑剂及其对SIS热熔压敏胶性能的影响,以及蜡对SIS、SEBS热熔胶的影响,提供了SIS、SEBS热熔(压敏)胶的基础性配方。 相似文献
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Xuming Chen Hua Zhong Lanqin Jia Jiacheng Ling Ruiguo Tang Jinliang Qiao Zhongyue Zhang 《应用聚合物科学杂志》2001,81(11):2696-2701
Polyesteramides, with different inherent viscosities, were synthesized from dimer acid, sebacic acid, ethylenediamine, and diethylene glycolamine. The effect of inherent viscosity of the polyesteramides on their thermal properties, such as melt viscosity, softening point, heat of fusion, glass‐transition temperature, and low‐temperature flexibility, was studied. The effect of the inherent viscosity on mechanical properties, such as tensile strength, elongation at break, and hardness, and on adhesion properties, such as lap shear strength and T‐peel strength, was also investigated. The results show that melt viscosity, tensile strength, and elongation at break increase as the inherent viscosity increases, and that lap shear strength of the polyesteramides also increases with increasing inherent viscosity, whereas softening point, glass‐transition temperature, and shore D hardness of the polyesteramides essentially do not change as the inherent viscosity increases within a certain range. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 81: 2696–2701, 2001 相似文献
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以己二酸系聚酯二醇为软段,二异氰酸酯与扩链剂生成的链段为硬段,制备了聚氨酯热熔胶;研究了软硬段组成、结构、相对分子质量、扩链剂、异氰酸酯指数等对聚氨酯热熔胶的力学性能、结晶性能、粘接性能及耐热性能的影响。 相似文献