共查询到20条相似文献,搜索用时 109 毫秒
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通过对涂装密封胶胶泡的产生和形成原理进行研究,并与焊装折边胶工艺进行对比,分析总结出涂装密封胶的改善思路与方法。 相似文献
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中国科学院化学所研制、开发了汽车用折边胶粘剂KH-9520,已在上海大众汽车公司作为小轿车的车门及箱盖钢板折边胶使用,完全取代了进口胶粘剂。 相似文献
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聚氨酯胶粘剂在苯板夹心板生产中的应用 总被引:2,自引:0,他引:2
简要介绍了聚氨酯胶粘剂在彩钢板/聚苯乙烯夹心板生产中的应用、采用双组分无溶剂发泡型聚氨酯胶粘剂生产夹心板的工艺。对胶粘剂配制中原料的选择和工艺参数的确定进行了讨论。采用由聚醚、水、催化剂等配成的混合物为A组分,多异氰酸酯作为B组分,制成的发泡型聚氨酯胶粘剂具有固化速度快、成本低、实用效果好等优点,滴胶和抹胶的施工方法工艺简单,可满足夹心板生产的需要。 相似文献
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详细地阐述了软木制品用单组分聚氨酯胶黏剂的制备工艺和反应过程中的影响因素。研究了聚醚多元醇的种类和相对分子质量、原材料中的水分含量、胶黏剂中NCO含量和反应条件等对单组分聚氨酯胶黏剂性能的影响,并确定了较佳工艺条件。 相似文献
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A pressure-sensitive adhesive sheet is a special kind of paper used in non-impact printers which use a heating process to apply toner to paper. As a result, it needs special characteristics that general pressure-sensitive adhesive paper for labels do not require.
One of these characteristics is that the edge of the folded paper used in non-impact printers must not incline after printing. This was done by making the degree of orientation of the fibers in the face stocks and the release liners low.
The other characteristics are that adhesive must not ooze out from the edges during the slitting or guillotining process and that the labels must not come off of the release liner by themselves during the printing process. Ooze characteristics were found to be related to the adhesive coat weight. An adhesive paper with both a high peel strength and lower adhesive coat weight was developed by studying the dynamic viscoelastic properties of adhesives and release layers. The storage modulus of the release layer concerned with the release force was also found to be related to the self-peeling tendency of the labels.
These points were considered during the development of pressure-sensitive adhesive paper used in non-impact printers which use a heating process to apply toner to paper. 相似文献
One of these characteristics is that the edge of the folded paper used in non-impact printers must not incline after printing. This was done by making the degree of orientation of the fibers in the face stocks and the release liners low.
The other characteristics are that adhesive must not ooze out from the edges during the slitting or guillotining process and that the labels must not come off of the release liner by themselves during the printing process. Ooze characteristics were found to be related to the adhesive coat weight. An adhesive paper with both a high peel strength and lower adhesive coat weight was developed by studying the dynamic viscoelastic properties of adhesives and release layers. The storage modulus of the release layer concerned with the release force was also found to be related to the self-peeling tendency of the labels.
These points were considered during the development of pressure-sensitive adhesive paper used in non-impact printers which use a heating process to apply toner to paper. 相似文献
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