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一、前言沾水胶带是一种新型压敏胶带,在干燥状态下不具粘附性,但在与湿的基材接触或经水润湿后即刻产生粘接力。这种胶带是由水再生粘性的胶粘剂涂布于基材上干燥而成。它与通用的橡胶型压敏胶带相比有如下优点:(1)橡胶型胶粘剂常用汽油为溶剂,易燃不安全。沾水胶带的的胶粘剂则以水为溶剂,安全易得。(2)橡胶型胶带必须在基材上涂隔离剂,便于解卷。而沾水胶带干燥后不具粘性易于解卷,不必在基材上涂隔离剂。(3)水再生粘性胶粘剂较橡胶型压敏胶粘剂的原料易得,成本较低, 相似文献
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溶剂型和水乳液型丙烯酸酯压敏胶在医用胶带生产中的应用 总被引:1,自引:1,他引:0
介绍了溶剂型丙烯酸酯压敏胶和水乳液型丙烯酸酯压敏胶在医用胶带生产中的使用情况,对二者的性能、涂布工艺条件和制成医用胶带的产品性能进行了比较。 相似文献
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一、前言 压敏胶粘制品主要用于包装行业,如生产OPP封箱胶带、牛皮纸胶带等。随着我国经济的发展,近几年压敏胶粘制品的产量增长很快。据统计,我国压敏胶带的产量1989年是2.2亿m~2,1991年为8亿m~2,1992年达到15亿m~2。早期的压敏胶粘剂以橡胶溶剂型为主,具有易燃易爆,污染环境,成本高 相似文献
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丙烯酸酯压敏胶粘剂的发展 总被引:4,自引:0,他引:4
压敏胶粘剂中最为重要的则是橡胶系和丙烯酸酯系压敏胶粘剂,而丙烯酸酯系压敏胶粘剂由于具有较橡胶系压敏胶粘剂更为优异的综合性能,成为目前最重要的一类压敏胶粘剂,其形态分为溶剂型、乳液型、热熔型、反应性液体固化型四大类。我国压敏胶粘剂工业的发展也是随着丙烯酸酯单体及共聚合物的生产的发展而发展起来的。1986年我国压敏胶带的产量为0.6亿平方米,1992年增长为匕亿平方米,高于1992年日本压敏胶带的产量11.9亿平方米,这些胶带大多是以丙烯酸酯压敏胶粘剂涂布而成的。丙烯酸酯压敏胶粘剂经近二、三十年的迅速发展,其制造技… 相似文献
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叙述了制造有色压敏胶带时,所需色浆的制备方法,按色浆配方,色浆调色和色浆的研磨分别进行了介绍,给出了一个黄青色色浆的配方实例,并且从涂布后胶带的色泽和遮盖力两方面讨论了色浆质量的判别,介绍了判断胶带遮盖力的简易迭层法。 相似文献
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分析了传统的压敏胶带肃离应力理论模型建立中的推导过程,指出这些模型建立过程中存在着明显的不足之处,给出了压敏胶带肃离应力分布的粘弹性力学模型。 相似文献
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我国鞋用胶粘剂的市场与展望 总被引:1,自引:0,他引:1
邓启明 《精细与专用化学品》2001,9(21):8-10
目前,我国年产鞋量为60亿双,随着经济的增长,在加入WTO后,我国年产鞋量可稳定在70亿~80亿双。溶剂胶制造简单、使用方便、粘合力强,是广泛使用的大底胶,但环境污染严重,即将面临着被环保型胶取代的局面;具有环保性的热熔胶可用于绷帮、涂包头、鞋帮部件抿边、粘衬里、包鞋跟和面料复合,但用它来粘大底,还满足不了穿着的要求,须从增强分子间作用力和快速渗透功能两方面改进;水基胶尽管还存在粘合强度不高、水分蒸发慢等不足,但由于是目前污染最少的胶种而倍受关注;无溶剂胶省去了聚合、溶解、挥发干燥等诸多程序,同样也具有广阔的发展前景。 相似文献
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Recent adhesive technologies have focused on the development of high-quality and eco-friendly adhesives. Thus, there is a gradual shift from the currently used chemical-based adhesives toward harmless adhesives with improved quality and performance. Here, we evaluated the potential use of bacteria-produced recombinant mussel adhesive protein (MAP) as a harmless wood furniture adhesive. We formulated a MAP wood adhesive as an inclusion body type for economical preparation, and we confirmed its harmlessness through the non-detection of volatile organic compounds and heavy metals. The formulated MAP showed sufficiently strong bulk adhesive strength for the dried gluing of wood adherends. We also found that the formulated MAP wood adhesive exhibits robust adhesion in various environmental conditions, including open assembly times, incubation times, temperatures, and humidity levels. In summary, the developed recombinant MAP could be successfully used as a promising environmentally-friendly, harmless wood furniture adhesive. 相似文献
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近年来建筑结构胶粘剂的研究及应用 总被引:8,自引:0,他引:8
叙述了建筑结构胶的发展简史,介绍了近年来国内各类建筑结构胶研究开发情况,并就该胶应用研究中所获得的成果作了说明,例举了某些典型应用实例,关于今后的发展也提出了意见。 相似文献
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Anna Rudawska Elżbieta Bociąga Ewa Olewnik-Kruszkowska 《Journal of Adhesion Science and Technology》2013,27(3):327-344
The paper presents selected aspects of the effect of primers on adhesive properties and strength of aluminium sheet adhesive joints, made using polyurethane adhesives. The strength of adhesive joints was determined based on two cure time variants: 15 and 64 h. It was found that the longer cure time at a humidity of 33% is more desired, as it leads to a substantial increase in strength of the tested adhesive joints. In addition, two variants of surface preparation were applied: degreasing and degreasing followed by the application of a primer (a pro-adhesive agent). It was observed that the primer application prior to the application of an adhesive leads to a significant increase in strength compared to the variant where the adhesive application is preceded only by degreasing. Moreover, the aluminium sheet surface that was subjected to cataphoretic painting and priming exhibits better adhesive properties. It has a higher value of both surface free energy and its dispersion and polar components compared to the surface that was only subjected to degreasing. 相似文献