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集装箱用硅烷改性密封胶的性能研究

2021-04-27明安顺赵瑞王翠花冷金洲

粘接 2021年8期

明安顺 赵瑞 王翠花 冷金洲

摘 要:以硅烷改性聚醚树脂(MS)为主体材料,制备了一种适合集装箱用的硅烷改性密封胶。研究了不同封端基团的硅烷改性聚醚树脂和不同类型增塑剂以及不同类型硅烷偶联剂对集装箱用硅烷改性密封胶的固化速度,气味,力学性能以及环保性的影响。结果发现,三甲氧基封端的硅烷改性聚醚树脂固化速度快,消黏快,增塑剂的类型对集装箱用硅烷改性密封胶的气味以及环保性影响很大。不同种类的硅烷偶联剂赋予集装箱用硅烷改性密封胶不同的固化速度和力学性能。

关键词:集装箱;硅烷改性密封胶;环保性

中图分类号:TQ436+.6 文献标识码:A 文章编号:1001-5922(2021)08-0030-04

Study on Performance of Silane Modified Sealant for Container

Ming Anshun, Zhao Rui, Wang Cuihua, Leng Jinzhou

(Hubei Huitian New Materials Co.,Ltd., Xiangyang 441057, China)

Abstract:Using silane-modified polyether resin (MS) as the main material, a silane-modified sealant suitable for containers was prepared. The effects of silane-modified polyether resins with different end-capping groups, different types of plasticizers and different types of silane coupling agents on the curing speed, odor, mechanical properties and environmental protection of silane-modified sealants for containers were studied. It was found that the trimethoxy-terminated silane-modified polyether resin has a fast curing speed and fast debonding; the type of plasticizer has a great influence on the smell and environmental protection of the silane-modified sealant for containers. Different types of silane coupling agents give silane modified sealants for containers different curing speeds and mechanical properties.

Key words:container; silane modified sealant; environmental protection

隨着我国集装箱制造工业的高速发展,尤其是制造技术的高速发展,我国各大箱体制造公司也开始从高效、环保和安全提出技术需求。中国集装箱标准化技术委员会分别组织国内胶粘剂制造单位,逐步起草制定中国集装箱行业各类胶粘剂相关标准及环保性要求标准,对集装箱制造用胶的要求也越来越严格。

传统的硅橡胶、聚氨酯胶、丁基胶、氯丁胶已无法满足越来越严苛的性能及环保要求。在使用过程中存在各种各样的问题,如基材污染、环保性不达标,密封粘接效果不好等问题。

硅烷改性密封胶又称有机硅改性聚醚密封胶和端硅烷基聚醚密封胶,它是一种以端硅烷基聚醚(以聚醚为主链,两端用硅氧烷封端)为基础聚合物制备的高性能环保密封胶。……

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