A series of sealants were prepared by adding plasticizer,nanometer calcium carbonate and other auxiliary additives based on silane terminated polyether(PE) with a certain molecular weight.The results showed that silane terminated PE with different molecular weight had an effect on the tensile strength of sealant.The type and proportion of nanometer calcium carbonate had obvious effect on the elongation of sealant.The water removal agent played a key role in the storage stability of sealant.Using Zhejiang Huangma 03 series silane terminated PE as base adhesive,PPG2000 as plasticizer,nanometer calcium carbonate (heavy active calcium carbonate and nanometer active calcium carbonate mixed in proportion) as filler,water removal agent,coupling agent and catalyst as raw materials,the sealant obtained had excellent comprehensive performance.
Liu Jia, Dong Nan, Du Mingqiang, Qin Pengfei
. Study on preparation and property of silane terminated PE sealant[J]. New Chemical Materials, 2020
, 48(9)
: 155
-158
.
DOI: 10.19817/j.cnki.issn 1006-3536.2020.09.034
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