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AC-MMA-AA-AN四元核壳共聚乳液黏合剂的研究    

Study on VAC-MMA-AA-AN Core shell Copolymer Emulsion Adhesive

文献类型:期刊文献

中文题名:AC-MMA-AA-AN四元核壳共聚乳液黏合剂的研究

英文题名:Study on VAC-MMA-AA-AN Core shell Copolymer Emulsion Adhesive

作者:刘德峥[1];张引沁[1];黄艳芹[1];韩相明[1];王培义[2]

第一作者:刘德峥

机构:[1]平原大学化工系;[2]郑州轻工业学院化工系

第一机构:新乡学院化学化工学院

年份:2000

卷号:17

期号:2

起止页码:76-78

中文期刊名:精细化工

外文期刊名:FINE CHEMICALS

收录:CSTPCD;;Scopus;北大核心:【北大核心1996】;CSCD:【CSCD2011_2012】;

语种:中文

中文关键词:聚醋酸乙烯乳液;核壳结构;乳液聚合;胶粘剂

外文关键词:polyvinyl acetate emulsion;core shell structure;water resistance;cold resistance;adhesive strength

摘要:通过保护胶体聚乙烯醇(PVA) 的改性和乳化剂的复配,用核壳乳液共聚法合成了具有核壳结构的黏合剂。经实验确定最佳的反应条件: n ( 醋酸乙烯)∶n ( 甲基丙烯酸甲酯)∶n ( 丙烯酸)∶n ( 丙烯腈) = 1∶0-26∶0-08∶0-21 ;胶核和外壳的反应温度分别为70 ℃和78 ℃,反应时间均为2 h 。所得产物在- 5 ~0 ℃时不冻结。用做木材黏合剂,在25 ℃时干态剪切强度为7-53MPa ,室温和100 ℃时用水浸泡不开胶时间达到91-5 d 和90-6 min。
By the modification of polyvinyl alcohol and by choosing the percentage and add on of emulsifier,adhesive was synthesized by means of core shell emulsion copolymerization.The optimum conditions of the reaction were determined:vinylacetate∶methyl methacrylate∶acrylic acid∶acrylonitrile=1∶0 26∶0 08∶0 21(molar ratio),the reaction temperatures of the core and the shell were 70 ℃ and 78 ℃ respectively,the time of both reactions was 2 h.The copolymer emulsion was ice free between -5 ℃ and 0 ℃.Used as wood adhesive,its dry shearing strength was 7 53 MPa at 25 ℃.Immersed in water at room temperature and at 100 ℃,it kept adhesion for 91 5 d and 90 6 min respectively.

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