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单组分聚醋酸乙烯D3级木工胶的研究
引用本文:陈耀,张银钟,胡孝勇. 单组分聚醋酸乙烯D3级木工胶的研究[J]. 中国胶粘剂, 2012, 0(1): 45-48
作者姓名:陈耀  张银钟  胡孝勇
作者单位:广西工学院生物与化学工程系
摘    要:以乙二醛改性PVA(聚乙烯醇)为保护胶体、VAE(乙烯-醋酸乙烯共聚物)乳液为种子乳液和VoeVa10(叔碳酸乙烯酯)为共聚单体,采用种子乳液聚合法和酮肼(DAAM/ADH)交联体系合成了改性PVAc(聚醋酸乙烯)胶粘剂。研究结果表明:当乙二醛改性PVA的缩醛度为15%、m(VoeVa10)∶m(VAc)=10∶100、w(VAE)=10%(相对于乳液总质量而言)和m(ADH)∶m(DAAM)=(0.5~1.5)∶1时,制成的单组分环保型改性PVAc乳液胶粘剂具有良好的耐水性和粘接强度,完全满足欧洲DIN EN 204—1991 D3级木工胶的标准要求。

关 键 词:单组分  聚醋酸乙烯  D3级木工胶  乙二醛  酮肼交联体系  叔碳酸乙烯酯

Study on one-component polyvinyl acetate D3-level adhesive for wood
Chen Yao,Zhang Yinzhong,Hu Xiaoyong. Study on one-component polyvinyl acetate D3-level adhesive for wood[J]. China Adhesives, 2012, 0(1): 45-48
Authors:Chen Yao  Zhang Yinzhong  Hu Xiaoyong
Affiliation:(Department of Biological and Chemical Engineering,Guangxi University of Technology,Liuzhou 545006,China)
Abstract:With PVA(polyvinyl alcohol) modified by glyoxal as protective colloid,VAE(ethylene-vinyl acetate copolymer) emulsion as seed emulsion,and VoeVa10(vinyl versatate) as comonomer,a modified PVAc(polyvinyl acetate) adhesive was made by seed emulsion polymerization and ketone hydrazine(DAAM/ADH) crosslinker system.The research results showed that the environment-friendly modified PVAc emulsion adhesive with one-component had good water resistance and bonding strength,and could fully meet European standard requirements of DIN EN 204—1991 D3-level adhesive for wood when the acetal degree of PVA modified by glyoxal was 15%,mass ratios of m(VoeVa10)∶m(VAc) and m(ADH)∶m(DAAM) were 10∶100 and(0.5-1.5)∶1 respectively,mass fraction of VAE was 10% in total emulsion.
Keywords:one-component  polyvinyl acetate(PVAc)  D3-level adhesive for wood  glyoxal  ketone hydrazine crosslinker system  vinyl versatate
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