文章摘要
周 庆,郭佳能,张京京,张雷娜,吕建平.交联-接枝双重改性淀粉基木材胶黏剂的合成研究[J].包装工程,2011,32(11):17-20,51.
ZHOU Qing,GUO Jia-neng,ZHANG Jing-jing,ZHANG Lei-na,LV Jian-ping.Study on Synthesis of Crosslink and Graft Double-modified Wood Adhesives Based on Starch[J].Packaging Engineering,2011,32(11):17-20,51.
交联-接枝双重改性淀粉基木材胶黏剂的合成研究
Study on Synthesis of Crosslink and Graft Double-modified Wood Adhesives Based on Starch
投稿时间:2011-04-01  修订日期:2011-06-10
DOI:
中文关键词: 淀粉  木材胶黏剂  改性  环氧氯丙烷  丙烯酸乙酯
英文关键词: starch  wood adhesive  modification  epichlorohydrin  ethyl-acrylate
基金项目:合肥工业大学校级大学生创新性实验计划(cxsy102146)
作者单位
周 庆 合肥工业大学 合肥 230009 
郭佳能 合肥工业大学 合肥 230009 
张京京 合肥工业大学 合肥 230009 
张雷娜 合肥工业大学 合肥 230009 
吕建平 合肥工业大学 合肥 230009 
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中文摘要:
      以氧化淀粉为起始原料,环氧氯丙烷和丙烯酸乙酯(EA)为改性剂,制得了交联-接枝双重改性淀粉基木材胶黏剂。实验结果表明,较好的交联改性条件为:环氧氯丙烷质量分数为4.0 %(相对于淀粉质量),氧化淀粉采用3∶2分步加料方式。正交试验得到的接枝改性条件为:过硫酸铵质量分数为0.2%,丙烯酸乙酯(EA)为10.0%,反应时间3 h,反应温度70 ℃。经过双重改性后,淀粉基木材胶黏剂的胶合强度(7.5 MPa)、耐水时间(48 h)和存储期(200 d)等指标可以达到GB/T 9846-2004标准要求。
英文摘要:
      Wood adhesives were prepared by crosslink and graft modification method with starch as raw materials, epichlorohydrin and ethyl-acrylate as chemical modifying agents respectively. Experiment results showed that the proper amount of epichlorohydrin was 4.0 wt%, and 60% starch should be put into reactor at starting and another 40% at interval of 2 h in the process of cross-linking. The optimum graft conditions determined by orthogonal design were as follows: ammonium persulfate 0.2wt%, ethyl-acrylate 10.0 wt%, reaction time 3h, reaction temperature 70 ℃. The wood adhesives has high bond strength(7.5 MPa), good water-resistance(48 h), stable storage stability(200 d), which can meet the requirement of national standard GB/T 9846-2004.
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