| 交联-接枝双重改性淀粉基木材胶黏剂的合成研究 |
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| 引用本文： | 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. |
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| 作者姓名： | 周 庆 郭佳能 张京京 张雷娜 吕建平 |
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| 作者单位： | 合肥工业大学,合肥,230009;合肥工业大学,合肥,230009;合肥工业大学,合肥,230009;合肥工业大学,合肥,230009;合肥工业大学,合肥,230009 |
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| 基金项目： | 合肥工业大学校级大学生创新性实验计划(cxsy102146) |
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| 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。
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| 关 键 词： | 淀粉 木材胶黏剂 改性 环氧氯丙烷 丙烯酸乙酯 |
| 收稿时间： | 4/1/2011 12:00:00 AM |
| 修稿时间： | 2011/6/10 0:00:00 |
Study on Synthesis of Crosslink and Graft Double-modified Wood Adhesives Based on Starch |
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| ZHOU Qing,GUO Jia-neng,ZHANG Jing-jing,ZHANG Lei-na and 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. |
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| Authors: | ZHOU Qing GUO Jia-neng ZHANG Jing-jing ZHANG Lei-na and LV Jian-ping |
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| Affiliation: | ZHOU Qing,GUO Jia-neng,ZHANG Jing-jing,ZHANG Lei-na,LV Jian-ping(Hefei University of Technology,Hefei 230009,China) |
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| Abstract: | 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%,reac... |
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| Keywords: | starch wood adhesive modification epichlorohydrin ethyl-acrylate |
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