| 聚乳酸溶液接枝丙烯酸及与淀粉共混研究 |
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| 引用本文： | 高晓丽,寇志敏,彭少贤,崔杨,池彩云.聚乳酸溶液接枝丙烯酸及与淀粉共混研究[J].塑料助剂,2009(3):32-36. |
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| 作者姓名： | 高晓丽 寇志敏 彭少贤 崔杨 池彩云 |
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| 作者单位： | 湖北工业大学化学与环境工程学院,武汉,430068 |
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| 摘 要： | 通过溶液聚合法,合成了聚乳酸（PLA）与丙烯酸（AA）的接枝共聚物PLA-g-AA,用以改善PLA与淀粉熔融共混物的相容性。研究了不同的接枝工艺条件对共聚物接枝率的影响,并考察了接枝聚乳酸与淀粉共混物的力学性能和结晶性。结果表明,最佳工艺条件是淀粉含量70%、接枝物含量15%、反应温度170℃、反应时间10min。在此条件下共混物的拉伸强度可达到27.35MPa,弹性模量728.22MPa,断裂伸长率达到3.59%。
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| 关 键 词： | 淀粉 聚乳酸 接枝 丙烯酸 |
Study on Solution Grafting Acrylic Acid onto Poly (Iactic acid) and its Blending with Strach |
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| Gao Xiao-li,Kou Zhi-min,Peng Shao-xian,Cui Yang,Chi Cai-yun.Study on Solution Grafting Acrylic Acid onto Poly (Iactic acid) and its Blending with Strach[J].Plastic Additives,2009(3):32-36. |
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| Authors: | Gao Xiao-li Kou Zhi-min Peng Shao-xian Cui Yang Chi Cai-yun |
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| Affiliation: | Gao Xiao-li Kou Zhi-min Peng Shao-xian Cui Yang Chi Cai-yun (College of Chemical and Environmental Engineering, Hubei University of Technology, Wuhan, 430068) |
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| Abstract: | The solution polymerization for Acrylic Acid （AA） onto Poly （lactic acid） （PLA） was studied, and the effect of different factors on the grafting degree was investigated. The properties of a PLA and starch composite （PLA/Starch） and a AA grafted PLA and Starch composite （PLA-g-AA/Starch） were also compared. The results showed that the proper technological condition is Starch-plastic with 70% starch content and 15% graft polymer content and 170 ~C reaction temperature and 10 min reaction time. The Tensile strength can reach 27.35 Mpa, a Young＇s modulus is 728.22 MPa, and entensibility of fracture can reach 3.59%. |
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| Keywords: | starch poly（lactic acid） grafting acrylic acid |
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