Mechanical properties and crystallization of Poly(L-lactide) films with several percents of ACR nanoparticles
Mechanical properties and crystallization of Poly(L-lactide) films with several percents of ACR nanoparticles
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含有百分之几 ACR 纳米颗粒的聚（L-丙交酯）薄膜的机械性能和结晶
DOI：
10.1016/j.matlet.2012.06.001
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发表时间：
2012-09
影响因子：
3
通讯作者：
Lin, Runxiong
中科院分区：
文献类型：
--
作者：
Wu, Ningjing;Ding, Meichun;Zhang, Jianming;Lin, Runxiong
通过力学性能测试表明，与纯PLLA膜相比，加入少量丙烯酸酯橡胶（ACR）纳米粒子改性的PLLA膜的断裂伸长率和拉伸强度明显提高。采用差示扫描量热法（DSC）和广角X射线衍射（WAXD）对改性PLLA共混膜的结晶行为进行表征，发现少量ACR纳米粒子的加入提高了PLLA的结晶度。结果表明，ACR纳米粒子不仅对PLLA薄膜起到了增韧剂的作用，而且作为成核剂提高了PLLA的结晶度，从而有助于提高PLLA薄膜的拉伸强度和模量。
The mechanical properties measurement of Poly(L-lactide) (PLLA) films modified by adding just several percents of acrylic rubber (ACR) nanoparticles showed that the elongation at break and tensile strength increased obviously by comparing with neat PLLA film. The crystallization behavior of modified PLLA blend films was characterized by Differential Scanning Calorimetry (DSC) and Wide-angle X-ray diffraction (WAXD); it was found that the crystallization degree of PLLA was improved with small amount of ACR nanoparticles. The results indicate that ACR nanoparticles not only take the role of the toughening agents for PLLA films, but also increase the crystallization degree of PLLA as nucleation agents, which contribute to the enhancement of the tensile strength and modulus of PLLA films.
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影响因子：
56.9
作者：
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通讯作者：
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