公开(公告)号：KR1020130103154A

公开(公告)日：2013-09-23

申请号：KR1020120024561

申请日：2012-03-09

Applicant: 충남대학교산학협력단

Inventor： 김형일 ,  김효철 ,  장우경 ,  한성옥

IPC: C08L23/12 ,  C08L67/04 ,  C08K3/04 ,  C08K7/02

CPC classification number: C08L23/12 ,  B29C47/00 ,  C08K3/042 ,  C08K7/02 ,  C08K2201/004 ,  C08L23/26 ,  C08L67/04 ,  C08L2666/06

Abstract: PURPOSE: A polypropylene-polylactic acid mixed resin/graphene/natural fiber bionanocomposite is provided to remarkably improve mechanical properties such as tensile strength, flexural strength, and impact strength by uniformly dispersing graphene and natural fiber due to the addition of a compatibilizer. CONSTITUTION: A bionanocomposite includes a polypropylene-polylactic acid mixed resin, a compatibilizer, graphene, and natural fiber. The propylene is selected from a propylene homopolymer, the copolymer of a (C2-18)α-olefin and propylene, or a mixture thereof. The polylactic acid one or more selected from poly-L-lactic acid, poly-D-lactic acid, or poly-L,D-lactic acid each of which number average molecular weight is 10,000-100,000. The compatibilizer is maleic anhydride-grafted-polypropylene. The amount of the maleic anhydride included is 0.1-5.0 wt% with regard to the compatibilizer.

Abstract translation: 目的：提供聚丙烯 - 聚乳酸混合树脂/石墨烯/天然纤维复合材料，通过添加增容剂，均匀分散石墨烯和天然纤维，显着提高拉伸强度，抗弯强度和冲击强度等机械性能。 构成：生物聚合物包括聚丙烯 - 聚乳酸混合树脂，增容剂，石墨烯和天然纤维。 丙烯选自丙烯均聚物，（C2-18）α-烯烃和丙烯的共聚物或其混合物。 选自数均分子量为10,000〜10000的聚-L-乳酸，聚-D-乳酸或聚-L，D-乳酸中的一种以上的聚乳酸。 增容剂是马来酸酐接枝聚丙烯。 所涉及的马来酸酐的量相对于增容剂为0.1-5.0重量％。