Lanthanum containing polymer''s modification to PP
writer：Dai, SJ(*)，Zhang, M
keywords：organic polymer，rare earth polymer，acrylic lanthanum,modification
source：期刊
specific source：Journal of Rare Earths
Issue time：2004年
Polypropylene (PP) ''s low impact strength limits its usages. Adding some a rare
earth polymer can enhance PP''s tensile strength and impact strength. Acrylic
lanthanum was prepared by the reaction between lanthanum oxide and acrylic acid.
The IR spectrum prove that and optimum reacting conditions are that the bulk
ratio of La(AA)3 and MMA is not less than one and temperature is about 80℃.
Lanthanum containing Polymer were added into PP. When percent of addition only
was 3% , strength were enhanced 10% , and impact strength 40%. SEM shows the
compatibility of rare earth polymer and PP; lanthanum containing polymer can
form physical crosslinking between PP''s molecules, then every particle''s surface
connect with several PP molecules and the PP mechanical property were enhanced.