Effect of particle size and surface modification on mechanical properties of poly(para-dioxanone)/inorganic particles

被引：9
|
作者：
Bai, Yang [1 ]
Ma, Chi [2 ]
Wang, Pingquan [1 ]
Fan, Zhou [1 ]
Bai, Wei [1 ,2 ,3 ]
Xiong, Chengdong [2 ]
Tang, Congming [3 ]
机构：
[1] SW Petr Univ, State Key Lab Oil & Gas Reservoir Geol & Exploita, Chengdu 610500, Peoples R China
[2] Chinese Acad Sci, Chengdu Inst Organ Chem, Chengdu 610041, Peoples R China
[3] China W Normal Univ, Coll Chem & Chem Engn, Chem Synth & Pollut Control Key Lab Sichuan Prov, Nanchong 637009, Peoples R China
来源：
POLYMER COMPOSITES | 2012年 / 33卷 / 10期
基金：
中国科学院西部之光基金; 中国国家自然科学基金;
关键词：
VITRO HYDROLYTIC DEGRADATION; COMPOSITES; POLY(P-DIOXANONE); CRYSTALLIZATION; POLY(L-LACTIDE); HYDROXYAPATITE; NANOCOMPOSITES; NUCLEATION; MORPHOLOGY; BEHAVIOR;
D O I：
10.1002/pc.22303
中图分类号：
TB33 [复合材料];
学科分类号：
摘要：
Poly(para-dioxanone) (PPDO)-based composites have been prepared by blending PPDO with three different types of CaCO3 particles, CC1 (nano-CaCO3), CC2 (CaCO3 whisker), and CC3 (silane-coated CaCO3 whisker). The effects of particles size, interface adhesion, and crystallinity of composites on mechanical properties were discovered through analysis of the morphology of fracture surfaces, thermal characteristics, and crystalline structure. DSC revealed that the CaCO3 particles acted as a nucleating agent and promoted crystallinity of PPDO. The effect of CaCO3 particles on crystallization of PPDO was clearly revealed by using the nucleating efficiency. Smaller size particles exhibit greater nucleating efficiency. Adhesion between PPDO and the CaCO3 particles plays major roles on the mechanical properties of composites. The tensile strength of PPDO was improved over 54%. POLYM. COMPOS., 2012. (c) 2012 Society of Plastics Engineers
引用
收藏
页码：1700 / 1706
页数：7
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