贵州科学
貴州科學
귀주과학
GUIZHOU SCIENCE
2012年
6期
1-5
,共5页
微波辐照%PP%纳米TiO2%增塑机理
微波輻照%PP%納米TiO2%增塑機理
미파복조%PP%납미TiO2%증소궤리
microwave irradiation%polypropylene%nano-TiO2%plastic mechanism
采用熔融挤出法制备PP／TiO2复合材料，通过对比辐照前后断裂伸长率、屈服强度、抗拉强度。加之SEM、TEM以及FIR测试分析，结果表明：一方面微波辐照使得分子链中的基团振动，摩擦生热导致复合材料产生降解，另一方面微波辐照改善了无机刚粒子的分散性和复合材料两相相容性及界面结合。
採用鎔融擠齣法製備PP／TiO2複閤材料，通過對比輻照前後斷裂伸長率、屈服彊度、抗拉彊度。加之SEM、TEM以及FIR測試分析，結果錶明：一方麵微波輻照使得分子鏈中的基糰振動，摩抆生熱導緻複閤材料產生降解，另一方麵微波輻照改善瞭無機剛粒子的分散性和複閤材料兩相相容性及界麵結閤。
채용용융제출법제비PP／TiO2복합재료，통과대비복조전후단렬신장솔、굴복강도、항랍강도。가지SEM、TEM이급FIR측시분석，결과표명：일방면미파복조사득분자련중적기단진동，마찰생열도치복합재료산생강해，령일방면미파복조개선료무궤강입자적분산성화복합재료량상상용성급계면결합。
PP/nano-TiO2 composites were prepared by melt extrusion, the results showed that microwave irradia- tion made the group of molecular chain vibrate and heat from friction produces made composites degrade; on the other hand microwave irradiation improves the distribution of inorganic particle in matrix and the two phases com- patibility and the interface combination of composites, by of means comparing the elongation at break, yield strength and tensile strength before and after microwave irradiation, in addition to test and analysis of SEM,TEM and FIR.
