Fracture behaviors of PP/mPE thermoplastic vulcanizate via peroxide crosslinking

文化大學機構典藏 CCUR > 理工學院 > 工學院 > 化學工程與材料工程學系暨碩士班 > 期刊論文 > Item 987654321/2381

jsp.display-item.identifier=請使用永久網址來引用或連結此文件: https://irlib.pccu.edu.tw/handle/987654321/2381

题名:	Fracture behaviors of PP/mPE thermoplastic vulcanizate via peroxide crosslinking
作者:	Lai, S.M.;Chiu, F.C.;Chiu, T.Y.
贡献者:	材料科學與奈米科技研究所
日期:	2005
上传时间:	2009-10-30 11:55:56 (UTC+8)
摘要:	Peroxide cured PP/metallocene polyethylene (mPE) to form a novel thermoplastic vulcanizate has been prepared. Metallocene polyethylenes with two different levels of comonomer contents were chosen for the investigation. The mixing of mPE (40 wt%) and PP (60 wt%) containing various dosages of peroxide was performed to activate dynamic cure using an internal mixer. Thermal behaviors remain largely unchanged for PP, indicating the dominant effect of cured mPE domains on mechanical properties for the vulcanizates. Tensile strength decreases at first with increasing the levels of peroxide concentrations yet increases again at higher level of peroxide concentrations at all test temperatures. Tear strength generally decreases with reduced energy dissipation and tends to level off at higher degree of cure. The values of cutting strength are comparable with the results for different types of materials and are generally two orders of magnitude smaller than the results from tear measurements. Strength of materials was clearly dominated by the crystalline yielding effect than viscoelastic effect, even in this nano-fracture zone of deformation in the cutting measurement. Morphological observations were also elucidated as well. (c) 2005 Elsevier Ltd. All rights reserved.
關聯:	EUROPEAN POLYMER JOURNAL v.41 n.12 Pages: 3031-3041
显示于类别:	[化學工程與材料工程學系暨碩士班] 期刊論文

文件中的档案:

档案	描述	大小	格式	浏览次数
index.html		0Kb	Text	1767	检视/开启

在CCUR中所有的数据项都受到原著作权保护.

数据加载中.....