Adhesion Control for Injection Overmolding of Polypropylene With Elastomeric Ethylene Copolymers

被引：25

作者：

Dondero, Marco ^{[1
]}

Pastor, Jose M. ^{[2
,3
]}

Carella, Jose M. ^{[1
]}

Perez, Claudio J. ^{[1
]}

机构：

[1] UNMdP, Res Inst Mat Sci & Technol INTEMA, RA-7600 Mar Del Plata, Buenos Aires, Argentina

[2] Fdn Res & Dev Transport & Energy, CDAUT, Valladolid 47151, Spain

[3] Univ Valladolid, ETSII, Dept Fis Mat Condensada, E-47011 Valladolid, Spain

来源：

POLYMER ENGINEERING AND SCIENCE | 2009年 / 49卷 / 10期

关键词：

STRUCTURAL-PROPERTIES; OCTENE COPOLYMERS; THERMODYNAMICS; POLYMERS; BLENDS;

D O I：

10.1002/pen.21415

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Two types of random semicrystalline copolymers (ethylene-octene and ethylene-butene) were overmolded on a core polypropylene. Maximum solid-liquid interface temperature achieved for the overmolding injection process is used as the key parameter for adhesion control. The main bonding process is shown to be a Rouse-type fingering mechanism that develops in short time scales. Normalized peel tests were conducted on overmolded samples to measure the resulting polypropylene copolymers' bonding strength. All the ethylene random copolymers used for this study give good adhesion to polypropylene in overmolding processes, provided the right range of interface temperature is reached. Adhesion strength can be easily controlled for efficient debonding and recycling of used overmolded parts. POLYM. ENG. SCI., 49:1886-1893, 2009. (C) 2009 Society of Plastics Engineers

引用

页码：1886 / 1893

页数：8

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