Country for PR: Japan
Contributor: Kyodo News JBN
Wednesday, May 16 2018 - 15:00
Polyplastics Develops Metal-Resin Bonding Technology for Automotive and Electrical/Electronics Parts
TOKYO, May 16, 2018 /Kyodo JBN--AsiaNet/ --

Polyplastics Co., Ltd., a leading global supplier of engineering 
thermoplastics, has developed an innovative technology that improves 
metal-resin bonding of composite parts for the automotive and 
electrical/electronics industries.


Direct metal-resin bonding is a process which uses metal insert molding. Metal 
parts and resins are firmly bonded by introducing molten resin through 
injection molding to metal parts which have already undergone sufficient 
surface treatment. Metal-resin composites deliver the properties of metals 
(high rigidity, electrical conductivity) and engineering plastics (low density, 
electrical insulation). However, while many factors (metal parts, resins, mold 
structures, injection molding conditions) have had an adverse effect and 
prevent stable bonding, Polyplastics has made progress with successful bonding. 

For metal surface treatments, Polyplastics' Quick-10 (R) technology uses quick 
heating and cooling of inserted metals to produce direct metal-resin bonding 
with metal insert molding alone, without any special surface treatments for the 
metal side. Resins must exhibit properties such as interface infinity, surface 
transferability (flowability), and low shrinkage to produce good bonding.

A key resin component is an affinity improvement additive that gives the 
metal-resin interface improved compatibility and promotes maximum adhesion to 
the metal surface. Polypalstics' metal adhesion grades include 1135MF1 and 
940MA for PPS and PBT respectively. Other metal adhesion grades, 1150MF1 and 
930MA, provide added functionality.

Polyplastics notes that mold temperature can have a strong effect on bonding. 
The company has devised optimum molding conditions to achieve good surface 
transferability and low mold shrinkage with a linear expansion rate close to 
that of metal.

Metal-resin bonding technology has been used in mobile device parts (mobile 
phones, tablets, digital cameras) and some auto-related parts.

For more information, visit

Quick-10 (R) is a registered trademark of Polyplastics Co., Ltd. in Japan.

About Polyplastics
Polyplastics Co., Ltd. is a global leader in the development and production of 
engineering thermoplastic solutions. The company's broad product portfolio 
includes POM, polybutylene terephthalate (PBT), polyphenylene sulfide (PPS), 
and liquid crystal polymer (LCP). The company has the largest global market 
share of POM. With more than 50 years of experience, the company is backed by a 
strong global network of R&D, production, and sales resources capable of 
creating advanced solutions for an ever-changing global marketplace. 

SOURCE: Polyplastics Co., Ltd.