Top Page | English | 简体中文 | 繁體中文 | 한국어 | 日本語
Monday, 5 August 2019, 15:00 HKT/SGT
Share:
    

Source: Showa Denko K.K.
SDK Develops Technology to Directly Join/Bond Aluminum Alloys and Polycarbonate Resin

TOKYO, Aug 5, 2019 - (JCN Newswire) - Showa Denko (SDK; TSE:4004) has developed an innovative technology to directly join/bond aluminum alloys and polycarbonate resin - a non-crystalline commodity engineering plastic - without using an adhesive.




It is common to join/bond aluminum alloys and polycarbonate resin through mechanical joining (using bolts, and the like) or adhesive bonding (using an adhesive). In recent years, much attention is focused on new technologies that directly join/bond resin materials - at the time of injection molding - to metallic materials. These new technologies are expected to simplify process, increase productivity, and enable processing into complicated shapes. In many cases, however, they depend on mechanical bonding power, such as an anchor effect resulting from injection of resin into roughened metal surface. Thus, it was believed that polycarbonate resin (and other non-crystalline engineering plastics) would not be suitable for joining/bonding metallic materials by conventional methods.

SDK has enabled such direct joining/bonding based on its expertise in aluminum alloys and polymer chemistry gained over many years. Specifically, SDK has developed an innovative joining/bonding technology based on special surface treatment and primer treatment for aluminum alloys, realizing chemical bonding power[1] in addition to the anchor effect. Our experiments show that the new technology can be used under ordinary polycarbonate molding conditions, providing sufficient bond strength of more than 25MPa (mega pascal)[2]. There is no need for special conditions or equipment in securing sufficient bond strength.

As this technology enables direct joining/bonding of commodity polycarbonate resin and light-weight aluminum, it is applicable to the housing of smartphones. SDK will continue development work to optimize its aluminum-surface-treatment technology and primer-coating conditions, thereby increasing bond strength and durability. In the future, SDK will aim to use the technology in the area of super-engineering plastics with higher heat resistance for automotive parts applications.

In its medium-term business plan "The TOP 2021," SDK is promoting cooperation among various business segments and strengthening marketing functions. The automobile and electronic device industries have an increasing need for diversified and sophisticated materials that are light in weight and with improved characteristics regarding heat dissipation, heat accumulation, and insulation. In view of such market needs, SDK is working to develop compound materials by combining its own diversified technologies. The development of the metal/resin direct joining/bonding technology announced today is one of the examples of such efforts. We will continue creating new solutions by deepening and combining technologies from our wide-ranging businesses and products.

Notes
[1] This technology employs "covalent bonding" as part of its bonding mechanism. "Covalent bonding" represents the strongest bonding power among various types of chemical bonding, and is considered to be about 100 times as powerful as intermolecular force.
[2] The numerical value of "25MPa" was obtained as a result of tension shear tests (ISO 19095).


About Showa Denko K.K.

Showa Denko K.K. (SDK; TSE:4004, ADR:SHWDY) is a major manufacturer of chemical products serving from heavy industry to computers and electronics. The Petrochemicals Sector provides cracker products such as ethylene and propylene, the Chemicals Sector provides industrial, high-performance and high-purity gases and chemicals for semicon and other industries, the Inorganics Sector provides ceramic products, such as alumina, abrasives, refractory/graphite electrodes and fine carbon products. The Aluminum Sector provides aluminum materials and high-value-added fabricated aluminum, the Electronics Sector provides HD media, compound semiconductors such as ultra high bright LEDs, and rare earth magnetic alloys, and the Advanced Battery Materials Department (ABM) provides lithium-ion battery components. For more information, please visit www.sdk.co.jp/english/.

Contact:
Showa Denko K.K., Public Relations Office, Tel: 81-3-5470-3235


Aug 5, 2019 15:00 HKT/SGT
Source: Showa Denko K.K.

Showa Denko K.K. (TSE: 4004)

Topic: Press release summary
Sectors: Chemicals, Nanotechnology
http://www.acnnewswire.com
From the Asia Corporate News Network


Copyright © 2020 ACN Newswire. All rights reserved. A division of Asia Corporate News Network.



Showa Denko K.K.
June 26, 2020 13:00 HKT/SGT
Showa Denko Group Recycles 4.43 Million Aluminum Cans in FY2019
June 23, 2020 15:00 HKT/SGT
SDK Subsidiary, Hitachi Chemical Changes Name
June 15, 2020 11:30 HKT/SGT
SDK Group Completes Expansion of Lines to Produce Vinyl Ester Resin and Synthetic Resin Emulsion in Shanghai
May 15, 2020 15:30 HKT/SGT
Showa Denko Announces 2020 First Quarter Financial Results
May 15, 2020 15:30 HKT/SGT
SDK Revises 2020 Consolidated Performance Forecast and Dividend Payment Forecast
Apr 21, 2020 15:00 HKT/SGT
Showa Denko Announces Results of Tender Offer for Shares in Hitachi Chemical Company, Ltd. (JP:4217) and Change in Subsidiary (a Second-tier Subsidiary Company)
Apr 21, 2020 15:00 HKT/SGT
Showa Denko Announces Fundraising, Capital Reduction of the Consolidated Subsidiary and Change in the Specified Subsidiary Company
Apr 13, 2020 14:00 HKT/SGT
Showa Denko, AIST, NEDO and ADMAT Prove AI Speeds up Development of Flexible Transparent Film
Apr 1, 2020 11:30 HKT/SGT
Outline of Showa Denko CEO Message to Newly-hired Employees
Mar 23, 2020 15:00 HKT/SGT
Showa Denko to Commence Tender Offer for Shares in Hitachi Chemical Company, Ltd. (JP:4217)
More news >>
 News Alerts
Copyright © 2020 ACN Newswire - Asia Corporate News Network
Home | About us | Services | Partners | Events | Login | Contact us | Privacy Policy | Terms of Use | RSS
US: +1 800 291 0906 | Beijing: +86 400 879 3881 | Hong Kong: +852 2217 2912 | Singapore: +65 6304 8926 | Tokyo: +81 3 6859 8575

Connect With us: