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Polyester elastomer hot melt adhesives and preparation method thereof for bonding polar polymers and metallic materials

A polyester elastomer and polar polymer technology, applied in the field of polyester elastomer hot melt adhesive and its preparation, can solve the problems of metal surface degumming, hot melt adhesive can not meet the needs of use, etc., to achieve high bonding strength , long-lasting and stable bonding, good water resistance

Inactive Publication Date: 2013-04-24
GUANGZHOU LUSHAN NEW MATERIALS +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Maleic anhydride grafted polyolefin has good adhesion to plastics and metals, but moisture in the environment can easily cause debonding of the metal surface
[0005] In summary, the performance of existing hot melt adhesives in bonding plastic and metal materials cannot meet the needs of use

Method used

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  • Polyester elastomer hot melt adhesives and preparation method thereof for bonding polar polymers and metallic materials
  • Polyester elastomer hot melt adhesives and preparation method thereof for bonding polar polymers and metallic materials
  • Polyester elastomer hot melt adhesives and preparation method thereof for bonding polar polymers and metallic materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 50% polyester elastomer with a melting point of 178°C (LG Chemical, KEYFLEX 1040D), 20% polyethylene-vinyl acetate copolymer (DuPont, Elvax 660), 10% polyolefin elastomer (Dow Chemical , ENGAGE 8200), 19.5% pentaerythritol rosin ester, 0.5% antioxidant 1010 (tetra[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester) with a high-speed mixer Perform mixing, extrude and granulate with an extruder at 195°C, and press the rubber granules into a hot melt adhesive film with a thickness of 0.10mm at 200°C with a flat vulcanizer. Investigate the 180° peel strength of PVC / aluminum, ABS / stainless steel, and PC / copper composited by the film at 180°C. The specific test results are shown in Table 1.

Embodiment 2

[0027] 20.5% of polyester elastomer with a melting point of 193.6°C (Chenguang Kexin, SUNPRENE TPEEH6055), 10% of copolyester (Shanghai Tianyang, PES3112), 20% of polyethylene-methyl acrylate copolymer (DuPont, Elvaloy AC 1820), 10% EPDM rubber (Dow Chemical, Nordel 4725P), 10% terpene phenolic resin, 0.5% antioxidant 1076 (β-(3,5-di-tert-butyl- 4-Hydroxyphenyl) propionate octadecyl propionate) mixed with a high-speed mixer, extruded and granulated with an extruder at 210°C, and pressed into 0.10mm thick hot Melt film. Investigate the 180°peel strength of the adhesive film at 200°C PVC / aluminum, ABS / stainless steel, PC / copper, see Table 1 for the specific test results.

Embodiment 3

[0029] Copolymerize 20% polyester elastomer with a melting point of 150°C (LG Chemical, KEYFLEX 3140D), 20% polyurethane hot melt adhesive (Taiwan Xinshun, AH701), and 20% polyethylene-ethyl acrylate-maleic anhydride (Akema, Lotader 5500), 5% amorphous α-olefin copolymer (Degussa, APAO508), 25% hydrogenated rosin glycerides, and 10% calcium carbonate were mixed with a high-speed mixer. The extruder is extruded and granulated at 160°C, and the rubber granules are pressed into a hot-melt adhesive film with a thickness of 0.10mm at 200°C by a flat vulcanizer. Investigate the 180° peel strength of PVC / aluminum, ABS / stainless steel, and PC / copper composited by the film at 180°C. The specific test results are shown in Table 1.

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Abstract

The invention discloses polyester elastomer hot melt adhesives for bonding a polar polymer and metallic materials. The polyester elastomer hot melt adhesives for bonding the polar polymer and the metallic materials comprise, by weight, polyester elastomer 20%-50%, copolymers with ester bond 15%-40%, polyolefin copolymers 5%-40%, tackifying resin 10%-40%, filler 0%-20%, and functional additives 0%-3%. Due to the fact that the polyester elastomer hot melt adhesives are thermoplastic adhesives, bonding process is simple, bonding speed is fast, the thermotolerance of the polyester elastomer hot melt adhesives can be adjusted by selecting polyester elastomer of different melting points, and bonding strength is strong. In addition, the polyester elastomer hot melt adhesive for bonding the polar polymer and the metallic materials has the advantages of being strong in bonding strength, waterproof, moist-heat resistant, high and low temperature resistant, ageing resistant and durable and stable in bonding.

Description

technical field [0001] The present invention relates to a hot-melt adhesive, in particular to a polyester elastomer hot-melt adhesive and a preparation method thereof, which are mainly used for polyvinyl chloride, polycarbonate, acrylonitrile-butadiene-styrene copolymer, etc. Adhesive compounding between permanent polymers and metal materials such as stainless steel, aluminum, copper, etc. Background technique [0002] Polyester elastomer (TPEE) is a linear block copolymer composed of crystalline, short-chain polyester hard segments and amorphous polyether soft segments alternately. The hard segment is dispersed in the continuous phase of the soft segment. In this structure, the crystalline phase acts as a physical crosslink, softens and flows when heated, and endows the polymer with strength and plasticity, while the soft segment has a lower glass transition temperature, endows the polymer with elasticity, and regulates The ratio of the two phases can change the polymer ha...

Claims

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Application Information

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IPC IPC(8): C09J167/00C09J133/04C09J123/08C09J193/04C09J125/16C09J7/00
Inventor 伍金奎唐舫成钟康刘宝玉汪加胜赵建青曾钫
Owner GUANGZHOU LUSHAN NEW MATERIALS
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