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High-strength hot melt adhesive for bonding automobile steel plate and preparation method of hot melt adhesive

A high-strength technology for automotive steel plates, applied in the direction of non-polymer adhesive additives, adhesives, wax adhesives, etc., can solve the problems of high prices, prevent high-temperature oxidation deterioration, high bonding strength, and long open time Effect

Active Publication Date: 2017-02-15
浙江固特新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the hot melt adhesives that can meet the needs of automotive interiors are imported from abroad and are expensive, leaving domestic automakers in the dust.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Weigh 25kg of high melting point wax, 100kg of thermoplastic elastomer SBS, 40kg of random polyolefin rich in polypropylene; 100kg of random polyolefin rich in polybutene, 40kg of polyethylene vinyl acetate maleic anhydride graft copolymer; Vinyl acetate copolymer 40kg, C5 hydrogenated petroleum resin 60kg; styrene modified terpene resin 75kg; polyhydroxy zinc salt 10kg, antioxidant 5kg, coupling agent 5kg.

[0042] Preparation method: Step 1: Heat the stirring tank to 150°C, add high melting point wax in proportion, and stir until completely melted; Step 2: Add thermoplastic elastomer SBS to the mixture obtained in Step 1 in proportion, and immediately add The stirred tank is evacuated to a vacuum of 0.3MPa, stirred until it is completely melted, and kept for 20 minutes; the third step: adding polypropylene-rich random polyolefin, polybutene-rich random polyolefin and antioxidant in proportion In the mixture obtained in the second step, stir until it is completely melt...

Embodiment 2

[0044] Weigh 20kg of high melting point wax, 90kg of thermoplastic elastomer SBS, 40kg of random polyolefin rich in polypropylene; 125kg of random polyolefin rich in polybutene, 45kg of polyethylene vinyl acetate maleic anhydride graft copolymer; Vinyl acetate copolymer 45kg, C5 hydrogenated petroleum resin 50kg; styrene modified terpene resin 60kg; polyhydroxy zinc salt 10kg, antioxidant 7.5kg, coupling agent 7.5kg.

[0045]Preparation method: Step 1: Heat the stirring tank to 160°C, add high melting point wax in proportion, and stir until completely melted; Step 2: Add thermoplastic elastomer SBS to the mixture obtained in Step 1 in proportion, and immediately add The stirred tank is evacuated to a vacuum degree of 0.5MPa, stirred until it is completely melted, and kept for 30 minutes; the third step: adding random polyolefin rich in polypropylene, random polyolefin rich in polybutene and antioxidant in proportion In the mixture obtained in the second step, stir until it is ...

Embodiment 3

[0047] Weigh 40kg of high melting point wax, 90kg of thermoplastic elastomer SBS, 40kg of random polyolefin rich in polypropylene; 75kg of random polyolefin rich in polybutene, 50kg of polyethylene vinyl acetate maleic anhydride graft copolymer; Vinyl acetate copolymer 50kg, C5 hydrogenated petroleum resin 55kg; styrene modified terpene resin 80kg; polyhydroxy zinc salt 15kg, antioxidant 2.5kg, coupling agent 2.5kg.

[0048] Preparation method: Step 1: Heat the stirring tank to 140°C, add high melting point wax in proportion, and stir until completely melted; Step 2: Add thermoplastic elastomer SBS to the mixture obtained in Step 1 in proportion, and immediately add The stirred tank is evacuated to a vacuum degree of 0.1MPa, stirred until it is completely melted, and kept for 10 minutes; the third step: adding polypropylene-rich random polyolefin, polybutene-rich random polyolefin and antioxidant in proportion In the mixture obtained in the second step, stir until it is comple...

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Abstract

The invention belongs to the technical field of an adhesive, and specifically relates to a high-strength hot melt adhesive for an automobile steel plate and a preparation method of the hot melt adhesive. Raw materials of the hot melt adhesive comprise a certain ratio of high-melting-point wax, thermoplastic elastomer SBS, random polyolefin rich in polypropylene, random polyolefin rich in polybutene, a poly (ethylene-vinyl acetate) and maleic anhydride graft copolymer, an ethylene vinyl acetate copolymer, a C5 hydrogenated petroleum resin, a styrene-modified terpene resin, polyhydroxyl zinc salt, an anti-oxidant, and a coupling agent. The invention aims to provide a high-strength hot melt adhesive, which is free of odor, high in bonding strength, and good in high and low temperature resistance and is used for bonding an automobile steel plate and to provide a preparation method of the hot melt adhesive.

Description

technical field [0001] The invention belongs to the technical field of adhesives, in particular to a hot-melt adhesive for bonding high-strength automobile steel plates and a preparation method thereof. Background technique [0002] At present, the automobile and spare parts production industry that is vigorously developed in our country requires a large amount of industrial adhesives, which are widely used for bonding and sealing between metal materials, plastics, rubber and other materials. In the production line, the degree of automation is high and the production efficiency is high. The adhesive used requires good bonding and sealing performance and short curing time. At the same time, since the car is exposed to the sun in summer, the temperature inside the car is as high as 80 ℃ ~ 100 ℃, so there are also high requirements for the temperature resistance of the adhesive, and it must not emit odor. In recent years, the automobile industry has developed rapidly, and the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J153/02C09J191/06C09J151/00C09J123/12C09J123/20C09J123/08C09J157/02C09J145/00C09J11/06
Inventor 王欣蕊陈慧邵宝有邵晓巍吴添园
Owner 浙江固特新材料科技股份有限公司
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