Hot melt adhesive used for automotive interior trims and preparation method of hot melt adhesive

A technology for automotive interior parts and hot-melt adhesives, applied in the direction of adhesives, adhesive types, mineral oil hydrocarbon copolymer adhesives, etc., can solve the problems of inability to apply interior adhesives, etc., and achieve long opening time and good toughness , high-strength effect

Active Publication Date: 2017-08-29
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

This patent cannot be applied to interior decoration adhesives, so the application area needs to be expanded

Method used

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  • Hot melt adhesive used for automotive interior trims and preparation method of hot melt adhesive
  • Hot melt adhesive used for automotive interior trims and preparation method of hot melt adhesive
  • Hot melt adhesive used for automotive interior trims and preparation method of hot melt adhesive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Refer to Table 1 for specific raw materials.

[0034] Table 1

[0035]

[0036] Wherein, the VA content of the polyethylene vinyl acetate maleic anhydride copolymer resin is 28%, and the polyethylene vinyl acetate maleic anhydride copolymer resin has a melt index of 150 g / 10 min at 190° C.

[0037] The mass of styrene in the thermoplastic elastomer SIS accounts for 25-35% of the mass of the thermoplastic elastomer SIS, and the melt index of the thermoplastic elastomer SIS at 190°C is 5-15g / 10min.

[0038] The softening point of C9 hydrogenated petroleum resin is ≥95°C, and the acid value is less than 5mgKOH / g.

[0039] The softening point of the styrene-modified terpene resin is ≥105°C, and the acid value is less than 5mgKOH / g.

[0040] Preferably, the pure monomer resin in this embodiment is a rosin-modified resin with a softening point ≥ 80°C.

[0041] As preferably, the antioxidant in this embodiment is phenyl-β-naphthylamine, 2,6-di-tert-butyl-p-cresol or phen...

Embodiment 2

[0051] Refer to Table 2 for specific raw materials.

[0052] Table 2

[0053]

[0054] Wherein, the VA content of the polyethylene vinyl acetate maleic anhydride copolymer resin is 28%, and the polyethylene vinyl acetate maleic anhydride copolymer resin has a melt index of 150 g / 10 min at 190° C.

[0055] The mass of styrene in the thermoplastic elastomer SIS accounts for 25-35% of the mass of the thermoplastic elastomer SIS, and the melt index of the thermoplastic elastomer SIS at 190°C is 5-15g / 10min.

[0056] The softening point of C9 hydrogenated petroleum resin is ≥95°C, and the acid value is less than 5mgKOH / g.

[0057] The softening point of the styrene-modified terpene resin is ≥105°C, and the acid value is less than 5mgKOH / g.

[0058] Preferably, the pure monomer resin in this embodiment is a rosin-modified resin with a softening point ≥ 80°C.

[0059] As preferably, the antioxidant in this embodiment is phenyl-β-naphthylamine, 2,6-di-tert-butyl-p-cresol or phen...

Embodiment 3

[0069] Refer to Table 3 for specific raw materials.

[0070] table 3

[0071]

[0072]

[0073] Wherein, the VA content of the polyethylene vinyl acetate maleic anhydride copolymer resin is 28%, and the polyethylene vinyl acetate maleic anhydride copolymer resin has a melt index of 150 g / 10 min at 190° C.

[0074] The mass of styrene in the thermoplastic elastomer SIS accounts for 25-35% of the mass of the thermoplastic elastomer SIS, and the melt index of the thermoplastic elastomer SIS at 190°C is 5-15g / 10min.

[0075] The softening point of C9 hydrogenated petroleum resin is ≥95°C, and the acid value is less than 5mgKOH / g.

[0076] The softening point of the styrene-modified terpene resin is ≥105°C, and the acid value is less than 5mgKOH / g.

[0077] Preferably, the pure monomer resin in this embodiment is a rosin-modified resin with a softening point ≥ 80°C.

[0078] As preferably, the antioxidant in this embodiment is phenyl-β-naphthylamine, 2,6-di-tert-butyl-p-cr...

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Abstract

The invention relates to a hot melt adhesive used for automotive interior trims. The hot melt adhesive is characterized in that raw materials of the hot melt adhesive comprise the following components, in percentages by weight, 0-10% of high melting-point wax with a melting point of 130+/-5 DEG C; 20-28% of thermoplastic elastomer SIS; 1-5% of vinyl chloride-vinyl acetate-maleic anhydride copolymer resin; 1-5% of maleic anhydride grafted and modified polyolefin wax; 2-8% of pure monomer resin; 5-15% of C9 hydrogenation petroleum resin; 20-30 % of styrene modified terpene resin; 0.5-5% of a trihydroxyl zinc salt; 0.5-1.5% of an antioxidant; and 0-3% of a coupling agent. The VA(vinyl acetate) content of the vinyl chloride-vinyl acetate-maleic anhydride copolymer resin is 28%, and the melt index of the vinyl chloride-vinyl acetate-maleic anhydride copolymer resin at a temperature of 190 DEG C is 150 g/10 min; the mass of styrene in the thermoplastic elastomer SIS is 25-35% of that of the thermoplastic elastomer SIS, and the melt index of the thermoplastic elastomer SIS at a temperature of 190 DEG C is 5-15 g/10 min; the softening point of the C9 hydrogenation petroleum resin is 95 DEG C or greater, and the acid value is less than 5 mg KOH/g, and the softening point of the styrene modified terpene resin is 105 DEG C or greater, and the acid value is less than 5 mg KOH/g.

Description

technical field [0001] The invention belongs to the technical field of adhesives, and relates to a hot-melt adhesive for automotive interior parts 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°C to 100°C, 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 interior of automobil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J145/00C09J153/02C09J191/06C09J123/08C09J157/02C09J193/04C09J11/06
CPCC08L2201/08C08L2205/035C08L2207/04C09J11/06C09J145/00C09J153/02C08L53/02C08L91/06C08L23/0869C08L57/02C08L93/04C08K5/18C08K5/13C08K5/54C08L45/00
Inventor 陈慧邵晓巍王欣蕊邵宝有吴添园沈杰一繁
Owner 浙江固特新材料科技股份有限公司
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