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Hot melt adhesive for automobile trunk mats and preparation method of hot melt adhesive

A hot-melt adhesive and back-up technology, used in adhesives, adhesive types, mineral oil hydrocarbon copolymer adhesives, etc. Solvent glue has problems such as high volatility, and achieves the effects of low atomization value, simple preparation method and less equipment investment.

Inactive Publication Date: 2019-04-23
FUJIAN CHANGDE PLASTIC IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As the trunk cover is currently compounded with chloroprene solvent glue, the emission of VOC (volatile organic compounds) is very high, and almost all of them fail to pass the test. There are also aldehydes and benzene substances that exceed the standard, resulting in the VOC of the trunk cover. High content
In addition, during the compounding process, due to the high volatility of manual brushing of neoprene solvent glue, it poses a great threat to the health of operators.

Method used

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  • Hot melt adhesive for automobile trunk mats and preparation method of hot melt adhesive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A kind of hot-melt adhesive for automobile trunk mat, comprising the following components by weight: 15 parts by weight of polyolefin elastomer rich in propylene, 47 parts by weight of polyolefin elastomer of ethylene and propylene copolymerization, and 37.7 parts by weight of tackifying resin part, 0.3 part by weight of antioxidant.

[0023] Specifically, the tackifying resin is one or both of hydrogenated petroleum resin and non-hydrogenated petroleum resin.

[0024] Specifically, the antioxidants are tetrakis[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]pentaerythritol, 2,6-di-tert-butyl-4-methylphenol and tris[2.4 - one or two kinds of di-tert-butylphenyl] phosphite.

[0025] A kind of hot-melt adhesive for automobile trunk cushion and preparation method thereof, comprises the following steps:

[0026] 1) Put 15 parts by weight of propylene-rich polyolefin elastomer, 47 parts by weight of ethylene, propylene copolymerized polyolefin elastomer and 0.3 parts by w...

Embodiment 2

[0033] A kind of hot-melt adhesive for automobile trunk cushion as described in embodiment 1 and preparation method thereof, can also adopt following technology:

[0034] 1) Put 20 parts by weight of propylene-rich polyolefin elastomer, 42 parts by weight of ethylene, propylene copolymerized polyolefin elastomer and 0.5 part by weight of antioxidant into the reactor, start heating and stir evenly, the reactor The temperature of the inner material is controlled at 160-170°C, and heated for 50-70 minutes until the material is completely melted.

[0035] 2) Put 37.5 parts by weight of tackifying resin into the reaction kettle of step 1) and stir evenly. The stirring speed is controlled at 60-100r / min. After stirring for 5-10min, stop heating, close the reaction kettle, and pump out the inside of the reaction kettle. Vacuum until the pressure is less than -0.09Mpa, control the vacuuming time at 40-60 minutes, and release the vacuum after the vacuuming time is over, to obtain hot-m...

Embodiment 3

[0039] A kind of hot-melt adhesive for automobile trunk cushion as described in embodiment 1 and preparation method thereof, can also adopt following technology:

[0040] 1) Put 30 parts by weight of propylene-rich polyolefin elastomer, 32 parts by weight of ethylene, propylene copolymerized polyolefin elastomer and 1 part by weight of antioxidant into the reactor, start heating and stir evenly, the reactor The temperature of the inner material is controlled at 160-170°C, and heated for 50-70 minutes until the material is completely melted.

[0041] 2) Put 37 parts by weight of tackifying resin into the reaction kettle of step 1) and stir evenly. The stirring speed is controlled at 60-100r / min. After stirring for 5-10min, stop heating, seal the reaction kettle, and pump out the inside of the reaction kettle. Vacuum until the pressure is less than -0.09Mpa, control the vacuuming time at 40-60 minutes, and release the vacuum after the vacuuming time is over, to obtain hot-melt p...

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Abstract

The invention discloses a hot melt adhesive for automobile trunk mats and a preparation method of the hot melt adhesive. The hot melt adhesive is prepared from, by weight, 10-30 parts of propylene-rich polyolefin elastomer, 30-50 parts of ethylene and propylene copolymerized polyolefin elastomer, 25-50 parts of tackifying resin and 0.3-1 part of an antioxidant. The hot melt adhesive for the automobile trunk mats and the preparation method have advantages that the preparation method is simple, harmful substance discharge in a production process is avoided, solvent consumption is avoided, and the hot melt adhesive is environmentally friendly; in use, operating process simplicity and low equipment investment are realized, and the hot melt adhesive has advantages of low VOC, low odor, low atomization value, excellent adhesiveness, high resistance to high and low temperatures and aging resistance.

Description

technical field [0001] The invention relates to the technical field of hot-melt adhesive preparation for automobile trunk mats, in particular to a hot-melt adhesive for automobile trunk mats and a preparation method thereof. Background technique [0002] In recent years, due to the higher and higher requirements for the usability and commerciality of automobiles, the materials used in automobile production have become more and more diversified. Bonding and sealing have become an indispensable process. Adhesives have become necessary materials for automobile production. Technology has also become one of the important technologies in automobile manufacturing. Hot melt adhesive is a new type of adhesive, which is a synthetic resin with thermoplastic plastic as the main body. When encountering high temperature (100-200°C), it begins to melt into a liquid. When it returns to normal temperature, it returns to solid again. This glue does not contain any solvent, non-toxic, quick...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J123/08C09J123/10C09J157/02C09J11/06
CPCC08L2201/08C08L2205/03C09J11/06C09J123/0815C08L23/10C08L57/02C08K5/1345C08K5/13C08K5/526
Inventor 许荣鹏项英凡吴培煌
Owner FUJIAN CHANGDE PLASTIC IND
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