Hot melt adhesive as well as preparation method and application thereof

A technology for hot melt adhesive and reaction vessel, which is applied in the directions of adhesives, adhesive additives, non-polymer adhesive additives, etc., can solve the problems of poor high temperature resistance, unpleasant odor, etc., and achieve the effect of excellent high temperature resistance characteristics

Inactive Publication Date: 2017-12-29
VALENCE BONDING TECH SHANGHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the EVA, APAO, and PUR hot melt adhesives for automobiles currently on the market have poor high temperature resistance and sometimes emit an unpleasant smell during use.

Method used

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  • Hot melt adhesive as well as preparation method and application thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0028] According to the preparation method of the second aspect, for preparing the hot melt adhesive described in the first aspect, the preparation method comprises the following steps:

[0029] S1: Accurately weigh each component;

[0030] S2: Add the wax into a reaction vessel, set the temperature to 150°C, start heating; set the initial stirring speed to 30 rpm, start stirring, increase by 20 rpm every 10 minutes until it reaches 60 rpm Minutes, keep stirring until the wax is completely melted;

[0031] S3: Add APAO, tackifying resin and 2 / 3 quality antioxidant into the reaction vessel, and stir at a stirring speed of 30 rpm;

[0032] S4: vacuumize the reaction vessel, and fill it with nitrogen until the vacuum degree in the reaction vessel is 0.08Mpa;

[0033] S5: When the temperature of the reaction material reaches 128-132°C, add the remaining 1 / 3 mass of antioxidant into the reaction vessel, open the pipeline and heat for 30 minutes;

[0034] S6: Turn off the pipelin...

Embodiment 1

[0038] According to this embodiment, a high-temperature-resistant and odorless hot-melt adhesive for automobiles consists of the following components: 64Kg APAO, 5Kg polyethylene wax, 30Kg hydrogenated petroleum tackifying resin and 1Kg multi-component hindered phenolic macromolecular antioxidant.

[0039] Prepare the hot melt adhesive for automobiles according to the following steps:

[0040] S1: Accurately weigh each component;

[0041] S2: Add polyethylene wax into a stirred tank, set the temperature to 150°C, start heating; set the initial stirring speed to 30 rpm, start stirring, increase by 20 rpm every 10 minutes until it reaches 60 rpm Minutes, keep stirring until the polyethylene wax is completely melted;

[0042] S3: Add APAO, tackifying resin and 2 / 3 mass multi-component hindered phenolic macromolecular antioxidant into the stirring tank, and stir at a stirring speed of 30 rpm;

[0043] S4: vacuumize the stirred tank, and adjust the nitrogen valve according to the...

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PUM

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Abstract

The invention relates to a hot melt adhesive as well as a preparation method thereof, and also relates to application of the hot melt adhesive in automobiles. The hot melt adhesive is prepared from the following components by mass percent: 60-66% of amorphous poly alpha olefin (APAO), 3-6% of wax, 24-35% of tackifying resin and 0.5-1.5% of an antioxidant. The hot melt adhesive provided by the invention has an excellent high-temperature-resistant characteristic and does not emit odor at the room temperature, thus being especially suitable for being used as an automobile hot melt adhesive.

Description

technical field [0001] The invention belongs to the technical field of adhesives, specifically relates to a hot melt adhesive and a preparation method thereof, and also relates to the application of the hot melt adhesive in automobiles. Background technique [0002] Hot melt adhesive (English name: Hot Glue) is a kind of plastic adhesive. Its physical state changes with temperature within a certain temperature range, but its chemical properties remain unchanged. It is non-toxic and tasteless, and it is an environmentally friendly chemical product; The product itself is solid, easy to pack, transport, store, solvent-free, non-polluting, and non-toxic; and its production process is simple, with high added value, and is favored for its strong bonding strength and fast speed. [0003] With the improvement of the automation level of automobile production, the automobile industry needs a large number of adhesives that can be quickly bonded, can adapt to high-speed automatic produc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J123/00C09J11/06
CPCC09J123/00C08L2201/08C08L2205/03C09J11/06C08L23/06C08L57/02C08K5/13
Inventor 邓伟李超杰明俊江陈伟民
Owner VALENCE BONDING TECH SHANGHAI CO LTD
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