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A kind of hot melt adhesive, TPU film and preparation method

A technology of hot melt adhesive and adhesive film, applied in the field of hot melt adhesive, can solve the problems of poor water resistance and oil resistance, low mechanical strength, poor bonding strength, etc., to achieve good water and oil resistance, and easy transportation. The effect of storage and high bonding strength

Active Publication Date: 2022-05-17
广东安利华新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the TPU film currently on the market generally has the defects of poor bonding strength, poor stickiness, low mechanical strength, poor water resistance and oil resistance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A hot-melt adhesive is prepared from the following raw materials in parts by weight: 60 parts of hot-melt rubber particles, 10 parts of polyester polyol, 5 parts of diphenylmethane diisocyanate, and 2 parts of erucamide.

[0032] The raw material also includes 20 parts by weight of dimethyl carbonate.

[0033] The hot-melt colloids used are hot-melt colloids with a melting point of 155° C., and the polyester polyols are polyester polyols with a molecular weight of 2000-2200.

[0034] A TPU adhesive film comprises a release film and an adhesive layer coated on the release film, and the adhesive layer is formed by coating the above-mentioned hot melt adhesive.

[0035] A kind of preparation method of TPU adhesive film as mentioned above, comprises the following steps:

[0036] A, raw material preparation: take the raw material of formula weight part for subsequent use;

[0037] B. Mixing of the main ingredients: heat and mix the hot-melt rubber particles, erucamide and ...

Embodiment 2

[0047] A hot-melt adhesive is made of the following raw materials in parts by weight: 63 parts of hot-melt rubber particles, 11 parts of polyester polyol, 5.5 parts of diphenylmethane diisocyanate, and 2.3 parts of erucamide.

[0048] The raw material also includes 21 parts by weight of dimethyl carbonate.

[0049] The hot-melt colloids used are hot-melt colloids with a melting point of 158° C., and the polyester polyols are polyester polyols with a molecular weight of 2200-2400.

[0050] A TPU adhesive film comprises a release film and an adhesive layer coated on the release film, and the adhesive layer is formed by coating the above-mentioned hot melt adhesive.

[0051] A kind of preparation method of TPU adhesive film as mentioned above, comprises the following steps:

[0052] A, raw material preparation: take the raw material of formula weight part for subsequent use;

[0053] B. Mixing of the main ingredients: heat and mix the hot-melt rubber particles, erucamide and di...

Embodiment 3

[0063] A hot-melt adhesive is made of the following raw materials in parts by weight: 65 parts of hot-melt rubber particles, 12 parts of polyester polyol, 6 parts of diphenylmethane diisocyanate, and 2.5 parts of erucamide.

[0064] The raw material also includes 23 parts by weight of dimethyl carbonate.

[0065] The hot-melt colloids used are hot-melt colloids with a melting point of 160° C., and the polyester polyols are polyester polyols with a molecular weight of 2400-2600.

[0066] A TPU adhesive film comprises a release film and an adhesive layer coated on the release film, and the adhesive layer is formed by coating the above-mentioned hot melt adhesive.

[0067] A kind of preparation method of TPU adhesive film as mentioned above, comprises the following steps:

[0068] A, raw material preparation: take the raw material of formula weight part for subsequent use;

[0069] B. Mixing of the main ingredients: heat and mix the hot-melt rubber particles, erucamide and dime...

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Abstract

The invention relates to the technical field of hot-melt adhesives, in particular to a hot-melt adhesive, a TPU film and a preparation method, which are made of the following raw materials in parts by weight: 60-70 parts of hot-melt rubber particles, 10-13 parts of polyester polyol , 5-7 parts of diphenylmethane diisocyanate, 2-3 parts of erucamide. The hot melt adhesive has high bonding strength, good stickiness, high mechanical strength, good toughness, good water resistance and oil resistance, and the TPU film has high bonding strength, good stickiness, high mechanical strength, good toughness, water resistance and oil resistance Good performance, the TPU film is equipped with a release film, which is convenient for transportation and storage. When in use, it can be used directly by tearing off the release film, which is convenient to use.

Description

technical field [0001] The invention relates to the technical field of hot melt adhesives, in particular to a hot melt adhesive, a TPU adhesive film and a preparation method. Background technique [0002] Hot melt adhesives currently used in the market include ethylene-vinyl acetate copolymer (EVA), polyamide (PA), copolyester (PET), polyethylene (PE) and polyurethane (PU). Melt adhesive pellets, hot melt adhesive powder, hot melt adhesive sticks and hot melt adhesive films, these hot melt adhesive products are widely used in industries such as automobiles, electronics, construction, light industry and textiles. For the bonding between materials in the form of large-scale lamination, hot-melt adhesive films are widely used due to their high efficiency and convenient construction. [0003] Polyurethane hot-melt adhesive film has the advantages of convenient positioning and high peel strength. It is a hot-melt adhesive with excellent adhesion and sealing performance. It has d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J175/06C09J11/06C09J7/35C09J7/40
CPCC09J175/06C09J11/06C09J7/35C09J7/40C09J2301/304C09J2301/408C08K5/20
Inventor 张涛辉伍平
Owner 广东安利华新材料科技有限公司
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