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Modified polyester hot melt adhesive and preparation method thereof

A polyester hot-melt adhesive and modified polyester technology, applied in adhesives, film/sheet adhesives, adhesive additives, etc., can solve the problem of poor adhesion between metals and epoxy resins, resource utilization and Disadvantages of environmental protection, poor repeatability and other problems, to achieve the effect of good repeatability, excellent processability, and improved low temperature toughness

Inactive Publication Date: 2016-03-30
林初煌
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Polyester hot-melt adhesives can be used for bonding parts of household appliances and electronic products. For example, polyester used for bonding internal parts of refrigerators needs to meet good low-temperature toughness and have good bonding effect on metals and plastics. Existing Polyester hot melt adhesives in the technology are brittle at -10°C or lower, easy to crack, poor in toughness, and have poor bonding effects on metals, epoxy resins, etc.
In addition, the polyester hot-melt adhesives in the prior art have poor repeatability, and have disadvantages in terms of resource utilization and environmental protection.
Therefore, the present invention aims to develop a modified polyester hot-melt adhesive, by modifying the existing polyester hot-melt adhesive, to solve its poor low-temperature toughness and easy cracking deficiencies, while providing its metal- The bonding strength of epoxy resin is better for the bonding of internal parts of low-temperature electrical appliances, and at the same time, it has excellent repeatability and is convenient for comprehensive utilization of resources

Method used

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  • Modified polyester hot melt adhesive and preparation method thereof
  • Modified polyester hot melt adhesive and preparation method thereof
  • Modified polyester hot melt adhesive and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0026] Modified polyester hot-melt adhesive, the modified polyester hot-melt adhesive is processed from the following components by weight percentage: 40 parts of polyester hot-melt adhesive, 30 parts of polyamide-based silicone thermoplastic elastomer, antioxidant 1640.5 parts, 1 part of auxiliary agent, described auxiliary agent is organic bentonite, and the preparation method of described modified polyester hot-melt adhesive is carried out as follows:

[0027] (1) Mix the formulated amount of antioxidants and additives in a high-mixer evenly for later use. Organic bentonite has good dispersibility. Fully mix and absorb antioxidants through organic bentonite to make antioxidants more dispersible. , the antioxidant performance can be fully exerted;

[0028] (2) Add the formulated amount of polyester hot melt adhesive and polyamide-based silicone thermoplastic elastomer to the uniformly mixed materials in step (1) and further mix evenly, then add them to the screw extrusion gr...

Embodiment 2

[0032] Modified polyester hot-melt adhesive, the modified polyester hot-melt adhesive is processed from the following components by weight percentage: 70 parts of polyester hot-melt adhesive, 50 parts of polyamide-based silicone thermoplastic elastomer, antioxidant 1641 parts, 3 parts of auxiliary agent, described auxiliary agent is organic bentonite, and the preparation method of described modified polyester hot-melt adhesive is carried out as follows:

[0033] (1) Mix the formulated amount of antioxidants and additives in a high-mixer evenly for later use. Organic bentonite has good dispersibility. Fully mix and absorb antioxidants through organic bentonite to make antioxidants more dispersible. , the antioxidant performance can be fully exerted;

[0034] (2) Add the formulated amount of polyester hot melt adhesive and polyamide-based silicone thermoplastic elastomer to the uniformly mixed materials in step (1) and further mix evenly, then add them to the screw extrusion gra...

Embodiment 3

[0038] Modified polyester hot-melt adhesive, the modified polyester hot-melt adhesive is processed from the following components by weight percentage: 60 parts of polyester hot-melt adhesive, 40 parts of polyamide-based silicone thermoplastic elastomer, antioxidant 1640.75 parts, 2 parts of auxiliary agent, described auxiliary agent is organic bentonite, and the preparation method of described modified polyester hot-melt adhesive is carried out as follows:

[0039] (1) Mix the formulated amount of antioxidants and additives in a high-mixer evenly for later use. Organic bentonite has good dispersibility. Fully mix and absorb antioxidants through organic bentonite to make antioxidants more dispersible. , the antioxidant performance can be fully exerted;

[0040] (2) Add the formulated amount of polyester hot melt adhesive and polyamide-based silicone thermoplastic elastomer to the uniformly mixed materials in step (1) and further mix evenly, then add them to the screw extrusion ...

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Abstract

The invention relates to a modified polyester hot melt adhesive and a preparation method thereof. The modified polyester hot melt adhesive is prepared from components in parts by weight as follows: 40-70 parts of a polyester hot melt adhesive, 30-50 parts of a polyamide based organic silicon thermoplastic elastomer, 0.5-1 part of an antioxidant 164 and 1-3 parts of an auxiliary. The polyamide based organic silicon thermoplastic elastomer and organic bentonite are jointly adopted to modify the polyester hot melt adhesive, and the polyamide based organic silicon thermoplastic elastomer has high tensile strength and low-temperature impact strength, good tear resistance and good chemical resistance; the organic bentonite has good thixotropy and chemical stability, proper quantities of the polyamide based organic silicon thermoplastic elastomer and the organic bentonite are added, promote each other and have a synergistic effect, efficient modification of the polyester hot melt adhesive is realized, the low-temperature toughness, the aging resistance and the anti-stripping performance of the polyester hot melt adhesive can be remarkably improved, the processing performance is excellent, the bonding strength to metal-epoxy resin is high, and repeated processing performance for residual leftover materials is good.

Description

technical field [0001] The invention relates to a modified polyester hot melt adhesive and a preparation method thereof. Background technique [0002] Polyester hot-melt adhesives can be used for bonding parts of household appliances and electronic products. For example, polyester used for bonding internal parts of refrigerators needs to meet good low-temperature toughness and have good bonding effect on metals and plastics. Existing Polyester hot-melt adhesives in the technology are brittle at -10°C or lower, easy to crack, have poor toughness, and have poor bonding effects on metals and epoxy resins. In addition, the polyester hot-melt adhesives in the prior art have poor repeatability and have disadvantages in terms of resource utilization and environmental protection. Therefore, the present invention aims to develop a modified polyester hot-melt adhesive, by modifying the existing polyester hot-melt adhesive, to solve its poor low-temperature toughness and easy cracking...

Claims

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Application Information

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IPC IPC(8): C09J167/02C09J187/00C09J11/04C09J7/00
CPCC08L2207/04C09J7/00C09J11/04C09J167/02C09J2301/304C08L87/00C08K3/346
Inventor 林初煌
Owner 林初煌
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