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High-viscous-force weather-resistant hot melt adhesive and preparation method thereof

A hot-melt adhesive and weather-resistant technology, used in non-polymer adhesive additives, adhesives, photovoltaic power generation and other directions, can solve the problems of difficulty in meeting the needs of use, unfavorable long-term use, general weather resistance, etc., to achieve good weather resistance, conducive to Long-term use and improved weather resistance

Active Publication Date: 2021-10-19
佛山格邦高分子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing hot melt adhesives have general weather resistance while meeting high viscosity, which is not conducive to long-term use and difficult to meet the use requirements

Method used

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  • High-viscous-force weather-resistant hot melt adhesive and preparation method thereof
  • High-viscous-force weather-resistant hot melt adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A preparation method of a high-viscosity weather-resistant hot-melt adhesive, specifically comprising the following steps:

[0024] (1) Preparation of modified titanium dioxide: first, pulverize and grind titanium dioxide, pass through a 200-mesh sieve, and then put the pulverized titanium dioxide powder, polysiloxane and hexyl diethylaminohydroxybenzoylbenzoate into the mixing tank In, make the total mass of polysiloxane and diethylaminohydroxybenzoyl hexyl benzoate be 40% of titanium dioxide powder mass, between polysiloxane and diethylaminohydroxybenzoyl hexyl benzoate The mass ratio is 1.3:1. Under the condition of 60°C, mix and stir so that the rotation speed is 180r / min, stir for 60min, then dry, pulverize, and pulverize through a 150-mesh sieve to obtain modified titanium dioxide;

[0025] (2) Weigh the corresponding weight of raw materials: ethylene-vinyl acetate copolymer 500g, modified titanium dioxide 60g, antioxidant 2g, tackifier 100g, coupling agent 6g, le...

Embodiment 2

[0027] A preparation method of a high-viscosity weather-resistant hot-melt adhesive, specifically comprising the following steps:

[0028] (1) Preparation of modified titanium dioxide: first, pulverize and grind titanium dioxide, pass through a 200-mesh sieve, and then put the pulverized titanium dioxide powder, polysiloxane and hexyl diethylaminohydroxybenzoylbenzoate into the mixing tank In, make the total mass of polysiloxane and diethylaminohydroxybenzoyl hexyl benzoate be 50% of titanium dioxide powder quality, between polysiloxane and diethylaminohydroxybenzoyl hexyl benzoate The mass ratio is 1.3:1. Mix and stir at 70°C so that the rotation speed is 200r / min, stir for 80min, then dry, pulverize, and pass through a 150-mesh sieve to obtain modified titanium dioxide;

[0029] (2) Weigh the corresponding weight of raw materials: ethylene-vinyl acetate copolymer 700g, modified titanium dioxide 80g, antioxidant 4g, tackifier 140g, coupling agent 8g, leveling agent 14g, plast...

Embodiment 3

[0031] A preparation method of a high-viscosity weather-resistant hot-melt adhesive, specifically comprising the following steps:

[0032] (1) Preparation of modified titanium dioxide: first, pulverize and grind titanium dioxide, pass through a 200-mesh sieve, and then put the pulverized titanium dioxide powder, polysiloxane and hexyl diethylaminohydroxybenzoylbenzoate into the mixing tank In, make the total mass of polysiloxane and diethylaminohydroxybenzoyl hexyl benzoate be 45% of titanium dioxide powder quality, between polysiloxane and diethylaminohydroxybenzoyl hexyl benzoate The mass ratio is 1.3:1. Under the condition of 65°C, mix and stir so that the rotation speed is 190r / min, stir for 70min, then dry, pulverize, and pulverize through a 150-mesh sieve to obtain modified titanium dioxide;

[0033] (2) Weigh the corresponding weight of raw materials: ethylene-vinyl acetate copolymer 550g, modified titanium dioxide 65g, antioxidant 2.5g, tackifier 110g, coupling agent 6...

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Abstract

The invention is applicable to the technical field of hot melt adhesives, and provides a high-viscosity weather-resistant hot melt adhesive and a preparation method thereof. The hot melt adhesive is prepared from the following components in parts by weight: 50 to 70 parts of ethylene-vinyl acetate copolymer, 6 to 8 parts of modified titanium dioxide, 0.2 to 0.4 part of antioxidant, 10 to 14 parts of tackifier, 0.6 to 0.8 part of coupling agent, 1.2 to 1.4 parts of flatting agent, 0.6 to 0.8 part of plasticizer and 3 to 7 parts of filler. The ethylene-vinyl acetate copolymer is modified by the modified titanium dioxide, so that the hot melt adhesive disclosed by the invention has good weather resistance on the basis of high viscous force, thereby being beneficial to long-term use; and the titanium dioxide is modified by polysiloxane and diethylamino hydroxybenzoyl hexyl benzoate, so that the weather resistance of the hot melt adhesive is further improved.

Description

technical field [0001] The invention belongs to the technical field of hot-melt adhesives, in particular to a high-viscosity weather-resistant hot-melt adhesive and a preparation method thereof. Background technique [0002] With the development of society, metal materials and reinforced plastics are used more and more widely. Metal materials have the advantages of electrical conductivity, thermal conductivity, high hardness, high strength, high density, high melting point, and high toughness; polyamide is the most widely used general-purpose One of the engineering plastics, it has won people's attention due to its unique low specific gravity, high tensile strength, wear resistance, good self-lubrication, excellent impact toughness, and both rigidity and flexibility. In addition, it is easy to process, high in efficiency, and light in specific gravity. The application of direct bonding between metal and polyamide plastic is more and more widely, and more and more application...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J123/08C09J11/04
CPCC09J123/0853C09J11/04C08K2003/2241C08L2201/08C08K9/04C08K9/08C08K3/22Y02E10/50
Inventor 李炳亮
Owner 佛山格邦高分子科技有限公司
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