A kind of foaming hot-melt adhesive for household appliances and preparation method thereof

A foaming heat and hot melt adhesive technology, applied in the direction of adhesives, non-polymer adhesive additives, adhesive types, etc., can solve the problems of large consumption, low bonding strength, and resistance to high and low temperatures, and achieve The effect of low consumption and strong bonding ability

Active Publication Date: 2018-10-12
XINXIANG HUAYANG ADHESIVE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But EVA hot melt adhesive also has obvious disadvantages: low bonding strength, not r

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0025] A preparation method of a foaming hot melt adhesive for household appliances, the preparation method comprising the steps of:

[0026] Step 1: Add the viscosity modifier into the reaction kettle equipped with electric stirring and heating devices, and keep the temperature of the viscosity modifier up to 140°C;

[0027] Step 2: When the viscosity regulator melts to half, start the electric stirring device in the reaction kettle and add polyolefin resin, and continue to stir at a constant temperature of 140°C until the polyolefin resin is evenly dispersed;

[0028] Step 3: After the polyolefin resin in Step 2 is uniformly dispersed, add ethylene-vinyl acetate copolymer under stirring, and slowly add antioxidant after the ethylene-vinyl acetate copolymer is completely melted under a constant temperature environment of 140°C;

[0029] Step 4: Stir continuously in a constant temperature environment of 140°C to mix the antioxidant evenly, then add the tackifying resin, start ...

Example Embodiment

[0032] Embodiment one

[0033] A foaming hot-melt adhesive for home appliances, comprising the following raw materials formulated in parts by weight: 50 parts of viscosity modifier, 100 parts of ethylene-vinyl acetate copolymer, 100 parts of polyolefin resin, 300 parts of tackifying resin and antioxidant 5 doses;

[0034] Described viscosity modifier is the mixture of microcrystalline wax and Fischer-Tropsch wax and polyethylene wax, and the quality of microcrystalline wax in the described viscosity modifier is 92% of the total mass of viscosity modifier, and the quality of Fischer-Tropsch wax is viscosity adjustment 4% of the total mass of the agent, and the quality of polyethylene wax is 4% of the total mass of the viscosity regulator; the VA content in the ethylene-vinyl acetate copolymer is: 19, and the melt index is: 150-500g / 10min; The polyolefin resin is a polyolefin produced by metallocene catalysis technology; the polyolefin resin is AFFINTY GA1950; the softening poi...

Example Embodiment

[0042] Embodiment two

[0043] A foaming hot-melt adhesive for home appliances, comprising the following raw materials formulated in parts by weight: 200 parts of viscosity regulator, 400 parts of ethylene-vinyl acetate copolymer, 300 parts of polyolefin resin, 600 parts of tackifying resin and antioxidant 10 doses;

[0044] The viscosity modifier is a mixture of microcrystalline wax and polyethylene wax; the quality of the microcrystalline wax in the viscosity modifier is 90% of the total mass of the viscosity modifier;

[0045] The VA content in the ethylene-vinyl acetate copolymer is: 19, and the melt index is: 150-500g / 10min;

[0046] The polyolefin resin is a polyolefin produced by metallocene catalysis technology; the polyolefin resin is a mixture of AFFINTY GA1950 and AFFINTY GA1900; the mass ratio of AFFINTY GA1950 and AFFINTY GA1900 in the mixture of AFFINTY GA1950 and AFFINTY GA1900 is: 7:3;

[0047] The softening point of the tackifying resin is 100°C, and the tack...

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Abstract

The invention belongs to a foamable hot melt adhesive for home appliances and a preparation method of the hot melt adhesive. The foamable hot melt adhesive is prepared from the following raw materials in parts by weight: 50-200 parts of viscosity modifiers, 100-400 parts of ethylene-vinyl acetate copolymers, 100-300 parts of polyolefine resins, 300-600 parts of tackifying resins and 5-10 parts of antioxidants. The foamable hot melt adhesive has the advantages of high adhesive ability, high and low temperature resistance and low consumption.

Description

technical field [0001] The invention belongs to the technical field of hot-melt adhesives, and in particular relates to a foaming hot-melt adhesive for household appliances and a preparation method thereof. Background technique [0002] With the continuous development of hot melt adhesive technology, hot melt adhesive products are used more and more widely. As an important auxiliary material, hot melt adhesive mainly plays the role of bonding and sealing in application. Hot melt adhesives are mainly used in automation equipment due to their advantages of cleanliness, pollution-free, non-toxic, short open time, and fast curing speed. [0003] Hot melt adhesive has fast curing speed and strong bonding performance, and is widely used in packaging, book binding, bonding and sealing of home appliances, and automatic and rapid production lines in the tobacco industry. In addition, it also has a good sealing and insulating effect on some railway signal cables. [0004] EVA hot-m...

Claims

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Application Information

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IPC IPC(8): C09J157/02C09J191/06C09J123/06C09J123/08C09J123/00C09J11/06
CPCC08K2201/014C08L2201/08C08L2203/20C08L2205/025C08L2205/035C09J11/06C09J157/02C08L91/06C08L23/06C08L23/0853C08L23/00C08K5/1345C08K5/526
Inventor 毕同召聂玉虎
Owner XINXIANG HUAYANG ADHESIVE
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