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Modified polyurethane resin hot melt adhesive

A technology of polyurethane resin and hot melt adhesive, applied in the direction of polyurea/polyurethane adhesive, adhesive, adhesive type, etc., can solve the problems of colloid shedding, mildew and deterioration on the surface of fabrics, etc., and achieve the effect of inhibiting the growth of mold

Inactive Publication Date: 2020-01-14
东莞市米儿塑胶原料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] With the improvement of people's dress requirements, the introduction of new technologies and new processes in the production process of fabrics, new fabrics are constantly coming out, and the lamination of fabrics is generally bonded by hot melt adhesives. After the melt glue is bonded to the fabric, it is easy to cause the colloid to fall off because the fabric needs to be washed frequently after it is made into clothes, and the colloid is easily moldy and deteriorated on the surface of the fabric under the influence of sweat stains and the external environment for a long time

Method used

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  • Modified polyurethane resin hot melt adhesive
  • Modified polyurethane resin hot melt adhesive
  • Modified polyurethane resin hot melt adhesive

Examples

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Embodiment 1

[0026] The invention provides a hot-melt adhesive modified polyurethane resin hot-melt adhesive, which comprises 90.3 parts of modified polyurethane resin, 8 parts of tackifier, 5 parts of polyethylene wax, 4 parts of hydrogenated rosin glyceride, 0.3 part of organic silicon and nitrate Stir and mix 0.4 parts in proportion at 35℃~55℃; then mix the mixed modified polyurethane resin, polycarbodiimide, nano-silver solution and organic tin catalyst and heat to 100-115℃, and mix the diisocyanate Heating to 60-75°C, heating to 40-60°C for small molecular weight straight-chain aliphatic diols; adding chemical fiber elements with a component content of 0.03-0.055 to mix with each raw material after the heated raw material components are accurately measured After that, it is injected into the twin-screw reactor, and the mixed material is reacted and plasticized in the twin-screw reactor, and the target product is obtained after underwater pelletizing.

Embodiment 2

[0028] The invention provides a hot-melt adhesive modified polyurethane resin hot-melt adhesive. Polyester polyol, isophor diisocyanate, triethylenediamine and hydroxyl silicone oil are placed at 100°C in the proportion of 21:14:3:9. React in a reaction kettle for 3 hours, cool to room temperature after the reaction is complete, and obtain a prepolymerized material; then mix the obtained prepolymerized material and N-methyldiethanolamine in a ratio of 1:7, stir and react under 1.5-2.5KPa and heat to 75°C, react for 3 hours, lower the temperature to 35°C, add glacial acetic acid to neutralize to pH 6, then add 48 parts of acetone to dilute, and finally vacuum the acetone solvent to obtain the modified polyurethane resin.

[0029] The present invention provides a modified polyurethane resin hot melt adhesive through improvement, which is composed of modified polyurethane resin, tackifier, paraffin, hydrogenated rosin glyceride, organic silicon, nitrate, anti-hydrolysis agent, ant...

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Abstract

The invention discloses a modified polyurethane resin hot melt adhesive. The modified polyurethane resin hot melt adhesive is prepared from modified polyurethane resin, a tackifier, paraffin, glycerolester of hydrogenated rosin, organic silicon, nitrate, an anti-hydrolysis agent, an antibacterial agent, a catalyst, diisocyanate, a chain extender and chemical fiber elements. The organic silicon isintroduced into the main chain of polyurethane, and hydrolysis of the modified polyurethane resin hot melt adhesive is effectively inhibited due to the existence of ethanol and addition of the anti-hydrolysis agent; the antibacterial agent is added, so the growth of moulds is effectively inhibited; and meanwhile, the phenomenon of adhesive failure is avoided after the modified polyurethane resinhot melt adhesive is soaked in water for 50 days.

Description

technical field [0001] The invention relates to the related field of polymer materials, in particular to a modified polyurethane resin hot melt adhesive. Background technique [0002] Hot melt adhesive 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. It is an environmentally friendly chemical product because the product itself is solid. It is convenient for packaging, transportation, storage, solvent-free, non-polluting, and non-toxic; and it is favored by the advantages of simple production process, high added value, high bonding strength, and fast speed; polyurethane is an emerging organic polymer material. Known as the "fifth largest plastic", it is widely used in many fields of the national economy because of its excellent performance. The product application fields involve light industry, chemical industry, electronics, textiles, med...

Claims

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Application Information

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IPC IPC(8): C09J175/06C09J11/08C09J11/06C09J11/04
CPCC08K2003/0806C08K2201/011C08L2205/035C09J11/04C09J11/06C09J11/08C09J175/06C08L79/00C08L23/06C08L93/04C08K3/08C08K5/05
Inventor 贺平
Owner 东莞市米儿塑胶原料有限公司