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Modified polyurethane adhesive, composite waterproof adhesive strip comprising modified polyurethane adhesive, and preparation method and application thereof

A polyurethane adhesive, polyurethane technology, applied in polyurea/polyurethane adhesives, adhesives, polymer adhesive additives, etc., can solve the problem of not widely adapting to windproof bonding strength, waterproof requirements, low cost requirements, breathable and moisture permeable materials Low strength, low bonding strength and other problems, to achieve good washing resistance and moisture permeability, good elasticity, high bonding strength effect

Active Publication Date: 2019-05-24
GUANGDONG YETOM NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent No. CN 108641662 A discloses a low-softening point waterproof and moisture-permeable TPU hot melt adhesive and its preparation method. The low-softening point waterproof and moisture-permeable TPU hot-melt adhesive comprises the following components in parts by weight: polyol 20-70 parts of A, 20-70 parts of polyol B, 10-28 parts of diisocyanate, 2-8 parts of chain extender, 0-2.5 parts of monohydric alcohol and 0-3 parts of auxiliary agent. Adhesive has waterproof and moisture-permeable properties, but the strength of breathable and moisture-permeable materials is generally small, the bonding strength is not high, and the cost is high. low cost requirements
[0005] Therefore, it is necessary to study a modified polyurethane adhesive with good adhesion, water resistance and moisture permeability to solve the problems of windproof and waterproof clothing that are difficult to bond and not waterproof

Method used

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  • Modified polyurethane adhesive, composite waterproof adhesive strip comprising modified polyurethane adhesive, and preparation method and application thereof
  • Modified polyurethane adhesive, composite waterproof adhesive strip comprising modified polyurethane adhesive, and preparation method and application thereof
  • Modified polyurethane adhesive, composite waterproof adhesive strip comprising modified polyurethane adhesive, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] 40 parts of polyester polyurethane with hydroxyl group (melt mass flow rate is 15g / 10min, melt viscosity is 6000mPa·s), 60 parts of polyether polyurethane particles with carboxyl group (melt mass flow rate is 5g / 10min 10 minutes, melt viscosity is 10000mPa·s), 10 parts of PES particles (melt mass flow rate is 10g / 10 minutes, melt viscosity is 8000mPa·s), 2 parts of polycarbodiimide, 2 parts of phenolic sealant End-blocking isocyanate (unblocking temperature above 140°C), 0.3 parts of antioxidant 1010 and 1 part of coupling agent 3-aminopropyltriethoxysilane (KH-550) were mixed uniformly in a high-speed disperser in advance, and then The tape casting machine is extruded and cast into a 0.05mm thick modified polyurethane adhesive coated on a TPU film (polyester polyurethane, the melt mass flow rate is 5g / 10 minutes, the melt viscosity is 20000mPa s, and the thickness is 0.05 mm, water pressure resistance greater than 10000mmH 2 (0 / 2min) is thermally compounded to make a co...

Embodiment 2

[0047] 35 parts of polyester polyurethane particles with hydroxyl groups (melt mass flow rate is 20g / 10min, melt viscosity is 10000mPa·s), 65 parts of polyether polyurethane particles with amino groups (melt mass flow rate is 10g / 10min, melt viscosity is 15000mPa·s), 8 parts of PES particles (melt mass flow rate is 15g / 10min, melt viscosity is 10000mPa·s), 3 parts of polycarbodiimide, 2 parts of amide sealant Blocked isocyanate (unblocking temperature above 150°C), 0.2 parts of antioxidant 1076, 1 part of coupling agent 3-aminopropyltriethoxysilane (KH-550) and 1 part of coupling agent γ-aminoethyl Aminopropyltrimethoxysilane (KH-792) is pre-mixed uniformly in a high-speed disperser, extruded and cast into a 0.05mm thick modified polyurethane adhesive coated on a TPU film (polyether polyurethane , the melt mass flow rate is 10g / 10min, the melt viscosity is 15000mPa·s, the thickness is 0.05mm, and the water pressure resistance is greater than 10000mmH 2 (0 / 2min) is thermally ...

Embodiment 3

[0049] 20 parts of polyester polyurethane particles with hydroxyl group (melt mass flow rate is 20g / 10min, melt viscosity is 15000mPa·s), 20 parts of polyether polyurethane particles with carboxyl group (melt mass flow rate is 15g / 10 minutes, melt viscosity is 8000mPa s), 70 parts of polyether polyurethane particles with amino groups (melt mass flow rate is 15g / 10 minutes, melt viscosity is 18000mPa s), 12 parts of PES particles (melt Body mass flow rate of 30g / 10min, melt viscosity of 8000mPa s), 2.5 parts of polycarbodiimide, 4 parts of phenolic blocked isocyanate (unblocking temperature above 140°C), 0.2 parts of antioxidant 1076, 0.1 part of antioxidant 1010, 1 part of coupling agent γ-glycidyl etheroxypropyl trimethoxysilane (KH-560) and 1.5 parts of hydroxysilane oligomer (6650) are pre-mixed in a high-speed disperser , extruded and casted into a 0.05mm thick modified polyurethane adhesive coated on TPU film (polyester polyurethane, melt mass flow rate is 10g / 10min, mel...

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Abstract

The invention discloses a modified polyurethane adhesive, a composite waterproof adhesive strip comprising the modified polyurethane adhesive, a preparation method and an application thereof; the modified polyurethane adhesive is prepared from the following components in parts by weight: 80-120 parts of TPU particles, 8-30 parts of PES particles, 0.5-3 parts of polycarbodiimide, 0.5-5 parts of closed crosslinking agent, 0.5-5 parts of coupling agent and 0.1-1 part of antioxidant. The modified polyurethane adhesive is extruded by a casting machine and thermally compounded on one side of the TPUfilm to obtain the composite waterproof adhesive strip, and the composite waterproof adhesive strip is soft, good in elasticity, good in water washing resistance, dry cleaning performance and water pressure resistance, large in bonding strength to coatings such as TPE, hydrophilic PU, TPFE and the like of windproof and waterproof clothes; the composite waterproof adhesive strip is not capable offalling off at the edges, so that the composite waterproof adhesive strip can be applied to outdoor sports clothes, particularly windproof and waterproof clothes, and has a good application prospect.

Description

technical field [0001] The invention belongs to the field of polymer waterproofing, and specifically relates to a modified polyurethane adhesive, a composite waterproof sticker including the modified polyurethane adhesive, a preparation method and application thereof. Background technique [0002] With the improvement of people's living standards and their concern for their own health, people yearn for and pursue a higher quality of life. Outdoor sports are becoming more and more popular. Windproof and waterproof clothing with functions of windproof, breathable, moisture permeable and warm are favored by people and are deeply loved. Consumer favorite. [0003] In the prior art, there are usually two ways to manufacture windproof and waterproof clothing: one is to sew the fabrics of windproof and waterproof clothing together through a sewing machine or similar sewing equipment without glue strips. This type of clothing is windproof and waterproof. The waterproof effect is no...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/08C09J175/06C09J181/06C09J11/08C09J11/06C09J7/25C09J7/30
Inventor 梁坤焕梁锋陈伯兴
Owner GUANGDONG YETOM NEW MATERIALS CO LTD
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