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Preparation method of environment-friendly high-stripping polyurethane/foam compositetype football leather

A polyurethane and high-stripping technology, applied in coatings, textiles and papermaking, etc., can solve the problems affecting the curing degree and strength of the adhesive layer resin, low surface energy of polyolefin foam, and limit the curing temperature, etc., to achieve excellent yellowing resistance Change performance, solve the effect of high temperature dimensional shrinkage, high peel strength

Active Publication Date: 2018-12-18
ANHUI ANLI MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Compared with the traditional TPU-based football leather, the polyolefin foam substrate has the advantages of light weight, low cost and good elasticity, which makes the polyurethane / foam composite football leather highly concerned by the market, but the polyolefin foam surface The energy is low, and at the same time, the size is easy to shrink at high temperature, which limits the curing temperature of the bonding layer and its bonding, thus affecting the curing degree and strength of the bonding layer resin, resulting in poor bonding performance of polyurethane and its composite. Therefore, a green and environmentally friendly, Polyurethane / foam composite football leather with high peel strength is especially necessary

Method used

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  • Preparation method of environment-friendly high-stripping polyurethane/foam compositetype football leather
  • Preparation method of environment-friendly high-stripping polyurethane/foam compositetype football leather
  • Preparation method of environment-friendly high-stripping polyurethane/foam compositetype football leather

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Experimental program
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Effect test

Embodiment 1

[0035] The preparation method of environmental protection high stripping polyurethane / foam composite football leather in the present embodiment is as follows:

[0036] 1. Water-based polyurethane surface layer slurry consists of 100 parts DL-2611, 2 parts of cross-linking agent XP-2547, 0.1 part of leveling agent Silok-9666, 0.2 part of water-based thickener RM-12W, 0.6 part of wear-resistant additive DC-51 and 10 parts of white paste, scrape it on the release paper, The gap between the covering cutter head is 20 wires, and it is heated and dried at 140°C to obtain the surface layer of polyurethane synthetic leather;

[0037] 2. The slurry for the closed aliphatic polyurethane intermediate layer is composed of 100 parts of FLY-50, 5 parts of isophorone diamine and 10 parts of white paste, which is scraped on the surface layer with a gap of 20 wires between the coating blades , heated and dried at 140°C to obtain the middle layer of polyurethane synthetic leather;

[0038]...

Embodiment 2

[0041] The preparation method of environmental protection high stripping polyurethane / foam composite football leather in the present embodiment is as follows:

[0042] 1. Water-based polyurethane surface layer slurry consists of 100 parts DLV / 1, 6 parts of crosslinking agent XP-2487 / 1, 0.5 parts of leveling agent Silok-354, 1 part of water-based thickener RM-12W, 0.2 parts of wear-resistant additive DC-51 and 20 parts of white paste, scrape on the release paper, coat The gap between the covering cutter head is 25 wires, and it is heated and dried at 120°C to obtain the surface layer of polyurethane synthetic leather;

[0043] 2. The closed aliphatic polyurethane intermediate layer slurry is composed of 100 parts of FLY-50, 10 parts of 4,4'-diaminodicyclohexylmethane and 20 parts of white slurry, which is scraped on the surface layer and coated with a knife The gap between the heads is 25 wires, and it is heated and dried at 130°C to obtain the middle layer of polyurethane ...

Embodiment 3

[0047]The preparation method of environmental protection high stripping polyurethane / foam composite football leather in the present embodiment is as follows:

[0048] 1. Water-based polyurethane surface layer slurry consists of 100 parts DL-2611, 10 parts of crosslinking agent XP-2547, 0.3 parts of leveling agent Silok-8000, 0.6 parts of water-based thickener RM-12W, 1 part of wear-resistant additive DC-51 and 15 parts of white paste, scraped on the release paper, coated with a knife The gap between the heads is 20 wires, and it is heated and dried at 100°C to obtain the surface layer of polyurethane synthetic leather;

[0049] 2. The slurry for the closed aliphatic polyurethane intermediate layer is composed of 100 parts of FLY-50, 7 parts of m-xylylenediamine and 15 parts of white slurry, which is scraped on the surface layer with a gap of 20 wires between the coating blades. Heat and dry at 150°C to obtain the middle layer of polyurethane synthetic leather;

[0050] 3....

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Abstract

The invention discloses a preparation method of environment-friendly high-stripping polyurethane / foam compositetype football leather. The preparation method comprises the following steps: firstly scrape coating a piece of releasetype paper with waterborne polyurethane surface layer slurry, drying, and obtaining a polyurethane synthetic leather surface layer; then scrapeblade coating the surface layer with closed aliphatic polyurethane intermediate layer slurry, drying, and obtaining a polyurethane synthetic leather intermediate layer; and pouring smearing solvent-free two-component polyurethane adhesive layer resin onto the surface of the intermediate layer, drying until a semi-dry state, laminating a foam elastic basic material, then continuing the reaction, finally stripping the synthetic leather and the release type paper, and obtaining the football leather. When the football leather is produced and processed, the football leather can be formed in one step, a leather sample does notneed to be cured with the release type paper, and the production efficiency is high; and a stripping strength of the football leather product is high (greater than or equal to 12N / 3cm, 150mm / min), the pattern shape is good, and the beating resistance is excellent (greater than 6000 times, GB / T 22892-2008).

Description

technical field [0001] The invention relates to a method for preparing an environment-friendly high-stripping polyurethane / foam composite football leather, belonging to the field of functional polyurethane synthetic leather. Background technique [0002] Traditional polyurethane synthetic leather is mainly divided into dry process and wet process according to the processing method, all of which use N,N-dimethylformamide (DMF), methyl ethyl ketone (MEK), toluene (TOL) as organic solvents, solid It is prepared by processing polyurethane resin with a content of 20-40%. With the increasingly stringent national environmental protection policy and the increasing awareness of environmental protection, polyurethane synthetic leather is gradually shifting from high pollution and high emission to low emission and zero pollution clean production. The development of green and environmentally friendly football leather is the general trend. [0003] Compared with the traditional TPU-base...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/00D06N3/14
CPCD06N3/0043D06N3/0097D06N3/145D06N3/146D06N3/148D06N2209/103D06N2209/16D06N2209/1664D06N2211/28D06N2213/02
Inventor 苏星许畅黄万里刘兵陈茂祥笪丽红黄春寿胡兆阳
Owner ANHUI ANLI MATERIAL TECH
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