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A kind of preparation method of environment-friendly high-stripping polyurethane/foam composite football leather

A polyurethane and high-peeling technology, which is applied in coatings, textiles and papermaking, etc., can solve the problems of low surface energy of polyolefin foam, poor bonding performance, and affecting the curing degree and strength of the adhesive layer resin.

Active Publication Date: 2021-06-15
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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  • A kind of preparation method of environment-friendly high-stripping polyurethane/foam composite football leather
  • A kind of preparation method of environment-friendly high-stripping polyurethane/foam composite football leather
  • A kind of preparation method of environment-friendly high-stripping polyurethane/foam composite football leather

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Experimental program
Comparison scheme
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 method for preparing an environment-friendly high-stripping polyurethane / foam composite football leather. Firstly, the water-based polyurethane surface layer slurry is scraped and coated on a release paper, and the surface layer of polyurethane synthetic leather is obtained after drying; The closed aliphatic polyurethane intermediate layer slurry is scraped and coated on the surface layer, and after drying, the polyurethane synthetic leather intermediate layer is obtained; then the solvent-free two-component polyurethane adhesive layer resin is poured and coated on the surface of the intermediate layer, and dried until After the semi-dry state, the foam elastic substrate is pasted, and then the reaction is continued, and finally the synthetic leather and the release paper are peeled off to obtain football leather. During the production and processing of the football leather of the present invention, it can be processed and shaped at one time, and the leather sample does not need to be ripened with paper, and the production efficiency is high; the football leather product of the present invention has high peel strength (≥12N / 3cm, 150mm / min), good pattern setting, and anti-beating Good capacity (>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 Patents(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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