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Waterborne polyurethane slurry for producing synthetic leather bass through wet method

A technology of polyurethane slurry and water-based polyurethane, which is applied in the field of synthetic leather processing, can solve problems such as poor water solubility, and achieve the effects of short curing time, expanding the scope of use, and similar texture and performance.

Inactive Publication Date: 2017-03-22
南平慧薇网知识产权营运有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the water solubility of polyurethane resin is poor, and it needs to be modified to produce water-based polyurethane, and the prepared water-based polyurethane must have excellent compatibility and blendability with other additives, so as to cooperate with other additives to obtain a product that meets the performance requirements. Synthetic Leather Bass

Method used

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  • Waterborne polyurethane slurry for producing synthetic leather bass through wet method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] (1) Add 5 parts of chlorinated polyethylene, 2 parts of C5 petroleum resin and 1 part of dipentaerythritol to 5 parts of hydrogenated rosin glycerides, heat to 120-125 ° C and mix for 30 minutes, then cool down naturally, until the temperature drops to After 30-35°C, heat again to 120-125°C and mix for 15 minutes to obtain material I;

[0024] (2) Add 3 parts of terpene resin, 2 parts of hydrogenated palm oil and 1 part of squash gum to 4 parts of polyvinyl alcohol resin, heat to 115-120 ° C and mix for 30 minutes, then add 0.5 parts of molecular sieve powder and 0.5 Part nanometer titanium dioxide, continue heat preservation and mix 10min, obtain material II;

[0025] (3) Add 4 parts of microcrystalline cellulose, 3 parts of activated clay and 0.5 part of tea seed powder to 200 parts of water, heat to reflux state and mix for 10 minutes, then add material I and material II, continue to reflux and mix for 15 minutes, then add 65 parts of water-based polyurethane resin ...

Embodiment 2

[0030] (1) Add 4 parts of chlorinated polyethylene, 2 parts of C5 petroleum resin and 1 part of dipentaerythritol to 7 parts of hydrogenated rosin glycerides, heat to 120-125 °C and mix for 30 minutes, then cool down naturally until the temperature drops to After 30-35°C, heat again to 120-125°C and mix for 15 minutes to obtain material I;

[0031] (2) Add 3 parts of terpene resin, 2 parts of hydrogenated palm oil and 1 part of squash gum to 5 parts of polyvinyl alcohol resin, heat to 115-120 ° C and mix for 30 minutes, then add 0.5 parts of molecular sieve powder and 1 Part nanometer titanium dioxide, continue heat preservation and mix 10min, obtain material II;

[0032](3) Add 5 parts of microcrystalline cellulose, 2 parts of activated clay and 1 part of tea seed powder to 200 parts of water, heat to reflux state and mix for 10 minutes, then add material I and material II, continue to reflux and mix for 15 minutes, then add 70 parts of water-based polyurethane resin and 8 p...

Embodiment 3

[0037] The water-based polyurethane slurry prepared in Example 1 and Example 2 was used to prepare a synthetic leather base by wet method, and the performance test of the prepared synthetic leather base was performed, and the results are shown in Table 1.

[0038] The performance test result of the made synthetic leather bass in table 1

[0039]

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PUM

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Abstract

The invention discloses waterborne polyurethane slurry for producing a synthetic leather bass through a wet method. The waterborne polyurethane slurry relates to the technical field of synthetic leather processing, and is prepared from the following raw materials in parts by weight: 60 to 70 parts of waterborne polyurethane resin, 5 to 10 parts of waterborne acrylic resin, 5 to 10 parts of hydrogenated ester gum, 4 to 8 parts of polyvinyl alcohol resin, 4 to 8 parts of chlorinated polyethylene, 3 to 6 parts of terpene resin, 3 to 6 parts of microcrystalline cellulose, 2 to 4 parts of C5 petroleum resin, 2 to 4 parts of hydrogenated palm oil, 2 to 4 parts of activated clay, 1 to 2 parts of dipentaerythritol, 1 to 2 parts of sesbania gum, 0.5 to 1 part of tea seed powder, 0.5 to 1 part of molecular sieve raw powder, 0.5 to 1 part of nanometer titanium dioxide, and 200 to 250 parts of water. The waterborne polyurethane slurry provided by the invention adopts the water as a solvent, so that the problems of environmental pollution and harm to human health existed by using an organic solvent are avoided; the curing time of an intumescent coating is short, no harmful gas escapes during a curing process, and the prepared synthetic leather bass and a solvent type synthetic leather bass have close textures and operational performance.

Description

[0001] Technical field: [0002] The invention relates to the technical field of synthetic leather processing, in particular to a water-based polyurethane slurry for synthetic leather bass wet production. [0003] Background technique: [0004] Traditional synthetic leather is mainly produced by wet method and dry method, but both use solvent-based polyurethane as the basis and use organic solvents, which not only pollute the environment, but also endanger the health of production workers. The polymer chain of water-based polyurethane can make the resin have multiple functions: water resistance, solvent resistance, abrasion resistance, scratch resistance, wrinkle resistance, moisture permeability, air permeability and hand feeling, all of which are better than those made of solvent-based resins. The synthetic leather is closer to real leather, and uses water as a solvent, which is environmentally friendly. However, the water solubility of polyurethane resin is poor, and it nee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/04C08L33/00C08L93/04C08L29/04C08L23/28C08K13/06C08K3/34C08K5/06C08K3/22C08K7/26
CPCC08L75/04C08K2201/011C08L2205/035C08L33/00C08L93/04C08L29/04C08L23/286C08K13/06C08K3/346C08K5/06C08K2003/2241C08K7/26
Inventor 黄小平
Owner 南平慧薇网知识产权营运有限公司
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