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Surface treating agent for synthetic leather and preparation method thereof

A surface treatment agent and synthetic leather technology, which is applied in the field of synthetic leather, can solve the problems of no hand feeling and scratch resistance, and achieve the effect of not obvious crystal transparency, good hydrolysis resistance and wear resistance, and low equipment dependence

Inactive Publication Date: 2019-08-16
江苏多森新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

By adding modified wax emulsion and water-based amino silicone oil, the surface-treated synthetic leather has comprehensive properties such as skin rejuvenation, aging resistance, and hydrolysis resistance, but it does not have the characteristics of dry hand feeling and scratch resistance after treatment.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A surface treatment agent for synthetic leather, comprising the following components by weight: 10 parts of polyethylene glycol monoallyl ether modified hyperbranched polysiloxane, 30 parts of acrylic acid modified waterborne polyurethane, 6-( 1'-tert-butyldimethylsiloxyethyl)-3-(2"-tetrahydrofuryl)-7-oxo-4-thio-1-azabicyclo[3.2.0]hept-2-ene- 2 parts of allyl 2-carboxylate, 2 parts of 2-trimethylsiloxy-1,1,1,5,5,5-hexafluoropent-2-en-4-one, dodecylbenzene 3 parts of sodium sulfonate, 0.2 parts of azodiisopropyl imidazoline hydrochloride, 1 part of acrylic leveling agent, 1 part of titanium dioxide matting agent, 40 parts of deionized water.

[0028] The preparation method of the polyethylene glycol monoallyl ether modified hyperbranched polysiloxane comprises the following steps: adding 1 kg of hyperbranched polysiloxane and 1.5 kg of polyethylene glycol monoallyl ether to tetrahydrofuran 6kg, add 0.002kg of platinum carbon catalyst to it, stir and react at 40°C for 3 ...

Embodiment 2

[0032] A surface treatment agent for synthetic leather, comprising the following components by weight: 12 parts of polyethylene glycol monoallyl ether modified hyperbranched polysiloxane, 32 parts of acrylic acid modified waterborne polyurethane, 6-( 1'-tert-butyldimethylsiloxyethyl)-3-(2"-tetrahydrofuryl)-7-oxo-4-thio-1-azabicyclo[3.2.0]hept-2-ene- 3 parts of allyl 2-carboxylate, 3 parts of 2-trimethylsiloxy-1,1,1,5,5,5-hexafluoropent-2-en-4-one, polyoxypropylene polyoxy 4 parts of ethylene glyceryl ether, 0.25 parts of potassium persulfate, 1.5 parts of fluorine leveling agent, 1.5 parts of silica matting agent, 42 parts of deionized water.

[0033] The preparation method of the polyethylene glycol monoallyl ether modified hyperbranched polysiloxane comprises the following steps: adding 1 kg of hyperbranched polysiloxane and 1.6 kg of polyethylene glycol monoallyl ether to iso Add 0.0021 kg of platinum carbon catalyst to 7 kg of propanol, stir and react at 43°C for 3.5 hour...

Embodiment 3

[0037] A surface treatment agent for synthetic leather, comprising the following components by weight: 15 parts of polyethylene glycol monoallyl ether modified hyperbranched polysiloxane, 35 parts of acrylic acid modified waterborne polyurethane, 6-( 1'-tert-butyldimethylsiloxyethyl)-3-(2"-tetrahydrofuryl)-7-oxo-4-thio-1-azabicyclo[3.2.0]hept-2-ene- 3.5 parts of allyl 2-carboxylate, 3.5 parts of 2-trimethylsiloxy-1,1,1,5,5,5-hexafluoropent-2-en-4-one, nonylphenol polyoxygen 4.5 parts of vinyl ether, 0.3 parts of sodium persulfate, 2 parts of 1060 leveling agent, 2 parts of titanium dioxide matting agent, 43 parts of deionized water.

[0038] The preparation method of the polyethylene glycol monoallyl ether modified hyperbranched polysiloxane comprises the following steps: adding 1 kg of hyperbranched polysiloxane and 1.7 kg of polyethylene glycol monoallyl ether to acetone Add 0.0022kg of platinum carbon catalyst to it, stir and react at 50°C for 4 hours, remove the platinum ...

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PUM

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Abstract

The invention discloses a surface treating agent for synthetic leather. The composition comprises the following components in parts by weight: 10-20 parts of polyethylene glycol monoallyl ether modified hyperbranched polysiloxane, 30-40 parts of acrylic acid modified waterborne polyurethane, 6-(1'-tert-butyldimethylsiloxyethyl)-3-(2"-tetrahydrofuryl)-7-oxo-4-thio-1-azabicyclo[3.2.0]heptyl-2-ene-2-allyl carboxylate, 2-5 parts of 2-trimethylsiloxy-1,1,5,5,5-hexafluoropentyl-2-ene-4-one, 3-6 parts of an emulsifier, 0.2-0.4 part of an initiator, 1-3 parts of a flatting agent, 1-3 parts of a delustering agent and 40-50 parts of deionized water. The invention also discloses a preparation method and a use method of the surface treatment agent for the synthetic leather. The surface treatment agentis remarkable in surface treatment effect, excellent in comprehensive performance, good in water resistance, solvent resistance, hydrolysis resistance and wear resistance, high in adhesiveness and good in permeability and leveling property. And the synthetic leather subjected to surface treatment is smoother and softer in hand feeling.

Description

technical field [0001] The invention relates to the technical field of synthetic leather, in particular to a surface treatment agent for synthetic leather and a preparation method thereof. Background technique [0002] With the development of the economy and the improvement of living standards, people's demand for leather is increasing, and their quality requirements are also getting higher and higher. The resources of traditional natural leather are limited, and the production process will produce a lot of pollution, which can no longer meet the market demand. Synthetic leather is a composite material that simulates the structure and performance of natural leather and can be used as a substitute for natural leather. Synthetic leather usually uses non-woven fabric to simulate the mesh layer, and microporous polyurethane coating to simulate the grain layer. The front and back of the obtained synthetic leather are very similar to leather, and have a certain degree of air perme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/14C09D183/12C09D7/42C09D7/63
CPCC08K2003/2241C09D175/14C09D7/42C09D7/63C08L83/12C08K3/22C08K5/42
Inventor 朱建余黄风
Owner 江苏多森新材料科技有限公司
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