Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for preparing environment-friendly type wear-resisting weather-proof brightener used for artificial leather

An environmentally friendly and brightener technology, applied in polyurea/polyurethane coatings, coatings, etc., can solve problems such as poor wear resistance, low adhesion fastness of water-based polyurethane, and solvent pollution of the environment, to reduce and eliminate harmful substances , soft touch, high strength effect

Inactive Publication Date: 2009-11-18
江阴市诺科生物新材料科技有限公司
View PDF7 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It mainly has the following disadvantages: it contains a large amount of toxic solvents such as toluene and dimethylformamide, and a large amount of solvents discharged by it during use seriously pollute the environment
[0003] However, the water-based polyurethane prepared by the traditional method has low adhesion fastness and poor wear resistance, so it is difficult to meet the requirements of industrialization.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Add 70 grams of polybutylene adipate (PBA2000), 20 grams of TDI, and 5 grams of silicone oil 7162 (Shanghai Heying Chemical Co., Ltd.) into the flask, react at 85°C for 1.5 hours, cool to 70°C, and add 2.7 Grams of dimethylolpropionic acid (DMPA), 6 grams of diethylene glycol, keep stirring for 30 minutes, add 5 drops of dibutyl tin dilaurate, add 2 grams of KH550, add 50 grams of acetone, and keep warm at 60°C After 4.5 hours, cool to room temperature, add 2 g of triethylamine for neutralization, add 800 g of deionized water, stir, and remove the acetone to obtain an environmentally friendly wear-resistant and weather-resistant brightener for artificial leather.

Embodiment 2

[0016] Add 60 grams of polycaprolactone (PCL1000), 22 grams of IPDI, 5 grams of silicone oil 7162 (Shanghai Heying Chemical Co., Ltd.) into the flask, react at 85°C for 1.5 hours, cool to 75°C, and add 2.7 grams of dimethylol DMPA, 6 grams of diethylene glycol, keep stirring for 30 minutes, add 5 drops of dibutyl tin dilaurate, add 1.5 grams of KH560, add 55 grams of acetone, and keep at 60°C for 4.5 hours. At room temperature, add 2 grams of triethylamine to neutralize, add 800 grams of deionized water, stir, and remove the acetone to obtain an environmentally friendly wear-resistant and weather-resistant brightener for artificial leather.

Embodiment 3

[0018] Fifty grams of the water-based surface brightener for artificial leather prepared in the above examples was sprayed on the surface of PVC synthetic leather and dried into ink, the artificial leather was bright, wear-resistant, soft and smooth.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
tensile strengthaaaaaaaaaa
glossaaaaaaaaaa
Login to View More

Abstract

The invention relates to an environment-friendly wear-resistant and weather-resistant brightener for artificial leather. The brightener is mainly used as the surface coating of artificial leather materials. It is characterized in that: use diisocyanate, hydroxymethyl silicone oil and ester compounds to form a prepolymer whose end group is -NCO, then use hydrophilic monomers, coupling agents, diethylene glycol for chain extension reaction, and finally use After adjusting the pH value to neutral with the amine, deionized water is added and stirred to obtain an environment-friendly wear-resistant and weather-resistant brightener for artificial leather. The brightener is high strength and soft to the touch. Another feature of the present invention is that there is no harmful solvent volatilization during the curing process of spray coating and scraping coating. It fully complies with the technical requirements of leather environmental protection.

Description

Technical field [0001] The invention relates to a preparation method of an environment-friendly wear-resistant and weather-resistant brightener for artificial leather. The brightener is mainly used as a surface coating of artificial leather materials. It belongs to the technical field of chemical additives. technical background [0002] Before the present invention was made, the brightener currently used for the surface coating of artificial leather materials was a solvent-based polyurethane glue product. It mainly has the following shortcomings: it contains a large amount of toxic solvents such as toluene and dimethylformamide, and the large amount of solvents discharged during use seriously pollute the environment. As countries around the world pay more and more attention to environmental protection requirements and increasingly stringent environmental regulations, highly polluting solvent products are gradually being replaced by water-based cleaning products. [0003] However,...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/04C09D5/00
Inventor 华明扬
Owner 江阴市诺科生物新材料科技有限公司