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Waterborne wear-resistant and scraping-resistant surface treating agent for artificial leather and synthetic leather and preparation method

A technology for synthetic leather and artificial leather, which is applied in fiber treatment, textiles and papermaking, etc. It can solve the problems that cannot meet the requirements of ecological synthetic leather, achieve good antibacterial and mildew resistance, good antibacterial and mildew resistance, and improve wear resistance and scratch resistance Effect

Active Publication Date: 2016-02-03
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the traditional solvent resin-based synthetic leather manufacturing technology is unable to meet the requirements of ecological synthetic leather

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) Pretreatment of graphene wear-resistant agent:

[0031] Wet the graphene with propylene glycol methyl ether acetate, add 1% isopropanol by weight of the graphene, ultrasonically disperse for 1-2h, and set aside;

[0032] (2) Preparation of water-based surface treatment agent:

[0033] Take 50 parts of aliphatic matting water-based polyurethane with a modulus of 50Mpa and a solid content of 30% by weight fraction, 40 parts of water, 0.03 parts of graphene wear-resistant agent pretreated according to (1) (solid parts), 2.0 parts of matting powder, Mix 0.5 parts of silicone leveling agent, 1.0 parts of aziridine crosslinking agent, 2.0 parts of silicone handle improver, and 0.5 parts of water-based polyurethane thickener, react at 20-30 ° C for 2 hours, and adjust the viscosity to 1000 mPa.s Left and right, after grinding and filtering, the water-based surface treatment agent is obtained.

[0034] The surface treatment agent uses aliphatic water-based polyurethane wi...

Embodiment 2

[0036] (1) Pretreatment of graphene oxide wear-resistant agent:

[0037] Wet the graphene oxide with dimethylformamide, add KH560 with 5% by weight of graphene oxide, ultrasonically disperse for 1-2h, and set aside;

[0038] (2) Preparation of water-based surface treatment agent:

[0039] Take 60 parts of matting aromatic water-based polyurethane with a modulus of 80Mpa and a solid content of 35% by weight, 40 parts of water, 0.06 parts of graphene oxide wear-resistant agent pretreated by (1) (solid parts), and 6 parts of matting powder , 1.0 parts of silicone leveling agent, 1.5 parts of blocked water-based isocyanate crosslinking agent, 5.0 parts of hand feel improver, mixed evenly, 0.6 part of water-based polyurethane thickener, 0.4 part of water-based acrylic polymer thickener, mixed evenly, at 20 React at -30°C for 3 hours, adjust the viscosity to 2000mPa.s slurry, grind and filter to obtain a water-based surface treatment agent.

[0040] The surface treatment agent is ...

Embodiment 3

[0042] (1) Pretreatment of graphene and graphene oxide wear agents:

[0043] Wet the graphene with propylene glycol methyl ether acetate, add OP-10 of 1% by weight of graphene, ultrasonically disperse for 1-2h, and set aside; wet the graphene oxide with dimethylformamide, add graphene oxide weight Part of 5% KH550, ultrasonic dispersion for 1-2h, spare;

[0044] (2) Preparation of water-based surface treatment agent:

[0045] Take 55 parts of aliphatic medium-gloss water-based polyurethane with a modulus of 60Mpa and a solid content of 35% by weight fraction, 35 parts of water, 0.02 parts of graphene oxide wear-resistant agent pretreated by (1), and 0.3 parts of graphene (calculated by solid parts) ), 0.7 parts of silicone leveling agent, 1.2 parts of carbodiimide crosslinking agent, 3 parts of oil wax handle improver, 0.6 parts of water-based polyurethane thickener, mix well, react at 20-30 °C for 2-3 hours, adjust Viscosity to 1500mPa.s slurry, after grinding, filtering, to ...

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Abstract

The invention discloses a waterborne wear-resistant and scraping-resistant surface treating agent for artificial leather and synthetic leather. The waterborne wear-resistant and scraping-resistant surface treating agent is prepared from, by weight, 50-60 parts of waterborne polyurethane, 30-40 parts of water, 0.03-0.06 part of graphene or oxidized graphene modifier, 2-6 parts of extinction powder, 0.5-1 part of organosilicone flatting agent, 1-1.5 parts of organosilicone coupling agents, 2.0-5.0 parts of hand feeling modifier and 0.5-1.0 part of waterborne thickening agent. The wear resistance, scraping resistance static electricity resistance, ageing resistance, self-cleaning performance and other performance of artificial leather and synthetic leather coatings are greatly improved through the lubricating property, high transparency, electrical conductivity, bacterium resistance, mildew resistance, UV resistance and other characteristics of graphene, and therefore the grade and international market competitiveness of artificial leather and synthetic leather are improved. In addition, traditional solvent type polyurethane is replaced by waterborne polyurethane, and therefore organic solvent resources are saved, organic pollution is eliminated from sources, potential safety hazards are eliminated, and the employment environment of workers is improved. The VOC content in finished leather is lower than 5 mg / kg (leather), and the waterborne wear-resistant and scraping-resistant surface treating agent is ecological and environmentally friendly and conforms to the requirements for ecological synthetic leather of European Union.

Description

technical field [0001] The invention relates to a method for preparing an environment-friendly surface treatment agent for artificial leather and synthetic leather, belonging to the field of fine chemical manufacturing. Background technique [0002] my country is the largest producer and consumer of synthetic leather in the world. In 2014, my country's artificial leather and synthetic leather production accounted for 76% of the world's total, and the production of artificial leather and synthetic leather by enterprises above designated size reached 3.1426 million tons, totaling 6.28 billion square meters. [0003] In the manufacturing process of artificial leather and synthetic leather, there is a very important process called surface treatment, and the materials used are called surface treatment agents (ie surface treatment agents). The surface treatment agent is generally made of polyurethane and special additives, which mainly endow artificial leather and synthetic leath...

Claims

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Application Information

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IPC IPC(8): D06M15/564D06M11/74D06N3/14
Inventor 范浩军盖静陈意颜俊郭学方汪峰
Owner SICHUAN UNIV
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