Preparation method of environment-friendly silica gel synthetic leather

A synthetic leather and environmentally friendly technology, applied in the field of synthetic leather, can solve the problems of poor flexibility, wear resistance and softness, and achieve the effects of good softness, improved dirt resistance, and accelerated fusion

Active Publication Date: 2019-09-27
FENGYANG JIASONG NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a preparation method of environment-friendly silicone synthetic leather, which solves the problems of poor flex resistance, abrasion resistance and softness of traditional silicone synthetic leather

Method used

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  • Preparation method of environment-friendly silica gel synthetic leather
  • Preparation method of environment-friendly silica gel synthetic leather

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Experimental program
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Effect test

Embodiment 1

[0024] A kind of preparation method of environment-friendly type silica gel synthetic leather, the step comprises

[0025] Step 1. Prepare the first slurry. The raw materials for the first slurry include 20 parts of silicone rubber base glue, 6 parts of rosin resin, 1 part of nano-silica powder, 2 parts of nano-nylon powder, 2 parts of camellia oil, and 3 parts of thickening agent and 2 parts of coupling agent. Coat the first slurry on the release paper, and bake it at 70°C for 3 minutes to form a surface adhesive layer; then, use an aqueous solution of sodium alginate to repeat the hot-soaking and hot-pressing treatment for the surface adhesive layer three times: the first time: The hot-dipping temperature is 70°C, and the hot-dipping time is 6min; the hot-pressing temperature is 100°C, the hot-pressing pressure is 10MPa, and the hot-pressing time is 10min; Pressing temperature is 110°C, hot-pressing pressure is 12MPa, hot-pressing time is 13min; third time: hot-dipping temp...

Embodiment 2

[0030] A kind of preparation method of environment-friendly type silica gel synthetic leather, the step comprises

[0031] Step 1. Prepare the first slurry. The raw materials for the first slurry include 25 parts of silicone rubber base glue, 8 parts of rosin resin, 2 parts of nano-silica powder, 4 parts of nano-nylon powder, 3 parts of camellia oil, and 4 parts of thickening agent and 4 parts of coupling agent. Coat the first slurry on the release paper, and bake it at 80°C for 4 minutes to form a surface adhesive layer; then, use an aqueous solution of sodium alginate to repeat the hot-soaking and hot-pressing treatment on the surface adhesive layer three times: the first time: The hot-dipping temperature is 75°C, and the hot-dipping time is 7min; the hot-pressing temperature is 105°C, the hot-pressing pressure is 11MPa, and the hot-pressing time is 11min; Pressing temperature is 115°C, hot-pressing pressure is 13MPa, hot-pressing time is 14min; third time: hot-dipping temp...

Embodiment 3

[0036] A kind of preparation method of environment-friendly type silica gel synthetic leather, the step comprises

[0037] Step 1. Prepare the first slurry. The raw materials for the first slurry include 30 parts of silicone rubber base glue, 10 parts of rosin resin, 4 parts of nano silicon micropowder, 5 parts of nanometer nylon powder, 4 parts of camellia oil, and 5 parts of thickening agent and 6 parts of coupling agent. Coat the first slurry on the release paper, and bake it at 90°C for 5 minutes to form a surface adhesive layer; then, use an aqueous solution of sodium alginate to repeat the hot-soaking and hot-pressing treatment on the surface adhesive layer three times: the first time: The hot-dipping temperature is 80°C, and the hot-dipping time is 8min; the hot-pressing temperature is 110°C, the hot-pressing pressure is 12MPa, and the hot-pressing time is 12min; Pressing temperature is 120°C, hot-pressing pressure is 14MPa, hot-pressing time is 15min; third time: hot-...

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Abstract

The invention discloses a preparation method of an environment-friendly silica gel synthetic leather. The method comprises the steps that first pulp is prepared, the fist pulp is applied on release paper and dried to form a surface gel layer, the surface gel layer is repeatedly subjected to alternate treatment of hot dipping and hot pressing three times, and a layer of nano-silica filler is uniformly applied on the surface of the surface gel layer before each-time hot pressing; second pulp is prepared, the second pulp is applied on release paper and dried to form a bottom gel layer, and the bottom gel layer is subjected to steam treatment; base cloth is selected, the treated bottom gel layer and surface gel layer are separately transferred onto the base cloth through hot-pressing fitting and paper-leather separation in sequence, and the environment-friendly silica gel synthetic leather is prepared. The preparation method of the environment-friendly silica gel synthetic leather has the advantages that through the gradient hot dipping and hot pressing treatment and the process of covering the surface gel layer with the nano-silica filler, the prepared silica gel synthetic leather has stronger flex resistance and wear resistance; through the steam treatment, the main bottom gel layer of the silica gel synthetic leather has good softness, and the silica gel synthetic leather is environmentally friendly and free of pollution, and has a very wide application prospect.

Description

technical field [0001] The invention relates to the technical field of synthetic leather, in particular to a preparation method of environment-friendly silica gel synthetic leather. Background technique [0002] The mainstream synthetic leather in the market is a product formed by coating resin slurry such as PU and PVC on the base material. In recent years, silicone synthetic leather has appeared on the market, which is a composite material made of textiles as the base material, impregnated with silicone slurry and coated. Compared with the popular PU synthetic leather on the market, the synthetic leather made of silica gel has excellent characteristics such as environmental protection and non-hydrolysis, but its disadvantages are also obvious, such as poor flex resistance, poor abrasion resistance, and general softness, etc. Therefore, Improving the flexibility, abrasion resistance and softness of silicone synthetic leather is the key technology to expand the application ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/00D06N3/12
CPCD06N3/0011D06N3/0004D06N3/0036D06N3/0097D06N3/0077D06N3/12D06N3/0063D06N3/0061D06N2209/146D06N2209/1692D06N2209/1685D06N2209/103D06N2211/28D06N2213/03
Inventor 庄加松
Owner FENGYANG JIASONG NEW MATERIALS CO LTD
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