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Preparation method of PVC artificial leather resistant to high and low temperatures and low in VOC

A high and low temperature resistant, artificial leather technology, applied in textiles and papermaking, can solve problems affecting leather flexibility, low flame retardant efficiency, and mechanical properties of polymer materials

Pending Publication Date: 2021-05-14
南通中奥车用新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the low flame retardant efficiency, the increased amount added to meet the flame retardant requirements has a greater impact on the mechanical properties of polymer materials
[0003] Ordinary fibers mostly have the disadvantages of brittleness and poor flexibility, which affect the flexibility of leather as a base

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0026] The invention provides a technical solution: a preparation method of PVC artificial leather with high and low temperature resistance and low VOC, comprising the following specific steps:

[0027] Step 1: adding the prepared flame retardant to the PVC matrix to obtain a composite polyvinyl chloride-mixture A with the flame retardant added;

[0028] Step 2: using a coupling agent to graft and cross-link the mixture A obtained in step 1 to obtain mixture B;

[0029] Step 3: Take bamboo fiber textiles, heat them with water and then calcinate them to obtain flexible carbon fibers;

[0030] Step 4: Place the flexible carbon fiber obtained in step 3 in tetraethyl orthosilicate and the mixture B obtained in step 2 in alcohol / water solution, add catalyst and dispersant to prepare PVC silane-based sol impregnated flexible carbon fiber, and place it in Heat treatment under nitrogen protection to obtain composite polyvinyl chloride based on flexible carbon fibers;

[0031] Step 5...

Embodiment 1

[0042] A preparation method of high and low temperature resistant PVC artificial leather with low VOC, comprising the following specific steps:

[0043] Step 1: adding the prepared flame retardant to the PVC matrix to obtain a composite polyvinyl chloride-mixture A with the flame retardant added;

[0044] Step 2: using a coupling agent to graft and cross-link the mixture A obtained in step 1 to obtain mixture B;

[0045] Step 3: Take bamboo fiber textiles, heat them with water and then calcinate them to obtain flexible carbon fibers;

[0046] Step 4: Place the flexible carbon fiber obtained in step 3 in tetraethyl orthosilicate and the mixture B obtained in step 2 in alcohol / water solution, add catalyst and dispersant to prepare PVC silane-based sol impregnated flexible carbon fiber, and place it in Heat treatment under nitrogen protection to obtain composite polyvinyl chloride based on flexible carbon fibers;

[0047] Step 5: Prepare fluorocarbon paint, and coat one side of...

Embodiment 2

[0058] A preparation method of high and low temperature resistant PVC artificial leather with low VOC, comprising the following specific steps:

[0059] Step 1: adding the prepared flame retardant to the PVC matrix to obtain a composite polyvinyl chloride-mixture A with the flame retardant added;

[0060] Step 2: using a coupling agent to graft and cross-link the mixture A obtained in step 1 to obtain mixture B;

[0061] Step 3: Take bamboo fiber textiles, heat them with water and then calcinate them to obtain flexible carbon fibers;

[0062] Step 4: Place the flexible carbon fiber obtained in step 3 in tetraethyl orthosilicate and the mixture B obtained in step 2 in alcohol / water solution, add catalyst and dispersant to prepare PVC silane-based sol impregnated flexible carbon fiber, and place it in Heat treatment under nitrogen protection to obtain composite polyvinyl chloride based on flexible carbon fibers;

[0063] Step 5: Prepare fluorocarbon paint, and coat one side of...

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Abstract

The invention discloses a preparation method of PVC artificial leather resistant to high and low temperatures and low in VOC. A flame retardant zinc stannate is modified by sodium alginate, then graphene is dispersed into sodium alginate-based zinc stannate, and the flame retardant effect is uniform; reduced graphene oxide and sodium alginate-based zinc stannate have a good synergistic effect, and sodium alginate gives full play to a bridging effect between the flame retardant zinc stannate and a PVC matrix; N-beta-aminoethyl-gamma-aminopropyl methyl dimethoxy silane is used as a silane coupling agent to graft and crosslink the composite polyvinyl chloride, and amino groups in sodium alginate and amino groups in the coupling agent have a competitive relationship, so that the agglomeration phenomenon of the matrix is avoided, and the dispersity is ensured while the linkability is ensured; and the preparation method comprises the following steps of preparing flexible carbon fibers from bamboo fibers, and putting a polyvinyl chloride compound coupled by ethyl orthosilicate and silane into an alcohol / water solution to prepare silane-based sol impregnated flexible carbon fibers; and carrying out heat treatment under the protection of nitrogen, wherein the surface of the flexible carbon fiber is coated with a Si-C-O structure, so that the flexibility of the leather is improved.

Description

technical field [0001] The invention relates to the technical field of leather, in particular to a preparation method of PVC artificial leather resistant to high and low temperature and low in VOC. Background technique [0002] Traditional inorganic flame retardants are widely used in PVC composite materials due to their wide source and low price. However, due to the low flame retardant efficiency, the increased amount added to meet the flame retardant requirements has a greater impact on the mechanical properties of polymer materials. [0003] Ordinary fibers mostly have the disadvantages of brittleness and poor flexibility, which affect the flexibility of leather as a substrate. Finding the right base material can improve the flexibility and damage resistance of the leather. [0004] Therefore, it is necessary to design a PVC artificial leather with high and low temperature resistance and low VOC, which has excellent mechanical properties and great flexibility. Content...

Claims

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Application Information

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IPC IPC(8): D06N3/18D06N3/04D06N3/06D06N3/00
CPCD06N3/0015D06N3/0059D06N3/0061D06N3/047D06N3/06D06N3/183D06N2201/087D06N2209/067D06N2211/28
Inventor 顾跃进
Owner 南通中奥车用新材料有限公司
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