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Flame-retardant PVC (polyvinyl chloride) artificial leather and preparation process thereof

A preparation process, artificial leather technology, applied in textiles and papermaking, layered products, synthetic resin layered products, etc., can solve the problems of environmental pollution, strong surface hygroscopicity, high flame retardant effect, and achieve broad market development prospects, mechanical Excellent performance, improve the effect of flame retardant and smoke suppression

Inactive Publication Date: 2014-07-30
FOSHAN GAOMING JUNTENG PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The price of metal hydroxide flame retardant is low, and the effect of flame retardant and smoke suppression is good, but the filling amount is large, resulting in a significant decline in the mechanical properties of PVC
Antimony-based flame retardants and tin-based flame retardants have high flame retardant effect and small filling amount, but they cannot suppress smoke
Boron-based flame retardants and zinc-containing compound flame retardants have high flame retardant efficiency and good smoke suppression effect, but their compatibility with PVC substrates is poor, which will reduce the mechanical properties of PVC
Phosphorus flame retardants have good flame retardant effect, but the surface is highly hygroscopic and easy to deliquescence
[0006] Based on the above, the existing PVC artificial leather has a good flame-retardant effect when using a halogen-based flame retardant, but it will pollute the environment; when using a halogen-free flame retardant, the best flame-retardant and smoke-suppressing effect cannot be achieved, and the PVC will be reduced. Mechanical properties of artificial leather

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
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] First, weigh 100 parts of PVC resin powder, 40 parts of DOP plasticizer, 20 parts of halogen-free phosphate plasticizer, 5 parts of heat stabilizer, 10 parts of wollastonite, 40 parts of triisopropylphenyl phosphate, 10 parts Melamine phosphate, 20 parts of melamine cyanurate, 25 parts of antimony trioxide, 20 parts of zinc borate, 20 parts of active aluminum hydroxide, 5 parts of calcium carbonate, 5 parts of AC blowing agent.

[0030] Except AC foaming agent, the rest of the materials are directly put into the high-speed mixer and stirred for 360±60s to make the materials uniformly loose. Then transfer to the banquet room, ban the bottom material for 4.0±0.5min, ban the surface material for 3.8±0.5min, and add AC foaming agent within 30-40s before discharging. After the banbury is finished and the material is discharged, it is put into the open training machine, so that the material is initially plasticized. After the material is initially plasticized, it is extruded by...

Embodiment 2

[0032] First, weigh 100 parts of PVC resin powder, 30 parts of DOP plasticizer, 15 parts of halogen-free phosphate plasticizer, 4 parts of heat stabilizer, 10 parts of wollastonite, 30 parts of triisopropylphenyl phosphate, 10 parts Melamine phosphate, 25 parts of melamine cyanurate, 25 parts of antimony trioxide, 25 parts of zinc borate, 25 parts of active aluminum hydroxide, 3 parts of calcium carbonate, 3 parts of AC blowing agent.

[0033] Except AC foaming agent, the rest of the materials are directly put into the high-speed mixer and stirred for 220±50s to make the materials uniformly loose. Then transfer to the banbury room, ban the bottom material for 3.2±0.5min, ban the surface material for 3.0±0.5min, and add AC blowing agent within 30-40s before discharging. After the banbury is finished and the material is discharged, it is put into the open training machine, so that the material is initially plasticized. After the material is initially plasticized, it is extruded by...

Embodiment 3

[0035] First weigh 120 parts of PVC resin powder, 45 parts of DOP plasticizer, 15 parts of halogen-free phosphate plasticizer, 4 parts of heat stabilizer, 10 parts of wollastonite, 50 parts of triisopropylphenyl phosphate, and 10 parts Melamine phosphate, 20 parts of melamine cyanurate, 25 parts of antimony trioxide, 25 parts of zinc borate, 25 parts of activated aluminum hydroxide, 6 parts of calcium carbonate, 6 parts of AC blowing agent.

[0036] Except the AC foaming agent, the rest of the materials are directly put into the high-speed mixer and mixed for 300±60s to make the materials uniformly loose. Then transfer to the banquet room, ban the bottom material for 3.5±0.5min, ban the surface material for 3.5±0.5min, and put in AC foaming agent 30-40s before discharging. After the banbury is finished and the material is discharged, it is put into the open training machine, so that the material is initially plasticized. After the material is initially plasticized, it is extrude...

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
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PUM

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Abstract

The invention provides flame-retardant PVC (polyvinyl chloride) artificial leather and a preparation process thereof. The flame-retardant PVC artificial leather comprises the following components in parts by weight: 70-120 parts of PVC resin powder, 30-50 parts of DOP (dioctyl-phthalate) plasticizer, 15-25 parts of halogen-free phosphate plasticizer, 3-6 parts of heat stabilizer, 8-12 parts of wollastonite, 30-50 parts of isopropyl phenyl diphenyl phosphate, 8-12 parts of melamine phosphate, 15-25 parts of melamine cyanurate, 20-30 parts of antimonous oxide, 15-25 parts of zinc borate, 15-30 parts of activity aluminum hydroxide, 3-8 parts of calcium carbonate, 3-8 parts of AC (activated carbon) foaming agent. The preparation process of the flame-retardant PVC artificial leather is as follows: weighing materials, high-speed stirring, banburying, refining (initial plasticizing), extruding and forming, refining (strengthened plasticizing), four-roll rolling, adhering with fireproof cloth, PVC foaming, surface-treating and obtaining products. The flame-retardant PVC artificial leather disclosed by the invention is good in flame retardant performance.

Description

Technical field [0001] The invention relates to a PVC artificial leather, in particular to a flame-retardant PVC artificial leather and a preparation process thereof. Background technique [0002] PVC artificial leather is similar to natural leather, has the advantages of light texture, convenient processing, water resistance and abrasion resistance, and is widely used to cover the surface of furniture and automotive interior products. The chlorine content of PVC itself is as high as 56%, and the oxygen index (LOI) is as high as 45%-49%. However, plasticizers are added during the preparation of PVC artificial leather to reduce its oxygen index. PVC has poor thermal stability and decomposes products such as HCl, CO, and benzene at high temperatures, causing PVC to produce a large amount of smoke and corrosive gas in the fire, which seriously pollutes the environment and endangers people's lives and property. [0003] With the development of science and technology and the improveme...

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
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Application Information

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IPC IPC(8): C08L27/06C08K13/02C08K3/34C08K5/523C08K5/3492C08K3/22C08K3/38C08K3/26C08J9/10D06N3/06B32B27/02B32B27/12B32B27/30
Inventor 沈平曾铁球符文海
Owner FOSHAN GAOMING JUNTENG PLASTICS
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