Low-temperature-deflection-resistant perforated gas-permeable polyvinyl chloride artificial leather and preparation method thereof
A technology of polyvinyl chloride and polyvinyl chloride resin, applied in the field of artificial leather, can solve the problems of insufficient ventilation comfort, poor flexural performance, poor wear resistance, etc., achieve excellent thermal stability and light stability, and good low temperature resistance , the effect of good mechanical strength
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Embodiment 1
[0032] The feel agent consists of the following components: 10g of paraffin wax, 5g of fatty acid, 2g of microcrystalline wax, 1.8g of sorbitan monooleate polyoxyethylene ether, 1g of sodium polyacrylate, and 0.4g of emulsified silicone oil.
[0033] Weigh the blowing agent component raw material of Example 1 weight part according to Table 1, and fully mix.
[0034] According to Table 2, we weigh the PVC foam layer raw material of Example 1 weight part, first add polyvinyl chloride resin and low-temperature resistant plasticizer in the mixing tank, mix well, add foaming agent, stir for 50min and mix well, let the slurry out, Obtain the PVC foam layer slurry, transfer to the hopper of the twin-roller extruder, the viscosity of the PVC foam layer slurry is 7000cps and is coated on the composite cotton base cloth, and the coating amount of coating is 15g / m Cloth speed 40m / min, kneading and calendering in a twin-roller mixing extruder, followed by temperature 140°C, vacuum degree ...
Embodiment 2
[0038] The hand feeling agent is the same as that in Example 1. According to Table 1, weigh 2 parts by weight of the foaming agent component raw materials in Example 1, and mix well.
[0039] Weigh the PVC foam layer raw material of Example 2 weight parts according to Table 2, first add polyvinyl chloride resin and low temperature resistant plasticizer in the mixing tank, mix evenly, add foaming agent, stir for 40min to mix evenly, let the pulp, Obtain the PVC foam layer slurry, transfer to the hopper of the twin-roller extruder, the viscosity of the PVC foam layer slurry is 15000cps and is coated on the composite cotton base cloth, and the coating amount of coating is 12g / m Cloth speed 30m / min, kneading and calendering in a twin-roller mixing extruder, followed by temperature 140°C, vacuum degree 0.13MPa, calendering time 3min; temperature 140°C, vacuum degree 0.15MPa, calendering time 6min; temperature 160°C, Vacuum degree 0.15MPa, calendering time 5min, after finishing, coo...
Embodiment 3
[0043] The hand feel agent is the same as that in Example 1. According to Table 1, weigh 3 parts by weight of the foaming agent component raw materials in Example 1, and mix well.
[0044] According to Table 2, weigh 3 parts by weight of the PVC foam layer raw material in Example 2, first add polyvinyl chloride resin and low-temperature resistant plasticizer in the mixing tank, mix well, add foaming agent, stir for 40min and mix well, let the slurry out, Obtain the PVC foam layer slurry, transfer to the hopper of the twin-roller extruder, the viscosity of the PVC foam layer slurry is 4000cps and is coated on the composite cotton base cloth, and the coating amount of coating is 20g / m Cloth speed 30m / min, kneading and calendering in a twin-roller mixing extruder, followed by temperature 130°C, vacuum degree 0.2MPa, calendering time 3min; temperature 145°C, vacuum degree 0.13MPa, calendering time 6min; temperature 160°C, Vacuum degree 0.2MPa, calendering time 6min, after finishin...
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