Preparation method of PVC profile with strong aging resistance

A kind of profile, calcium carbonate technology

Pending Publication Date: 2021-04-16
HUZHOU SANLIN PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Existing profiles mainly include ordinary PVC profiles without co-extrusion coatings and PVC co-extrusion color profiles, but ordinary PVC profiles without co-extrusion coatings and PVC co-extrusion color profiles have poor UV resistance. Finally, after testing, it can no longer meet the requirements of use; and the surface finish of ordinary PVC profiles without co-extruded coatings and PVC co-extruded colored profiles is poor
In order to solve the problem that the PVC profile has poor aging resistance and cannot be used outdoors, resulting in limited product application, it is necessary for the present invention to study a preparation method for a strong aging-resistant PVC profile

Method used

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  • Preparation method of PVC profile with strong aging resistance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A preparation method for a strong anti-aging PVC profile, comprising the following steps:

[0019] A adopts polyvinyl chloride, calcium carbonate, stabilizer and processing aid ACR to mix in proportion to obtain base material;

[0020] B uses polyvinyl chloride, polymethyl methacrylate, aluminum silicate powder, silane coupling agent, modified calcium carbonate, stabilizer, ultraviolet absorber, antioxidant, stearic acid, glass fiber, processing aid ACR and The pigments are mixed in proportion to obtain the surface material;

[0021] C respectively heat and melt the premixed materials of the base material and the surface layer material at 185° C. to obtain the base layer molten material and the surface layer molten material respectively;

[0022] D Composite the base-layer molten material and the surface-layer molten material in a co-extrusion die, so that the surface-layer molten material is evenly pasted on the surface of the base-layer molten material to obtain a PV...

Embodiment 2

[0031] A preparation method for a strong anti-aging PVC profile, comprising the following steps:

[0032] A adopts polyvinyl chloride, calcium carbonate, stabilizer and processing aid ACR to mix in proportion to obtain base material;

[0033] B uses polyvinyl chloride, polymethyl methacrylate, aluminum silicate powder, silane coupling agent, modified calcium carbonate, stabilizer, ultraviolet absorber, antioxidant, stearic acid, glass fiber, processing aid ACR and The pigments are mixed in proportion to obtain the surface material;

[0034] C respectively heat and melt the premixed materials of the base material and the surface layer material at 195° C. to obtain the base layer molten material and the surface layer molten material respectively;

[0035] D Composite the base-layer molten material and the surface-layer molten material in a co-extrusion die, so that the surface-layer molten material is evenly pasted on the surface of the base-layer molten material to obtain a PV...

Embodiment 3

[0044] A preparation method for a strong anti-aging PVC profile, comprising the following steps:

[0045] A adopts polyvinyl chloride, calcium carbonate, stabilizer and processing aid ACR to mix in proportion to obtain base material;

[0046] B uses polyvinyl chloride, polymethyl methacrylate, aluminum silicate powder, silane coupling agent, modified calcium carbonate, stabilizer, ultraviolet absorber, antioxidant, stearic acid, glass fiber, processing aid ACR and The pigments are mixed in proportion to obtain the surface material;

[0047] C respectively heat and melt the premixed materials of the base material and the surface layer at 160° C. to obtain the base layer molten material and the surface layer molten material respectively;

[0048] D Composite the base-layer molten material and the surface-layer molten material in a co-extrusion die, so that the surface-layer molten material is evenly pasted on the surface of the base-layer molten material to obtain a PVC profile...

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Abstract

The invention discloses a preparation method of a PVC profile with strong aging resistance. The preparation method comprises the following steps: mixing polyvinyl chloride, calcium carbonate, a stabilizer and a processing aid ACR in proportion to obtain a base material; mixing polyvinyl chloride, polymethyl methacrylate, aluminum silicate powder, a silane coupling agent, modified calcium carbonate, a stabilizer, an ultraviolet light absorber, an antioxidant, stearic acid, glass fibers, a processing aid ACR and a pigment in proportion to obtain a surface layer material; and then respectively heating, melting and compounding the premix of the base layer material and the premix of the surface layer material, so that the surface layer molten material is uniformly attached to the surface of the base layer molten material to obtain the PVC profile. According to the PVC profile, the cage type polysilsesquioxane is adopted to modify calcium carbonate, so that the hydrophilic and oleophylic properties of calcium carbonate are remarkably improved, and the surface characteristics of calcium carbonate and the bonding characteristics of calcium carbonate and fibers can be improved; and the aluminum silicate powder and the glass fibers are combined with each other, so that the aging resistance of the PVC profile is effectively improved.

Description

technical field [0001] The invention relates to the technical field of PVC profiles, in particular to a preparation method of a strong aging-resistant PVC profile. Background technique [0002] Existing profiles mainly include ordinary PVC profiles without co-extrusion coatings and PVC co-extrusion color profiles, but ordinary PVC profiles without co-extrusion coatings and PVC co-extrusion color profiles have poor UV resistance. Finally, after testing, it can no longer meet the requirements of use; and the surface finish of ordinary PVC profiles without co-extruded coatings and PVC co-extruded colored profiles is poor. In order to solve the problem that the PVC profile has poor aging resistance and cannot be used outdoors, resulting in limited application of the product, it is necessary for the present invention to study a preparation method for a strong aging-resistant PVC profile. Contents of the invention [0003] Based on the technical problems existing in the backgro...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L33/04C08K3/26C08L33/12C08K13/06C08K3/34C08K9/08C08K7/14
Inventor 窦建春
Owner HUZHOU SANLIN PLASTIC
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