Ultrahigh-weather-resistance PVC (polyvinyl chloride) coextruded surface material and manufacturing method thereof

A surface layer material and weather resistance technology, applied in the field of composite materials, can solve the problems of high price, reduced surface wear resistance and rigidity, insufficient weather resistance, etc., and achieve the effect of low cost, simple manufacturing method and stable product quality.

Active Publication Date: 2015-09-09
DONGGUAN BETTO WOOD NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The manufacture of highly weather-resistant co-extrusion surface materials is the core part of co-extrusion technology. At present, the high-weather-resistance co-extrusion surface materials on the market are mainly ASA, which are mainly imported, and the price is high. The mainstream price in the market is More than 35,000 / ton, and the normal temperature hardness of ASA is about 80 degrees Shore, and the Vicat temperature is about 82 degrees Celsius. Using it in a high-temperature outdoor environment in summer will lead to a decrease in surface wear resistance and rigidity, and the high price will affect co-extruded products. The popularization and application are restricted, and the weather resistance of the conventional single PVC material as the co-extrusion surface material is not enough

Method used

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  • Ultrahigh-weather-resistance PVC (polyvinyl chloride) coextruded surface material and manufacturing method thereof

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Effect test

Embodiment 1

[0046] The ultra-high weather resistance PVC co-extruded surface layer material of this implementation comprises the mass fraction ratio of following materials:

[0047] PVC powder is 40 parts, and the PVC powder of the present embodiment is ethylene method PVC, and ethylene method PVC adopts the SG5 type PVC powder that degree of polymerization is 1000;

[0048] CPVC powder is 30 parts, and the CPVC powder of the present embodiment is the perchlorethylene of chlorine content ≥ 65%;

[0049] Calcium carbonate powder is 10 parts, and the calcium carbonate powder of the present embodiment is 1250 purpose ground calcium carbonate powders;

[0050] The stabilizing agent is 5 parts, and the stabilizing agent of the present embodiment is a calcium-zinc environment-friendly composite stabilizing agent;

[0051] The impact modifier is 4 parts, and the impact modifier of the present embodiment is a blend of ACR and CPE, wherein ACR accounts for 65%, and CPE accounts for 40%;

...

Embodiment 2

[0064] The ultra-high weather resistance PVC co-extruded surface layer material of this implementation comprises the mass fraction ratio of following materials:

[0065] PVC powder is 45 parts, and the PVC powder of the present embodiment is ethylene method PVC, and ethylene method PVC adopts the SG5 type PVC powder that degree of polymerization is 1000;

[0066] CPVC powder is 29 parts, and the CPVC powder of the present embodiment is the perchlorethylene of chlorine content ≥ 65%;

[0067] Calcium carbonate powder is 12 parts, and the calcium carbonate powder of the present embodiment is 1250 object heavy calcium carbonate powders;

[0068] Stabilizer is 0.5 part, and the stabilizer of the present embodiment is organotin stabilizer;

[0069] The impact modifier is 5 parts, and the impact modifier of the present embodiment is a blend of ACR and CPE, wherein ACR accounts for 65%, and CPE accounts for 40%;

[0070] The lubricant is 1 part. The lubricant in this embodim...

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Abstract

The invention an ultrahigh-weather-resistance PVC (polyvinyl chloride) coextruded surface material and a manufacturing method thereof, belonging to the field of composite materials. The ultrahigh-weather-resistance PVC coextruded surface material comprises the following components in parts by mass: 40-60 parts of PVC powder, 20-50 parts of CPVC (chlorinated polyvinyl chloride), 10-20 parts of calcium carbonate powder, 0.4-6 parts of stabilizer, 4-7 parts of impact modifier, 1-3 parts of lubricant, 0.4-0.9 part of anti-ultraviolet agent, 0.4-0.9 part of antioxidant, 0.5-1 part of antistatic agent, 3-6 parts of whisker and 3-6 parts of toner. By adjusting the formula, the material has comparable weather resistance with ASA (acrylonitrile-styrene-acrylate), and has higher surface hardness and Vicat softening point temperature. The material is low in cost, does not need to depend on import, and can obviously lower the production cost. The production cost of the product is only about one half of that of the ASA material. The product can be widely used in surface coextrusion of PVC door/window profiles, PVC wood-plastic profiles and PVC tiles to enhance the physical properties and colorfulness of the product.

Description

technical field [0001] The invention relates to the field of composite materials, in particular to an ultra-high weather resistance PVC co-extruded surface layer material and a manufacturing method thereof. Background technique [0002] Ordinary PVC plastic extrusion products are used outdoors. Factors such as four seasons, large temperature difference between day and night, sunlight, rain and dew, and microorganisms all affect the physical properties of the material, which manifests as discoloration, cracking, degradation, and pulverization of the product surface. Only by co-extruding a layer of ultra-high weather resistance surface material on the surface of the product can it play a protective role. [0003] With the promotion of the outdoor application of plastic instead of wood products, these plastic products are produced through extrusion processing. The traditional extrusion process is difficult to meet the requirements of outdoor applications in terms of cost and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L27/24C08L33/04C08L23/28C08L91/06C08L97/02C08K13/04C08K7/08C08K3/26C08K3/22C08K5/103B29C47/92B29C48/92
CPCB29C48/92B29C2948/92209C08L27/06C08L2205/02C08L2205/035C08L27/24C08L33/04C08L23/286C08L91/06C08L97/02C08K13/04C08K7/08C08K2003/265C08K3/22C08K5/103C08K5/09C08K5/098C08K5/1345
Inventor 盛光辉
Owner DONGGUAN BETTO WOOD NEW MATERIAL TECH CO LTD
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