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PVC foam wood/plastic composite material and manufacturing method thereof

A wood-plastic composite material and a manufacturing method technology, applied in the field of composite materials, can solve the problems of inability to produce, HDPE plastics do not have flame retardant properties, and high product density.

Active Publication Date: 2014-01-15
山东宜群木塑科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This manufacturing technology has the following disadvantages: 1. The product needs to be painted, which is not environmentally friendly for indoor use; 2. The product has a high density and high cost; 3. The surface of the product has no sense of wood texture, and the effect of imitating wood is poor; 4. The specifications of the product Size, subject to the size of the mold, longer wood-plastic profiles cannot be produced; 5. Wood-plastic profiles with too complex or hollow shapes cannot be produced due to processing technology and mold restrictions; 6. HDPE plastics do not have flame retardant properties , the products made of it cannot be flame retardant, and the scope of use is greatly restricted by this

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Example 1: Preparation of PVC wood-plastic composite profiles

[0039] Raw materials: 20 parts of PVC resin powder, 1 part of wood powder, 5 parts of calcium carbonate powder, 0.1 part of sodium bicarbonate, 0.3 part of azo compound, 2 parts of foaming regulator, 1.5 part of compound stabilizer, 0.7 part of lubricant, large 0.5 part of soybean oil, 2.5 part of impact modifier, 0.5 part of processing aid.

[0040] The manufacturing method includes the following process steps:

[0041] (1) Mixing the raw materials, the mixing can be divided into two stages: hot mixing and cold mixing. The first step is hot mixing. Put all kinds of raw materials and toners in a high-speed mixer in proportion for hot mixing, and mix them thoroughly for 12-25 The temperature of the material reaches 125-130 °C in the second step, the hot-mixed material is transported to the cold mixer for cold mixing, and the material is cooled by the cooling water coil in the cold mixer. When the temperatu...

Embodiment 2

[0043] Example 2: Preparation of PVC wood-plastic composite profiles

[0044] Raw materials: 70 parts of PVC resin powder, 55 parts of wood powder, 40 parts of calcium carbonate powder, 0.5 parts of sodium bicarbonate, 0.6 parts of azo compound, 10 parts of foaming regulator, 6 parts of compound stabilizer, 2.1 parts of lubricant, large 1.2 parts of soybean oil, 5.5 parts of impact modifier, and 3 parts of processing aids.

[0045] The manufacturing method includes the following process steps:

[0046] (1) Mixing the raw materials, the mixing can be divided into two stages: hot mixing and cold mixing. The first step is hot mixing. Put all kinds of raw materials and toners in a high-speed mixer in proportion for hot mixing, and mix them thoroughly for 12-25 The temperature of the material reaches 125-130 °C in the second step, the hot-mixed material is transported to the cold mixer for cold mixing, and the material is cooled by the cooling water coil in the cold mixer. When t...

Embodiment 3

[0049] Example 3: Preparation of PVC wood-plastic composite profiles

[0050] Raw materials: 52.9 parts of PVC resin powder, 18.2 parts of wood powder, 13.2 parts of calcium carbonate powder, 0.3 parts of sodium bicarbonate, 0.46 parts of azo compound, 6.2 parts of foaming regulator, 4.5 parts of compound stabilizer, 1.7 parts of lubricant, large 0.9 parts of soybean oil, 3.5 parts of impact modifier, and 1.5 parts of processing aid.

[0051] The manufacturing method includes the following process steps:

[0052] (1) Mixing the raw materials, the mixing can be divided into two stages: hot mixing and cold mixing. The first step is hot mixing. Put all kinds of raw materials and toners in a high-speed mixer in proportion for hot mixing, and mix them thoroughly for 22 minutes. Make the temperature of the material reach 128℃, the second step - cold mixing, the material after hot mixing is transported to the cold mixer for cold mixing, the material is cooled under the cooling of th...

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Abstract

The invention discloses a PVC foam wood / plastic composite material and relates to the technical field of composite materials. The PVC foam wood / plastic composite material is made from the following raw materials in parts by weight: 20-70 parts of PVC resin powder, 0-55 parts of wood flour, 5-40 parts of calcium carbonate powder, 0.1-0.5 part of sodium bicarbonate, 0.3-0.6 part of an azo-compound or hydrazine derivative, semicarbazide compound or nitroso-compound, 2-10 parts of a foaming regulator, 1.5-6 parts of a composite stabilizer, 0.7-2.1 parts of a lubricant, 0.5-1.2 part of soybean oil, 2.5-5.5 parts of an impact modifier, and 0.5-3 parts of a processing agent. The PVC foam wood / plastic composite material provided by the invention has the advantages of strong chemical stability, high strength, resistance to acid / alkaline corrosion, resistance to water seepage, flame retardancy and low cost.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a PVC foamed wood-plastic composite material. Background technique [0002] The existing manufacturing method of wood-plastic composite materials is to use HDPE as the main plastic material, mix various raw materials → granulate → extrude, put them in a mold and press them with a hydraulic press, and the formed products are finally manufactured by painting . This manufacturing technology has the following disadvantages: 1. The product needs to be painted, which is not environmentally friendly for indoor use; 2. The product has a high density and high cost; 3. The surface of the product has no sense of wood texture, and the effect of imitating wood is poor; 4. The specifications of the product Size, subject to the size of the mold, longer wood-plastic profiles cannot be produced; 5. Wood-plastic profiles with too complex or hollow shapes cannot be produced due to proc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L97/02C08K13/02C08K3/26C08J9/08C08J9/10B29C47/00B29B9/06B29B7/00
Inventor 刘光群
Owner 山东宜群木塑科技有限公司
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