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PVC foamed wood-plastic composite material and manufacturing method thereof

A technology of wood-plastic composite materials and manufacturing methods, applied in the field of composite materials, can solve the problems of poor imitation wood effect, HDPE plastic does not have flame retardant performance, cannot be produced, etc.

Active Publication Date: 2015-08-05
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] Embodiment 1: Preparation of PVC wood-plastic composite material 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 parts of azo compound, 2 parts of foam regulator, 1.5 parts of composite stabilizer, 0.7 part of lubricant, large 0.5 parts of soybean oil, 2.5 parts of impact modifiers, and 0.5 parts of processing aids.

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

[0041] (1) Mixing raw materials, mixing can be divided into two stages of hot mixing and cold mixing, the first step - hot mixing, put various raw materials and toners in proportion to the high-speed mixer for hot mixing, fully mix 12-25 Minutes, so that the temperature of the material reaches 125-130 ° C, the second step - cold mixing, the hot mixed material is transported to the cold mixer for cold mixing, and the material is cooled under the cooling of the cooling water c...

Embodiment 2

[0043] Embodiment 2: Preparation of PVC wood-plastic composite profile

[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 foam regulator, 6 parts of composite stabilizer, 2.1 parts of lubricant, large 1.2 parts of soybean oil, 5.5 parts of impact modifier, and 3 parts of processing aid.

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

[0046] (1) Mixing raw materials, mixing can be divided into two stages of hot mixing and cold mixing, the first step - hot mixing, put various raw materials and toners in proportion to the high-speed mixer for hot mixing, fully mix 12-25 Minutes, so that the temperature of the material reaches 125-130 ° C, the second step - cold mixing, the hot mixed material is transported to the cold mixer for cold mixing, and the material is cooled under the cooling of the cooling water coil in the...

Embodiment 3

[0049] Embodiment 3: Preparation of PVC wood-plastic composite profile

[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 foam regulator, 4.5 parts of composite 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 comprises the following process steps:

[0052] (1) Mixing raw materials, mixing can be divided into two stages of hot mixing and cold mixing, the first step - hot mixing, put various raw materials and toners in proportion to the high-speed mixer for hot mixing, fully mixed for 22 minutes, Make the temperature of the material reach 128°C, the second step - cold mixing, the hot mixed material is transported to the cold mixer for cold mixing, the material is cooled under the cooling of the cooling water coil in the...

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Abstract

The invention discloses a PVC foamed wood-plastic composite material, which relates to the technical field of composite materials. It is made of the following raw materials in parts by weight: 20-70 parts of PVC resin powder, 0-55 parts of wood powder, 5-40 parts of calcium carbonate powder, 0.1-0.5 parts of sodium bicarbonate, azo compounds or hydrazine derivatives or amino 0.3-0.6 parts of urea compound or nitroso compound, 2-10 parts of foam regulator, 1.5-6 parts of composite stabilizer, 0.7-2.1 parts of lubricant, 0.5-1.2 parts of soybean oil, 2.5- 5.5 parts, 0.5-3 parts of processing aids. The PVC wood-plastic composite material of the invention has the advantages of strong chemical stability, high strength, acid and alkali corrosion resistance, water immersion resistance, 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 Patents(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