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A kind of high-rigidity low-density PVC wood-plastic foam board and preparation method thereof

A wood-plastic foaming, low-density technology, applied in the field of wood-plastic materials, can solve the problems affecting the application range, low thermal deformation temperature, low rigidity, etc., and achieve the effect of beautiful appearance, high strength and high heat resistance.

Inactive Publication Date: 2016-06-22
SHENYANG ZHENGYI ENVIRONMENTAL PROTECTION MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a high-rigidity low-density PVC wood-plastic foam board and its preparation method, to solve the problem of low rigidity and low thermal deformation temperature of the wood-plastic foam board in the prior art, which affects its application range And other issues

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0087] In parts by weight, the formula of the high-rigidity and low-density PVC wood-plastic foam board of the present embodiment is composed as follows:

[0088] 100 parts of PVC resin (SG-8 type PVC resin);

[0089] 30 parts of PVC foaming regenerated grinding powder (40 mesh);

[0090] 20 parts of MS resin (powder, M content 50-80wt%, melt index MI 2-5);

[0091] Wollastonite fiber (powder, 200 mesh, particle aspect ratio 5) 10 parts;

[0092] 20 parts of light calcium carbonate (1000 mesh);

[0093] 20 parts of heavy calcium carbonate (1250 mesh);

[0094] 20 parts of wood flour (60 mesh);

[0095] Composite stabilizer commonly used for PVC (lead salt composite stabilizer or rare earth composite stabilizer) 6 parts;

[0096] PVC commonly used internal lubricant (lubricant 9696 or lubricant OA6) 1 part;

[0097] PVC common external lubricant (PE wax or lubricant AP or ZB-60) 1 part;

[0098] AC blowing agent 1.2 parts;

[0099] 1 part of NC foaming agent;

[0100] ...

Embodiment 2

[0123] The difference from Example 1 is that, in terms of parts by weight, the formulation of the high-rigidity and low-density PVC wood-plastic foam board in this example is as follows:

[0124] 100 parts of PVC resin (SG-8 type PVC resin);

[0125] 30 parts of PVC foaming regenerated grinding powder (40 mesh);

[0126] 20 parts of MS resin (powder, M content 50-80wt%, melt index MI 2-5);

[0127] Wollastonite fiber (powder, 200 mesh, particle aspect ratio 5) 30 parts;

[0128] 10 parts of light calcium carbonate (1000 mesh);

[0129] 10 parts of heavy calcium carbonate (1250 mesh);

[0130] 20 parts of wood flour (60 mesh);

[0131] Composite stabilizer commonly used for PVC (lead salt composite stabilizer or rare earth composite stabilizer) 6 parts;

[0132] PVC commonly used internal lubricant (lubricant 9696 or lubricant OA6) 1 part;

[0133] PVC common external lubricant (PE wax or lubricant AP or ZB-60) 1 part;

[0134] AC blowing agent 1.2 parts;

[0135] 1 par...

Embodiment 3

[0145] The difference from Example 1 is that, in terms of parts by weight, the formulation of the high-rigidity and low-density PVC wood-plastic foam board in this example is as follows:

[0146] 100 parts of PVC resin (SG-8 type PVC resin);

[0147] 30 parts of PVC foaming regenerated grinding powder (40 mesh);

[0148] 20 parts of MS resin (powder, M content 50-80wt%, melt index MI 2-5);

[0149] Wollastonite fiber (powder, 200 mesh, particle aspect ratio 5) 50 parts;

[0150] 5 parts of light calcium carbonate (1000 mesh);

[0151] 5 parts of heavy calcium carbonate (1250 mesh);

[0152] 20 parts of wood flour (60 mesh);

[0153] Composite stabilizer commonly used for PVC (lead salt composite stabilizer or rare earth composite stabilizer) 6 parts;

[0154] PVC commonly used internal lubricant (lubricant 9696 or lubricant OA6) 1 part;

[0155] PVC common external lubricant (PE wax or lubricant AP or ZB-60) 1 part;

[0156] AC blowing agent 1.2 parts;

[0157] 1 part ...

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Abstract

The invention relates to the field of wood-plastic materials, in particular to a high-rigidity and low-density PVC wood-plastic foam board and a preparation method thereof, which solves the problems of low rigidity, low thermal deformation temperature and problems of wood-plastic foam boards in the prior art. Affect its scope of application and other issues. A new type of wood-plastic blended material made of polymer materials by physical methods. The board uses polyvinyl chloride as the main material, wood powder, bamboo powder and other organic materials and other inorganic materials as fillers, and various additives are added. Extrusion foaming process produces wood-plastic foamed boards. The board has high strength, light weight, waterproof, beautiful appearance, and is environmentally friendly and non-toxic. It overcomes the disadvantages of surface painting, inconvenient operation and environmental pollution caused by the use of PVC foam boards in the past. The PVC wood-plastic foamed board of the present invention has high rigidity (that is, the flexural modulus of elasticity is close to wood), low density (the density is 0.45~0.75g / cm 3 ), high heat resistance (heat distortion temperature ≥ 80 ℃) and other characteristics.

Description

technical field [0001] The invention relates to the field of wood-plastic materials, in particular to a high-rigidity and low-density PVC wood-plastic foam board and a preparation method thereof. Background technique [0002] Wood-plastic material is a new type of composite material obtained by filling, reinforcing, modifying and blending waste wood fibers and plant fibers with thermoplastics. This kind of mixed modified material can be processed into profiles, plates or other products through a special single-screw extruder or twin-screw extruder with corresponding molds and auxiliary molding machines. [0003] Foamed panels made of polyvinyl chloride (PVC) are mainly used in the manufacture of advertising cabinets and bathroom cabinets. The equipment and technology were first imported from Europe, and the product standards quoted also refer to European standards. The density of the panels is relatively high. Polyvinyl chloride is a general-purpose thermoplastic with excel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/06C08L33/12C08L97/02C08K13/06C08K9/06C08K9/04C08K7/10C08K3/26C08J9/10B29C47/00
Inventor 王煜
Owner SHENYANG ZHENGYI ENVIRONMENTAL PROTECTION MATERIAL TECH CO LTD