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Preparation method of high-weather-resistant PVC wallboard

A technology of weather resistance and wallboard, applied in the direction of coating, etc., can solve the problems of insignificant structural strength and weather resistance of PVC boards, affecting performance, and easy damage of PVC boards, so as to improve the modification effect, high production efficiency, Effect of improving mixing efficiency

Inactive Publication Date: 2018-11-30
BENGBU XINSHENG NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

PVC boards can be made into PVC gussets and PVC wallboards, but the structural strength and weather resistance of PVC boards are not significant. When exposed to harsh external environments such as cold and heat, corrosion, impact, etc., the PVC board itself is easily damaged and affects its quality. Performance

Method used

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  • Preparation method of high-weather-resistant PVC wallboard

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) The PVC wallboard is made up of the following raw materials: 100g PVC5 type resin, 200g calcium powder, 5g calcium zinc stabilizer, 4g stearic acid, 1.3gPE wax, 6g silica powder, 4g glass fiber, 2g titanate couple Joint agent, 6g modified montmorillonite, 8g modifier;

[0030] (2) Mix and grind the above-mentioned calcium powder, calcium-zinc stabilizer, silicon micropowder, and glass fiber, then stir with stearic acid and PE wax at 800-000r / min to obtain a dispersion, which is dried and pulverized get powder;

[0031] (3) Mix the above-mentioned PVC5 type resin, titanate coupling agent, modified montmorillonite, modifying agent and the powder in (2), after being extruded by a twin-screw extruder, first extrude through a die, After preliminary shaping, vacuumize the shaping die, water cooling and shaping, traction and cutting into semi-finished PVC wallboard; the temperature of the first zone of the twin-screw extruder is 80°C, the temperature of the second zone is...

Embodiment 2

[0038] (1) The PVC wallboard is made up of the following raw materials: 100g PVC5 type resin, 200g calcium powder, 5g calcium zinc stabilizer, 4g stearic acid, 1.3gPE wax, 6g silica powder, 4g glass fiber, 2g titanate couple Joint agent, 6g modified montmorillonite, 8g modifier;

[0039] (2) Mix and grind the above-mentioned calcium powder, calcium-zinc stabilizer, silicon micropowder, and glass fiber, then stir with stearic acid and PE wax at 800-000r / min to obtain a dispersion, which is dried and pulverized get powder;

[0040] (3) Mix the above-mentioned PVC5 type resin, titanate coupling agent, modified montmorillonite, modifying agent and the powder in (2), after being extruded by a twin-screw extruder, first extrude through a die, After preliminary shaping, vacuumize the shaping die, water cooling and shaping, traction and cutting into semi-finished PVC wallboard; the temperature of the first zone of the twin-screw extruder is 80°C, the temperature of the second zone is...

Embodiment 3

[0082] Based on Example 1, set up Comparative Example 1 without adding tetraethyl titanate, Comparative Example 2 without modifying montmorillonite, Comparative Example 3 without adding maleic acid-acrylic acid copolymer, using MBS for impact resistance Comparative example 4 of modifier.

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Abstract

The invention discloses a preparation method of a high-weather-resistant PVC wallboard, and relates to the technical field of decorative board materials. The PVC wallboard comprises the following rawmaterials: PVC5-type resin, calcium powder, a calcium zinc stabilizer, stearic acid, PE wax, silicon micro powder, reinforcing fiber, a titanate coupling agent, modified montmorillonite and a modifier, wherein serine is adopted to perform modification on the montmorillonite, so that the weather resistance of the PVC wallboard is improved obviously through the modified montmorillonite; and the disadvantages of hardness and brittleness of the PVC wallboard can be improved through the modifier which is produced through a reaction between hydroxypropyl acrylate and maleic acid-acrylic acid copolymer, and the weather resistance of the PVC wallboard is improved.

Description

Technical field: [0001] The invention relates to the technical field of decorative boards, in particular to a preparation method of high weather resistance PVC wall boards. Background technique: [0002] PVC is a white powder with an amorphous structure, the degree of branching is small, the relative density is about 1.4, the glass transition temperature is 77-90°C, it begins to decompose at about 170°C, and it has poor stability to light and heat. When exposed to sunlight, it will decompose to produce hydrogen chloride, and further autocatalyze the decomposition, causing discoloration and rapid decline in physical and mechanical properties. In practical applications, stabilizers must be added to improve the stability to heat and light. [0003] PVC board has many excellent characteristics, such as moisture-proof, mildew-proof, waterproof, wear-resistant, etc., and it is not easy to age and deform when used indoors. PVC boards can be made into PVC gussets and PVC wallboards...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L23/06C08L35/00C08K13/06C08K9/04C08K3/34C08K3/04C08K7/14C08J7/04
CPCC08J7/04C08J2327/06C08L27/06C08L2201/08C08L2205/03C08L23/06C08L35/00C08K13/06C08K9/04C08K3/346C08K3/04C08K7/14
Inventor 缪岩和缪农
Owner BENGBU XINSHENG NEW MATERIAL TECH CO LTD