Preparation method of high-strength and non-bending PVC wallboard

A high-strength, wallboard technology, applied in the field of decorative panels, can solve the problems of PVC board structural strength and bending performance not significant, complex production process, time-consuming and labor-intensive, etc., to enhance structural strength and bending resistance, reduce production processes, good dispersion effect

Inactive Publication Date: 2018-12-18
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 board can be made into PVC gusset board and PVC wallboard, but the structural strength and bending performance of PVC board are not obvious, and it is easy to crack when it is impacted.
Moreover, most of the existing PVC board production processes are: mixing of raw materials, banburying, open refining, cutting of fabrics and transparent materials, molding, hot pressing, laminating, tempering, standing, etc. The production process is too complicated ,Time-consuming

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) Preparation of PVC protective layer: Add 20g of styrene to absolute ethanol, heat to reflux state, keep stirring for 15min, add 25g of 2-trifluoromethacrylic acid, 12g of epichlorohydrin and 3g of lauroyl peroxide , reflux and stir for 2 hours, filter, wash the filter cake with deionized water and absolute ethanol to remove impurities, send it to a 100-110°C drying oven, dry to constant weight, then put it in a mixer, heat mix and stir to 110°C, Then put it into cold mixing and stirring, cool to 40°C, and then send it into a PVC twin-screw extruder for extrusion to obtain a PVC protective layer; the temperature of the first zone of the PVC twin-screw extruder is 90°C, the temperature of the second zone is 120°C, The temperature in the third zone is 160°C, and the screw speed is 450r / min;

[0028] (2) Preparation of PVC primer layer: 100g PVC5 type resin, 200g calcium powder, 5g calcium zinc stabilizer, 4g stearic acid, 1.3g PE wax, 4g nano-alumina, 2g titanate coupl...

Embodiment 2

[0032] (1) Preparation of PVC protective layer: Add 20g of styrene to absolute ethanol, heat to reflux state, keep stirring for 15min, add 25g of 2-trifluoromethacrylic acid, 12g of epichlorohydrin and 3g of lauroyl peroxide , reflux and stir for 2 hours, filter, wash the filter cake with deionized water and absolute ethanol to remove impurities, send it to a 100-110°C drying oven, dry to constant weight, then put it in a mixer, heat mix and stir to 110°C, Then put it into cold mixing and stirring, cool to 40°C, and then send it into a PVC twin-screw extruder for extrusion to obtain a PVC protective layer; the temperature of the first zone of the PVC twin-screw extruder is 90°C, the temperature of the second zone is 120°C, The temperature in the third zone is 160°C, and the screw speed is 450r / min;

[0033] (2) Preparation of PVC primer layer: 100g PVC5 type resin, 200g calcium powder, 5g calcium zinc stabilizer, 4g stearic acid, 1.3g PE wax, 4g nano-alumina, 2g titanate coupl...

Embodiment 3

[0057] Based on Example 1, a comparative example 1 using methacrylic acid as a raw material for the protective layer, a comparative example 2 without adding epichlorohydrin, a comparative example 3 without adding maleic acid-acrylic acid copolymer, and an impact-resistant MBS The modifier is the comparative example 4 of the modifier.

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PUM

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Abstract

The invention discloses a preparation method of a high-strength and non-bending PVC wallboard, and relates to the technical field of decorative panels. The preparation method of the PVC wallboard comprises: preparation of a PVC protective layer, preparation of a PVC bottom layer, and preparation of the PVC wallboard, modified acrylic resin synthesized by using styrene, 2-trifluoromethylacrylic acid and epichlorohydrin has stable structure and strong impact resistance, and a modifier synthesized by using hydroxypropyl acrylate and a maleic acid-acrylic acid copolymer as raw materials can significantly improve the defects of hardness and brittleness and low impact strength of PVC resin and improve the structure strength and bending resistance of the PVC resin. A composite layer is directly formed by rolling, the production process is reduced, the production efficiency is improved, the PVC board is more firm, and the PVC board is clearer and more beautiful in lines and embossing.

Description

Technical field: [0001] The invention relates to the technical field of decorative boards, in particular to a preparation method for high-strength, non-bending 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 board can be made into PVC gusset board and PVC wa...

Claims

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Application Information

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IPC IPC(8): B32B27/30B32B37/06B32B37/08B32B37/10C08L27/06C08L23/06C08K13/02C08K3/26C08K5/09C08K3/22C08K5/10B29C47/00
CPCB32B27/304B32B37/06B32B37/08B32B37/10C08K2003/2227C08K2003/265C08K2201/011C08L27/06C08L23/06C08K13/02C08K3/26C08K5/09C08K3/22C08K5/10
Inventor 缪岩和缪农
Owner BENGBU XINSHENG NEW MATERIAL TECH CO LTD
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