Hard polyvinyl chloride foamed sheet

A technology of rigid polyvinyl chloride and foamed board, applied in the field of polyvinyl chloride processing, can solve the problems of high price, fragile, non-flame retardant, etc., and achieve the effect of low price, simple production process and strong practicability

Inactive Publication Date: 2012-05-23
SHANDONG BODO PLASTICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The price of wood and high-density boards used in the decoration industry is low, but the quality is poor; the price of solid wood composite boards is high and not flame-retardant; It is the development of panels that require higher cost performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 100 parts by weight of polyvinyl chloride resin powder with degree of polymerization of 1050, 3 parts by weight of composite lead stabilizer, 100 parts by weight of calcium carbonate, 30 parts by weight of acrylate modifier, 4 parts by weight of lubricant paraffin, 2 parts by weight Azodicarbonamide in parts by weight, modified sodium bicarbonate in 4 parts by weight, titanium dioxide in 2.0 parts by weight, after the raw materials are mixed evenly, enter the conical twin-screw extruder of 80 / 156 through hot and cold mixing, control the screw The speed is 17 rpm, the heating temperature of the screw barrel is 180°C, 175°C, 170°C, 160°C respectively, the screw oil temperature is 95°C, the mold temperature is 170°C, the die lip temperature is 140°C, and it is formed after skinning or free foaming 9mm plate with a density of 600kg / m 3 , The average hardness of the board surface hardness is 57 (Shore hardness).

Embodiment 2

[0030] According to embodiment 1, polyvinyl chloride polymerization degree is changed into the resin powder of 600, and institute's plate density 500kg / m 3 , The surface hardness of the plate is 48 (Shore hardness).

Embodiment 3

[0032] According to Example 1, the ratio of raw materials is changed to 100 parts by weight of polyvinyl chloride resin powder with a degree of polymerization of 800, 5 parts by weight of a composite lead stabilizer, and 3 parts by weight of an acrylate modifier, and the density of the board obtained is 430 kg / m 3 , the surface hardness of the plate is 45 (Shore hardness), but there are large bubbles in the cross section of the plate.

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PUM

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Abstract

The invention relates to a hard polyvinyl chloride foamed sheet which is characterized by comprising the following raw materials in parts by weight: 100 parts of polyvinyl chloride, 3-5 parts of stabilizing agent, 3-30 parts of acrylate processing modifier, 0-10 parts of impact modifier, 0-100 parts of filler, 0-2 parts of yellow foamer, 0-4 parts of white foamer, 0-4 parts of lubricating agent and 0-2 parts of pigment. The hard polyvinyl chloride foamed sheet is a hard low-density polyvinyl chloride foamed sheet which has the standard size sheet density not more than 600kg/m<3> so as to be widely applied to advertisement material, household, decoration and furniture manufacturing; and in addition, the hard polyvinyl chloride foamed sheet is low in cost, strong in practicability and simple in manufacturing process.

Description

technical field [0001] The invention belongs to the field of polyvinyl chloride processing, in particular to a rigid polyvinyl chloride foamed board. Background technique [0002] In recent years, with the development of the national economy, the rise of some emerging industries is impressive, such as the advertising industry, home decoration industry, etc. The materials used have also undergone different changes, such as decoration from early wood, high-density Board to the present solid wood composite board, the advertising industry from the earliest simple production to the current overall design, material selection from light box cloth, KT board, to PS board, acrylic blister board, etc., are all undergoing material upgrading and optimization. The price of wood and high-density boards used in the decoration industry is low, but the quality is poor; the price of solid wood composite boards is high and not flame-retardant; It is the development of panels that require highe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L33/08C08L33/10C08K13/02C08K3/26C08K3/34C08J9/10C08J9/08
Inventor 孙锋
Owner SHANDONG BODO PLASTICS CO LTD
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