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PVC (polyvinyl chloride) board and production method thereof

A sheet and raw material technology, applied in the field of PVC sheets and production, can solve the problems of low sheet forming efficiency, high energy consumption, high material cost, etc., and achieve the effects of normal color, high screw holding force, and good fire resistance

Inactive Publication Date: 2015-05-06
梁伯行
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the literature disclosed above, the waste material accounts for a small percentage of the entire raw material, resulting in a high cost of the material, and in the manufacturing process, the raw material needs to be mixed at high temperature and then rapidly cooled to be extruded, and during the heating and cooling process, both It needs to consume a lot of energy, which makes the production cost high and the forming efficiency of the plate is low

Method used

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  • PVC (polyvinyl chloride) board and production method thereof
  • PVC (polyvinyl chloride) board and production method thereof
  • PVC (polyvinyl chloride) board and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) Add 1.15% stabilizer, 3.5% foam regulator, 0.15% yellow foam, 0.4% white foam, 0.05% PE wax, 0.1% OK60, 0.15% OA6, 0.5% CPE and 94% PVC waste are mixed evenly at 70°C.

[0027] (2) Feed the uniformly mixed raw materials directly into the extruder for foaming, then extrude through the extrusion die, control the temperature of the extruder to 170-190 °C, The temperature is 10-15°C.

[0028] (3) Cool and shape the molten material leaving the extrusion die to form a PVC sheet with smooth upper and lower surfaces.

[0029] (4) Trim and cut the PVC sheet.

[0030] The PVC sheet prepared by the above preparation method is tested, and the specific test process is as follows:

[0031] 1. Test the amount of formaldehyde released.

[0032] Test Results:

[0033]

[0034] Remarks: 1. N.D. = not detected; 2. "--" = no specification value;

[0035] 3. Formaldehyde emission (GB / T 18103): Grade A≤9mg / 100g Grade B>9~40mg / 100g

[0036]

[0037] 2. The test of Shore hardn...

Embodiment 2

[0074] (1) Add 1.4% stabilizer, 3.95% foam regulator, 0.3% yellow foam, 0.7% white foam, 0.25% PE wax, 0.4% OK60, 0.3% OA6, 1.7% MBS and 91% PVC waste are mixed evenly at 60-70°C.

[0075] (2) Feed the uniformly mixed raw materials directly into the extruder for foaming, then extrude through the extrusion die, control the temperature of the extruder to 170-190 °C, The temperature is 10-15°C.

[0076] (3) Cool and shape the molten material leaving the extrusion die to form a PVC sheet with smooth upper and lower surfaces.

[0077] (4) Trim and cut the PVC sheet.

[0078] The PVC sheet prepared by the above preparation method is tested, and the specific test process is as follows:

[0079] 1. Test the amount of formaldehyde released.

[0080] Test Results:

[0081]

[0082] Remarks: 1. N.D. = not detected; 2. "--" = no specification value;

[0083] 3. Formaldehyde emission (GB / T 18103): Grade A≤9mg / 100g Grade B>9~40mg / 100g

[0084]

[0085]

[0086] 2. The test o...

Embodiment 3

[0123] (1) Add 0.8% stabilizer, 4.5% foam regulator, 0.2% yellow foam, 0.5% white foam, 0.1% PE wax, 0.3% OK60, 0.2% OA6, 0.9% CPE and 92.5% PVC waste are mixed evenly at 60-70°C.

[0124] (2) Feed the uniformly mixed raw materials directly into the extruder for foaming, then extrude through the extrusion die, control the temperature of the extruder to 170-190 °C, The temperature is 10-15°C.

[0125] (3) Cool and shape the molten material leaving the extrusion die to form a PVC sheet with smooth upper and lower surfaces.

[0126] (4) Trim and cut the PVC sheet.

[0127] The PVC sheet prepared by the above preparation method is tested, and the specific test process is as follows:

[0128] 1. Test the amount of formaldehyde released.

[0129] Test Results:

[0130]

[0131] Remarks: 1. N.D. = not detected; 2. "--" = no specification value;

[0132] 3. Formaldehyde emission (GB / T 18103): Grade A≤9mg / 100g Grade B>9~40mg / 100g

[0133]

[0134]

[0135] 2. The test o...

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Abstract

The invention discloses a PVC (polyvinyl chloride) board and a production method thereof. The PVC board is prepared from 91%-94% of PVC waste, 0.8%-1.4% of stabilizing agent, 3.5%-4.5% of foaming regulator, 0.15-0.3% of yellow foam, 0.4%-0.7% of white foam, 0.05%-0.25% of PE (polyethylene) wax, 0.2%-0.4% of OK60, 0.15%-0.3% of OA6 and 0.5%-1.7% of CPE (chlorinated polyethylene) or MBS (methyl methacrylate-butadiene-styrene). The production method comprises the following steps: low-temperature mixing, extrusion and cooling setting. The PVC board produced by the method has the advantages of high hardness, favorable fire resistance, favorable high temperature resistance, low water content, high static bending strength, favorable bending properties, favorable screw holding performance and favorable compression strength.

Description

technical field [0001] The invention relates to a PVC board and a production method thereof. Background technique [0002] In the construction industry, the traditional formwork is basically wood formwork, but wood formwork is a loss of natural resources, and it is easy to rot, and the number of times of reuse is small, so it cannot be recycled again. Therefore, now wood formwork has been basically replaced by plastic. Template replaced. In the initial stage of plastic formwork research, new raw materials such as resins and additives were basically used, resulting in high material and manufacturing costs. Later, people began to study adding waste materials to additives to produce templates. [0003] For example, in the patent document with the application number 201310191688.1, the application date is 2013.5.22, and the application publication date is 2013.7.24, a composite plastic template and its preparation method are disclosed, and it is specifically recorded that the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L23/06C08L23/28C08L51/04C08K3/36C08J9/10C08J9/08
CPCC08L27/06C08J9/08C08J9/10C08J2203/02C08J2203/04C08J2327/06C08L2201/02C08L2201/08C08L2205/025C08L2205/035C08L2207/20C08L23/06C08L23/286C08K3/36C08L51/04
Inventor 梁伯行
Owner 梁伯行
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