Polyvinyl chloride slurry and a coating, scraping and foaming process thereof

A polyvinyl chloride and polyvinyl chloride paste tree technology, which is applied in textiles and papermaking, can solve the problems of insufficient foam thickness, low elasticity, poor surface effect, etc., and achieves uniform cell distribution, uniform foaming, and good quality. Effect

Inactive Publication Date: 2019-05-07
广东远华新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Ordinary PVC foam products currently on the market, because there is only one layer of sizing, scratching and foaming, the foaming products have insufficient foam thickness, insufficient weight, non-scratch resistance, non-wear resistance, and low elasticity. Scraping and foaming, if you want to increase the thickness to 8-10mm, the cells will be rough and uneven; if you want to increase the weight to 2000-3500 g / m2 by increasing the amount of sizing, the cells will be unevenly distributed and the surface effect will be poor; There is only one single color for one layer of scraping and foaming base material. If you want to increase the color, you can only do full-page printing on the surface, which will lead to VOC and odor environmental problems.

Method used

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  • Polyvinyl chloride slurry and a coating, scraping and foaming process thereof

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Experimental program
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Effect test

preparation example Construction

[0081] As a further embodiment, a preparation method for coating slurry includes:

[0082] Stirring step: Put the polyvinyl chloride paste resin powder and filler into the powder tank according to the proportion, start the powder mixer, and stir for 10 minutes to obtain a powder slurry for use;

[0083] Beating step: put the plasticizer, foaming agent and stabilizer into the beating barrel, stir and beat at 30Hz;

[0084] Mixing steps: Add powder slurry to the beating barrel while beating. After adding the powder slurry, adjust the stirring speed to 40Hz. After stirring for 10 minutes, add the toner, then adjust the stirring speed to 50Hz, and stir for 15 minutes. Minutes, add tackifier again, stir 10 minutes, obtain a coating slurry.

[0085] As a further embodiment, the preparation method of the second coating slurry comprises:

[0086] Stirring step: Put the polyvinyl chloride paste resin powder and filler into the powder tank according to the proportion, start the powder...

Embodiment 1

[0097] A sizing and scraping foaming process for polyvinyl chloride slurry, comprising:

[0098] Preparation steps: Hang the corresponding mesh cloth on the needle plate of the foaming machine, the speed of the foaming furnace is 6 m / min, and the foaming temperature of the five reaction zones in the foaming machine is set to 225 / 220 / 220 / 210 / 115°C;

[0099] First coating step: evenly coat the first coating slurry on the mesh through the slurry pan;

[0100] The second coating step: the second coating slurry is evenly coated on the first coating slurry, and the speed of the foaming furnace is increased to 12 m / min to obtain a foamed product;

[0101] Finishing steps: After the foamed product passes through five reaction zones, it is cooled by cooling rollers, and finally rolled and packaged at the end of the foaming furnace.

[0102] Wherein, a coating slurry is prepared from the following components in mass percentage:

[0103] PVC Paste Resin Powder 53.99%

[0104] Plasti...

Embodiment 2

[0127] A sizing and scraping foaming process for polyvinyl chloride slurry, comprising:

[0128] Preparation steps: Hang the corresponding mesh cloth on the needle plate of the foaming machine, the speed of the foaming furnace is 7 m / min, and the foaming temperature of the five reaction zones in the foaming machine is set to 225 / 220 / 220 / 210 / 115°C;

[0129] First coating step: evenly coat the first coating slurry on the mesh through the slurry pan;

[0130] Second coating step: then evenly coat the second coating slurry on the first coating slurry, and increase the speed of the foaming furnace to 16 m / min;

[0131] Three-coating step: uniformly coat the multi-coating slurry on the second-coating slurry to obtain a foamed product;

[0132] Finishing steps: After the foamed product passes through five reaction zones, it is cooled by cooling rollers, and finally rolled and packaged at the end of the foaming furnace.

[0133] Wherein, a coating slurry is prepared from the follo...

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Abstract

The invention discloses polyvinyl chloride slurry. The polyvinyl chloride slurry comprises primary coating slurry and secondary coating slurry, and the invention further provides a coating, scraping and foaming process of the polyvinyl chloride slurry. The coating, scraping and foaming slurry comprises the primary coating slurry and the secondary coating slurry, the screen cloth is coated with theprimary coating slurry, then the primary coating slurry is coated with the secondary coating slurry, and the obtained foaming product is uniform in foaming, uniform in foam hole distribution, environmentally friendly and good in quality.

Description

technical field [0001] The invention relates to the field of sizing, scraping and foaming, in particular to polyvinyl chloride slurry and a sizing, scraping and foaming process for the slurry. Background technique [0002] Ordinary PVC foam products currently on the market, because there is only one layer of sizing, scratching and foaming, the foaming products have insufficient foam thickness, insufficient weight, non-scratch resistance, non-wear resistance, and low elasticity. Scraping and foaming, if you want to increase the thickness to 8-10mm, the cells will be rough and uneven; if you want to increase the weight to 2000-3500 g / m2 by increasing the amount of sizing, the cells will be unevenly distributed and the surface effect will be poor; One layer of scraping and foaming base material has only one single color. If you want to increase the color, you can only do full-page printing on the surface, which will lead to VOC and odor environmental problems. Contents of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/18D06N3/06D06N3/00
Inventor 夏冠明李伟健
Owner 广东远华新材料股份有限公司
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