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Preparation method of PVC (Polyvinyl Chloride) film for flex banner

A light box cloth and raw material preparation technology, applied in the field of plastic products, can solve the problems affecting the stretch resistance and fatigue resistance of PVC film, uneven dispersion, agglomeration stress, etc., to improve color uniformity, reasonable process settings, reduce The effect of stress concentration

Inactive Publication Date: 2017-09-26
浙江铭龙新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The PVC heat-shrinkable film obtained by the above-mentioned preparation method of the present invention has better transparency than ordinary PVC heat-shrinkable film, but only traditional single stirring is carried out between the raw material plasticization, and each component of the raw material The degree of dispersion is not uniform, and agglomeration is easy to cause stress concentration, which affects the tensile and fatigue resistance of PVC film

Method used

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  • Preparation method of PVC (Polyvinyl Chloride) film for flex banner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A preparation method of PVC film for light box cloth, comprising the steps of:

[0030] Raw material preparation: 60 parts of polyvinyl chloride resin, 50 parts of active nano-calcium carbonate, 8 parts of talcum powder, 25 parts of plasticizer, 3 parts of epoxy soybean oil, 3 parts of stabilizer, 1 part of active additive, 5 parts of auxiliary agent, 2.5 parts of colorant;

[0031] Pre-stirring treatment: put plasticizer, polyvinyl chloride resin and active nano-calcium carbonate in sequence in a kneader for high-temperature kneading to obtain a base material, wherein the kneading temperature is 100°C, and the kneading time is 30 minutes;

[0032] Pre-dispersion treatment: Put the base material obtained in the pre-stirring treatment step into the three-roll mill for two grinding and dispersion to obtain the dispersion base material;

[0033] High-speed stirring and mixing: Put the dispersed base material obtained in the pre-dispersion treatment step, epoxy soybean oil...

Embodiment 2

[0044] A preparation method of PVC film for light box cloth, comprising the steps of:

[0045] Raw material preparation: 80 parts of polyvinyl chloride resin, 60 parts of active nano-calcium carbonate, 10 parts of talcum powder, 40 parts of plasticizer, 5 parts of epoxy soybean oil, 5 parts of stabilizer, 3 parts of active additive, 7 parts of auxiliary agent, 3.5 parts of colorant;

[0046] Pre-stirring treatment: put plasticizer, polyvinyl chloride resin and active nano-calcium carbonate in sequence in a kneader for high-temperature kneading to obtain a base material, wherein the kneading temperature is 105°C, and the kneading time is 45 minutes;

[0047] Pre-dispersion treatment: Put the base material obtained in the pre-stirring treatment step into the three-roll mill for two grinding and dispersion to obtain the dispersion base material;

[0048]High-speed stirring and mixing: put the dispersed base material obtained in the pre-dispersion treatment step, epoxy soybean oi...

Embodiment 3

[0059] A preparation method of PVC film for light box cloth, comprising the steps of:

[0060] Raw material preparation: 70 parts of polyvinyl chloride resin, 50 parts of active nano-calcium carbonate, 8 parts of talcum powder, 30 parts of plasticizer, 4 parts of epoxy soybean oil, 4 parts of stabilizer, 2 parts of active additive, 5 parts of auxiliary agent, 3 parts of colorant;

[0061] Pre-stirring treatment: put plasticizer, polyvinyl chloride resin and active nano-calcium carbonate in sequence in a kneader for high-temperature kneading to obtain a base material, wherein the kneading temperature is 110°C, and the kneading time is 30 minutes;

[0062] Pre-dispersion treatment: Put the base material obtained in the pre-stirring treatment step into the three-roll mill for two grinding and dispersion to obtain the dispersion base material;

[0063] High-speed stirring and mixing: put the dispersed base material obtained in the pre-dispersion treatment step, epoxy soybean oil,...

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Abstract

The invention discloses a preparation method of a PVC film for light box cloth, wherein the PVC film comprises the following raw materials in parts by weight: 60-80 parts of polyvinyl chloride resin, 40-60 parts of active nano-calcium carbonate, 8-12 parts of talcum powder, 25-40 parts of plasticizer, 3-6 parts of epoxidized soybean oil, 3-5 parts of stabilizer, 1-3 parts of active additive, 5-8 parts of auxiliary agent, 2-4 parts of coloring material, the preparation method of PVC film It includes the following steps: pre-stirring, pre-dispersing, high-speed stirring and mixing, plasticizing, kneading, filtering to remove impurities, calendering, embossing and cooling and curling. The product obtained in the present invention has high structural strength, uniform color and good tensile strength High performance, anti-fouling performance and anti-aging performance are conducive to industrial production and application.

Description

technical field [0001] The invention relates to the technical field of plastic products, in particular to a preparation method of a PVC film for light box cloth. Background technique [0002] Light box cloth is mainly used as outdoor materials and large-scale advertisements because of its good flexibility, uniform light transmission, long life, easy division and installation, and good ink retention. In recent years, the light box fabric has developed rapidly in our country, and occupies a very important position in the world in terms of international market competitiveness. The light box fabric is generally made of PVC mask, mesh cloth and PVC bottom film in sequence. Due to the current production of PVC film In the production process, the dispersion effect between the various components is not good, and agglomeration is very easy to occur, especially when functional fillers such as modified nano-calcium carbonate are added, it is particularly prone to agglomeration, which i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L91/00C08L33/02C08K13/02C08K3/26C08K3/34C08K5/524C08K5/521C08J3/20
CPCC08L27/06C08J3/20C08J3/203C08J5/18C08J2327/06C08J2491/00C08K2003/265C08K2201/011C08L2201/08C08L2203/16C08L2205/035
Inventor 朱建华朱胜彬
Owner 浙江铭龙新材料科技有限公司
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