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Processing method for producing anti-static sheet through continuous process

A process method and anti-static technology, which is applied in the field of anti-static sheet production, can solve the problems of reduced productivity, high-power extension and other physical energy reduction, and achieve the effect of high extensibility

Inactive Publication Date: 2013-09-18
恩斯盟防静电材料(镇江)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the above-mentioned process of using antistatic liquid to produce antistatic sheets in an off-line manner, due to the separation of sheet extrusion and sheet coating processes, leads to a decrease in productivity
One step further, the anti-static products produced by using this anti-static sheet will have lower physical properties such as dissolution resistance and high-power elongation.

Method used

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  • Processing method for producing anti-static sheet through continuous process
  • Processing method for producing anti-static sheet through continuous process

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0048] 1-1. Carbon nanotube (length 30 μm, width 10nm multi-wall) 2% by weight, acrylic polymer binder (Carboset CR780, BFGoodrich Co.) 15% by weight, isopropanol 50% by weight, interest rate cellulose 31 % by weight, dispersant (polymer anion, HPA-328, Yeungsan Co.) 1% by weight, fluidity improver (HPA-538, Yeungsan Co.) 1% by weight, antistatic liquid is produced according to the above proportioning ratio.

[0049] 1-2. After the polyethylene terephthalate (PET) resin is extruded through the T-steel die extrusion process (the temperature of the extruder is 150-170 ° C), it will be produced by passing through a single rod and a cooling roll. A PET sheet with a thickness of 1 mm is coated on one side with the above-mentioned antistatic kiss roll coating liquid to form a coating with a thickness of 0.1 μm (coating thickness after drying), and thermally cured at a temperature of 60-80 ° C . After kiss roll coating on one side, roll coating is used to coat the other side of the ...

example 2

[0051] The antistatic sheet produced in the above example 1 was vacuum formed at a temperature of 150-180° C., and stretched 5 times to produce an antistatic tray.

example 3

[0053] Example 1-1 excludes the addition of 1% by weight of aziridine as a crosslinking agent, and then prepares an antistatic liquid in the same manner, and then produces an antistatic sheet in the same manner as in Example 1-2. The surface impedance is measured according to the method of ASTM D257.

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Abstract

The invention relates to a processing method for producing an anti-static sheet through a continuous process. According to the processing method, in the process of extruding thermoplastic polymer resin of an insulator into the sheet through an extruder, an anti-static liquid is coated on at least one side of the sheet online to form an anti-static layer, wherein the anti-static liquid is kiss roll coating liquid which contains thermocuring resin and carbon nanotubes with the weight ratio of 100: (0.1-500), as well as the thermocuring resin and water or an organic solvent with the weight ratio of 100: (10-2000). The process of online kiss roll coating on at least one side simultaneously when the sheet is extruded refers to the continuous process [one-step (in-line)]. Compared with an off-line coating mode, the sheet extrusion mode through in-line kiss roll coating has the characteristics of relative corrosion resistance, strong extensibility, excellent anti-static performance of the sheet and the like.

Description

technical field [0001] The invention relates to a process for producing an antistatic sheet. Background technique [0002] A general antistatic sheet (sheet) is produced by coating an antistatic liquid on the basic plastic surface of an insulator, and drying it by heat curing or light curing. The above-mentioned thermosetting coating method is to produce antistatic film or sheet by various coating methods such as anilox roller coating, bachelor coating or spray coating on the base plastic. This kind of production method is not only productive, but also can flexibly adjust the surface impedance, and the stability of the liquid is also high. However, for some plastics, there are also problems of poor adhesion, dissolution resistance and hardness of the coating. Compared with this, photocuring has advantages such as curing can be completed at low temperature and the curing speed is also faster. In addition, it has the advantages of solubility resistance, wear resistance, str...

Claims

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Application Information

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IPC IPC(8): B29D7/01
Inventor 郑相国张宽植金仁教崔容硕
Owner 恩斯盟防静电材料(镇江)有限公司
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