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Multi-layer compound anti-static material and preparation method thereof

A multi-layer composite, anti-static technology, applied in chemical instruments and methods, lamination, coating and other directions, can solve the problem of poor anti-slip performance of anti-static material sheets, poor elasticity of anti-static sheet materials, lack of gloss, etc. problem, to achieve the effect of good dimensional stability, high molding efficiency and good sound insulation performance

Inactive Publication Date: 2018-05-29
SHENZHEN CHANGYUAN TEFA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. The anti-static sheet material is a single layer, which is easy to chip and fade;
[0005] 2. The anti-static sheet material has poor elasticity, no shock resistance, and no cushioning;
[0006] 3. The anti-static material sheet has poor anti-slip performance and no gloss

Method used

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  • Multi-layer compound anti-static material and preparation method thereof
  • Multi-layer compound anti-static material and preparation method thereof
  • Multi-layer compound anti-static material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Antistatic foam composition, by mass percentage, including 71% LDPE, 5% EVA, 8% conductive carbon black, 10% AC foaming agent, 1.0% ZnO, 2.0% ZnSt, 3% anti-static Oxygen 1010 with DSTP. The mass ratio of 1010 to DSTP is 0.5, and the melt index of LDPE is 2.0g / 10min.

[0061] The composition of the conductive film includes 30% of LDPE, 35.5% of LLDPE, 30% of MLLDPE, 4% of conductive carbon black and 0.5% of PPA auxiliary agent according to mass percentage. The melt index of LDPE is 1.5g / 10min, the melt index of LLDPE is 7.0g / 10min, and the melt index of MLLDPE is 10.0g / 10min.

[0062] The type of glue is oily solvent acrylic self-adhesive; the type of antistatic substrate is PVC.

[0063] The preparation method comprises the following steps:

[0064] Step A: Blending at 140°C for 12 minutes, adding different proportions of foaming agent, auxiliary foaming agent, low-density polyethylene, EVA and conductive carbon black for banburying and granulation; then the masterba...

Embodiment 2

[0071] Antistatic foam composition, by mass percentage, including 64% LDPE, 10% EVA, 8% conductive carbon black, 12% AC foaming agent, 1.0% ZnO, 2.0% ZnSt, 3% anti-static Oxygen 1010 with DSTP. The mass ratio of 1010 to DSTP is 0.5, and the melt index of LDPE is 2.0g / 10min.

[0072] The composition of the conductive film includes 30% of LDPE, 33% of LLDPE, 30% of MLLDPE, 6% of conductive carbon black and 1.0% of PPA auxiliary agent according to mass percentage. The melt index of LDPE is 1.5g / 10min, the melt index of LLDPE is 6.0g / 10min, and the melt index of MLLDPE is 12.0g / 10min.

[0073] The type of glue is oily solvent acrylic self-adhesive; the type of antistatic substrate is PMMA.

[0074] The preparation method comprises the following steps:

[0075] Step A: Blending at 130°C for 12 minutes, adding different proportions of foaming agent, auxiliary foaming agent, low-density polyethylene, EVA and conductive carbon black for banburying and granulation; then the masterba...

Embodiment 3

[0082] Antistatic foam composition, by mass percentage, including 69.5% LDPE, 8% EVA, 7% conductive carbon black, 12% AC foaming agent, 0.5% ZnO, 1.0% ZnSt, 2% anti-static Oxygen 1010 with DSTP. The mass ratio of 1010 to DSTP is 0.5, and the melt index of LDPE is 2.0g / 10min.

[0083] The composition of the conductive film includes 35% of LDPE, 34% of LLDPE, 25% of MLLDPE, 5% of conductive carbon black and 1.0% of PPA auxiliary agent according to mass percentage. The melt index of LDPE is 2.0g / 10min, the melt index of LLDPE is 7.0g / 10min, and the melt index of MLLDPE is 7.0g / 10min.

[0084] The type of glue is water-based solvent acrylic self-adhesive; the type of anti-static substrate is EVA.

[0085] The preparation method comprises the following steps:

[0086] Step A: Blending at 120°C for 10 minutes, adding different proportions of foaming agent, auxiliary foaming agent, low-density polyethylene, EVA and conductive carbon black for banburying and granulation; then the m...

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Abstract

The invention provides a multi-layer compound anti-static material and a preparation method thereof. The preparation method comprises the steps of (1) mixing a main material polyethylene, polyolefin modifier, carbon black, foaming agent and auxiliary materials and then pelletizing, extruding a master batch through a single screw to obtain sheets, radiating the sheets through an electron accelerator, and finally, foaming the sheets through a foam furnace to obtain polyethylene anti-static foam; (2) covering a layer of conductive membrane at one side of the polyethylene anti-static foam througha coating extruder; and (3) laminating the other side of the anti-static foam with anti-static matrix gum, so as to obtain the multi-layer compound anti-static material (the anti-static foam is in themiddle layer). The compound material has good surface texture, is anti-slide, is wear-resistant, dissolves no dust, has stable anti-static performance, has thermal insulation performance and sound insulation performance, has good buffering performance, and is easy to shape, thereby being suitable for wide use in fields like turnover and package of electronic devices.

Description

technical field [0001] The invention belongs to the technical field of composite materials, in particular to a multilayer composite antistatic material and a preparation method thereof. Background technique [0002] Multi-layer composite anti-static material is a new type of environmentally friendly material. Due to its low toxicity, low odor, acid / alkali corrosion resistance, high temperature resistance, wear resistance, anti-slip, permanent anti-static, high degree of purification, and good cushioning performance, it can be Freely adjust anti-static performance, hardness and thickness, light weight and other characteristics, it is irreplaceable for other foamed cotton materials and plastic sheets, can be cut, hot-pressed and post-processed, suitable for packaging materials, cushioning protection Materials, product turnover materials and other fields. However, because the current domestic foam materials have characteristics such as odor, dust precipitation, scratch resista...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B37/12B32B27/08B32B27/18B32B27/32B32B27/30B32B27/40B32B7/12B32B33/00C08L23/06C08L23/08C08K3/04C08K3/22C08K5/098C08K5/134C08K13/02C08J9/10C08J5/18
CPCB32B37/1284B32B5/18B32B7/12B32B27/065B32B27/304B32B27/306B32B27/308B32B27/40B32B33/00B32B2037/243B32B2250/246B32B2255/102B32B2255/26B32B2266/025B32B2270/00B32B2307/102B32B2307/202B32B2307/21B32B2307/304B32B2307/56B32B2307/734B32B2307/744C08J5/18C08J9/103C08J2203/04C08J2323/06C08J2323/08C08J2423/06C08J2423/08C08K3/04C08K5/098C08K5/1345C08K13/02C08K2003/2296
Inventor 石洪军彭华白亮亮张波危成亮
Owner SHENZHEN CHANGYUAN TEFA TECH CO LTD
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