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Antistatic polyethylene closed-cell foam board and preparation method thereof

A closed-cell foam board and polyethylene technology, which is applied in the field of anti-static polyethylene closed-cell foam board, can solve the problems of static accumulation of initial lining structure and waterproof board, occurrence of safety accidents, concentrated discharge, etc., to eliminate the phenomenon of concentrated discharge, Increase stability and durability, increase dispersion effect

Pending Publication Date: 2020-09-08
SICHUAN WEIDUN JIANGXIN CONSTR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an antistatic polyethylene closed-cell foam board and its preparation method, so as to solve the problem of static electricity accumulation easily occurring on the primary lining structure and waterproof board during the excavation process in the tunnel, concentrated discharge phenomenon occurs, and safety hazards occur. accident technical issues

Method used

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  • Antistatic polyethylene closed-cell foam board and preparation method thereof
  • Antistatic polyethylene closed-cell foam board and preparation method thereof
  • Antistatic polyethylene closed-cell foam board and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] Preparation of antistatic polyethylene closed-cell foam board:

[0062] 1.1 Raw materials, as shown in Table 1 below:

[0063] The raw material that table 1 embodiment 1 adopts

[0064]

[0065] 1.2 Preparation method:

[0066] (1) Initial mixing of solid materials: After weighing linear low-density polyethylene, high-conductivity carbon black, high-density polyethylene, and foaming agent according to the proportion, put them into the mixer for the first initial mixing, at a temperature of 50°C Mix for 5 minutes, mix well;

[0067] (2) Auxiliary blending: After weighing the coupling agent, crosslinking agent, dispersant and stabilizer, antioxidant and anti-ultraviolet agent according to the proportion respectively, add it to the mixer, carry out the secondary blending, at temperature Mix at 50°C for 10 minutes to obtain a uniformly mixed formula;

[0068] (3) Extrusion molding: The formula mixed uniformly in step (2) is transported into the twin-screw through the...

Embodiment 2

[0072] Preparation of antistatic polyethylene closed-cell foam board:

[0073] 2.1 Raw materials, as shown in Table 2 below:

[0074] The raw material that table 2 embodiment 2 adopts

[0075]

[0076] 2.2 Preparation method:

[0077] (1) Initial mixing of solid materials: After weighing linear low-density polyethylene, high-conductivity carbon black, high-density polyethylene, and foaming agent according to the proportion, put them into the mixer for the first initial mixing, at a temperature of 45°C Mix the materials for 6 minutes, mix well;

[0078] (2) Auxiliary blending: After weighing the coupling agent, crosslinking agent, dispersant and stabilizer, antioxidant and anti-ultraviolet agent according to the proportion respectively, add it to the mixer, carry out the secondary blending, at temperature Mix at 45°C for 12 minutes to obtain a uniformly mixed formula;

[0079] (3) Extrusion molding: The formula mixed uniformly in step (2) is transported into the twin-screw...

Embodiment 3

[0083] Preparation of antistatic polyethylene closed-cell foam board:

[0084] 3.1 Raw materials, as shown in Table 3 below:

[0085] The raw material that table 3 embodiment 3 adopts

[0086]

[0087] 3.2 Preparation method:

[0088] (1) Initial mixing of solid materials: After weighing linear low-density polyethylene, high-conductivity carbon black, high-density polyethylene, and foaming agent according to the proportion, put them into the mixer for the first initial mixing, at a temperature of 55°C Mix the materials for 4 minutes, mix well;

[0089] (2) Auxiliary blending: After weighing the coupling agent, crosslinking agent, dispersant and stabilizer, antioxidant and anti-ultraviolet agent according to the proportion respectively, add it to the mixer, carry out the secondary blending, at temperature Mix at 55°C for 12 minutes to obtain a uniformly mixed formula;

[0090] (3) Extrusion molding: The formula mixed uniformly in step (2) is transported into the twin-scr...

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Abstract

The invention provides an antistatic polyethylene closed-cell foam board and a preparation method thereof. The technical problems that in the excavation process in a tunnel in the prior art, a primarylining structure and a waterproof board are prone to electrostatic accumulation, a centralized discharge phenomenon occurs, and safety accidents occur are solved. The antistatic polyethylene closed-cell foam board comprises 70.7-85.6% of linear low-density polyethylene, 5-10% of high-conductivity carbon black, 5-10% of high density polyethylene, 1-2% of a foaming agent, 1-2% of a cross-linking agent, 0.3-0.8% of a dispersing agent, 0.1-0.5% of a coupling agent, 0.5-1% of a stabilizer, 1-1.5% of an antioxidant and 0.5-1.5% of an anti-ultraviolet agent, wherein the sum of the weight percentagesof the raw materials is 100%. The antistatic polyethylene closed-cell foam board provided by the invention can eliminate the problem of electrostatic accumulation on the primary lining structure andthe waterproof board when used in the tunnel excavation process, eradicates the phenomenon of centralized discharge, and can reduce the occurrence of accidents.

Description

technical field [0001] The invention relates to an antistatic polyethylene closed-cell foam board, in particular to an antistatic polyethylene closed-cell foam board and a preparation method thereof. Background technique [0002] A major cause of safety accidents in gas tunnels is static electricity concentration and tip discharge. There are many ways to solve the risk of gas explosions. For example, reducing the gas concentration is the most effective way. However, there are still some gas explosion accidents in tunnels in China. , in order to further solve the safety problem of the gas tunnel, the static electricity problem in the tunnel excavation process must be solved, the static electricity will not accumulate, and the discharge phenomenon will not occur, which can reduce a source of danger. [0003] The applicant finds that the prior art has at least the following technical problems: [0004] During the excavation process in the tunnel, the initial lining structure a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L23/06C08K13/06C08K9/06C08K3/04C08K5/14C08K5/13C08K5/134C08K5/526C08K5/20C08J9/10
CPCC08J9/103C08J9/0061C08J9/009C08J9/0023C08J9/0038C08J9/0028C08J9/0095C08J2205/052C08J2203/04C08K13/06C08K9/06C08K3/04C08K2201/001C08K5/14C08K5/13C08K5/1345C08K5/526C08K5/20C08J2323/08C08J2423/06
Inventor 李雷曹潇尹楚珑晟袁志涛郑贤方刘勇
Owner SICHUAN WEIDUN JIANGXIN CONSTR CO LTD
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