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Polymer waterproof plate for composite gas isolation plate, and preparation method thereof

A polymer waterproof and isolation board technology, used in applications, household appliances, flat products, etc., can solve problems such as poor gas insulation performance, and achieve the effects of non-attenuated performance, excellent flame retardant performance, and good gas insulation.

Pending Publication Date: 2020-09-08
SICHUAN WEIDUN JIANGXIN CONSTR CO LTD +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a polymer waterproof board for a composite gas insulation board and its preparation method, so as to solve the technical problem of poor gas insulation performance of the composite gas insulation board in the prior art

Method used

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  • Polymer waterproof plate for composite gas isolation plate, and preparation method thereof
  • Polymer waterproof plate for composite gas isolation plate, and preparation method thereof
  • Polymer waterproof plate for composite gas isolation plate, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063]Preparation of polymer waterproof board for composite gas isolation board:

[0064] 1.1 Raw materials, as shown in Table 1 below:

[0065] The raw material that table 1 embodiment 1 adopts

[0066]

[0067] 1.2 Preparation method:

[0068] (1) Raw material premixing: All the raw materials are sucked into the high-mixer through the vacuum pump according to the ratio, and then dried in the high-mixer at a temperature of 53°C and the mixing time is 3 minutes, and then put into the low-mixer for mixing 5min, mix the raw materials evenly;

[0069] (2) Extrusion molding: The raw materials mixed uniformly in step (1) are conveyed into the twin-screw extruder through the twin-screw conveyor, and the gas insulation plate polymer is extruded through the extrusion temperature of 220°C-240°C The waterproof board is then formed by a three-roller forming machine and then cooled to room temperature;

[0070] (3) Internal stress treatment: the polymer waterproof board formed in s...

Embodiment 2

[0074] Preparation of polymer waterproof board for composite gas isolation board:

[0075] 2.1 Raw materials, as shown in Table 2 below:

[0076] The raw material that table 2 embodiment 2 adopts

[0077]

[0078] 2.2 Preparation method:

[0079] (1) Raw material pre-mixing: All the raw materials are sucked into the high-mixer through the vacuum pump according to the ratio, and dried in the high-mixer at a temperature of 50°C, and the mixing time is 2 minutes, and then put into the low-mixer for mixing 6min, mix the raw materials evenly;

[0080] (2) Extrusion molding: The raw materials mixed uniformly in step (1) are conveyed into the twin-screw extruder through the twin-screw conveyor, and the gas insulation plate polymer is extruded through the extrusion temperature of 220°C-240°C The waterproof board is then formed by a three-roller forming machine and then cooled to room temperature;

[0081] (3) Internal stress treatment: the polymer waterproof board formed in ste...

Embodiment 3

[0085] Preparation of polymer waterproof board for composite gas isolation board:

[0086] 3.1 Raw materials, as shown in Table 3 below:

[0087] The raw material that table 3 embodiment 3 adopts

[0088]

[0089] 3.2 Preparation method:

[0090] (1) Raw material premixing: All the raw materials are sucked into the high-mixer through the vacuum pump according to the ratio, and dried in the high-mixer at a temperature of 55°C, and the mixing time is 4 minutes, and then put into the low-mixer for mixing 4min, mix the raw materials evenly;

[0091] (2) Extrusion molding: The raw materials mixed uniformly in step (1) are conveyed into the twin-screw extruder through the twin-screw conveyor, and the gas insulation plate polymer is extruded through the extrusion temperature of 220°C-240°C The waterproof board is then formed by a three-roller forming machine and then cooled to room temperature;

[0092] (3) Internal stress treatment: The polymer waterproof board formed in step...

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Abstract

The invention provides a polymer waterproof plate for a composite gas isolation plate, and a preparation method thereof. The technical problem that in the prior art, a composite gas isolation plate ispoor in gas isolation performance is solved. The polymer waterproof plate is prepared from, by weight, 25-50% of linear low density polyethylene, 10-30% of nylon 6 / EVOH, 5-10% of high density polyethylene, 5-15% of a toughening agent, 10-20% of a flame retardant, 1-6% of a compatilizer, 1-2% of a modifying aid, 1-1.5% of an antioxidant and 0.5-1.5% of an anti-ultraviolet agent, wherein the sum ofthe weight percentages of the raw materials is 100%. The polymer waterproof plate provided by the invention has good gas isolation, flame retardance, antistatic property and excellent mechanical properties.

Description

technical field [0001] The invention relates to a composite gas isolation board for a tunnel, in particular to a polymer waterproof board for a composite gas isolation board and a preparation method thereof. Background technique [0002] The composite gas waterproof isolation project of tunnels in my country mainly needs to meet gas barrier properties, flame retardancy, antistatic properties and excellent mechanical properties. Most of the existing gas barrier panels have poor gas barrier properties, are not antistatic, and are hard Due to the long-term high and low temperature changes in the use environment, there are dimensional changes in the plastic sheet, which leads to gas insulation performance defects; because of the long-term harsh use environment, the material has performance attenuation, and due to the lack of flexibility of the material, It is not easy to fold, which also causes some troubles for road transportation, and has the disadvantage of poor construction, w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L77/02C08L23/06C08L51/06C08L23/16C08L91/06C08K13/02C08K5/3492C08K5/20C08K5/134C08K5/526B29B7/28B29C48/00B29C48/92B29C59/10B29C69/02B29C71/00
CPCC08L23/0815C08L77/02C08L23/0861B29B7/28B29C48/0011B29C48/92B29C71/00B29C59/10B29C69/02B29L2007/002B29C2948/92704C08L2201/02C08L2201/04C08L2201/08C08L2201/14C08L2205/08C08L2205/06C08L2207/062C08L2205/025C08L2205/035C08L2207/04C08L23/06C08L51/06C08L23/16C08L91/06C08K13/02C08K5/34928C08K5/20C08K5/1345C08K5/526
Inventor 曹潇尹楚珑晟崔占明邓卫东郑贤方刘勇袁志涛李雷
Owner SICHUAN WEIDUN JIANGXIN CONSTR CO LTD