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Flame-retardant rubber tube and preparation method thereof

A flame-retardant rubber and rubber technology, which is applied in the field of gas mask polymer materials, can solve the problems of poor flame retardancy and aging resistance of rubber airway tubes, and achieve the effects of good flame retardancy, good aging resistance and stable quality

Pending Publication Date: 2022-06-24
SHANXI XINHUA CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problems of poor flame retardancy and aging resistance of rubber air ducts used in gas masks, the present invention provides a flame-retardant rubber tube and a preparation method thereof. By using rubber in combination, a rubber tube that can well meet the technical indicators of the rubber tube and meet the resistance requirements is prepared. Combustible, low permanent deformation, high tensile strength, good performance rubber formula

Method used

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  • Flame-retardant rubber tube and preparation method thereof
  • Flame-retardant rubber tube and preparation method thereof
  • Flame-retardant rubber tube and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A flame retardant rubber tube is prepared from the following raw materials in proportions by weight:

[0027]

[0028] A preparation method of a flame retardant rubber tube, comprising the following steps:

[0029] (1), take by weighing (NR / CR / CII=7:2:1) and use rubber, zinc oxide, magnesium oxide, accelerator, sulfur, antioxidant, reinforcing carbon black, hard Fatty acid, chlorinated paraffin, flame retardant;

[0030] (2) After plasticizing NR, CR and CII on the rubber mixing machine first, then blending, then adding zinc oxide, stearic acid, reinforcing carbon black, and anti-aging agent for mixing, and then adding chlorinated paraffin, Flame retardant, the temperature is controlled at 40 ℃ ~ 55 ℃, and finally the accelerator and the vulcanizing agent are added and mixed to obtain the flame retardant and aging resistant adhesive.

[0031] (3) After processing the rubber material that meets the technical indicators, and then extruding and vulcanizing, the corres...

Embodiment 2

[0033] A flame retardant rubber tube is prepared from the following raw materials in proportions by weight:

[0034]

[0035] A preparation method of a flame retardant rubber tube, comprising the following steps:

[0036] (1), take by weighing (NR / CR / CII=7:2.5:0.5) and use rubber, zinc oxide, magnesium oxide, accelerator, sulfur, antioxidant, reinforcing carbon black, hard Fatty acid, chlorinated paraffin, flame retardant;

[0037] (2) After plasticizing NR, CR and CII on the rubber mixing machine first, then blending, then adding zinc oxide, stearic acid, reinforcing carbon black, and anti-aging agent for mixing, and then adding chlorinated paraffin, Flame retardant, the temperature is controlled at 40 ℃ ~ 55 ℃, and finally the accelerator and the vulcanizing agent are added and mixed to obtain the flame retardant and aging resistant adhesive.

[0038] (3) After processing the rubber material that meets the technical indicators, and then extruding and vulcanizing, the co...

Embodiment 3

[0040] A flame retardant rubber tube is prepared from the following raw materials in proportions by weight:

[0041]

[0042]

[0043] A preparation method of a flame retardant rubber tube, comprising the following steps:

[0044] (1), take by weighing (NR / CR / CII=7:2:1) and use rubber, zinc oxide, magnesium oxide, accelerator, sulfur, antioxidant, reinforcing carbon black, hard Fatty acid, chlorinated paraffin, flame retardant;

[0045] (2) After plasticizing NR, CR and CII on the rubber mixing machine first, then blending, then adding zinc oxide, stearic acid, reinforcing carbon black, and anti-aging agent for mixing, and then adding chlorinated paraffin, Flame retardant, the temperature is controlled at 40°C to 55°C, and finally, an accelerator and a vulcanizing agent are added and mixed to obtain a flame-retardant and aging-resistant adhesive.

[0046] (3) After processing the rubber material that meets the technical indicators, and then extruding and vulcanizing, t...

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Abstract

The invention relates to the technical field of gas mask high polymer materials, in particular to a flame-retardant rubber tube and a preparation method thereof. The rubber material is prepared from the following raw materials in parts by weight: 100 parts of NR / CR / CII blended rubber, 5-8 parts of zinc oxide, 0.3-0.5 part of magnesium oxide, 2-5 parts of an accelerant CZ and an accelerant TT, 0.5-1 part of sulfur, 2-4 parts of an anti-aging agent, 25-35 parts of reinforcing carbon black, 1-1.5 parts of stearic acid, 1-2 parts of chlorinated paraffin and 15-25 parts of a flame retardant. Compared with a traditional rubber tube, the flame-retardant rubber tube disclosed by the invention adopts a rubber combination system, so that the aging resistance of rubber is improved; through the design of a vulcanization system, a reinforcing system and a flame-retardant system, the rubber material prepared by the system formula is a rubber tube with good flame retardance, small deformation, high strength and good aging resistance, is used for connecting a gas mask with a canister with a relatively high protection grade, and has a very good practical value.

Description

technical field [0001] The invention relates to the technical field of polymer materials for gas masks, in particular to a flame retardant rubber tube and a preparation method thereof. Background technique [0002] In the field of personal protective gas masks, most of the rubber air tubes (hereinafter referred to as rubber tubes) used in gas masks are natural rubber, which is matched with masks. When people are injured by air poisoning agent vapors, aerosols, etc. For the protection of personnel's face and respiratory tract, due to the poor flame retardancy of the hose, it is easy to burn in case of fire, causing injury to the operator. [0003] At present, both helmet type and headband type gas masks in the domestic market have masks with rubber tubes. In recent years, due to the new requirements for the flame retardant performance and other indicators of masks, rubber tubes made of a single natural rubber can no longer meet the requirements. Better flame retardant requir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L11/00C08L23/28C08L91/06C08L33/08C08K3/22C08K3/06C08K3/04C08K5/09C08K5/16C08K13/02
CPCC08L7/00C08K2003/2296C08K2003/222C08L2201/02C08L2203/18C08L11/00C08L23/283C08L91/06C08L33/08C08K3/22C08K3/06C08K3/04C08K5/09C08K3/2279C08K5/16C08K13/02
Inventor 赵国平王慧武旭光程优李帆张丽霞
Owner SHANXI XINHUA CHEM
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