Low-density environment-friendly ablation-resistant ethylene propylene rubber and preparation method thereof

An ethylene-propylene rubber and ablation-resistant technology, which is applied in the field of rubber manufacturing, can solve the problems of poor low temperature resistance, high density, and inability to meet the functional requirements of new flight equipment, and achieve low density, low odor, and good ablation resistance. Effect

Inactive Publication Date: 2020-03-27
NORTHWEST RUBBER & PLASTIC RES & DESIGN INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing nitrile rubber insulation materials can meet the requirements of ablation resistance, but have high density, poor low temperature resistance, and insufficient weather aging, so they are not suitable for the functional requirements of new flight equipment

Method used

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  • Low-density environment-friendly ablation-resistant ethylene propylene rubber and preparation method thereof
  • Low-density environment-friendly ablation-resistant ethylene propylene rubber and preparation method thereof
  • Low-density environment-friendly ablation-resistant ethylene propylene rubber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The components and proportioning scheme of the above-mentioned rubber are shown in Table 1 below:

[0037]

[0038]

[0039] Table 1.

[0040] The preparation method of the compound rubber material of above-mentioned rubber comprises the following steps:

[0041] Use a double-roll mill for material mixing, adjust the roller distance to 1-2 mm, and add EPDM raw rubber at a temperature of 0-50°C; after the raw rubber is pressed into continuous sheets and translucent, adjust the kneading Machine roll distance to 3 ~ 4mm, add 5 grams of zinc oxide, 50 grams of nitrogen-phosphorus environmentally friendly flame retardants, 1 gram of stearic acid, 2 grams of dicumyl peroxide, 1.6 grams of accelerators and additives, polystyrene 15 grams of sulfide, 6 grams of aramid pulp, 10 grams of thin resin, and 5 grams of aramid short fiber. After the feeding is completed, the film is rolled 5 times and the film is removed; the film that has been rolled is ground by a three-roller...

Embodiment 2

[0065] The components and proportioning scheme of the rubber of the present embodiment are shown in Table 3 below:

[0066]

[0067] table 3.

[0068] In this example, other preparation steps are consistent with Example 1.

Embodiment 3

[0070] The components and proportioning scheme of the rubber of the present embodiment are shown in Table 4 below:

[0071]

[0072]

[0073] Table 4.

[0074] In this example, other preparation steps are consistent with Example 1.

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PUM

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Abstract

The invention relates to the technical field of rubber manufacturing, in particular to low-density environment-friendly ablation-resistant ethylene propylene rubber and a preparation method thereof. The rubber material comprises the following main components: a base material, a reinforcing material, an ablation-resistant functional material, a flame retardant and other auxiliary agents, wherein the mass percentage range of each component is as follows: 45%-55% of the base material; 25%-35% of the flame retardant material; 5%-15% of the reinforcing agent; 5%-10% of the ablation-resistant functional material and and 1%-5% of other auxiliary agents. The invention provides the low-density environment-friendly ethylene propylene rubber material with excellent ablation resistance, and the ethylene propylene rubber material is prepared by optimizing the formula and matching with the weather-resistant functional material, the flame-retardant material, the reinforcing material and other auxiliary agents. The prepared rubber material is particularly suitable for protecting the internal thermal insulation layer of aviation and aerospace weapons and resisting flame scouring.

Description

technical field [0001] The invention relates to the technical field of rubber manufacturing, in particular to a low-density, environment-friendly ablation-resistant ethylene-propylene rubber and a preparation method thereof. Background technique [0002] With the continuous development of national defense technology, the flying speed and distance of some aircraft are getting higher and higher, and the heat-resistant environment they face is becoming more and more severe. It plays a very important role in the heat-resistant structure. The heat-resistant protection of some special and key parts must meet the functional requirements of the design. Some products require the heat-insulating layer material to play the role of environmental protection, low density and heat protection, that is, the material meets the requirements of the design. Under the premise of normal function, it must have low density, so as to reduce the weight of the overall system, increase the charge amount...

Claims

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Application Information

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IPC IPC(8): C08L23/16C08L77/10C08L45/00C08L81/02C08K13/02C08K3/22C08K5/09C08K5/14
CPCC08K2003/2296C08L23/16C08L2201/02C08L2205/025C08L2205/035C08L2205/16C08L77/10C08L45/00C08L81/02C08K13/02C08K3/22C08K5/09C08K5/14
Inventor 申迎军张怀宽段栋王威徒单静许欢王岚蔡健李晓强
Owner NORTHWEST RUBBER & PLASTIC RES & DESIGN INST CO LTD
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