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Preparation method of novel normal-temperature low-pressure-change high-damping material

A technology with low pressure change and high damping, which is applied in the field of preparation of new normal temperature, low pressure and high damping materials. It can solve the problems of poor compression permanent deformation performance and limited popularization and application of high damping butyl rubber, and achieve excellent mechanical properties, excellent mechanical properties, Reduces the effect of compression set

Inactive Publication Date: 2019-03-22
航天长征睿特科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of high damping butyl rubber's poor compression set performance greatly limits its further application in the field of damping and vibration reduction.

Method used

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  • Preparation method of novel normal-temperature low-pressure-change high-damping material
  • Preparation method of novel normal-temperature low-pressure-change high-damping material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A method for preparing a new type of damping material at normal temperature and low pressure, comprising the following steps:

[0024] S1: Select each component according to the proportions of 55% butyl rubber, 5% phenolic resin, 3% zinc oxide, 1% stearic acid, 1.5% antioxidant, and 34.5% modified silica filler, with a total mass of 500g;

[0025] S2: According to the ratio of each substance in S1, the above substances are sequentially added to the open mill in the order of butyl rubber, zinc oxide, stearic acid, antioxidant, phenolic resin and modified silica filler for kneading and tableting ; During mixing, the drum temperature is 40~60℃, the roll distance is 1~4mm, and the mixing time is 10~20min;

[0026] S3: Use a flat vulcanizer to vulcanize the rubber compound in S2; the vulcanization conditions are: the vulcanization temperature is 160℃±10℃, the vulcanization time is 25-30min, and the vulcanization pressure is 10-20Mpa.

[0027] The hardness of the obtained ru...

Embodiment 2

[0029] A method for preparing a new type of damping material at normal temperature and low pressure, comprising the following steps:

[0030] S1: Select each component according to the proportions of butyl rubber 76.5%, phenolic resin 7%, zinc oxide 5%, stearic acid 1.5%, anti-aging agent 2%, and modified silica filler 8%, with a total mass of 500g;

[0031] S2: According to the ratio of each substance in S1, the above substances are sequentially added to the open mill in the order of butyl rubber, zinc oxide, stearic acid, antioxidant, phenolic resin and modified silica filler for kneading and tableting ; During mixing, the drum temperature is 40~60℃, the roll distance is 1~4mm, and the mixing time is 10~20min;

[0032] S3: Use a flat vulcanizer to vulcanize the rubber compound in S2; the vulcanization conditions are: the vulcanization temperature is 160℃±10℃, the vulcanization time is 25-30min, and the vulcanization pressure is 10-20Mpa.

[0033] The hardness of the obtaine...

Embodiment 3

[0035] A method for preparing a new type of damping material at normal temperature and low pressure, comprising the following steps:

[0036] S1: Select each component according to the proportions of butyl rubber 66.5%, phenolic resin 6%, zinc oxide 4%, stearic acid 1.2%, antioxidant 1.8%, and modified silica filler 11%, with a total mass of 500g;

[0037] S2: According to the ratio of each substance in S1, the above substances are sequentially added to the open mill in the order of butyl rubber, zinc oxide, stearic acid, antioxidant, phenolic resin and modified silica filler for kneading and tableting ; During mixing, the drum temperature is 50°C, the roller distance is 3mm, and the mixing time is 15min;

[0038] S3: Use a flat vulcanizer to vulcanize the rubber compound in S2; the vulcanization conditions are: the vulcanization temperature is 150°C, the vulcanization time is 28min, and the vulcanization pressure is 18Mpa.

[0039] The invention has the characteristics of hi...

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Abstract

The invention relates to a preparation method of a novel normal-temperature low-pressure-change high-damping material. The preparation method of the novel normal-temperature low-pressure-change high-damping material comprises the following steps of S1, selecting components according to the proportion as below: 55 to 76.5 percent of butyl rubber, 5 to 7 percent of phenolic resin, 3 to 5 percent ofzinc oxide, 1 to 1.5 percent of stearic acid, 1.5 to 2 percent of anti-aging agent, and 8 to 34.5 percent of modified silicon earth filler; S2, according to the material proportions of the S1, sequentially adding the materials into an open mill according to the sequences of the butyl rubber, the zinc oxide, the stearic acid, the anti-aging agent, the phenolic resin and the modified silicon earth filler, mixing and discharging slices; S3, using a press vulcanizer for vulcanizing and forming a rubber compound in the S2.

Description

technical field [0001] The invention belongs to the field of high-performance damping materials, and in particular relates to a preparation method of a novel normal temperature and low pressure variable high damping material. Background technique [0002] Rubber material is a viscoelastic material, which can not only consume energy through internal friction between rubber macromolecules, but also store and release energy through elastic deformation. It can be used for damping and vibration reduction in the fields of electronics, precision instruments, automobiles, ships, and aerospace. Material. Butyl rubber is a kind of rubber material with high loss factor. Due to its high loss factor, it has a significant effect on the dissipation of vibration energy. It is a general-purpose damping and vibration-absorbing rubber material. But in general, a higher loss factor means that the rubber material itself has a higher loss modulus, a lower storage modulus, and a larger compressio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/22C08L61/06C08K3/22C08K5/09C08K3/34C08K13/06
CPCC08K2003/2296C08L23/22C08L61/06C08K3/22C08K5/09C08K3/34C08K13/06
Inventor 刘群策赵鑫张宇苏红波冯伟
Owner 航天长征睿特科技有限公司
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