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Ternary ethylene propylene rubber series damping material

A technology of EPDM and damping materials, applied in the field of damping materials, can solve problems such as not being able to meet the needs of actual use well

Inactive Publication Date: 2007-03-07
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Can not well meet the needs of actual use

Method used

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  • Ternary ethylene propylene rubber series damping material
  • Ternary ethylene propylene rubber series damping material
  • Ternary ethylene propylene rubber series damping material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 100 grams of EPDM was mixed with 200 grams of E1310 petroleum resin on a double-roller mill, and a 2mm thick sheet material sample was prepared using a 25t hydraulic plate vulcanizer with an electric heating plate, and a dynamic mechanical test was performed on it using a dynamic mechanical analyzer (DMA). Test conditions: frequency 10Hz, temperature -50°C ~ 120°C, heating rate 2°C / min, using tensile fixtures, test results are shown in Figure 1. It can be seen from Figure 1 that the peak value of the loss factor of this material is 1.99, and the peak value is located at 26.6°C; the temperature range where the loss factor is greater than 0.5 is 4°C to 51.9°C.

Embodiment 2

[0026] 100 grams of EPDM was mixed with 200 grams of ECR806 petroleum resin on a double-roll mill, and a 2mm thick sheet material sample was prepared by using a 25t hydraulic flat vulcanizer with an electric heating plate. Adopt dynamic mechanical analyzer to carry out dynamic mechanical test analysis (test condition is the same as embodiment 1. Below unless otherwise specified, test condition is all identical with example 1). The test results are shown in Figure 2. It can be seen from Figure 2 that the peak value of the loss factor of this material is 1.90, and the peak value is located at 19.9°C; the temperature range where the loss factor is greater than 0.5 is -2.2°C to 46.9°C.

Embodiment 3

[0028] 100 grams of M250EPDM was mixed with 250 grams of E1310 petroleum resin on a double-roller mill, and a 2mm thick sheet material sample was prepared by using a 25t hydraulic flat vulcanizer with an electric heating plate. The dynamic mechanical test was carried out by a dynamic mechanical analyzer, and the test results are shown in Figure 3. It can be seen from Figure 3 that the peak value of the loss factor of the material is 2.72, and the peak value is located at 35.8°C; the temperature range where the loss factor is greater than 0.5 is 11.9°C to 64.9°C.

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Abstract

The present invention relates to a kind of damping ethylene-propylene dienemonomer (EPDM) material prepared with solid EPDM, liquid EPDM, petroleum resin and / or chloroparaffin, and through mixing and sheeting. Compared with available damping material, the damping material of the present invention has the advantages of low cost, wide applicable temperature range, high weather resistance, etc.

Description

technical field [0001] The invention relates to a damping material, in particular to an EPDM-based damping material. Background technique [0002] The damping material is based on the viscoelasticity of polymers. In its glass transition region, the internal friction generated by the movement of molecular chains partially converts the mechanical energy or sound energy of the external field into heat energy dissipation, and has the effect of vibration reduction and noise reduction. functional materials. It is widely used in aerospace industry, transportation, mechanical equipment, construction engineering and daily life and other fields. [0003] Generally, the range of glass transition temperature of homopolymer is relatively narrow, and the temperature range for effective damping is about ±10-15°C of the glass transition temperature (Tg), and the use temperature range of the material is narrow and uncontrollable. Can not well meet the needs of actual use. Therefore, the d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L57/02C08L91/06C08L23/16B29B7/00
Inventor 吴驰飞张喜亮毛晓东李慧
Owner EAST CHINA UNIV OF SCI & TECH
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