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Blend sulfurized compound damping material of butyl rubber/chlorinated polyethylene olefin and prepn. process

A technology of composite damping material and chlorinated polyolefin, which is applied in the field of polymer material molding and processing, can solve the problems of unsatisfactory damping performance improvement, reduced service life, and resistance to compression permanent deformation in service characteristics, and achieves good mechanical properties and improves damping. performance, the effect of increasing the damping value

Inactive Publication Date: 2006-09-20
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The composite damping materials produced so far all have problems such as unsatisfactory improvement of damping performance or reduction of some service characteristics (such as resistance to compression set, heat resistance and mechanical properties, service life, etc.) due to the improvement of damping performance.

Method used

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  • Blend sulfurized compound damping material of butyl rubber/chlorinated polyethylene olefin and prepn. process
  • Blend sulfurized compound damping material of butyl rubber/chlorinated polyethylene olefin and prepn. process
  • Blend sulfurized compound damping material of butyl rubber/chlorinated polyethylene olefin and prepn. process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Example 1: Mix 100 grams of chlorinated butyl rubber and 30 grams of chlorinated polyethylene at a temperature of 160° C. on a double-roller rubber mixer for 20 minutes, then add 20 grams of phenolic resin and 5 grams of zinc oxide at 30° C. , 0.5 grams of magnesium oxide, 1 gram of stearic acid and 15 grams of chlorinated paraffin. After the rubber materials are mixed evenly, thin pass and make a triangle bag and a roll for 5 times each, adjust the roller distance to 2mm to output the film, and park it for 24 hours for use. The mixed rubber was molded on a flat vulcanizing machine at a temperature of 160°C and a pressure of 10 MPa for 15 minutes to prepare samples. Use dynamic mechanical test analyzer to characterize the dynamic mechanical properties of materials, such as figure 1 shown. The results show that the mechanical internal friction peak height of the material is 1.72, the temperature corresponding to the maximum loss factor is +16.5°C, and the temperature ...

Embodiment 2

[0035] Embodiment 2: 100 grams of chlorinated butyl rubber and 30 grams of chlorinated polyethylene were mixed for 20 minutes at room temperature on a double-roller rubber mixer, and then 20 grams of phenolic resin, 5 grams of zinc oxide, and phenolic resin were added at 40 ° C. 0.5 grams of magnesium oxide, 1 gram of stearic acid and 10 grams of chlorinated paraffin. After the rubber materials are mixed evenly, thin pass and make triangle bag and roll 5 times each, adjust the roller distance to 3mm to output the film, and park it for 24 hours for use. The mixed rubber was molded on a flat vulcanizing machine at a temperature of 170°C and a pressure of 8 MPa for 10 minutes to prepare samples. Use dynamic mechanical test analyzer to characterize the dynamic mechanical properties of materials, such as figure 2 shown. The results show that the mechanical internal friction peak height of the material is 1.56, the temperature corresponding to the maximum loss factor is +13°C, an...

Embodiment 3

[0036] Embodiment 3: 100 grams of chlorinated butyl rubber and 30 grams of mechanically degraded chlorinated polyethylene (that is, pulverized for 12 hours by a vibrating ball mill) were mixed for 5 minutes at a temperature of 140° C. on a double-roller rubber mixer, and then Add 20 grams of phenolic resin, 1.5 grams of zinc oxide and 5 grams of chlorinated paraffin at 60°C. After the rubber materials are mixed evenly, thin pass and make a triangle bag and a roll for 5 times each, adjust the roller distance to 2mm to output the film, and park it for 24 hours for use. The mixed rubber was molded on a flat vulcanizing machine at a temperature of 150°C and a pressure of 8 MPa for 15 minutes to prepare samples. Use dynamic mechanical test analyzer to characterize the dynamic mechanical properties of materials, such as image 3 shown. The results show that the mechanical internal friction peak height of the material is 1.74, the temperature corresponding to the maximum loss facto...

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Abstract

This invention discloses a kind of butyl rubber / polyolefin chloride blend composite damping materials and its preparation method. It has the characteristics that 70 mass shares of butyl rubber and 30~100 mass shares of polyolefin chloride are blended in a double-roller glue cauldron or an extruder at a temperature of 100~160 deg. C for 5~20 minutes or directly in a double-roller glue cauldron at room temperature for 5~20 minutes. Then at a temperature of 30~60 deg. C, 9~30 mass shares of vulcanizing agent, 1.5~6.0 mass shares of auxiliary vulcanization agent and 5~15 mass shares of plasticizers are added and the homogeneous blend is compression molded in a hydraulic plate vulcanization machine at a temperature of 140~170 deg. C and a pressure of 5~10MPa for 10~30 minutes so as to produce butyl rubber / polyolefin chloride blend composite damping materials with extraordinary damping properties.

Description

technical field [0001] The invention relates to a butyl rubber / chlorinated polyolefin blended vulcanized composite damping material and a preparation method thereof, belonging to the field of polymer material molding and processing. Background technique [0002] Rubber-like polymer damping material, namely viscoelastic damping material, is a functional material that can effectively absorb vibration energy. It can be converted into heat energy and dissipated, thus having the effect of reducing vibration and noise. Polymer damping materials are widely used in military and high-tech fields such as missiles, naval ships, rockets, and satellites. With the increasing emphasis on environmental protection, it has been applied in civilian industries such as cars, precision instruments, and earthquake prevention in recent years, and has developed extremely rapidly. [0003] Generally, the glass transition temperature (Tg) transition zone of a polymer homopolymer is relatively narrow...

Claims

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Application Information

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IPC IPC(8): C08L9/00C08L23/28C08K5/09C08L91/06B29C35/02
Inventor 黄光速潘启英吴锦荣郑静唐振华
Owner SICHUAN UNIV
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