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Novel damping composite and thermal compounding process

A damping composite material and composite material technology, applied in the field of damping composite material processing, can solve problems such as cold resistance, poor elasticity and aging resistance, pollute the air quality in the car, and non-recyclable materials, etc., achieve good aging resistance and overcome hardening Brittle, good elastic effect

Inactive Publication Date: 2019-12-10
ANHUI ZHICHENG ELECTROMECHANICAL SPARE PARTS
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to provide new damping composite materials and thermal composite technology, which can effectively solve the problem of poor cold resistance, elasticity, and aging resistance of asphalt-based damping materials in the background technology, and will release some harmful substances to the human body during use, causing serious pollution. The air quality in the car, the materials after use cannot be recycled, causing waste and environmental pollution, asphalt-based damping materials become hard and brittle at low temperatures, and elastic problems

Method used

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  • Novel damping composite and thermal compounding process

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Embodiment 1

[0019] The new damping composite material includes the following components in parts by mass: 180 parts of thermoplastic elastomer, 50 parts of low-density polyethylene, 80 parts of auxiliary agent, 60 parts of oleic acid amide, and 30 parts of polyethylene wax.

Embodiment 2

[0021] The new damping composite material includes the following components in parts by mass: 190 parts of thermoplastic elastomer, 65 parts of low-density polyethylene, 115 parts of additives, 75 parts of oleic acid amide, and 40 parts of polyethylene wax.

Embodiment 3

[0023] The new damping composite material includes the following components in parts by mass: 200 parts of thermoplastic elastomer, 80 parts of low-density polyethylene, 150 parts of additives, 90 parts of oleic acid amide, and 50 parts of polyethylene wax.

[0024] In this embodiment, the auxiliary agent includes flame retardant, calcium carbonate, antioxidant and antistatic agent, and its ratio is 3:2:1:1. The flame retardant improves the flame retardancy of the damping material, and the calcium carbonate is The smoke absorbent, on the one hand, can effectively absorb a large amount of smoke generated during the action of the flame retardant, improving the safety of use, on the other hand, it can be used as a filler to reduce the production cost of the product. The antistatic agent improves the antistatic property of the damping material and improves the convenience of using the damping material.

[0025] In this embodiment, the thermoplastic elastomer is a mixture of thermo...

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Abstract

The invention discloses a novel damping composite. The composite comprises the following components by mass: 180-200 parts of a thermoplastic elastomer, 50-80 parts of low density polyethylene, 80-150parts of an auxiliary agent, 60-90 parts of oleamide, and 30-50 parts of polyethylene wax. The invention also discloses a thermal compounding process of the novel damping composite. The thermoplasticelastomer is added into the damping composite, so the composite has good elasticity and damping and sound attenuation functions, and can still maintain good elasticity at low temperatures, which effectively overcomes the shortcomings of hardening and embrittlement of a bitumen-based damping material during stirring at low temperatures. The composite has the advantages of good compatibility duringprocessing, good processing performance, no toxic or harmful substance generation during preparation, good aging resistance and high reliability; and the composite is recyclable, environmentally-friendly in using, pollution-free, and energy-saving.

Description

technical field [0001] The invention relates to the technical field of damping composite material processing, in particular to a novel damping composite material and thermal composite technology. Background technique [0002] As a closed space for carrying people, rail transit trains have become an urgent problem to be solved for the sustainable and stable development of rail transit trains, and the air-borne sound transmission of the car body is the main source of noise inside the car. The sound insulation performance of damping materials is of great significance to improving the sound field environment in the car. It provides a reference basis for the low-noise design of rail transit trains and is an important direction to solve the noise in the car. At present, there are mainly studies on the internal damping of engineering materials, such as research on the loss factor and hysteresis of aluminum, magnesium, steel, zinc, glass, etc., and the damping mechanism, formula, ad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/04C08L23/08C08L53/02C08L23/06C08K5/20C08K3/26C08J9/12
CPCC08J9/0028C08J9/0061C08J9/0066C08J9/0095C08J9/122C08J2203/06C08J2203/08C08J2323/08C08J2353/02C08J2375/04C08J2423/08C08J2453/02Y02P20/54
Inventor 方举何斌段启松黄林刘祖俊
Owner ANHUI ZHICHENG ELECTROMECHANICAL SPARE PARTS
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