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Heatproof environment-friendly material for preventing noise pollution and manufacturing method thereof

An environmentally friendly material and anti-noise technology, which is applied in the direction of liquid crystal materials, chemical instruments and methods, etc., can solve the problems of high toxicity of combustion products, potential safety hazards, and difficulty in molding, so as to achieve increased sound insulation effect, good sound insulation effect, and foaming The effect of a large number

Inactive Publication Date: 2017-06-06
福州市天伟达电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But all have obvious inherent defects: gypsum board, hollow double-glazed windows and plastic-steel casement sealed windows have poor toughness and are easily broken; soft sound-absorbing materials, sound-absorbing cotton, and sponge are too soft to form; sound-absorbing cotton, sponge, PVC Ethylene foam boards, soft sound-absorbing materials, etc. have low ignition points, are easy to burn, and have potential safety hazards, and the combustion products are highly toxic and not environmentally friendly.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A method for manufacturing a heat-resistant and environmentally-friendly material for preventing noise pollution, including the following steps:

[0023] 1) Preparation of raw materials, tooling and equipment

[0024] ① Dry the fully aromatic liquid crystal polymer to control the liquid water content to not higher than 0.02%;

[0025] ②Hydroxypropyl methyl cellulose, fluorocarbon, liquid ethylene propylene rubber and the dried liquid crystal polymer obtained in step ① are uniformly mixed to obtain a raw material mixture for use;

[0026] ③Preheat the mold to 125℃;

[0027] ④ Preheat the barrel used to contain raw materials in the equipment to 315°C;

[0028] 2) Plasticization

[0029] ①Rotate the barrel to control the speed of 130rpm;

[0030] ② Fill the raw material mixture obtained in step ② of 1) into the barrel, control the temperature of the barrel at the front section 315°C, the middle section 335°C, and the rear section 340°C, and the heating residence time in the barrel is 3...

Embodiment 2

[0037] The main body is the same as in Example 1, the differences are:

[0038] Use non-wholly aromatic liquid crystal polymer;

[0039] 1) Preparation of raw materials, tooling and equipment

[0040] ③Preheat the mold to 115℃;

[0041] ④ Preheat the barrel used to contain raw materials in the equipment to 310°C;

[0042] 2) Plasticization

[0043] ① Rotate the barrel to control the speed of 120rpm;

[0044] ② Fill the raw material mixture obtained in step ② of 1) into the barrel, control the temperature of the barrel at the front section 310°C, the middle section 330°C, and the rear section 335°C, and the heating residence time in the barrel is 35 minutes to complete the plasticization process. Obtain the compound to be injected;

[0045] 1) Among the raw materials in step ②, liquid crystal polymer accounted for 88.5%, hydroxypropyl methylcellulose accounted for 1.8%, fluorocarbon accounted for 6.2%, and liquid ethylene propylene rubber accounted for 3.5%.

Embodiment 3

[0047] The main body is the same as in Example 1, the differences are:

[0048] 1) Preparation of raw materials, tooling and equipment

[0049] ③Preheat the mold to 130°C;

[0050] ④ Preheat the barrel used to contain raw materials in the equipment to 325°C;

[0051] 2) Plasticization

[0052] ① Rotate the barrel to control the speed of 140rpm;

[0053] ② Fill the raw material mixture obtained in step ② of 1) into the barrel, control the temperature of the barrel at the front section 325°C, the middle section 340°C, and the rear section 350°C. The heating residence time in the barrel is 38 minutes, and the plasticization process is completed. Obtain the compound to be injected;

[0054] 1) Among the raw materials in step ②, liquid crystal polymer accounts for 90.5%, hydroxypropyl methylcellulose accounts for 2.5%, fluorocarbons accounts for 4.5%, and liquid ethylene propylene rubber accounts for 2.5%.

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Abstract

The invention relates to a heatproof environment-friendly material for preventing noise pollution and a manufacturing method thereof. The environment-friendly material is prepared from a liquid crystal high-molecular polymer and an additive; the additive comprises a dispersing agent, a physical foaming agent and a flexibilizer; the dispersing agent is hydroxypropyl methyl cellulose; the physical foaming agent is fluorocarbon; and the flexibilizer is liquid ethylene propylene rubber. The various ingredients of the heatproof environment-friendly material for preventing the noise pollution respectively account for the percentage by weight as follows: the liquid crystal high-molecular polymer accounts for 88.5 to 90.5 percent; the hydroxypropyl methyl cellulose accounts for 1.8 to 2.8 percent; the fluorocarbon accounts for 4.5 to 6.2 percent; and the liquid ethylene propylene rubber accounts for 2.5 to 4.4 percent. The heatproof environment-friendly material provided by the invention is good in moldability, tenacity and noise reduction performance, resistant to high temperature, and friendly to the environment.

Description

Technical field [0001] The invention relates to the field of smelting energy saving, in particular to a heat-resistant environmental protection material for preventing noise pollution and a manufacturing method thereof. Background technique [0002] Noise refers to: ① Sounds with chaotic changes in pitch and intensity, and inharmonious sounds. It is caused by the irregular vibration of the sound body (different from the [music sound]). From the perspective of physics: noise is the sound produced when the sound body vibrates irregularly. ② Same as [Noise]: Sound that shouldn't exist in a certain environment. Refers to a noisy, harsh sound. From the perspective of environmental protection: all sounds that hinder people's normal rest, study, and work, and sounds that interfere with the sounds people want to hear, are all noise. Noise is a kind of sound that causes irritability, or is too loud and endangers human health. Noise pollution mainly comes from transportation, vehicle h...

Claims

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Application Information

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IPC IPC(8): C08L101/12C08L1/28C08L23/16C08J9/14C09K19/38B29C45/76B29C45/78B29C45/77
CPCC08L101/12B29C45/76B29C45/77B29C45/78C08J9/146C08J9/148C08J2203/142C08J2203/144C08J2300/12C08J2423/16C08L2201/08C08L2203/14C08L2205/03C08L2205/06C09K19/38C08L1/284C08L23/16
Inventor 张维平
Owner 福州市天伟达电子科技有限公司
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