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Wide-temperature-domain high-damping environment-friendly damping material for electronic product and preparation method thereof

A technology for electronic products and damping materials, applied in the field of wide temperature range high damping environmental protection damping materials and their preparation, can solve the problems of inability to meet the requirements of complex and harsh environments, inability to meet environmental protection requirements, low damping and vibration reduction factors, etc., and achieve environmental protection. The effect of good performance, large resistance and high damping factor

Active Publication Date: 2013-05-22
AEROSPACE RES INST OF MATERIAL & PROCESSING TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The applicable temperature of existing damping materials in China is generally around -30~+100℃, and the damping factor β is only up to about 0.2. Either the applicable temperature range is narrow or the damping and vibration reduction factor is low, which cannot achieve good damping in a wide temperature range. The vibration damping performance has good mechanical properties, and it cannot meet the corresponding environmental protection requirements. Compared with the performance of foreign damping materials, the gap is relatively large, and it can no longer meet the use requirements of complex and harsh environments. Therefore, it is urgent to improve the existing materials. Invention Develop a damping material with a wider temperature range and a higher damping factor to meet the needs of electronic equipment and instruments

Method used

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  • Wide-temperature-domain high-damping environment-friendly damping material for electronic product and preparation method thereof
  • Wide-temperature-domain high-damping environment-friendly damping material for electronic product and preparation method thereof
  • Wide-temperature-domain high-damping environment-friendly damping material for electronic product and preparation method thereof

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preparation example Construction

[0034] Such as figure 1 Shown is the flow chart of the preparation process of the damping material of the present invention. The preparation method of the wide temperature range high damping environmental protection damping material for electronic products of the present invention includes the following steps:

[0035] Step (1), raw material treatment: In a fume hood or on a well-ventilated platform, crush the massive brominated p-tertoctylphenol formaldehyde resin, and after sieving, the diameter of the resin particles is required to be no more than 10mm; Wear-resistant carbon black is placed in an oven for drying, the drying temperature is 100-120°C, and the drying time is 4h±10min.

[0036] Step (2), batching: batching is carried out according to the formula, and a balance is used to accurately weigh various raw materials when batching.

[0037] Step (3), blending and mixing rubber: First, add the butyl rubber, brominated p-teroctyl formaldehyde resin, anti-aging agent, di...

Embodiment 1

[0042] (1) Formula components and content (mass percentage%):

[0043] 46% of butyl rubber component, 4.6% of di-octyl sebacate, 18.3% of olfactory p-tetyl phenolic thiol, 0.5% of anti-aging agent Sp-L, 13.8% of high wear-resistant carbon black N330, Zinc oxide 2.3%, stearic acid 0.7%, small organic molecule AO60 13.8%.

[0044] (2), preparation process:

[0045]On the 16-inch open mill, add the above-mentioned butyl rubber, brominated p-teroctyl formaldehyde resin, anti-aging agent Sp-L, diisooctyl sebacate, zinc oxide, stearic acid and organic small oil in sequence. Molecule AO60 is compounded to obtain masterbatch, and the roller temperature is 55°C during compounding. Then add dried high wear-resistant carbon black N330 to the masterbatch on a 10-inch open mill and mix with a roller temperature of 55°C.

[0046] The mixed rubber material is parked at room temperature for 12 hours, and then re-mixed and rolled out on a 10-inch open rubber mixer. The temperature of the ro...

Embodiment 2

[0051] (1), formula components and content (mass percentage%):

[0052] 44% butyl rubber component, 4.4% di-octyl sebacate, 17.6% olfactory p-tert-octyl phenolic sulfatide, 0.4% anti-aging agent Sp-L, 17.5% high wear-resistant carbon black N660, Zinc oxide 2.2%, stearic acid 0.7%, small organic molecule AO60 13.2%.

[0053] (2), preparation process:

[0054] On the 16-inch open mill, add the above-mentioned butyl rubber, brominated p-teroctyl formaldehyde resin, anti-aging agent Sp-L, diisooctyl sebacate, zinc oxide, stearic acid and organic small oil in sequence. Molecule AO60 is compounded to obtain a masterbatch, and the roller temperature is 50°C during compounding. Then add the dried high wear-resistant carbon black N660 to the masterbatch on a 10-inch open mill for mixing, and the roller temperature is 55°C.

[0055] The mixed rubber material is parked at room temperature for 12 hours, and then re-mixed and rolled out on a 10-inch open rubber mixer. The temperature of...

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Abstract

The invention relates to a wide-temperature-domain high-damping environment-friendly damping material for an electronic product and a preparation method thereof. The damping material is prepared from the following components in percentage by mass: 40-48% of butyl rubber, 4.2-5% of dioctyl sebacate, 16-19% of brominated p-tert-octyl phenolic resin, 0.3-0.6% of an anti-aging agent, 10-25% of carbon black, 2.0-2.5% of zinc oxide, 0.6-0.8% of stearic acid and 12-15% of an antioxidant. The damping material has good damping vibration reduction performance and good mechanical property in a relatively wide temperature range, and has wide application temperature range, high damping factor and good environmental protection performance, conforms to the requirements of European Union environmental directive ROHS, meets the needs in using various electronic equipment, can be popularized to the vibration control and noise control of the instruments and electronic systems on airplanes, ships and vehicles, and has broad application prospect.

Description

technical field [0001] The invention belongs to the field of formula design of damping materials, and relates to a wide temperature range high damping environment-friendly damping material for electronic products and a preparation method thereof. Background technique [0002] The damping and vibration reduction technology developed based on viscoelastic damping materials is an effective way to control vibration and noise, especially the vibration and noise of the cabinet caused by the rotation of the fan in the data storage system of various servers, computers, workstations, switches and other IT equipment. Seriously affect the service life of the hard disk, the demand for high-efficiency damping and vibration reduction products is very urgent, and as the application environment of electronic equipment is facing a complex use environment with lower low temperature and higher high temperature and environmental protection requirements, extremely high requirements are placed on ...

Claims

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Application Information

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IPC IPC(8): C08L23/22C08L61/14C08K13/02C08K5/11C08K3/04C08K3/22C08K5/09C08J3/22B29B7/72
Inventor 黄加才王建月刘群策张宇王立峰陈江涛张强
Owner AEROSPACE RES INST OF MATERIAL & PROCESSING TECH
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