Heat dissipating elastic body composition and heat dissipating elastic body realized therefrom

A technology of elastomers and compositions, applied in the field of heat-dissipating elastomer compositions and heat-dissipating elastomers formed therefrom, can solve problems such as functional decline, damage to heating elements, inability to absorb physical stimuli such as vibration and impact, and minimize noise. the effect of

Active Publication Date: 2019-07-16
AMOGREENTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, since the material of the metal is hard and strong, it cannot absorb physical stimuli such as vibrations and shocks applied from the outside, and the physical stimuli applied to the heat dissipation component are directly transmitted to the heating element adjacent to it, so there may be damage to the heating element, Problems that cause functional degradation, which may be exacerbated in cases where the heating element is a small, complex item such as an electronic component
[0005] In addition, the heating element and the heat radiating part cannot be completely adhered to each other. If there is a gap, there is a danger that the vibration caused by vibration may cause greater damage to the heating element.

Method used

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  • Heat dissipating elastic body composition and heat dissipating elastic body realized therefrom
  • Heat dissipating elastic body composition and heat dissipating elastic body realized therefrom
  • Heat dissipating elastic body composition and heat dissipating elastic body realized therefrom

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0163] After adding 100 parts by weight of methyl vinyl silicone rubber with a weight average molecular weight of 540000 and a viscosity of 10000000cps into the kneader as the main resin, add 22 parts by weight of a specific surface area of ​​275m 2 / g, fumed silica with an average particle diameter of 12nm was used as a filling enhancer, and 6.25 parts by weight of methyl vinyl silicon with a degree of polymerization of 17 was added as a physical property enhancing component and kneaded for 90 minutes. Then, 150 parts by weight of alumina having an average particle diameter of 8 μm relative to 100 parts by weight of the main component resin was added to the kneader and mixed. The mixed mixture is mixed under the condition of 2-Roll, while adding 0.31 parts by weight as organic peroxide 2,5-dimethyl-2,5-bis( tert-butyl peroxy) hexane (2,5-dimethyl-2,5-di(t-butyl peroxy) hexane) was used as vulcanizing agent and mixed and defoamed, thus prepared at a temperature of 25 ℃ with a ...

Embodiment 2～3

[0166] Preparation was carried out in the same manner as in Example 1, and as shown in Table 1 below, heat dissipation elastomers as shown in Table 1 below were prepared by changing the composition of the heat dissipation elastomer composition.

experiment example 1

[0170] The following physical property evaluations were performed on the heat-dissipating elastic bodies prepared in Examples 1 to 3 and Comparative Examples 1 and 2, as shown in Table 1.

[0171] First, the thermal conductivity was measured by the method of ASTM E1461. In addition, the hardness was measured with a durometer (Shore-A). In addition, the tensile strength and elongation were measured with a tensile testing machine (UTM).

[0172] Table 1

[0173]

[0174] As can be confirmed in the table, with respect to Comparative Example 1 and Comparative Example 2 containing more heat-dissipating fillers than the content of the present invention, Examples 1 to 3 are all excellent in thermal conductivity, hardness, tensile strength and elongation. In particular, it was confirmed that in the case of Comparative Example 1, hardness, tensile strength, and elongation other than thermal conductivity were somewhat superior to those of Example 1, but the decrease in thermal cond...

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Abstract

Provided is a heat dissipating elastic body composition. According to an embodiment of the present invention, the heat dissipating elastic body composition comprises: an elastic matrix forming component including a main material resin and a vulcanizing agent; and a heat dissipating filler. According to the present invention, this heat dissipating elastic body can protect a heating element from physical stimulation, such as vibration or impact, transferred from the outside to a heat dissipating body, and at the same time can rapidly conduct and radiate heat generated from the heating element. In addition, separation between the heating element and an exterior material or heat dissipating member and the like disposed adjacent / close to the heating element is minimized, and thus vibration caused by physical stimulation applied from the outside and noise caused by the vibration can be minimized. Moreover, deterioration caused by heat generated by the heating element or external chemical stimulation is minimized, and the heat dissipating elastic body can be easily moulded in various shapes. Accordingly, the heat dissipating elastic body can be widely applied to industries requiring heatdissipation.

Description

technical field [0001] The present invention relates to a heat-dissipating elastomer composition, and in more detail to a heat-dissipating elastomer composition and a heat-dissipating elastic body formed therefrom, that is, heat is dissipated through an external material arranged in close contact with a heating element, a radiator, etc. body to minimize the influence of physical stimuli such as vibration transmitted from the outside to the heating element, can effectively release the heat of the heating element to the outside, and has excellent heat resistance and chemical resistance. Background technique [0002] Recently, as various electronic components used in electronic equipment tend to be miniaturized and complicated, there is a problem that functions are easily degraded or lost due to external stimulation. In particular, in the case where there is vibration or shock applied from the outside during use of the electronic device or there is a component that induces vibr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/00C08K3/00C08K3/22C08K5/14C08K3/30C08L19/00C08K3/36C08K3/26H01M10/6556H01M10/6551
CPCH01M10/6551H01M10/6556C08K3/00C08K3/22C08K3/26C08K3/30C08K3/36C08K5/14C08L19/00C08L83/00C08L83/04C08G77/12C08K2003/2227Y02E60/10C08K3/013C08K2201/001H01M10/613B29B7/90B29K2083/00B29K2509/02B29K2995/0046C08G77/20C08J3/203C09K5/14
Inventor 李桓九黄胜载金范竣黄文暎
Owner AMOGREENTECH CO LTD
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