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A thermally conductive phenolic resin and its preparation method and lampshade made thereof

A technology of phenolic resin and thermal conductive filler, which is applied in the field of phenolic resin, can solve the problems of shortening the service life of irradiation lamps, unfavorable use of irradiation lamps, poor thermal conductivity, etc., achieve good thermal conductivity, improve thermal conductivity and insulation, and have good thermal conductivity Effect

Active Publication Date: 2021-10-29
NINGBO YINGTAIKE LIGHTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Its shortcoming is that while phenolic resin has high temperature resistance, its thermal conductivity is poor. When it is used as a lampshade / lampshade, the internal heat is difficult to dissipate and the temperature rises quickly, which is not conducive to the use of the irradiation lamp and shortens the service life of the irradiation lamp.

Method used

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  • A thermally conductive phenolic resin and its preparation method and lampshade made thereof
  • A thermally conductive phenolic resin and its preparation method and lampshade made thereof
  • A thermally conductive phenolic resin and its preparation method and lampshade made thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] A lampshade made of thermally conductive modified phenolic resin. The thermally conductive modified phenolic resin is made from raw materials comprising the following parts by mass,

[0064] 100 parts of phenolic resin,

[0065] 5-7 parts of glass fiber,

[0066] Antioxidant 3-5 parts,

[0067] 4-7 parts of lubricant,

[0068] 28-34 parts of thermally conductive filler,

[0069] 0.5-1 part of insulating additive,

[0070] 22-25 parts of epoxy resin,

[0071] 5.5-7.5 parts of curing agent.

[0072] The phenolic resin is Japanese Panasonic Bakelite CN 6575-65G phenolic resin.

[0073] The glass fiber is an alkali-free glass fiber, and the length of the glass fiber is 3 mm, which is a commercially available product of Hangzhou Gaoke Composite Material Co., Ltd.

[0074] The antioxidant is DOPO, namely 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide, which is a commercially available product from Shouguang Weidong Chemical Co., Ltd. Flame Retardant Factory.

[0...

Embodiment 2

[0104] A thermally conductive modified phenolic resin, based on the thermally conductive modified phenolic resin described in Example 1B, the difference is that TiC is used instead of ZrC for the preparation of thermally conductive fillers.

Embodiment 3

[0106] A thermally conductive modified phenolic resin, based on the thermally conductive modified phenolic resin described in Example 1B, the difference is that a single ZrC is replaced by TiC and ZrC to prepare a thermally conductive filler, wherein the mass ratio of TiC and ZrC is as follows .

[0107] Example 3A Example 3B Example 3C Example 3D Mass ratio of TiC and ZrC 1∶1 1∶2 2∶1 2∶3

[0108] The samples prepared from the thermally conductive modified phenolic resin materials obtained in Examples 2 and 3 were tested, and the test results are as follows.

[0109]

[0110] Comparing Example 1B, Example 2 and Example 3, it can be seen that the thermally conductive filler is obtained by coating and modifying ZrC with silane, the density of the thermally conductive filler is reduced, and the thermally conductive filler is more easily mixed with the molten phenolic resin, so that the thermally conductive network chain is in the modified phenoli...

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Abstract

The invention relates to phenolic resin, and discloses a heat-conducting phenolic resin, a preparation method thereof, and a lampshade made thereof. A lampshade is made of heat-conducting modified phenolic resin by compression molding, and the heat-conducting modified phenolic resin consists of the following mass 100 parts of phenolic resin, 5-7 parts of glass fiber, 3-5 parts of antioxidant, 4-7 parts of lubricant, 28-34 parts of thermal conductive filler, 0.5-1 part of insulating additive, epoxy resin 22‑25 parts, 5.5‑7.5 parts of curing agent, ZrC and TiC powders after silane coating and modification are used as thermal conductive fillers, which are uniformly dispersed in the modified phenolic resin together with glass fibers to form uniform, large heat transfer range and thermal conductivity The heat-conducting network chain with good performance makes the modified phenolic resin not only ensure the insulation of the phenolic resin, but also has good thermal conductivity, which in turn makes the lampshade have high strength and good heat dissipation performance.

Description

technical field [0001] The invention relates to a phenolic resin, in particular to a thermally conductive phenolic resin, a preparation method thereof and a lampshade made thereof. Background technique [0002] Phenolic resin is formed by polycondensation reaction of phenol and formaldehyde under the action of an acidic or basic catalyst. Among them, it is divided into linear thermoplastic resin with excessive phenol; and body-shaped thermosetting resin with excessive formaldehyde. In the existing secondary processing and production, linear thermoplastic resins are often used for injection molded parts with complex structures. [0003] The most important feature of phenolic resin is high temperature resistance, even at very high temperatures, it can maintain its structural integrity and dimensional stability. Therefore, phenolic resin is often used to make high temperature resistant components, such as lampshades and lampshades for irradiation lamps. [0004] Its shortcom...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L61/06C08L83/04C08L63/00C08K13/06C08K9/10C08K3/14C08K7/14C08K3/04C08K5/5313C09K5/14F21V3/06
Inventor 陈海军李万翠
Owner NINGBO YINGTAIKE LIGHTING
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