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Phenolic molding compound for supporting contactor contact

A phenolic molding compound, contact support technology, applied in the field of thermosetting plastics, can solve problems such as easy "bulging", contact support stuck, product failure, etc., to achieve the effect of improving thermal conductivity

Pending Publication Date: 2020-05-15
DELIXI ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once the contact support encounters abnormal heating of the contact, it is easy to "bulge" near the heated position, causing the contact support to be stuck and the product to fail

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0021] 25 parts of phenolic resin;

[0022] 25 parts of glass fiber;

[0023] 20 parts of organic fiber (para-aramid fiber);

[0024] 5 parts of thermal modifier (sericite and boron nitride 7:3 high-temperature sintered powder);

[0025] Curing agent (hexamethylenetetramine) 2 parts;

[0026] 0.5 parts of curing accelerator (magnesia);

[0027] Lubricant (2 parts zinc stearate + 1 part stearic acid) 3 parts;

[0028] Flame retardant (10 parts of aluminum hydroxide + 5 parts of magnesium hydroxide) 15 parts.

example 2

[0030] 35 parts of phenolic resin;

[0031] 15 parts of glass fiber;

[0032] 15 parts of organic fiber (para-aramid fiber);

[0033] 10 parts of heat modifier (sericite and boron nitride 7:3 high-temperature sintered powder);

[0034] 5 parts of curing agent (hexamethylenetetramine);

[0035] 1 part of curing accelerator (magnesium oxide);

[0036] Lubricant (zinc stearate) 2 parts;

[0037] Flame retardant (10 parts of aluminum hydroxide + 10 parts of magnesium hydroxide) 20 parts.

example 3

[0039] 45 parts of phenolic resin;

[0040] 5 parts glass fiber;

[0041] 5 parts of organic fiber (para-aramid fiber);

[0042] Thermal modifier (sericite and boron nitride 7:3 high-temperature sintered powder) 15 parts;

[0043] Curing agent (hexamethylenetetramine) 8 parts;

[0044] 2 parts of curing accelerator (magnesium oxide);

[0045] Lubricant (stearic acid) 1 part;

[0046] Flame retardant (15 parts of aluminum hydroxide + 10 parts of magnesium hydroxide) 25 parts.

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PUM

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Abstract

The invention relates to the technical field of thermosetting plastics, and particularly discloses a phenolic molding compound for contactor contact support. The phenolic molding compound is preparedfrom the following components in parts by weight: 25-45 parts of phenolic resin, 5-25 parts of glass fibers, 5-20 parts of organic fibers, 5-15 parts of a thermal modifier, 2-8 parts of a curing agent, 0.5-2 parts of a curing accelerator, 1-3 parts of a lubricant and 15-25 parts of a flame retardant, wherein the organic fibers are para-aromatic polyamide fibers. By adopting the scheme, the invention provides the phenolic molding compound which is low in bulging degree when resisting local (contact) high-temperature impact.

Description

technical field [0001] The invention relates to the technical field of thermosetting plastics, in particular to a phenolic molding compound for supporting contacts of a contactor. Background technique [0002] At present, phenolic molding compound is the largest field of consumption of phenolic resin in my country. Among the member units of China Phenolic Industry Association, there are more than 30 manufacturers specializing in the production of phenolic molding compounds, and there are more than ten companies with an annual output of more than 20,000 tons. Its products are mainly used in low-voltage electrical fields. [0003] Phenolic molding compound is generally based on novolac resin, filled with organic materials and inorganic materials, and then added curing agent, curing accelerator, lubricant, etc., through a certain process. [0004] There are mainly three types of materials supported by the contacts of AC contactors currently on the market. The first category ...

Claims

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Application Information

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IPC IPC(8): C08L61/06C08L77/10C08K7/14C08K3/34C08K3/38C08K3/22C08K9/12C08K13/06
CPCC08L61/06C08K2003/385C08K2003/2227C08K2003/2224C08L2205/16C08L2201/08C08L77/10C08K7/14C08K3/34C08K3/38C08K3/22C08K9/12C08K13/06
Inventor 林建策张生
Owner DELIXI ELECTRIC
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