Method for improving toughness of heat-resisting phenolic resin

A technology of phenolic resin and toughness, which is applied in the field of improving the toughness of heat-resistant phenolic resin. It can solve the problems that the impact resistance and heat resistance of phenolic resin do not meet the needs of use, so as to enhance internal bonding force, enhance mechanical strength, and improve thermal fading. Effect

Inactive Publication Date: 2019-03-08
合肥绿普包装材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for improving the toughness of heat-resistant phenolic resins in view of the problem that the impact resistance and heat resistance of existing phenolic resins do not meet the needs of use

Method used

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  • Method for improving toughness of heat-resisting phenolic resin

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Embodiment 1

[0041] A method for improving the toughness of heat-resistant phenolic resin, comprising the steps of:

[0042] (1) Including the following raw materials in parts by weight, 42 parts of phenolic resin, 8 parts of hydroxy (meth)acrylate, 14 parts of sepiolite fiber, 4 parts of 2-acrylamide-2-methylpropanesulfonic acid, chitosan 8 parts of magnesium chelate, 4 parts of carbon disulfide, 2 parts of dioctadecyl dimethyl ammonium chloride, 2.5 parts of aromatic oil, 3.9 parts of stabilizer, 3 parts of antioxidant, 0.6 part of release agent, 1.2 parts of accelerator share;

[0043] (2) Mix butyl titanate with ethanol equivalent to 3 times its weight evenly, then add sepiolite fiber to obtain a solid-liquid mass ratio of 1:4, stir for 12 hours, filter, and place the obtained filtrate in a radiation Irradiation treatment is carried out under an irradiation cobalt source device with a dose of 25kGy, and modified sepiolite fibers are obtained after completion;

[0044] (3) Stir carbon...

Embodiment 2

[0051] A method for improving the toughness of heat-resistant phenolic resin, comprising the steps of:

[0052] (1) Including the following raw materials in parts by weight, 40 parts of phenolic resin, 10 parts of hydroxy (meth)acrylate, 12 parts of sepiolite fiber, 5 parts of 2-acrylamide-2-methylpropanesulfonic acid, chitosan 6 parts of magnesium chelate, 2 parts of carbon disulfide, 1 part of dioctadecyl dimethyl ammonium chloride, 2.8 parts of aromatic oil, 3.4 parts of stabilizer, 3.2 parts of antioxidant, 0.4 part of release agent, 0.8 part of accelerator share;

[0053] (2) Mix butyl titanate with ethanol equivalent to 3 times its weight evenly, then add sepiolite fiber to obtain a solid-liquid mass ratio of 1:3, stir for 16 hours, filter, and place the obtained filtrate in a radiation Irradiation treatment is carried out under the irradiation cobalt source device whose irradiation dose is 28kGy, and the modified sepiolite fiber is obtained after completion;

[0054] ...

Embodiment 3

[0061] A method for improving the toughness of heat-resistant phenolic resin, comprising the steps of:

[0062] (1) Including the following raw materials in parts by weight: 45 parts of phenolic resin, 6 parts of hydroxy (meth)acrylate, 16 parts of sepiolite fiber, 3 parts of 2-acrylamide-2-methylpropanesulfonic acid, chitosan 10 parts of magnesium chelate, 6 parts of carbon disulfide, 3 parts of dioctadecyl dimethyl ammonium chloride, 2.2 parts of aromatic oil, 4.4 parts of stabilizer, 2.8 parts of antioxidant, 0.8 part of release agent, 1.6 parts of accelerator share;

[0063] (2) Mix butyl titanate with ethanol equivalent to 3 times its weight evenly, then add sepiolite fiber to obtain a solid-liquid mass ratio of 1:5, stir for 10 hours, filter, and place the obtained filtrate in a radiation Irradiation treatment is carried out under the irradiation cobalt source device whose irradiation dose is 22kGy, and the modified sepiolite fiber is obtained after completion;

[0064...

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Abstract

The invention belongs to the technical field of processing of heat-resisting phenolic resin and specifically relates to a method for improving the toughness of the heat-resisting phenolic resin. The method comprises the following steps: preparation for raw materials, processing of modified sepiolite fibers, preparation of pre-mixed solution and preparation of the heat-resisting phenolic resin. Compared with the prior art, the method has the following advantages: the sepiolite fibers are processed by butyl titanate-ethanol mixed solution, and the processed sepiolite fibers are matched with (methyl) acrylate-hydroxy ester, so that the internal binding force of a composite material can be enhanced, and the impact energy can be effectively absorbed; through reasonable match of the raw materials, the mechanical strength, fire resistance and aging resistance of the material are enhanced, the heat fading is obviously improved; therefore, the heat-resisting phenolic resin can be used for the fields of fireproof interior and exterior wallboards, equipment materials suffering from high impact, base materials of brake pads and clutch plates, aerospace and the like.

Description

technical field [0001] The invention belongs to the technical field of processing heat-resistant phenolic resins, and in particular relates to a method for improving the toughness of heat-resistant phenolic resins. Background technique [0002] Phenolic resin has good compressive strength, solvent resistance, flame retardancy, etc., but due to the defects in the molecular structure of ordinary phenolic resin, it has high hardness, brittle quality, low adhesion, poor heat resistance, and the working temperature exceeds 250 A series of shortcomings such as severe thermal decomposition at ℃ can no longer meet the needs of the existing industry. Modification is an effective way to improve the heat resistance and toughness of phenolic resins. In the prior art, phenolic resins have been modified and modified with inorganic substances according to different needs. Organic matter modification, in actual production, some workpieces require composite materials to have certain flame re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/06C08L5/08C08L33/14C08K13/06C08K9/04C08K7/10
CPCC08L61/06C08L2201/02C08L2201/08C08L2205/035C08L5/08C08L33/14C08K13/06C08K9/04C08K7/10
Inventor 张腾飞
Owner 合肥绿普包装材料有限公司
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