Boron/cardanol/nano-material modified phenolic resin material and preparation method therefor

A nano-material and phenolic resin technology, which is applied in the field of boron/cardanol/nano-material modified phenolic resin material and its preparation, can solve the problems of low molecular weight of phenolic resin, limited modification effect, harsh reaction conditions, etc., and achieve improved durability. Heat resistance and toughness, excellent thermal stability, and simple production equipment

Inactive Publication Date: 2015-10-21
武汉鑫兴微联新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Boron-modified phenolic resin has not been widely used in China so far. The important reason is that the above three methods have the following shortcomings: the esterification reaction of boric acid in the boric acid phenolic ester method is relatively difficult, the reaction conditions are relatively harsh, and the reaction between boric acid phenolic ester and aldehyde If formaldehyde aqueous solution is used, boric acid phenol ester is easy to hydrolyze, and the modification effect is limited. If paraformaldehyde is used, the viscosity of the system is very high, mass and heat transfer are difficult, the reaction process is difficult to control, and it is easy to detonate and form water. Causes the hydrolysis of boric acid phenol ester; the salicyl alcohol method has a large viscosity in the later

Method used

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  • Boron/cardanol/nano-material modified phenolic resin material and preparation method therefor
  • Boron/cardanol/nano-material modified phenolic resin material and preparation method therefor
  • Boron/cardanol/nano-material modified phenolic resin material and preparation method therefor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A boron / cardanol / nano material modified phenolic resin material, prepared by the following method:

[0034] (1) Esterification reaction of cardanol / phenol-boric acid: 0.01 part of cardanol, 7 parts of boric acid, 1 part of acetic acid and 50 parts of water-carrying agent were refluxed at 100 ° C for 3 hours, and then divided into 5 batches Add 20 parts of phenol in each batch, continue to react for 3 hours, then raise the temperature to 130°C, distill 5 parts of water-carrying agent, and then lower the temperature to below 60°C;

[0035] (2) Polymerization: Add 16 parts of paraformaldehyde, 5 parts of nano-SiO modified by silane coupling agent to the reactant obtained in step (1) 2 , 0.01 part of calcium chloride, reflux at 90°C for 5 hours of water separation reaction, after the reaction is completed, heat up to 140°C and distill the remaining water-carrying agent, then cool down to room temperature and discharge, that is, boron / cardanol / nanomaterial Modified phenolic...

Embodiment 2

[0037] A boron / cardanol / nano material modified phenolic resin material, prepared by the following method:

[0038] (1) Esterification reaction of cardanol / phenol-boric acid: return 6 parts of cardanol, 15 parts of boric acid, 2 parts of oxalic acid, 1 part of hydrochloric acid, 1 part of sulfuric acid, and 100 parts of water-carrying agent at a temperature of 115 ° C to separate water React for 0.5 hours, then add 20 parts of phenol in 5 batches, continue the reaction for 5 hours, raise the temperature to 140°C, distill 90 parts of water-carrying agent, and then cool down to below 60°C;

[0039] (2) Polymerization: Add 25 parts of paraformaldehyde, 8 parts of nano-SiO modified by silane coupling agent to the reactant obtained in step (1) 2 , 1.5 parts of barium chloride, 1.3 parts of manganese sulfate, reflux at 105°C for water separation for 1 hour, after the reaction, heat up to 140°C to distill off the remaining water-carrying agent, then cool down to room temperature and dis...

Embodiment 3

[0041] A boron / cardanol / nano material modified phenolic resin material, prepared by the following method:

[0042] (1) Esterification reaction of cardanol / phenol-boric acid: 40 parts of cardanol, 22 parts of boric acid, 2 parts of oxalic acid, 3.2 parts of trifluoroacetic acid, 2.6 parts of methyl silicic acid, 500 parts of water-carrying agent at 130 ° C Reflux and water separation reaction at high temperature for 5 hours, then add 20 parts of phenol in 5 batches in each batch, continue the reaction for 1 hour, then raise the temperature to 140°C, distill 25 parts of water-carrying agent, and then cool down to below 60°C;

[0043] (2) Polymerization: Add 54 parts of paraformaldehyde, 16 parts of nano-SiO modified by silane coupling agent in the reactant obtained in step (1) 2 , 1 part of copper chloride, 6.2 parts of magnesium chloride, reflux and water separation reaction at 130 °C for 2.5 hours, after the reaction, heat up to 140 °C to distill the remaining water-carrying a...

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Abstract

The invention belongs to the field of modified phenolic resin, specifically relates to a boron/cardanol/nano-material modified phenolic resin material and a preparation method therefor. The boron/cardanol/nano-material modified phenolic resin material is prepared by using the following method: (1) implementing refluxing and water separation reaction on cardanol, a catalyst, borate and a water-taking reagent at 100-130 DEG C for 0.5-5 hours, then adding phenol in portions and continuing the reaction for 1-5 hours; raising the temperature to 130-150 DEG C, and distilling part of the water-taking reagent; and (2) adding paraformaldehyde, a nano-material and the catalyst into a reactant obtained in step (1), implementing refluxing and water separation reaction at 100-130 DEG C for 1-5 hours, raising the temperature to 140 DEG.C, distilling the remaining water-taking reagent, discharging the product to obtain the boron/cardanol/nano-material modified phenolic resin material. The boron/cardanol/nano-material modified phenolic resin material has excellent thermal stability, mechanical properties and friction properties, and can be applied to the field of friction materials.

Description

technical field [0001] The invention belongs to the modification field of phenolic resin, and in particular relates to a boron / cardanol / nano material modified phenolic resin material and a preparation method thereof. Background technique [0002] As one of the three synthetic thermosetting resins, phenolic resin has easy to obtain raw materials, convenient synthesis, low price, good mechanical properties, weather resistance, corrosion resistance, water resistance and certain heat resistance, and is widely used in transportation , aviation industry, military equipment, electronic appliances and other industries. However, with the development of industry, especially technological innovations such as the automobile industry and high-speed trains, new requirements have been put forward for high-performance phenolic resins. The traditional pure phenolic resin is easy to oxidize due to the easily oxidized phenolic hydroxyl group and methylene group, and its heat resistance is aff...

Claims

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Application Information

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IPC IPC(8): C08L61/14C08K9/06C08K3/36C08G8/28C09K3/14
Inventor 夏涛黄进石晓敏刘扬郭飞
Owner 武汉鑫兴微联新材料有限公司
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