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Preparation method of high-performance phenol formaldehyde resin/mesoporous molecular sieve composite material

A technology of mesoporous molecular sieve and composite material is applied in the field of in-situ polymerization preparation of high-performance phenolic resin/mesoporous molecular sieve composite material to achieve uniform distribution, solve the dispersion of inorganic particles and stabilize the system.

Inactive Publication Date: 2012-11-28
GUILIN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no report on the preparation of high performance phenolic resin / mesoporous molecular sieve composites by in situ polymerization

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Preparation of thermoplastic phenolic resin / silica-based mesoporous molecular sieve composites by in situ polymerization:

[0020] (1) Put the mesoporous molecular sieve in analytically pure toluene, the mass ratio of mesoporous molecular sieve:toluene is 1:10, ultrasonically disperse for 0.5 hour, in a four-necked reaction flask equipped with a water condenser, heat up to 120°C, Under magnetic stirring, add the silane coupling agent dissolved in analytical pure ethanol drop by drop, the silane coupling agent accounts for 3% of the weight of the mesoporous molecular sieve, stir and keep at a constant temperature for 2 hours, filter with suction, and wash with analytical pure toluene 3 times, drying to obtain a coupling-treated mesoporous molecular sieve;

[0021] (2) Add 3g of silicon-based mesoporous molecular sieves and 90g of phenol (colorless needle-like crystals) to the hydrothermal reaction kettle and blend them. Seal the reaction kettle and place it in an oven at...

Embodiment 2

[0025] Preparation of thermosetting phenolic resin / silica-based mesoporous molecular sieve composites by in situ polymerization:

[0026] (1) Put the mesoporous molecular sieve in analytically pure toluene, the mass ratio of mesoporous molecular sieve:toluene is 1:15, ultrasonically disperse for 1 hour, in a four-necked reaction flask equipped with a water condenser, heat up to 120°C, Under magnetic stirring, add the silane coupling agent dissolved in analytical pure ethanol drop by drop, the silane coupling agent accounts for 3% of the weight of the mesoporous molecular sieve, stir and keep at a constant temperature for 3 hours, filter with suction, and wash with analytical pure toluene 2 times, drying to obtain a coupling-treated mesoporous molecular sieve;

[0027] (2) Add 5g of silicon-based mesoporous molecular sieves and 80g of phenol (colorless needle-like crystals) into the hydrothermal reaction kettle and blend them, seal the reaction kettle and place it in an oven at...

Embodiment 3

[0031] Preparation of thermoplastic phenolic resin / aluminum-based mesoporous molecular sieve composites by in-situ polymerization:

[0032] (1) Put the mesoporous molecular sieve in analytically pure toluene, the mass ratio of mesoporous molecular sieve:toluene is 1:15, ultrasonically disperse for 1 hour, in a four-necked reaction flask equipped with a water condenser, heat up to 120°C, Under magnetic stirring, add the silane coupling agent dissolved in analytical pure ethanol drop by drop, the silane coupling agent accounts for 8% of the weight of the mesoporous molecular sieve, stir and keep at a constant temperature for 3 hours, filter with suction, and wash with analytical pure toluene 3 times, drying to obtain a coupling-treated mesoporous molecular sieve;

[0033] (2) Add 2g of aluminum-based mesoporous molecular sieves coupled in step (1) to the hydrothermal reactor and blend them with 90g of phenol (colorless needle crystals), seal the reactor and place it in an oven a...

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Abstract

The invention discloses a preparation method of a phenol formaldehyde resin / mesoporous molecular sieve composite material, which comprises the following steps: evenly dispersing mesoporous molecular sieves subjected to coupling in a liquid monomer to carry out in-situ polymerization reaction, and reacting with a curing agent to obtain the phenol formaldehyde resin based composite material. In thepreparation process, under the combined action of high-pressure high-temperature treatment and ultrasonic dispersion, the monomer enters the pores of the molecular sieves; and the in-situ polymerization is adopted, so that the inside and outside of the mesoporous molecular sieves are coated by polymers to form the high-performance phenol formaldehyde resin / mesoporous molecular sieve composite material in an organic-inorganic interpenetrating network structure. The invention is applicable to both thermoplastic phenol formaldehyde resin and thermosetting phenol formaldehyde resin; and the mesoporous molecular sieves can be dispersed evenly in the phenol formaldehyde resin base, so that the comprehensive properties of the composite material are obviously enhanced.

Description

technical field [0001] The invention relates to a modification method of phenolic resin, in particular to an in-situ polymerization preparation method of a high-performance phenolic resin / mesoporous molecular sieve composite material. Background technique [0002] Phenolic resin (PF) has many excellent properties, such as high mechanical strength, excellent heat resistance, good dimensional stability and molding processability, etc., and is often used as a matrix resin for friction materials in the automotive industry. Due to its own structural characteristics, such as the tight stacking of rigid aromatic rings connected by methylene groups, the resin matrix is ​​very brittle and has the disadvantage of poor toughness. The heat and oxidation resistance are not ideal, thus affecting its application effect to a certain extent. There are many reports on the modification of phenolic resins with inorganic substances. At present, most of them are modified phenolic resins by addin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G8/10C08K9/06C08K7/26C08K7/24
Inventor 余传柏韦春陆绍荣
Owner GUILIN UNIVERSITY OF TECHNOLOGY
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