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High-temperature resistant epoxy-titanium silicone resin capable of being solidified at a room temperature, preparation method thereof and application thereof

A room temperature curing, epoxy resin technology, applied in the direction of coating, etc., can solve the problems of high production cost and expensive price, and achieve the effect of low price, good light stability and easy availability of raw materials

Inactive Publication Date: 2012-07-25
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, in the preparation of phenyl-containing epoxy-modified silicone resins, the price of the raw material phenylchlorosilane or phenylalkoxysilane used is relatively expensive, resulting in high preparation costs.

Method used

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  • High-temperature resistant epoxy-titanium silicone resin capable of being solidified at a room temperature, preparation method thereof and application thereof
  • High-temperature resistant epoxy-titanium silicone resin capable of being solidified at a room temperature, preparation method thereof and application thereof
  • High-temperature resistant epoxy-titanium silicone resin capable of being solidified at a room temperature, preparation method thereof and application thereof

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Experimental program
Comparison scheme
Effect test

preparation example Construction

[0042] 1. Preparation of epoxy-titanium silicone resin

[0043] (1) Preparation of resin by polycondensation reaction

Embodiment 1

[0045] Step 1. Synthesis of modified resin

[0046] Put 0.50g of epoxy resin E20, 0.50g of titanium-containing silicone resin, and 2.00g of cyclohexanone into the four-neck flask, and heat to 70°C under slow mechanical stirring to dissolve. Then, 0.015 g (0.5% by mass) of tetra-n-butyl titanate was added to the solution, stirred rapidly and heated to 160° C., then kept the temperature constant, and carried out reflux reaction for 2 h. After the reaction was completed, the reaction solution was a clear and transparent light yellow liquid.

[0047] Step 2. Distillation of the reaction solution

[0048] The reaction device in step 1 was changed to a vacuum distillation device, and the reaction liquid in step 1 was subjected to vacuum distillation, wherein the pressure was 0.050 MPa, and when the temperature rose to 130° C., low molecular weight substances were distilled out. After distilling for a certain period of time, stop heating until no distillate flows out, and the obtaine...

Embodiment 2

[0050] Step 1. Synthesis of modified resin

[0051] Put 0.70g of epoxy resin E44, 1.40g of titanium-containing silicone resin, and 2.10g of cyclohexanone into the four-neck flask, and heat to 70°C under slow mechanical stirring to dissolve. Then, 0.042 g (1.0% by mass) of tetra-n-butyl titanate was added to the solution, stirred rapidly and heated to 170° C., keeping the temperature constant, and performing reflux reaction for 2 h. After the reaction was completed, the reaction solution was a clear and transparent light yellow liquid.

[0052] Step 2. Distillation of the reaction solution

[0053] The reaction device in step 1 was changed to a vacuum distillation device, and the reaction liquid in step 1 was subjected to vacuum distillation, wherein the pressure was 0.060 MPa, and when the temperature rose to 140° C., low molecular weight substances were distilled out. After distilling for a certain period of time, stop heating until no distillate flows out, and the obtained...

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Abstract

The invention discloses high-temperature resistant epoxy-titanium silicone resin capable of being cured at a room temperature, a preparation method thereof and application thereof. The preparation method comprises that an epoxy resin and an organic silicon resin containing titanium undergo a polycondensation reaction or a ring-opening polymerization of an epoxy group in organic solvent to acquireepoxy-titanium silicone resin with adjustable polymerization degree, number-average molecular weight and viscosity. The application of the epoxy-titanium silicone resin comprises that: a diluent and a curing agent are added into the epoxy-titanium silicone resin to prepare an epoxy-titanium silicone resin composition; and the epoxy-titanium silicone resin composition is cured to prepare a coatingof the high-temperature resistant epoxy-titanium silicone resin capable of being solidified at a room temperature. The epoxy-titanium silicone resin prepared by the method has high light stability and environmental friendliness; and the synthetic route is simple and direct, the raw materials are readily available, the price is low, and the prepared epoxy-titanium silicone resin is low-cost and high-performance resin, and is suitable for mass preparation and industrial production.

Description

technical field [0001] The invention belongs to the technical field of light industry and chemical materials. The invention relates to a high-temperature-resistant epoxy graft modified titanium-containing organic silicon resin and a preparation method thereof. The modified silicon resin can be used as a matrix resin of a high-temperature-resistant paint. Background technique [0002] High-temperature-resistant coatings are widely used, and are suitable for high-temperature protection of high-temperature parts such as automobile exhaust pipes, blast furnaces, coke ovens, petroleum crackers, and steel chimneys. With the continuous development of my country's modern industry and the continuous deepening of opening to the outside world, especially in metallurgy, petrochemical, energy, new materials and other industries, new processes and new equipment continue to emerge, and heat-resistant coatings are being favored. [0003] Generally speaking, coatings that can withstand high...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G81/00C09D187/00
Inventor 吴雅红王雪镅唐博志廖昔虬杨佩铃陈林荣郝志峰余坚余林
Owner GUANGDONG UNIV OF TECH