Preparation and application of long-acting anticorrosion temperature-resistant coating

A coating and silicone technology, applied in the field of preparation of long-acting anti-corrosion and heat-resistant coatings, the above-mentioned phenolic epoxy modified silicone resin, can solve the problem of less coatings, etc.

Active Publication Date: 2013-04-24
MARINE CHEM RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are few research reports on novolak epox

Method used

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  • Preparation and application of long-acting anticorrosion temperature-resistant coating
  • Preparation and application of long-acting anticorrosion temperature-resistant coating
  • Preparation and application of long-acting anticorrosion temperature-resistant coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Embodiment 1: Preparation of Novolac Epoxy Modified Silicone Resin

[0052] Add 20 parts of xylene to 80 parts of F44 (domestic) and mix and dissolve under heating and stirring. The solution is a uniform light yellow transparent liquid. The cyclohexanone is stirred and heated up, and reacted at 80-100° C. for 8-10 hours. Obtain 200 parts of transparent homogeneous viscous novolak epoxy modified silicone resin. Measured by infrared absorption spectrum at 1128cm -1 、1095cm -1 and 1022cm -1 The characteristic absorption peak of silicon-oxygen bond appears, and the 918 cm -1 and 910cm -1 The characteristic absorption peak of the nearby epoxy group weakens and disappears, which proves that the corresponding novolac epoxy modified silicone resin target product is obtained through the synthesis reaction.

Embodiment 2

[0053] Embodiment 2: Preparation of Novolac Epoxy Modified Silicone Resin

[0054] Add 10 parts of benzene to mix and dissolve 40 parts of DEN438 (Dow company in the United States) under heating and stirring. The solution is uniform light yellow transparent liquid. company), and 109.5 parts of butyl acetate were stirred and heated up, and reacted at 100-120°C for 6-8 hours. Obtain 200 parts of transparent homogeneous viscous novolak epoxy modified silicone resin. Measured by infrared absorption spectroscopy at 1130cm -1 、1100cm -1 and 1040cm -1 The characteristic absorption peak of silicon-oxygen bond appears, and the 918 cm -1 and 910cm -1 The characteristic absorption peak of the nearby epoxy group weakens and disappears, which proves that the corresponding novolac epoxy modified silicone resin target product is obtained through the synthesis reaction.

Embodiment 3

[0055] Embodiment 3: the preparation of novolak epoxy modified silicone resin

[0056] Add 30 parts of xylene to 70 parts of EPN1180 (Swiss Ciba Company) and mix and dissolve under heating and stirring. The solution is a uniform light yellow transparent liquid. ), and 48.5 parts of cyclopentanone were stirred and heated up, and reacted at 90-110° C. for 7-9 hours. Obtain 200 parts of transparent homogeneous viscous novolak epoxy modified silicone resin. Measured by infrared absorption spectrum at 1135cm -1 、1103cm -1 and 1015cm -1 The characteristic absorption peak of silicon-oxygen bond appears, and the 918 cm -1 and 910cm -1 The characteristic absorption peak of the nearby epoxy group weakens and disappears, which proves that the corresponding novolac epoxy modified silicone resin target product is obtained through the synthesis reaction.

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Abstract

The invention provides phenolic aldehyde epoxy modified organic silicon resin, and a long-acting anticorrosion temperature-resistant coating prepared by the phenolic aldehyde epoxy modified organic silicon resin. The phenolic aldehyde epoxy modified organic silicon resin is synthesized by novolac epoxy formamide and organic silicon resin acetophenone under the existence of solvents and catalysts in a grafting mode. The phenolic aldehyde epoxy modified organic silicon resin, color filler, auxiliaries and diluents are uniformly stirred, then grinding is carried out through a sand miller or a three-roller machine to 40-80 micrometers, filtering is carried out through the filter screen, measurement packing is carried out, and an A component is obtained through preparation. Composite type amine curing agents are prepared to be a B component. The A component and the B component are uniformly mixed to obtain the long-acting anticorrosion temperature-resistant coating according to the weight ratio of 5-16:1.

Description

technical field [0001] The invention relates to a novolak epoxy modified silicone resin. [0002] The present invention also relates to a preparation method of the above-mentioned novolac epoxy-modified silicone resin. [0003] The present invention also relates to the above-mentioned long-acting anti-corrosion and temperature-resistant coating prepared from the phenolic epoxy-modified silicone resin. Background technique [0004] Epoxy resin is an important class of thermosetting resins, and it is the most widely used matrix resin in polymer composite materials. It has excellent bonding adhesion, wear resistance, mechanical properties, electrical insulation properties, chemical resistance, and shrinkage. It is widely used as coatings, adhesives and functional materials due to its low rate, easy processing and low cost, and is widely used in aerospace, electronic instruments, light industry, construction, machinery, home appliances, automobiles and other fields . Although...

Claims

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Application Information

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IPC IPC(8): C08G77/38C07F7/18C09D183/06C09D163/04C09D7/12C09D5/08
Inventor 杨凯胡煊张元盛郭常青阮景阳方倩岳跃法张善贵
Owner MARINE CHEM RES INST
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