Self-curing polyphenylene ether resin composition and preparation method for heavy-duty anti-corrosion coatings

A polyphenylene ether resin, self-curing technology, applied in anti-corrosion coatings, polyether coatings, coatings, etc., to achieve excellent boiling water resistance and physical and mechanical properties, excellent physical and mechanical properties, outstanding effects of seawater resistance

Active Publication Date: 2018-12-11
天津市中海科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above modification processes are all multi-component systems containing other synthetic resins, initiators, curing agents, etc.

Method used

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  • Self-curing polyphenylene ether resin composition and preparation method for heavy-duty anti-corrosion coatings

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Add 100 parts of polyphenylene ether resin (low molecular weight double-terminated hydroxyl polyphenylene ether resin, NORYL SA90 resin, SABIC Innovative Plastics Co., Ltd., molecular weight 1800g / mol, hydroxyl equivalent 840 g / mol, the same below) to 100 parts of toluene , prepare a polyphenylene ether resin solution; under magnetic stirring, add 10 parts of bis(acetylacetonate) diisopropyl titanate dropwise to the above polyphenylene ether solution; Dibutyltin acid, at 30 o C temperature for 0.5h, after cooling at room temperature, the self-curing polyphenylene ether resin can be obtained.

[0019] Described low molecular weight two-terminal hydroxyl polyphenylene ether resin, its structural formula is:

[0020] .

Embodiment 2

[0022] Add 100 parts of polyphenylene ether resin to 200 parts of xylene to prepare a polyphenylene ether resin solution; under magnetic stirring, add 20 parts of diisopropyl di(acetylacetonate) titanate dropwise to the above polyphenylene ether solution; After the dropwise addition, add 1.2 parts of dibutyltin dilaurate dropwise, at 50 o C for 1 h, and after cooling at room temperature, a self-curing polyphenylene ether resin can be obtained.

Embodiment 3

[0024] Add 120 parts of polyphenylene ether resin to 400 parts of xylene to prepare a polyphenylene ether resin solution; under magnetic stirring, add 60 parts of bis(ethyl acetoacetate) diisopropyl titanate dropwise to the above polyphenylene ether solution ; After the dropwise addition, add 1.2 parts of dibutyltin dilaurate dropwise, at 90 o C for 3 hours, and after cooling at room temperature, a self-curing polyphenylene ether resin can be obtained.

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Abstract

The invention relates to a self-setting polyphenylene oxide resin composition for heavy anti-corrosion coating and a preparation method. The composition is prepared from raw materials including, by weight, 100-140 parts of polyphenylene oxide resin, 10-60 parts of organic titanium chelate, 100-400 parts of solvent and 0.8-1.2 parts of catalyst. The organic titanium chelate and the catalyst are dropwise added to a polyphenylene oxide resin organic-solvent solution in the proportion, and reaction is performed at the temperature of 30-90 DEG C for 0.5-3 hours; cooling is performed at room temperature, and self-setting polyphenylene oxide resin is obtained. According to the self-setting polyphenylene oxide resin composition for the heavy anti-corrosion coating and the preparation method of the composition, self-setting is achievedat a certain temperature, other ingredients are not required to be added, the film forming material has excellent physical and mechanical properties and outstanding boiling water resistance and sea water resistance under smaller dry film thickness, and the heavy anti-corrosion coating taking the resin as a paint base has the actual application significance on corrosion prevention and scaling prevention of distillation-process sea water desalination heat transfer tubes and working conditions such as steam blowing resistance, of petrochemical system heat exchanger pipe bundles.

Description

technical field [0001] The invention relates to a self-curing polyphenylene ether resin composition for heavy anticorrosion coatings and a preparation method. Background technique [0002] Polyphenylene ether (poly2,6-dimethyl-1,4-phenylene ether, PPE, polyphenylene ether or PPO, Polyphenylene Oxide) is one of the five general-purpose engineering plastics, with excellent mechanical strength, stress relaxation resistance, creep resistance Denaturation, heat resistance, water resistance, water vapor resistance, dimensional stability, etc. Although pure PPE has the disadvantages of poor melt fluidity and high price, its improved products still have excellent comprehensive performance and are widely used in equipment and components in the fields of electronics, automobiles, machinery, and chemicals. The modification of low molecular weight PPE is an effective way for pure PPE to be widely used. The redistribution reaction of high molecular weight polyphenylene ether and the di...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D171/12C09D5/08C09D7/63
CPCC08K5/0091C09D5/08C09D7/63C09D171/12
Inventor 任婷婷唐功文闫志山马林荣黄鑫
Owner 天津市中海科技有限公司
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