Tough sintering epoxy powder coating and preparation thereof

A technology for sintering epoxy powders and coatings, applied in powder coatings, epoxy resin coatings, anti-corrosion coatings, etc., can solve the problems of low cross-linking, insignificant toughening effect, poor leveling, etc., to meet anti-corrosion requirements , High impact resistance, the effect of increasing toughness
CN101353544AInactive Publication Date: 2009-01-28NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG
Publication Date
2009-01-28
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a tough fusion bonded epoxy powder coating and a preparation method thereof. The tough fusion bonded epoxy powder coating of the invention consists of the following components by mass percentage: linear phenolic epoxy resin, 30 percent to 50 percent; epoxy resin E-12, 0 percent to 20 percent; curing agent, 15 percent to 25 percent; leveling agent, 0 to 2 percent; and filling, 23 percent to 33 percent. The preparation method of the tough fusion bonded epoxy powder coating comprises the following steps: adding the components into a high-speed mixer for mixing according to mixture ratio and later into an extruder for melt extrusion, and then undertaking chip compression, cooling and crushing on a cold crawler type chip compression crusher, and later undertaking grinding, classification, cyclone separation and screening in a grinding machine, and finally obtaining the product. The tough fusion bonded epoxy powder coating of the invention is mainly used in the pipe anti-corrosion field, has the advantages of good toughness, high impact resistance performance, and simple preparation process, and is suitable for mass production.
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Description

technical field

[0001] The invention relates to the field of tough fusion-bonded epoxy powder coatings for pipeline anticorrosion, in particular to tough fusion-bonded epoxy powder coatings and a preparation method thereof. technical background

[0002] Fusion-bonded epoxy powder coating (FBE) is mainly used for pipeline anti-corrosion. It is a new type of anti-corrosion coating that does not contain solvents and is formed by melting powder. During the coating process of pipelines, there is no VOC pollution, fast curing speed, and long service life. long. However, the construction conditions of onshore oil and gas pipelines are harsh and the environment is complex. The requirements for the chemical properties, mechanical and physical properties and spraying performance of fusion bonded epoxy powder coatings are relatively high, especially the impact resistance and flexibility of FBE.

[0003] The existing FBE coating production generally adopts bisphenol A epoxy resin or ep...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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