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A polyphenylene sulfide powder coating with both anti-corrosion and fire-proof functions

A polyphenylene sulfide, powder coating technology, applied in powder coatings, anti-corrosion coatings, fire-retardant coatings, etc., can solve the problem of poor compatibility between anti-rust and anti-corrosion primers and fire-resistant coatings, reducing fire-resistant effects, and surface fire-resistant coatings falling off and other problems, to achieve excellent anti-corrosion performance, promote compatibility, and have the effect of fire resistance

Active Publication Date: 2017-12-15
唐楷
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The harm of doing this is that first, the traditional anti-rust primer uses a large amount of solvent, which is very harmful to the environment before and after the construction process; second, the compatibility between the anti-rust and anti-corrosion primer and the fireproof coating is not good, and the surface will be damaged after a long time. Fire retardant coatings may peel off, reducing fire protection effectiveness

Method used

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  • A polyphenylene sulfide powder coating with both anti-corrosion and fire-proof functions
  • A polyphenylene sulfide powder coating with both anti-corrosion and fire-proof functions
  • A polyphenylene sulfide powder coating with both anti-corrosion and fire-proof functions

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A polyphenylene sulfide powder coating with both anti-corrosion and fire-proof functions, the coating includes the following components:

[0026] Polyphenylene sulfide: 40

[0027] Titanium dioxide: 5

[0028] Mica Powder: 3

[0029] Barium sulfate: 2

[0030] Silane coupling agent: 1

[0031] Expandable graphite powder: 3

[0032] Microcapsule modified ammonium polyphosphate: 10

[0033] Microencapsulated Melamine: 10

[0034] Microencapsulated pentaerythritol: 10

[0035] Dispersant, using Shanghai Jinshan Chemical Co., Ltd. JS-V966: 0.5

[0036] Leveling agent, using Shanghai Jinshan Chemical Co., Ltd. JS-3038: 0.5

[0037] Fatty alcohol polyoxyethylene methyl-terminated polyether: 15,

[0038] The above raw materials are in kg.

[0039] The preparation method of fatty alcohol polyoxyethylene methyl-terminated polyether is as follows: add AEO-9 (fatty alcohol polyoxyethylene ether), NaOH and sodium methylate in a three-necked flask with a molar ratio of 1:0...

Embodiment 2

[0050] Both Example 2 and Example 3 adopt the preparation method and process steps of Example 1, and only change the coating formula, and then see Table 1 for the specific indicators after the performance test.

[0051] Table 1 embodiment 1-3 each component consumption and test result

[0052]

[0053] In order to further clarify that the polyphenylene sulfide powder coating developed by the present invention has excellent anti-corrosion and fireproof properties, a group of commercially available polyphenylene sulfide powder coatings and a group of commercially available ammonium polyphosphate fireproof coatings are selected for comparative testing, formula and performance testing The results are shown in Table 2 and Table 3.

[0054] Table 2 Commercially available polyphenylene sulfide powder coating formula table

[0055]

[0056]

[0057] Table 3 Commercially available ammonium polyphosphate fireproof coating formula table

[0058]

[0059] From Table 1, Table...

Embodiment 4

[0061] To prepare the polyphenylene sulfide powder coating, the proportioning is carried out according to the following mass ratios, and the following raw materials are all commercially available, and the unit is kg. The specific list is as follows:

[0062]

[0063] Taking Example 4 as an example, simply mixing anti-corrosion components (such as polyphenylene sulfide) and fire-proof components (such as ammonium polyphosphate, melamine, pentaerythritol), even if the dosage is increased, the desired anti-corrosion and fire-proof effects cannot be achieved. And coating physical property is very poor, and reason is: the used ammonium polyphosphate of the technical scheme of the present invention, melamine, pentaerythritol all carry out microencapsulation treatment, have added fatty alcohol polyoxyethylene methyl capped polyether simultaneously, the purpose of doing like this is Let the fireproof components be well compatible with polyphenylene sulfide resin during the electros...

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Abstract

The invention belongs to the technical field of preparation of powder coatings and particularly discloses a polyphenylene sulfide powder coating having both anti-corrosion and fire-proof functions. The coating is prepared from 15%-55% of polyphenylene sulfide, 0-10% of titanium dioxide, 0-5% of mica powder, 0-3% of barium sulfate, 0.5%-1.5% of a silane coupling agent, 2.5%-5% of expandable graphite powder, 6%-10% of microcapsule modified ammonium polyphosphate, 6%-10% of microcapsule melamine, 6%-10% of microcapsule pentaerythritol, 0.5%-1.5% of a dispersing agent, 0.5%-1.5% of a leveling agent and 3%-7.5% of fatty alcohol polyoxyethylene methyl terminated polyether. The polyphenylene sulfide powder coating is applicable to fire-proof and anti-corrosion protection of steel structure buildings, large chemical reaction kettles, chemical corrosive raw material delivery pipelines and valves and has excellent anti-corrosion performance and good fire-proof performance.

Description

technical field [0001] The invention belongs to the technical field of powder coating preparation, in particular to a polyphenylene sulfide powder coating with both anti-corrosion and fireproof functions. Background technique [0002] Polyphenylene sulfide (PPS) is a special engineering plastic with excellent comprehensive properties. It has the characteristics of high temperature resistance, radiation resistance, flame retardancy, non-toxicity, excellent electrical properties, etc., and has balanced physical and mechanical properties and excellent dimensional stability. sex. [0003] In recent years, the scope of application of polyphenylene sulfide powder coatings in pharmaceutical, pesticide, dye and fine chemical industries, such as reactors, large pipelines, chemical valves, and steel structure buildings, has continued to expand. But at the same time, steel materials also have insurmountable safety hazards. Although steel structures are non-combustible materials, their...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D181/02C09D5/03C09D5/08C09D5/18C09D7/12
CPCC08L2201/02C08L2203/18C08L2205/03C08L2205/08C08L2207/53C09D5/033C09D5/08C09D5/185C09D7/61C09D7/63C09D7/65C09D181/02C08L71/02C08L61/28C08K13/06C08K9/10C08K2003/323C08K7/24C08K2003/2241C08K2003/3045
Inventor 唐楷郝俊曾倪黄新
Owner 唐楷
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