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Modified polytetrafluoroethylene coating for centrifugal pump and preparation method thereof

A technology of polytetrafluoroethylene and centrifugal pumps, which is applied in the direction of anti-corrosion coatings, coatings, etc., can solve the problems of strict substrate processing requirements, insufficient hardness, poor adhesion, etc., to expand the scope of use, prolong service life, strong corrosive effect

Inactive Publication Date: 2015-05-06
SANLIAN PUMP IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, most PTFE coatings are water-based coatings. Generally, two processes are used: primer first and then paint. The requirements for substrate treatment are strict, the construction is more troublesome, the thickness of spraying is limited, and there are easy shells and poor adhesion. And the disadvantages such as insufficient hardness

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The modified polytetrafluoroethylene coating for the centrifugal pump of the present embodiment is made of the following raw materials in parts by mass:

[0018] 90 parts of polytetrafluoroethylene resin, 50 parts of polyphenylene sulfide, 45 parts of silicone resin, 30 parts of ethylene glycol monopropyl ether, 25 parts of talc powder, 25 parts of quartz powder, 15 parts of fumed silica, epoxy resin 40 parts of soybean oil, 10 parts of titanate coupling agent, 18 parts of calcium carbonate, 15 parts of polydimethylsiloxane, 14 parts of dibutyltin dilaurate, 12 parts of diethyl phthalate, acrylic acid leveling agent 10 parts, 6 parts of modified zinc phosphate, 6 parts of aluminum tripolyphosphate, 40 parts of methyl isobutyl ketone, 20 parts of xylene.

[0019] Carry out the preparation of coating according to above-mentioned raw material ratio, comprise the following steps:

[0020] (1) Epoxidized soybean oil is first added to a high-speed mixer, then talcum powder, ...

Embodiment 2

[0024] The modified polytetrafluoroethylene coating for the centrifugal pump of the present embodiment is made of the following raw materials in parts by mass:

[0025] 95 parts of polytetrafluoroethylene resin, 55 parts of polyphenylene sulfide, 45 parts of silicone resin, 35 parts of ethylene glycol monopropyl ether, 27 parts of talc powder, 28 parts of quartz powder, 15 parts of fumed silica, epoxy resin 40 parts of soybean oil, 12 parts of titanate coupling agent, 20 parts of calcium carbonate, 18 parts of polydimethylsiloxane, 15 parts of dibutyltin dilaurate, 13 parts of dibutyl phthalate, acrylic acid leveling agent 10 parts, 8 parts of modified zinc phosphate, 7 parts of aluminum tripolyphosphate, 42 parts of methyl isobutyl ketone, 23 parts of xylene.

[0026] Carry out the preparation of coating according to above-mentioned raw material ratio, comprise the following steps:

[0027] (1) Epoxidized soybean oil is first added to a high-speed mixer, then talcum powder, ...

Embodiment 3

[0031] The modified polytetrafluoroethylene coating for the centrifugal pump of the present embodiment is made of the following raw materials in parts by mass:

[0032] 100 parts of polytetrafluoroethylene resin, 60 parts of polyphenylene sulfide, 50 parts of silicone resin, 40 parts of ethylene glycol monopropyl ether, 30 parts of talc powder, 30 parts of quartz powder, 20 parts of fumed silica, epoxy resin 45 parts of soybean oil, 15 parts of titanate coupling agent, 22 parts of calcium carbonate, 20 parts of polydimethylsiloxane, 16 parts of dibutyltin dilaurate, 15 parts of dioctyl phthalate, acrylic acid leveling agent 12 parts, 10 parts of modified zinc phosphate, 10 parts of aluminum tripolyphosphate, 45 parts of methyl isobutyl ketone, 25 parts of xylene.

[0033] Carry out the preparation of coating according to above-mentioned raw material ratio, comprise the following steps:

[0034] (1) Epoxidized soybean oil is first added to a high-speed mixer, then talcum powde...

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PUM

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Abstract

The invention discloses a modified polytetrafluoroethylene coating for a centrifugal pump and a preparation method thereof and relates to the technical filed of coatings for centrifugal pumps. The modified polytetrafluoroethylene coating is prepared from the following raw materials in parts by mass: 90-100 parts of polytetrafluoroethylene, 50-60 parts of polyphenylene sulfide, 45-50 parts of organosilicone resin, 30-40 parts of ethylene glycol monopropyl ether, 25-30 parts of talc powder, 25-30 parts of quartz powder, 15-20 parts of fumed silica, 40-45 parts of epoxidized soybean oil, 10-15 parts of a titanate coupling agent, 18-22 parts of calcium carbonate, 15-20 parts of polydimethylsiloxane, 12-16 parts of dibutyl tin dilaurate, 10-15 parts of a toughening agent, 8-12 parts of an acrylic acid flatting agent, 5-10 parts of modified zinc phosphate, 5-10 parts of aluminum tripolyphosphate, 40-45 parts of methylisobutyl ketone and 20-25 parts of xylene. The coating prepared by the preparation method has good adhesion to the centrifugal pump and the formed coat has the advantages of very strong corrosion resistance, abrasion resistance and anti-aging property so that the service life of the centrifugal pump is prolonged.

Description

Technical field: [0001] The invention relates to the technical field of coating production for centrifugal pumps, in particular to a modified polytetrafluoroethylene coating for centrifugal pumps and a preparation method thereof. Background technique: [0002] Polytetrafluoroethylene is generally called "non-stick coating" or "easy-to-clean wok material". It is a synthetic polymer material that uses fluorine to replace all hydrogen atoms in polyethylene. This material is resistant to acid and alkali, and various organic solvents, and is almost insoluble in all solvents. At the same time, PTFE has the characteristics of high temperature resistance, and its friction coefficient is extremely low, so it can be used for lubrication, and it has also become an ideal coating for the inner layer of easy-cleaning woks and water pipes. [0003] PTFE coating is widely used in various industries due to its high chemical stability, wide adaptable temperature range, outstanding non-stick ...

Claims

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Application Information

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IPC IPC(8): C09D127/18C09D5/08C09D7/12
CPCC09D127/18C08L2205/035C09D5/084C09D7/61C09D7/63C08L81/02C08L83/04C08K13/06C08K3/36C08K3/34C08K5/1515C08K2003/265C08K2003/321
Inventor 黄先功
Owner SANLIAN PUMP IND CO LTD
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