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Modified aluminum tripolyphosphate anti-rust pigment for middle and low-end coatings and preparation method thereof
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A technology of aluminum tripolyphosphate and aluminum dihydrogen tripolyphosphate, which is applied in anti-corrosion coatings, polyester coatings, inorganic pigment treatment, etc., can solve the problems of high price and unsuitability for low-end coatings, and achieve low production costs , good economic and social benefits, and the effect of low response conditions
Active Publication Date: 2015-07-01
GUANGXI UNIV FOR NATITIES
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[0005] The purpose of the present invention is to provide a modified aluminum tripolyphosphate used in low-end paints in order to overcome the disadvantages of the modified aluminum tripolyphosphate antirust pigments in the market, such as high price and unsuitability for low-end paints. Antirust pigment and preparation method thereof
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Embodiment 1
[0025] 1. Raw material composition and weight:
[0026] 100 grams of aluminum dihydrogen tripolyphosphate, 40 grams of calcium metaborate, 300 grams of water, 150 grams of alum slurry powder containing 22% basic potassium aluminum sulfate.
[0027] 2. Preparation method:
[0028] Take 100 grams of aluminum dihydrogen tripolyphosphate in a beaker, add 300 grams of water, add 40 grams of calcium metaborate after stirring, stir for 10 minutes at 40 ° C, and finally add alum slurry powder containing 22% basic aluminum potassium sulfate Body 150 g, continue to stir for 15 minutes, pour the viscous material into a ball mill, grind for 30 minutes, filter according to conventional methods, wash, dry, and pulverize to obtain powdery modified aluminum tripolyphosphate antirust pigment.
Embodiment 2
[0030] 1. Raw material composition and weight:
[0031] 100 grams of aluminum dihydrogen tripolyphosphate, 15 grams of zinc metaborate, 280 grams of water, 150 grams of ST pigment powder containing 15% basic potassium aluminum sulfate.
[0032] 2. Preparation method:
[0033] Take 100 grams of aluminum dihydrogen tripolyphosphate in a beaker, add 280 grams of water, add 15 grams of zinc metaborate after stirring, stir for 10 minutes at 40 ° C, and finally add ST pigment 150 containing 15% basic aluminum potassium sulfate gram, continue to stir for 15 minutes, pour the viscous material into a ball mill, grind for 30 minutes, filter according to conventional methods, wash, dry, and pulverize to obtain powdery modified aluminum tripolyphosphate antirust pigment.
Embodiment 3
[0035] 1. Raw material composition and weight:
[0036] 100 grams of aluminum dihydrogen tripolyphosphate, 10 grams of calcium metaborate, 200 grams of water, 80 grams of ST filler powder containing 20% basic potassium aluminum sulfate.
[0037] 2. Preparation method:
[0038] Take 100 grams of aluminum dihydrogen tripolyphosphate in a beaker, add 200 grams of water, add 10 grams of calcium metaborate after stirring, stir for 15 minutes at room temperature, and finally add ST filler powder containing 20% basic potassium aluminum sulfate 80 grams, continue to stir for 10-20 minutes, pour the obtained viscous material into a ball mill, grind for 30 minutes, filter according to conventional methods, wash, dry, and pulverize to obtain powdery modified aluminum tripolyphosphate antirust pigment.
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Abstract
The invention discloses a modified aluminum tripolyphosphate anti-rust pigment for middle and low-end coatings and a preparation method thereof. The modified aluminum tripolyphosphate anti-rust pigment consists of the following raw materials in parts by weight: 100 parts of aluminum dihydrogen tripolyphosphate, 0.5-50 parts of metaborate, 40-400 parts of powder containing 10-30% of aluminum potassium hydroxide sulfate and 150-550 parts of water. The modified aluminum tripolyphosphate for middle and low-end coatings is prepared by modifying with two modifiers without adding silicon dioxide filler, and then chemical modification is performed under two-step modification so that the acidity of the aluminum dihydrogen tripolyphosphate changes and the pigment product is prepared. The modified aluminum tripolyphosphate has excellent anti-rust performance and can be applied to the anti-rust coatings of various resin systems, and the modifiers are cheap, thereby expanding the application of the modified aluminum tripolyphosphate anti-rust pigment in the middle and low-end coatings. The requirements for preparation reaction conditions are low, the technology is simple, the operation is easy, the industrial production is easy to implement, the production cost is relatively low, and the economic and social benefits are good.
Description
technical field [0001] The invention belongs to the technical field of antirust pigment preparation, and relates to a method for preparing phosphate antirust pigments, in particular to a modified aluminum tripolyphosphate antirust pigment for low-end paints and a preparation method thereof. Background technique [0002] For a long time, the performance and safety of antirust pigments in metal anticorrosion coatings have been the focus of discussion and research, looking for efficient, multifunctional and environmentally friendly lead and chromium antirust pigments (red lead, zinc chrome yellow) Effective substitutes for pigments at home and abroad have become an urgent problem to be solved. The non-lead and non-chromium pigments that have been studied so far include phosphates, molybdates, borates, ferrites, ion-exchange pigments, etc. Among them, phosphate series pigments occupy a large proportion in terms of variety, performance and application range. important position. ...
Claims
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Application Information
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