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A kind of high entropy phosphate, high temperature binder and its preparation method and application

A high-temperature binder and high-entropy phosphate technology, applied in adhesives, inorganic adhesives, chemical instruments and methods, etc., can solve the problems of poor high temperature resistance, single binder performance, bonding, adhesion and corrosion protection Insufficient performance and other problems, to achieve excellent high temperature resistance, good bonding effect

Active Publication Date: 2021-09-28
广东华材实业股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a high-entropy phosphate, a high-temperature binder and its preparation method and application. By grafting various metal ions and adjusting their dosage, it aims to solve the existing The performance of the adhesive is relatively single, the high temperature resistance is poor, and the problem of insufficient bonding, adhesion and corrosion protection performance in high temperature environment

Method used

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  • A kind of high entropy phosphate, high temperature binder and its preparation method and application

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Experimental program
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Effect test

Embodiment 1

[0035] Raw material ratio: analytical grade 85% orthophosphoric acid 313.0g, analytical grade 1000 mesh aluminum hydroxide powder 26.0g, analytical grade 800 mesh ~ 1500 mesh calcium carbonate powder 4.0g, analytical grade 800 mesh magnesium oxide powder 22.0g, Analytical grade 800 mesh ~ 1000 mesh zinc oxide powder 22.0g, water 50.0g.

[0036] Determine the general formula M of phosphate according to the ratio of raw materials X h Y PO 4 The composition of M and the values ​​of X and Y in this example, M contains four kinds of aluminum, calcium, magnesium and zinc, and the general formula of comprehensive phosphate is Al 0.123 Ca 0.015 Mg 0.201 Zn 0.1 h 2 PO 4 .

[0037] Preparation steps: Take 85% orthophosphoric acid and water into the reactor, and gradually add aluminum hydroxide, calcium carbonate, magnesium oxide and zinc oxide powder under the condition of stirring line speed of 0.6-3.0m / s and 0-150°C , until the powder is completely reacted. A colorless trans...

Embodiment 2

[0041] Raw material ratio: analytical grade 85% orthophosphoric acid 373.0g, analytical grade 1000 mesh aluminum hydroxide powder 70.0g, analytical grade 800 mesh ~ 1500 mesh calcium hydroxide powder 5.20g, analytical grade 800 mesh magnesium oxide powder 25.0g , Analytical grade 800 mesh ~ 1000 mesh zinc oxide powder 20.0g, analytical grade 600 mesh ~ 800 mesh copper oxide powder 11.0g, water 50.0g.

[0042] Determine the general formula M of phosphate according to the ratio of raw materials X h Y PO 4 The composition of M and the values ​​of X and Y in this example, M contains five kinds of aluminum, calcium, magnesium, zinc and copper, and the general formula of comprehensive phosphate is Al 0.188 Ca 0.015 Mg 0.130 Zn 0.1 Cu 0.056 h 2.0 PO 4 .

[0043] Preparation steps: Take 85% orthophosphoric acid and water into the reactor, and gradually add aluminum hydroxide, calcium hydroxide, magnesium oxide, zinc oxide and Copper oxide powder, wait until the powder is com...

Embodiment 3

[0047] Raw material ratio: analytical grade 85% orthophosphoric acid 420.0g, analytical grade 1000 mesh aluminum hydroxide powder 42.0g, analytical grade 800 mesh ~ 1500 mesh calcium carbonate powder 1.0g, analytical grade 800 mesh magnesium carbonate powder 46.2g, Analytical grade 800 mesh ~ 1000 mesh zinc hydroxide powder 24.4g, analytical grade 600 mesh zirconium hydroxide powder 35.0g, water 50.0g.

[0048] Determine the general formula M of phosphate according to the ratio of raw materials X h Y PO 4 The composition of M and the values ​​of X and Y in this example, M contains five kinds of aluminum, calcium, magnesium, zinc and zirconium, and the comprehensive phosphate general formula Al 0.148 Ca 0.003 Mg 0.15 Zn 0.067 Zr 0.06 h 1.88 PO 4 .

[0049] Preparation steps: Take 85% orthophosphoric acid and water into the reactor, and gradually add aluminum hydroxide, calcium carbonate, magnesium carbonate, zinc hydroxide and Zirconium hydroxide powder, wait until th...

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Abstract

The invention discloses a high-entropy phosphate, a high-temperature binder and its preparation method and application. The general formula of the high-entropy phosphate is M X h Y PO 4 , wherein 0≤X≤1.5, 0≤Y≤2, M contains at least four metal ions of aluminum, calcium, magnesium and zinc. The high-temperature binder includes components by weight percentage: 50-92% of high-entropy phosphate and the balance of water; the high-entropy phosphate is obtained by reacting phosphoric acid and metal compounds. The high-temperature adhesive of the present invention not only has excellent high-temperature resistance performance, can withstand a high temperature of 1500° C. for a long time, but also has good adhesion, adhesion and corrosion protection performance under high temperature.

Description

technical field [0001] The invention relates to the technical field of binders, in particular to a high-entropy phosphate, a high-temperature binder and a preparation method and application thereof. Background technique [0002] In recent years, with the advancement of science and technology, bonding technology, as a method of connecting different substances, has been more and more widely used. In the field of high temperature resistance, the binder also plays its due role. Due to its unique advantages in temperature resistance, high-temperature-resistant adhesives have been widely used in many high-tech fields, especially in aviation, aerospace, automobiles and boilers. High-temperature-resistant adhesives play an irreplaceable role. effect. [0003] At present, there have been a large number of reports on adhesives used in the medium and low temperature fields, and they are widely used in the fields of steam pipes, engine casings and exhaust pipes, all of which have good...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B25/45C04B12/02C09D1/00C09D5/08C09J1/00
CPCC01B25/45C04B12/02C09D1/00C09D5/08C09J1/00
Inventor 戴雷袁想平唐知桥王亚文唐子奉郑剑雄冯强
Owner 广东华材实业股份有限公司