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Modifier I and method of applying the same in preparation of coating

A modifier and coating technology, applied in powder coatings, polyester coatings, epoxy resin coatings, etc., can solve problems such as insufficient utilization of red mud

Active Publication Date: 2019-08-06
广西福宝信科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The present invention provides a modifier I and its use method in the preparation of coatings to solve the technical problem of insufficient utilization of existing red mud in indoor coatings

Method used

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  • Modifier I and method of applying the same in preparation of coating
  • Modifier I and method of applying the same in preparation of coating

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preparation example Construction

[0037] The preparation method of described modified red mud powder comprises the following steps:

[0038] (1) Wash the red mud with water. After the red mud is tested to have a pH value of 8.2-9.6, it is filtered to obtain clean red mud. The clean red mud is dried until the water content is ≤ 5.2%;

[0039] (2) ultrafine grinding the clean red mud prepared in step (1), and sieving to obtain a clean red mud powder larger than 300 meshes;

[0040] (3) Add modifier I to the clean red mud powder prepared in step (2), said modifier I is composed of diethanolamide stearic acid monoglyceride, ethylene-bis(N-ethanesulfonic acid - sodium lauramide), the addition of the modifier I is 3.4-4.6% of the clean red mud powder mass, the diethanolamide monoglyceride stearate, ethylene-bis(N-ethylene The mass ratio of sulfonic acid-dodecylamide) sodium is 6.3-10.8:3.4-7.6, the temperature is controlled at 56-65°C, and the mixture is stirred at a speed of 800-1000r / min for 20-30min to obtain mi...

Embodiment 1

[0075] A preparation method of modified red mud powder, comprising the following steps:

[0076] (1) The red mud discarded in the alumina production process is washed with water to remove the Na in the red mud 2 O and other water-soluble substances are washed away, and the washed red mud is tested to have a pH value of 8.9, then press-filtered to become clean red mud, and the clean red mud is dried to a water content of 5%;

[0077] (2) ultrafine grinding the clean red mud prepared in step (1), and sieving to obtain a clean red mud powder larger than 300 meshes;

[0078] (3) Add modifier I to the clean red mud powder prepared in step (2), said modifier I is composed of diethanolamide stearic acid monoglyceride, ethylene-bis(N-ethanesulfonic acid - lauramide) sodium composition, the addition of the modifier I is 4.2% of the clean red mud powder quality, the diethanolamide monoglyceride stearate, ethylene-bis(N-ethanesulfonic acid - the mass ratio of sodium dodecylamide) is 9....

Embodiment 2

[0099] A preparation method of modified red mud powder, comprising the following steps:

[0100] (1) The red mud discarded in the alumina production process is washed with water to remove the Na in the red mud 2 O and other water-soluble substances are washed away, and the washed red mud is tested to have a pH value of 8.5, then press-filtered to become clean red mud, and the clean red mud is dried to a water content of 4.9%;

[0101] (2) ultrafine grinding the clean red mud prepared in step (1), and sieving to obtain a clean red mud powder larger than 300 meshes;

[0102] (3) Add modifier I to the clean red mud powder prepared in step (2), said modifier I is composed of diethanolamide stearic acid monoglyceride, ethylene-bis(N-ethanesulfonic acid - lauramide) sodium composition, the addition of the modifier I is 3.8% of the clean red mud powder quality, the diethanolamide monoglyceride stearate, ethylene-bis(N-ethanesulfonic acid - the mass ratio of sodium dodecylamide) is ...

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Abstract

The invention discloses a modifier I, which is composed of diethanolamide stearic acid monoglyceride and N,N'-ethylenebis[N-(sodium ethylenesulfonate)-dodecanamide]; and a method of applying the samein preparation of coating. The method includes adding the modifier I into clean red mud powder, stirring the mixture at a controlled temperature in a controlled speed to obtain a mixture I, subjectingthe mixture I to a second time of modification to obtain a mixture II, and applying the mixture II to preparation of indoor powder coating after the mixture II is dried and crushed. The diethanolamide stearic acid monoglyceride and N,N'-ethylenebis[N-(sodium ethylenesulfonate)-dodecanamide] are utilized for surface modification of the red mud so as to introduce long-chain fatty acid, amino, sulfoand other groups onto the surfaces of red mud particles, thus improving dispersibility and processing fluidity of the modified red mud powder, allowing the modified red mud to be more compatible withother raw materials of the coating such as epoxy resin and polyester resin, improving adhesion force of a coating layer interface, and further improving coating film apparent performance and gloss ofthe indoor powder coating.

Description

[0001] 【Technical field】 [0002] The invention belongs to the technical field of powder coating preparation, and in particular relates to a modifier I and its use method in preparing coatings. [0003] 【Background technique】 [0004] Guangxi Pingguo Aluminum is known as the aluminum capital of China and is the main aluminum production base in China. It mainly uses local bauxite resources to produce alumina, with an annual production of 2.5 million tons of alumina and 3 million tons of red mud discharge. Today, 37.5 million Ten thousand tons of red mud tailings have piled up into mountains, and now the discharge is gradually increasing at a rate of 3 million tons per year, which not only causes a lot of financial, material and manpower to be spent on closed treatment, but also takes up a lot of local land resources to pile up red mud. Dam construction safety management is also very difficult. [0005] At present, due to the great difficulty in the comprehensive utilization of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/02C09D163/00C09D5/03C09D7/62
CPCC08K2003/2206C08K2003/2227C08K2003/2241C08K2003/2272C09D5/033C09D163/00C09D167/02C08L63/00C08K9/04C08K3/22C08K3/36C08L67/02
Inventor 王雄
Owner 广西福宝信科技有限公司
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