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Attapulgite clay suspension agent

A technology of attapulgite clay and suspending agent, applied in the direction of coating, etc., can solve the problems of poor anti-sedimentation effect and easy agglomeration of attapulgite clay, and achieve the effects of reduced production cost, abundant storage, and good dispersibility

Inactive Publication Date: 2011-03-23
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the current problems that organic bentonite has poor anti-settling effect in coatings and attapulgite clay is easy to agglomerate, the invention provides a suspending agent for attapulgite clay

Method used

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  • Attapulgite clay suspension agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Dissolve 2g of chitosan in 600ml of 1% acetic acid solution, add 100ml of methanol solution, weigh 95g of attapulgite clay and 5.0g of montmorillonite and disperse them into the above solution, stir and react at 1000rpm for 15min, then add 300ml (27.3g) hexadecyltrimethylammonium bromide, reacted for 2 hours, filtered, dried at 80°C, and measured the suspension degree.

Embodiment 2

[0015] Dissolve 3g of chitosan in 600ml of 1% acetic acid solution, add 100ml of methanol solution, weigh 95g of attapulgite clay and 5.0g of rectorite and disperse them into the above solution, stir and react at 1000 rpm for 15min, then add 300ml (27.3g) hexadecyltrimethylammonium bromide, reacted for 3 hours, filtered, dried at 80°C, and measured the suspension degree.

Embodiment 3

[0017] Dissolve 3.5g of chitosan in 600ml of 1% acetic acid solution, add 100ml of methanol solution, weigh 95g of attapulgite clay and 5.0g of sepiolite and disperse them into the above solution, stir and react for 15min at 1000 rpm, then add 300ml (27.3g) of cetyltrimethylammonium bromide was reacted for 4 hours, filtered, dried at 80°C, and the suspension degree was measured.

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Abstract

The invention discloses an attapulgite clay suspension agent, which mainly comprises attapulgite clay, other clays, chitosan and alkyl quaternary ammonium salt which serve as raw materials. The attapulgite clay suspension agent has the characteristics of high dispersibility and suspending power in water, has high dispersibility and suspension property in an ethanol solvent, and can be used as a suspended anti-settling agent, a thickening agent, a rheological aid and the like.

Description

technical field [0001] The invention relates to an attapulgite clay suspending agent. Background technique [0002] The suspension of coatings refers to the ability of coatings to resist the stratification and precipitation of solid fillers, which is a basic property that determines the stability of coating performance. An important feature of a good coating is that it can keep the filler suspended in the carrier medium for a long time without delamination, precipitation, agglomeration and uniform performance. In recent years, among the commonly used suspending agents for coatings, organic bentonite has the most ideal suspending property, but the anti-sedimentation effect of organic bentonite is poor, and its initiator xylene is not friendly to the environment. In addition, the raw materials of bentonite are relatively expensive and costly, and high-quality bentonite resources are also tending to be exhausted. Therefore, the present invention attempts to find a kind of pai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D7/12A61K8/73C08K9/04
Inventor 王爱勤汪琴杨效和
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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