新型聚丙烯酸酯乳液对纳米氢氧化镁的改性研究

doi:10.19964/j.issn.1006-4990.2020-0645

Abstract

Abstract:

In order to change the surface properties of nano-magnesium hydroxide from hydrophilic to lipophilic,so that it can better disperse and fill in high polymer materials and reduce agglomeration.A new type of nano-polyacrylate emulsion was used as modifier to study the surface modification of nano-magnesium hydroxide.The structure and properties of modified nano-magnesium hydroxide were characterized by activation index test,contact angle test,fourier transform infrared spectro-scopy,thermogravimetric analysis and other methods.The results showed that when the addition amount of modifier（mass ratio of modifier to nano-magnesium hydroxide） was 0.6,the surface property of the nano-magnesium hydroxide changed from hydrophilic and oleophobic to lipophilic and hydrophobic.The new nano-polyacrylate emulsion chemically reacted with the surface of the nano-magnesium hydroxide particles and coated on the surface,achieving better modification effect.The modifi-cation effect of nano-magnesium hydroxide modified by other traditional silane coupling agents was compared.The comparison results showed that the dispersibility,hydrophobicity and lipophilicity of nano-magnesium hydroxide modified by the new polyacrylate microemulsion were better than modification effect of traditional silane coupling agent.

Key words: polyacrylate emulsion, nano-magnesium hydroxide, modification

CLC Number:

TQ132.2

Zhang Jing,Ke Changmei,Duan Guoquan,Wang Jingwen. Study on modification of nano-magnesium hydroxide by new polyacrylate emulsion[J]. Inorganic Chemicals Industry, 2021, 53(9): 35-39.

Figures/Tables 7

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References 15

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样品编号	改性剂添加量	样品编号	改性剂添加量
1	0.0	4	0.6
2	0.1	5	1.0
3	0.3

National Inorganic Salts Information Center

Inorganic Acid-Base-Salt Committee of CIESC

Study on modification of nano-magnesium hydroxide by new polyacrylate emulsion

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