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Styrene-acrylic/hydrotalcite-like nano composite emulsion and preparation method thereof

A nano-composite, hydrotalcite technology, applied in the field of styrene-acrylic/hydrotalcite-like nano-composite emulsion and its preparation, to achieve good development prospects, improve binding force, and enhance compatibility

Inactive Publication Date: 2010-12-22
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In summary, it would be very meaningful to prepare a composite material by combining the advantages of styrene-acrylic emulsion and hydrotalcite, but there is no relevant report yet

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] The 25.641g Mg(NO 3 ) 2 ·6H 2 O and 33.75gAl(NO 3 ) 3 9H 2 O was dissolved in 100ml deionized water to make a mixed salt solution, and another amount of Na with a concentration of 1M 2 CO 3 100ml of the solution was placed in a flask, and Mg was added dropwise 2+ 、Al 3+ Mix the salt solution and NaOH solution to keep the pH value of the solution in the flask at 10. After the dropwise addition, the solution was aged for 3 hours, placed in a thermostat at 100°C for hydrothermal crystallization for 24 hours, filtered, washed, and dried to obtain LDH with a magnesium-aluminum ratio of 3:1.

Embodiment 2

[0046] The 25.641g Mg(NO 3 ) 2 ·6H 2 O and 18.7565gAl(NO 3 ) 3 9H 2 O was dissolved in 100ml deionized water to make a mixed salt solution, and another amount of Na with a concentration of 1M 2 CO 3 100ml of the solution was placed in a flask, and Mg was added dropwise 2+ 、Al 3+ Mix the salt solution and NaOH solution to keep the pH value of the solution in the flask at 10. After the dropwise addition, the solution was aged for 3 hours, placed in a thermostat at 100°C for hydrothermal crystallization for 24 hours, filtered, washed, and dried to obtain LDH with a magnesium-aluminum ratio of 2:1.

Embodiment 3

[0048] The 25.641g Mg(NO 3 ) 2 ·6H 2 O and 9.3782gAl(NO 3 ) 3 9H 2 O was dissolved in 100ml deionized water to make a mixed salt solution, and another amount of Na with a concentration of 1M 2 CO 3 100ml of the solution was placed in a flask, and Mg was added dropwise 2+ 、Al 3+ Mix the salt solution and NaOH solution to keep the pH value of the solution in the flask at 10. After the dropwise addition, the solution was aged for 3 hours, placed in a thermostat at 100°C for hydrothermal crystallization for 24 hours, filtered, washed, and dried to obtain LDH with a magnesium-aluminum ratio of 4:1.

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PUM

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Abstract

The invention discloses a cinepazid / hydrotalcite-like nanometer composite emulsion. The cinepazid / hydrotalcite-like nanometer composite emulsion takes the nanometer level hydrotalcite undergoing organic substance intercalation modification as a dispersed phase, takes styrene and acrylic ester as the monomers of the polyreaction, and takes acrylic acid as a functional monomer; and alkali is used to neutralize the acidity of the acrylic acid and the cinepazid / hydrotalcite-like nanometer composite emulsion is prepared by a home position intercalation polymerization method. The raw materials havethe following mass proportion: 1 to 9 portions of organic substance intercalation modification hydrotalcite, 35 to 45 portions of styrene, 45 to 55 portions of acrylic ester, and 1 to 3 portions of acrylic acid. The cinepazid / hydrotalcite-like nanometer composite emulsion has a simple, convenient and easily controlled preparation process; the polymerization system is stable; and the obtained cinepazid / hydrotalcite-like nanometer composite emulsion also has certain flame retardant performance while simultaneously maintaining the physical and chemical properties similar with those of pure cinepazid emulsion.

Description

(1) Technical field [0001] The invention relates to a styrene-acrylic / hydrotalcite-like nanocomposite emulsion and a preparation method thereof. (2) Background technology [0002] Styrene-acrylic copolymer emulsion is the product of emulsion polymerization of styrene and acrylate or functional group acrylate monomers. It is widely used in architectural coatings, metal surface latex coatings, floor coatings, paper adhesives, adhesives, leather finishing and inks. etc., its usage is increasing day by day. Styrene-acrylic emulsion has the advantages of non-toxic and tasteless, non-flammable and non-explosive, low pollution, and high bonding strength with pigments; and it has strong versatility and applicability. The latex paint prepared as the main film-forming material has high bonding strength and simple and fast construction. Etc. [0003] Fire prevention is an important field of fire science and technology. Fireproof coating refers to a coating on the surface of objects t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/10C08F212/08C08F2/44C08F2/24C08K9/04
Inventor 李秀娟张波石能富
Owner ZHEJIANG UNIV OF TECH