Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method of preparing surface modified nano magnesium hydroxide

A technology for surface modification of nano-magnesium hydroxide, which is applied in the direction of magnesium hydroxide, can solve the problems of complex process conditions, high energy consumption, and high equipment requirements, and achieve simple synthesis processes, mild reaction conditions, and complete crystal forms. Effect

Inactive Publication Date: 2007-10-17
CHINA RES INST OF DAILY CHEM IND
View PDF1 Cites 22 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Another method invented by Inorganic Salt Industry, 2006 (3) is to use hydrothermal synthesis to obtain modified nano-magnesium hydroxide in one step. The process conditions of these methods are complicated, the requirements for equipment are very high, and the energy consumption is relatively high

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] At room temperature, dissolve 0.6 g of sodium lauryl sulfate anionic surfactant in 30 ml of deionized water to form a uniform solution, dissolve 30.0 g of sodium hydroxide in 150 ml of deionized water to form a uniform solution, and then dissolve the surfactant solution Pour into the sodium hydroxide solution and stir to obtain solution A; dissolve 50.8g of magnesium chloride hexahydrate in 250ml deionized water to make a uniform solution to obtain solution B; add solution B dropwise to solution A at 20°C and stir vigorously 4 hours, aged at room temperature for 2 days, filtered, washed with deionized water to pH 6, and dried in a vacuum oven at 80°C for 8 hours to obtain surface-modified nano-magnesium hydroxide.

Embodiment 2

[0024] At room temperature, 0.8 g of sodium dodecylbenzenesulfonate anionic surfactant was dissolved in 50 ml of deionized water to form a homogeneous solution, and then the surfactant solution was poured into 200 ml of the aqueous ammonia solution with a concentration of 3.5 mol / L. Stir to obtain solution A; dissolve 43.2g of magnesium sulfate heptahydrate in 230ml of deionized water to make a uniform solution to obtain solution B; at 50°C, add solution B dropwise to solution A, stir vigorously for 4 hours, and age at room temperature After 2 days, filter, wash with deionized water to pH 8, and dry in a vacuum oven at 80°C for 8 hours to obtain surface-modified nano-magnesium hydroxide.

Embodiment 3

[0026] At room temperature, at 40°C, the C 8～10 h 18～22 (EO) 9 OCH 2 4g of COONa anionic surfactant was dissolved in 30ml deionized water to form a uniform solution, then the surfactant solution was poured into 100ml of ammonia water with a concentration of 2.5mol / L, and stirred to obtain solution A; 20.3g of magnesium chloride hexahydrate was dissolved in Prepare a uniform solution in 70ml of deionized water to obtain solution B; add solution B dropwise to solution A at 40°C, stir vigorously for 4 hours, age at room temperature for 2 days, filter, wash with deionized water to pH 7, and dry at room temperature , dried in a vacuum oven at 80° C. for 8 hours to obtain surface-modified nano-magnesium hydroxide.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
Login to View More

Abstract

A method for preparing surface modified nano-scaled Mg(OH)2 comprises the steps of: preparing the soluble magnesium salt into magnesium salt solution, preparing the surface modification agent and alkali into a mixed solution, dipping the magnesium salt solution into the mixed solution at the temperature of 20-100 degree, stirring strongly for 1-10H, cooling for 2-24H at room temperature, filtering and washing with de-ionized water till PH6-7, drying in vacuum oven and hence obtaining the surface modified nano-scaled Mg(OH)2. The invention is characterized in integral crystal shape of the sample during preparation, simple processing and soft reaction conditions etc.

Description

technical field [0001] The invention relates to a preparation method of surface-modified nano magnesium hydroxide. Background technique [0002] The widespread use of polymer materials such as plastics, rubber, and synthetic fibers has brought great convenience to human life and is also an important symbol of human modernization. However, the flammability of these materials has also aroused public opinion and relevant government agencies in various countries. attention. [0003] As an inorganic additive flame retardant, magnesium hydroxide has the advantages of flame retardancy, smoke suppression, non-toxicity, non-volatility, no corrosive gas generation, high-efficiency promotion of charring of substrates, and acid removal ability. Because the surface contains a large number of acidic hydrophilic groups-hydroxyl groups, the water absorption rate is high, and it is easy to form aggregates. Generally, the compatibility with the matrix resin and the processing fluidity are po...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C01F5/14C01F5/20C01F5/22
Inventor 杜志平台秀梅赵永红王万绪张广良刘晓英
Owner CHINA RES INST OF DAILY CHEM IND
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com