Dolomitic attapulgite composite enhanced flame retardant and preparation method thereof

A technology of attapulgite and composite reinforcement, which is applied in the direction of dyeing organosilicon compound treatment, dyeing physical treatment, fibrous filler, etc. Ingredient utilization reasonable effect

Inactive Publication Date: 2015-04-01
ZHENGZHOU MINERALS COMPOSITIVE UTILIZATION RES INST CHINESE GEOLOGICAL ACAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the publicly reported dolomite and dolomite attapulgite modified powder are mainly used as fillers in rubber, and are not used as flame retardant materials.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A dolomite attapulgite composite reinforcement and flame retardant, its preparation steps are as follows:

[0020] ①Crush the dolomitic attapulgite containing about 30% dolomite, 40% attapulgite, calcite, quartz, feldspar, and montmorillonite with a combined amount of 0-30% into particles with a particle size of <6mm. pellets;

[0021] ② Mix 0.3% silane with the granular material into the pulverizer, realize the dispersion and coating of dolomite and attapulgite by the additive through the pulverization process, and the particle size of the pulverized powder should be d97 according to the particle size requirements of the finished product Can be controlled within 3μm -45μm;

[0022] ③ Compounding: Mix the base material treated in step ② with the modified magnesium hydroxide powder coated with 0.5% silane of 0.5% magnesium hydroxide mass in the mass ratio of 1:0.9 to obtain reinforcement and flame retardancy. agent;

[0023] ④ Inspection and packaging: inspect reinfor...

Embodiment 2

[0025] A dolomite attapulgite composite reinforcement and flame retardant, its preparation steps are as follows:

[0026] ①Crush the dolomitic attapulgite containing about 30% dolomite, 40% attapulgite, calcite, quartz, feldspar, and montmorillonite with a combined amount of 0-30% into particles with a particle size of <6mm. pellets;

[0027] ② Mix the silane with 2.0% of the mass of the granular material into the pulverizer, and realize the dispersion and coating of dolomite and attapulgite by the additive through the pulverization process. According to the particle size of the finished product, the particle size of the pulverized powder is d97 Can be controlled within 3μm -45μm;

[0028] ③ Compounding: Mix the base material treated in step ② with the modified magnesium hydroxide powder coated with 0.5% silane of 0.5% magnesium hydroxide mass in the mass ratio of 1:0.9 to obtain reinforcement and flame retardancy. agent;

[0029] ④ Inspection and packaging: inspect reinfor...

Embodiment 3

[0031] A dolomite attapulgite composite reinforcement and flame retardant, its preparation steps are as follows:

[0032] ①Crush the dolomitic attapulgite containing about 30% dolomite, 40% attapulgite, calcite, quartz, feldspar, and montmorillonite with a combined amount of 0-30% into particles with a particle size of <6mm. pellets;

[0033] ②Mix the titanate with a mass of 0.3% of the granular material and the granular material into the pulverizer, and realize the dispersion and coating of the dolomite and attapulgite by the additive through the pulverization process. Diameter d97 can be controlled within 3μm -45μm;

[0034] ③ Compounding: Mix the base material treated in step ② with the modified magnesium hydroxide powder coated with 0.5% silane of 0.5% magnesium hydroxide mass in the mass ratio of 1:0.9 to obtain reinforcement and flame retardancy. agent;

[0035] ④ Inspection and packaging: inspect reinforcement and flame retardants according to mineral content and par...

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Abstract

The invention discloses a dolomite-based attapulgite composite reinforced flame retardant and a preparation method thereof. Its steps are as follows: ① Crushing: making the naturally produced ore into particles less than 6 mm in size; ② Crushing and coating: Mix 0.3%-2.0% by mass of the dispersing and coating aid with the granules into the pulverizer, and after pulverization and coating treatment, the reinforcement and flame retardant base material with a particle size d97 of 3μm-45μm;③ Composite: Mix the base material treated in step ② with the modified magnesium hydroxide powder coated with 0.5% magnesium hydroxide mass silane in the ratio of 1:0.3-1:0.9 to obtain composite reinforcement and Flame retardant; ④ Check the packaging. The present invention rationally utilizes the high magnesium content of dolomitic attapulgite and the characteristics of fiber-containing mineral attapulgite, and through the steps of crushing, crushing / coating, and compounding, the whole process has the advantages of reasonable raw material utilization, short process, enhanced thermodynamic performance and flame retardancy double effect.

Description

technical field [0001] The invention belongs to the field of preparation of non-metallic mineral powders, in particular to a dolomite attapulgite composite powder with dual functions of enhancing thermodynamic properties and flame retardancy for plastic and rubber substrates and a preparation method thereof. The technology makes reasonable use of the characteristics of dolomite attapulgite containing flaky dolomite and porous fibrous attapulgite minerals, and adopts crushing, crushing / coating, compounding and other treatment processes. The whole process has the advantages of reasonable utilization of raw material components and process flow The characteristics of short length and wide range of product performance. Background technique [0002] The theoretical chemical formulas of dolomite and attapulgite (also known as palygorskite) are CaMg(CO 3 ) 2 , Mg 5 Si 8 o 20 (OH) 2 (OH 2 ) 4 4H 2 O, while the dolomitic attapulgite is a natural mixed ore mainly containing do...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09C1/28C09C1/02C09C3/04C09C3/12C08K9/10C08K9/06C08K3/34C08K3/22C08K3/26
Inventor 余丽秀刘岩宋广毅张然张薇
Owner ZHENGZHOU MINERALS COMPOSITIVE UTILIZATION RES INST CHINESE GEOLOGICAL ACAD
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