Preparation method of polymer-coated ardealite composite master batch

A phosphogypsum and polymer technology, applied in chemical instruments and methods, dyeing low molecular organic compound treatment, dyeing high molecular organic compound treatment, etc. It can improve the dispersibility, enhance the interfacial interaction and compatibility, and improve the comprehensive performance.

Pending Publication Date: 2022-04-12
GUIZHOU UNIV
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Coupling agents such as silane and phthalate esters and stearic acid are usually used to modify the surface hydroxyl groups of inorganic particles. However, the molecular chains of these modifiers are short and cannot penetrate into the polymer matrix, and the coating layer is thin. The mechanical properties of polymer materials are limited

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of polymer-coated ardealite composite master batch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A preparation method of polymer-coated phosphogypsum composite masterbatch, comprising the following steps:

[0024] S1. Put the waste phosphogypsum residue into a gradient furnace, calcinate at 600°C for 2 hours, put it into a ball mill for ball milling, the rotation speed of the ball mill is 500rpm, ball mill for 60min, and sieve to obtain anhydrous phosphogypsum. Under nitrogen atmosphere, stirring and mixing anhydrous phosphogypsum with sodium hydroxide and sodium sulfate aqueous solution to obtain a mixed liquid, which is successively filtered, washed and dried to obtain hydroxylated phosphogypsum.

[0025] S2. Add 2.0 g of neoalkoxy tris(dioctylpyrophosphate acyloxy) titanate (TCA-L38) and 7.5 mL of deionized water into 150 mL of absolute ethanol for 8 minutes of ultrasonic treatment to obtain a mixture. And place the mixture in a four-neck flask equipped with a condensing reflux device, a thermometer, a stirrer, and a nitrogen device, feed nitrogen, stir at a spe...

Embodiment 2

[0028] A preparation method of polymer-coated phosphogypsum composite masterbatch, comprising the following steps:

[0029] S1. Put the waste phosphogypsum residue into a gradient furnace, calcinate it at 550°C for 3 hours, put it into a ball mill for ball milling, the rotation speed of the ball mill is 500rpm, ball mill for 60min, and sieve to obtain anhydrous phosphogypsum. Under nitrogen atmosphere, stirring and mixing anhydrous phosphogypsum with sodium hydroxide and sodium sulfate aqueous solution to obtain a mixed liquid, which is successively filtered, washed and dried to obtain hydroxylated phosphogypsum.

[0030] S2, 3.0g TCA-L38 and 7.5mL deionized water were added to 150mL absolute ethanol and subjected to ultrasonic treatment for 8 minutes to obtain a mixture, and the mixture was placed in a condensing reflux device, a thermometer, a stirrer, and a nitrogen device. Into the four-necked flask, nitrogen gas was introduced, and the mixture was stirred at a speed of 40...

Embodiment 3

[0033] A preparation method of polymer-coated phosphogypsum composite masterbatch, comprising the following steps:

[0034] S1. Put the waste phosphogypsum residue into a gradient furnace, calcinate at 600°C for 2 hours, put it into a ball mill for ball milling, the rotation speed of the ball mill is 500rpm, ball mill for 60min, and sieve to obtain anhydrous phosphogypsum. Under nitrogen atmosphere, stirring and mixing anhydrous phosphogypsum with sodium hydroxide and sodium sulfate aqueous solution to obtain a mixed liquid, which is successively filtered, washed and dried to obtain hydroxylated phosphogypsum.

[0035] S2. Add 2.5g of TCA-L38 and 7.5mL of deionized water into 200mL of absolute ethanol and perform ultrasonic treatment for 8min to obtain a mixture. Put the mixture in a four-neck flask equipped with a condensing reflux device, a thermometer, a stirrer, and a nitrogen device, feed nitrogen, stir at a speed of 320 rpm, and heat up to 60 °C at the same time, then ad...

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

No PUM Login to view more

Abstract

The invention provides a preparation method of a polymer-coated ardealite composite master batch, and relates to the technical field of hydrophobic modification of inorganic fillers and preparation of composite materials. The method comprises the following steps: calcining ardealite waste residue as a raw material in a gradient furnace, grinding and screening to obtain anhydrous ardealite, treating the anhydrous ardealite with sodium hydroxide and anhydrous sodium sulfate to obtain hydroxylated ardealite, carrying out surface modification on the hydroxylated ardealite with a modifier to obtain modified ardealite, and drying to obtain the modified ardealite. And carrying out in-situ suspension polymerization on the modified ardealite, a vinyl monomer and a reaction aid to prepare the hydrophobic polymer coated ardealite composite master batch. The polymer-coated ardealite composite master batch can be used as a filler in high polymer materials such as plastic or rubber, can significantly enhance molecular winding and interface interaction between the ardealite and a high polymer matrix, and significantly improves the comprehensive performance of a high polymer composite material. Meanwhile, the method has important significance on resource utilization of the ardealite, and the application range of the ardealite can be widened.

Description

technical field [0001] The invention relates to the technical field of inorganic filler modification and preparation of composite materials, in particular to a method for preparing polymer-coated phosphogypsum composite master batches. Background technique [0002] Phosphogypsum is the main solid waste produced in the wet process of phosphoric acid. For every 1 ton of phosphoric acid produced, about 5 tons of phosphogypsum slag will be produced as a by-product. The main component is CaSO 4 2H 2 O, also contains impurities such as undecomposed phosphate rock, fluoride, phosphoric acid, organic matter, and acid insoluble matter. The comprehensive utilization rate of phosphogypsum is low. The domestic annual output of phosphogypsum is 70 million tons, and the comprehensive utilization rate is about 40%. As a result, the stockpiling of phosphogypsum has caused huge pressure on the ecological environment. Every 10,000 tons of phosphogypsum piled up in the open air accounts for ...

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
IPC IPC(8): C09C1/02C09C3/06C09C3/04C09C3/10C09C3/08C08K9/10C08K9/04C08K9/02C08K3/30
Inventor 谢贵明刘浩聂晨晨
Owner GUIZHOU UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap