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Preparation method of preposing-modified EG

A technology of modification and flame retardant modifier, which is applied in the manufacture of fire-retardant and flame-retardant filaments, and single-component polyester rayon. Good, improve the effect of dispersibility and compatibility

Inactive Publication Date: 2018-08-24
ZHEJIANG MODERN TEXTILE IND RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the EG variety has always been single and almost unchanged

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A preparation method of pre-modified EG, comprising the steps:

[0047] (1) 65 parts by weight of citric acid aqueous solution with a concentration of 9 wt %, 37 parts of an aqueous solution of sulfosalicylic acid with a concentration of 4 wt %, 4 parts of magnesium aluminum spinel, 1.5 parts of hydroxyapatite The whiskers and 11 parts of dawsonite whiskers were evenly mixed, moved to a hydrothermal reactor, continuously stirred and reacted for 4.5 hours at a temperature of 110 °C and a pressure of 0.2 MPa, and then cooled naturally under stirring, and heated at 45 °C with The high-energy ball mill was ground with liquid for 3 hours, filtered, and then calcined at 500 ° C for 4.5 hours, fully washed with deionized water, vacuum dried at 85 ° C, and then ground with a ball mill for 3.5 hours, and sieved through 250 mesh. Sexual agent;

[0048] (2) 9% propylene glycol, 2% butanediol, 0.7% urea co-solvent and 7% pre-flame retardant modifier obtained by (1) were added sequ...

Embodiment 2

[0052] A preparation method of pre-modified EG, comprising the steps:

[0053] (1) 55 parts by weight of citric acid aqueous solution with a concentration of 10 wt %, 30 parts of sulfosalicylic acid aqueous solution with a concentration of 3 wt %, 4 parts of magnesium aluminum spinel, and 1 part of hydroxyapatite The stone whiskers and 10 parts of dawsonite whiskers were evenly mixed, moved to a hydrothermal reactor, continuously stirred for 4 hours at a temperature of 120 °C and a pressure of 0.1 MPa, and then cooled naturally under stirring, and heated at 50 °C with The high-energy ball mill was ground with liquid for 2 hours, filtered, and then calcined at 520 ° C for 4 hours, fully washed with deionized water, vacuum dried at 80 ° C, and then ground with a ball mill for 4 hours, and sieved through 300 mesh to obtain the pre-flame retardant modifier. ;

[0054] (2) 10% of propylene glycol, 3% of butanediol, 0.5% of urea co-solvent and 10% of the pre-flame retardant modifie...

Embodiment 3

[0058] A preparation method of pre-modified EG, comprising the steps:

[0059] (1) 66 parts by weight of citric acid aqueous solution with a concentration of 8 wt %, 20 parts of an aqueous sulfosalicylic acid solution with a concentration of 5 wt %, 5 parts of magnesium aluminum spinel, and 1 part of hydroxyapatite The stone whiskers and 10 parts of dawsonite whiskers were evenly mixed, moved to a hydrothermal reactor, continuously stirred and reacted for 5 hours at a temperature of 100 °C and a pressure of 0.3 MPa, and then cooled naturally under stirring, and heated at 40 °C with The high-energy ball mill was ground with liquid for 4 hours, filtered, and then calcined at 480 ° C for 5 hours, fully washed with deionized water, vacuum dried at 90 ° C, and then ground with a ball mill for 3 hours, and sieved through 200 mesh to obtain the pre-flame retardant modifier. ;

[0060] (2) 8% propylene glycol, 1% butanediol, 1% urea co-solvent and 4% pre-flame retardant modifier prep...

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Abstract

A preparation method of preposing-modified EG includes the following steps: 1) mixing a citric acid water solution with magnesium aluminate spinel, hydroxyapatite crystal whiskers and dawsonite crystal whiskers and performing a hydrothermal reaction, and grinding, filtering, calcining, washing and drying a product to prepare a preposing flame retarding modifier; 2) mixing ethylene glycol, propylene glycol, butanediol and a urea cosolvent with the preposing flame retarding modifier, magnesium oxide and aluminum oxide, and grinding, dispersing and filtering the mixture to obtain a preposing-modified EG mother liquid; and 3) spray-adding the preposing-modified EG mother liquid into EG to obtain the preposing-modified EG. The preposing-modified EG, when being used for preparing a synthetic material having flame retarding function, has durable flame retarding effect.

Description

technical field [0001] The invention belongs to the technical field of EG variety development, and in particular relates to a preparation method of pre-modified EG. Background technique [0002] The Chinese name of EG is ethylene glycol, and the English name is ethylene glycol, referred to as EG. Its chemical formula is (CH2OH) 2 , is the simplest diol. Colorless, odorless, sweet liquid, can be mixed with water in any proportion, used as solvent, antifreeze and raw material for synthetic resin. As a basic chemical raw material, EG is active in nature and can undergo reactions such as esterification, etherification, alcoholization, oxidation, acetalization, and dehydration. Its molecules have two hydroxyl functional groups, so it is mainly used for synthetic resins, such as engineering plastics, building materials, mechanical parts, beverage bottles, packaging films, films, clothing, films and other products, which are closely related to people's life and production . Bu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/183C08K13/06C08K9/04C08K7/08C08K3/22D01F6/92D01F1/10D01F1/07
CPCC08G63/183C08K3/22C08K7/08C08K9/04C08K13/06C08K2003/222C08K2003/2227C08K2201/004C08K2201/011C08K2201/014C08K2201/016D01F1/07D01F1/10D01F6/92
Inventor 范艳苹李琪陶仁中胡超韩文娟
Owner ZHEJIANG MODERN TEXTILE IND RES INST
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