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

A kind of s-triazine flame retardant and its preparation method and application

A technology of flame retardant and s-triazine, which is applied in the field of flame retardant and its synthesis and preparation, can solve problems such as difficult adhesion, and achieve the effects of less smoke generation, high char formation rate, and environmental friendliness

Active Publication Date: 2016-05-04
ZHEJIANG SCI-TECH UNIV
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The s-triazine flame retardant compound is difficult to attach to the fabric, and its flame retardant performance needs to be further improved!

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
  • A kind of s-triazine flame retardant and its preparation method and application
  • A kind of s-triazine flame retardant and its preparation method and application
  • A kind of s-triazine flame retardant and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Step 1: Full dissolution of cyanuric chloride

[0044] In a 500ml four-necked flask equipped with a stirrer and a thermometer, add 8g (0.043mol) of cyanuric chloride and 250ml (196.13g) of acetone to fully dissolve to obtain a base liquid.

[0045] Step 2: Preparation of s-triazine flame retardant

[0046] Move the above base liquid to a temperature of 0°C, and continuously add 15.90 g (0.0946 mol) of diethyl hydroxymethyl phosphate to the base liquid, and the addition is completed in 1 hour; Potassium aqueous solution adjusts pH=5. At different stages of the reaction, draw a small amount of reaction solution, and use thin-layer chromatographic analysis to determine whether the reaction of cyanuric chloride is complete. After the diethyl hydroxymethyl phosphate has been added dropwise, move to room temperature at 25°C for 35 minutes until cyanuric chloride disappears.

[0047] The concrete reaction formula of this step is as follows:

[0048]

[0049] Step 3: Pur...

Embodiment 2

[0057] Step 1: Full dissolution of cyanuric chloride

[0058] In a 500ml four-neck flask equipped with a stirrer and a thermometer, add 8g (0.043mol) of cyanuric chloride and 200ml (156.9g) of acetone to fully dissolve to obtain a base solution.

[0059] Step 2: Preparation of s-triazine flame retardant

[0060] Move the above base liquid to a temperature of -5°C, and continuously add 15.13g (0.090mol) of diethyl hydroxymethyl phosphate to the base liquid dropwise, and the dropwise addition is completed in 1 hour; during this period, 5% by mass of Potassium carbonate aqueous solution adjusts pH=6. At different stages of the reaction, draw a small amount of reaction solution, and use thin-layer chromatographic analysis to determine whether the reaction of cyanuric chloride is complete. After the diethyl hydroxymethyl phosphate has been added dropwise, move to room temperature at 25°C for 30 minutes until cyanuric chloride disappears.

[0061] The concrete reaction formula of...

Embodiment 3

[0067] Step 1: Full dissolution of cyanuric chloride

[0068] In a 500ml four-necked flask equipped with a stirrer and a thermometer, add 8g (0.043mol) of cyanuric chloride and 300ml (235.35g) of acetone to fully dissolve to obtain a base liquid.

[0069] Step 2: Preparation of s-triazine flame retardant

[0070] Move the above base liquid to a temperature of 5°C, and continuously add 14.46g (0.086mol) of diethyl hydroxymethyl phosphate to the base liquid dropwise, and the dropwise addition is completed in 1 hour; Potassium aqueous solution adjusts pH=7. At different stages of the reaction, draw a small amount of reaction solution, and use thin-layer chromatographic analysis to determine whether the reaction of cyanuric chloride is complete. After the diethyl hydroxymethyl phosphate has been added dropwise, move to room temperature at 25°C for 40 minutes until cyanuric chloride disappears.

[0071] The concrete reaction formula of this step is as follows:

[0072]

[00...

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
limiting oxygen indexaaaaaaaaaa
limiting oxygen indexaaaaaaaaaa
Login to View More

Abstract

The invention discloses a smtriazine-type flame retardant, a preparation method and application of the smtriazine-type flame retardant. The structure of the smtriazine-type flame retardant is shown as a formula I, the method is easy in preparation and easy to implement, and the prepared smtriazine-type flame retardant is high in heat stability and excellent in physical and mechanical properties. The method comprises the following steps: mixing and dissolving cyanuric chloride and acetone, reducing the temperature, continuously dripping an aqueous solution of potassium carbonate to regulate the pH to be 5-7, reacting at the temperature of 15-45 DEG C for 15-60 minutes after dripping, and performing aftertreatment to obtain the smtriazine-type flame retardant. In the used method for preparing the smtriazine-type flame retardant, the raw materials are readily available; the obtained smtriazine-type flame retardant is white in color, excellent in heat stability and physical and mechanical properties and high in yield; a fabric finished by the flame retardant is small in combustion smoke amount, high in char yield and environmentally friendly and can obtain long-lasting flame retardant property. The product is high in washing resistance after being applied to the fabric and is ecological, environmentally friendly and convenient to use, and the colored light and handfeel of the fabric are hardly influenced.

Description

technical field [0001] The invention relates to the field of flame retardant and its synthesis and preparation, in particular to a s-triazine type flame retardant, its preparation method and its application in the preparation of natural fibers. Background technique [0002] In today's society, the global fire situation is very serious. In recent years, fires have occurred frequently in China, which poses a serious threat to the safety of human life and property. In order to prevent the occurrence of fire, in addition to taking fire prevention measures, textiles with flame retardant properties can also be used. However, many flame retardants currently face problems such as poor flame retardant effect, low mechanical strength, and poor washing limit oxygen index (LOI). The application of flame retardants is limited. [0003] At present, my country's flame-retardant finishing of textiles is still in the initial stage of exploration. Halogen-based and boron-based flame retarda...

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 Patents(China)
IPC IPC(8): D06M13/447C07F9/6521D06M101/10D06M101/06
Inventor 沈一峰杨雷姜建堂
Owner ZHEJIANG SCI-TECH UNIV
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