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

Intumescent flame retardant polybutylene succinate and preparation method thereof

A polybutylene succinate, intumescent flame retardant technology, applied in the field of flame retardant materials, can solve the problems of high cost, complex process, difficult industrialized production, etc., and achieves low production cost, simple process, and pollution-free production. Effect

Active Publication Date: 2011-12-14
UNIV OF SCI & TECH OF CHINA
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the complex process and high cost of flame retardant and polybutylene succinate through melt copolymerization, it is only seen in laboratory research, and it is still difficult to apply to industrial production.

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
  • Intumescent flame retardant polybutylene succinate and preparation method thereof
  • Intumescent flame retardant polybutylene succinate and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Firstly, the polybutylene succinate was dried at 65°C for 12 hours, the intumescent flame retardant was dried at 80°C for 12 hours, and the silica was dried at 70°C for 12 hours.

[0020] 40 grams of polybutylene succinate through the above-mentioned drying process are melted in a banbury mixer (the temperature is about 115 ° C), and then 8.31 grams of ammonium polyphosphate, 1.19 dicyandiamide and 0.5 gram of silicon dioxide are added, Melting and blending at a rotating speed of 30rmp for 10-15 minutes, the intumescent flame retardant and the synergist form nanoscale dispersion in the polybutylene succinate matrix, and the material is cut to obtain the intumescent flame-retardant polybutylene succinate of the present invention. Butylene glycol diacid.

[0021] By using a limiting oxygen index tester and a vertical combustion tester to test the intumescent flame-retardant polybutylene succinate sample prepared in this example, it can be known that the oxygen index of th...

Embodiment 2

[0025] Firstly, the polybutylene succinate was dried at 70°C for 8 hours, the intumescent flame retardant was dried at 80°C for 12 hours, and the silica was dried at 80°C for 12 hours.

[0026] Melt 42.5 grams of the above-mentioned dry-treated polybutylene succinate in a banbury mixer (the temperature is about 115° C.), and then add 4.8 grams of a compound composed of melamine phosphate and ammonium polyphosphate in a mass ratio of 1:2. Compound, 1.2 grams of melamine and 1.5 grams of silicon dioxide were blended for 10-15 minutes at a rotating speed of 30rmp, and the intumescent flame retardant and synergist formed nanoscale dispersion in the polybutylene succinate matrix. material, that is, to obtain intumescent flame-retardant polybutylene succinate.

[0027] By using a limiting oxygen index tester and a vertical combustion tester to test the intumescent flame-retardant polybutylene succinate sample prepared in this example, it can be known that the oxygen index of this ma...

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
decomposition temperatureaaaaaaaaaa
thermal decomposition temperatureaaaaaaaaaa
thermal decomposition temperatureaaaaaaaaaa
Login to View More

Abstract

The invention discloses an intumescent flame-retardant polybutylene succinate and a preparation method thereof, which is characterized in that 80-85% of polybutylene succinate and 15-20% of intumescent flame retardant , and 0-3% synergist can also be added, and the product is sheared and melted in an internal mixer to obtain the product. High-resolution transmission electron microscope photos show that the flame retardant has formed a nano-scale dispersion in the polybutylene succinate matrix; its oxygen index reaches 40, and it passes the vertical combustion test standard UL-94V0 level; the initial thermal decomposition temperature is 321 ° C , the maximum thermal decomposition temperature is 353°C, and the residual mass fraction is 11.6% at 700°C; the scanning electron microscope photos of the carbon layer show that a dense expanded carbon layer is formed, and there are many complete bubbles; it can be used for foaming materials and toys, Packaging materials for home appliances, daily chemicals, food, and medicines.

Description

technical field [0001] The invention belongs to the technical field of flame-retardant materials, and in particular relates to intumescent flame-retardant polybutylene succinate and a preparation method thereof. Background technique [0002] According to Baidu Encyclopedia, polybutylene succinate (PBS), also known as polybutylene succinate or polybutylene succinate, contains ester bonds that are easily hydrolyzed in the main chain, and the main chain is soft. A semi-crystalline thermoplastic resin with complete biodegradability, with a melting point of 114°C and a crystallinity of 30-45% depending on the molecular weight and molecular weight distribution. The performance is between polyethylene and polypropylene, and it can be directly used as plastic processing. Polybutylene succinate has good processing performance, and can be processed on ordinary processing and molding equipment, and the processing temperature range is 140-260°C. It can be processed by injection moldin...

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): C08L67/02C08K13/04C08K7/22C08K3/32C08K5/52C08K5/21C08K5/315C08K5/3492
Inventor 胡源陈阳娟宋磊
Owner UNIV OF SCI & TECH OF CHINA
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