Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Eigen antiflaming semi-aromatic copolymerization aromatic ether amide and preparation method thereof

A technology of copolyaryl ether amide and intrinsic flame retardancy, which is applied in the field of synthetic flame-retardant polymer materials, can solve the problems of poor flame-retardant durability, migration of additives, poor compatibility between additives and substrates, etc., and achieve excellent flame retardancy , excellent mechanical properties, the effect of improving mechanical properties

Active Publication Date: 2018-07-31
SICHUAN UNIV
View PDF4 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such as DuPont's (CN201380045938.9) halogen-free flame-retardant polyamide, it is reported that adding a halogen-free flame retardant to realize the flame retardancy of polyamide, but this method has poor compatibility between the additive and the substrate, the additive will migrate, and the flame retardancy poor durability

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
  • Eigen antiflaming semi-aromatic copolymerization aromatic ether amide and preparation method thereof
  • Eigen antiflaming semi-aromatic copolymerization aromatic ether amide and preparation method thereof
  • Eigen antiflaming semi-aromatic copolymerization aromatic ether amide and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] (332g, 1mol) bis(4-fluorobenzoyl) butanediamine (BFBB), (212g, 2mol) sodium carbonate, 200ml toluene, (332.5g, 0.95mol) 9,9-bis(4-hydroxybenzene Base) fluorene (also known as bisphenol fluorene, FDP), (16.2g, 0.05mol) DOPO-HQ and 1500ml formamide were added to the reaction vessel, and then under the protection of nitrogen, dehydration reaction was carried out at a temperature of 175°C for 3h, and then at a temperature of 200°C React for 8 hours to obtain a viscous copolymer solution; then purify the copolymer solution, the specific steps are: cool the above solution to 120°C, pour it into water while stirring, and precipitate the gray thin strip polymer crude product; The mixture was washed with water and ethanol, dried at 80°C for 8 hours, pulverized, washed with deionized water and ethanol respectively, and dried at 80°C for 10 hours to obtain purified bisphenol fluorene copolymer polyarylether succinamide containing DOPO-HQ .

[0051] The intrinsic viscosity [η] of ...

Embodiment 2～4

[0053] The ratio of raw materials in the bisphenol fluorene copolymerized aryl ether succinamide prepared in Example 1 was adjusted to prepare bisphenol fluorene copolymerized aryl ether succinamide with different DOPO-HQ contents. The specific data are shown in Table 1.

[0054] Table 1

[0055]

Embodiment 5

[0057] (360g, 1mol) bis(4-fluorobenzoyl) hexamethylenediamine (BFBH), (276g, 2mol) potassium carbonate, 200ml p-xylene, (334.5g, 0.95mol) 4,4'-diphenylene Add methyl bisphenol (also known as bisphenol BP, DHTPM), (16.2g, 0.05mol) DOPO-HQ and 1500ml sulfolane into the reaction vessel, then dehydrate at 190°C for 1h under the protection of nitrogen, and then dehydrate at 200°C React for 12 hours to obtain a viscous copolymer solution. Cool the above solution to 80°C, pour it into water while stirring, and precipitate a gray thin strip polymer product; wash the above polymer with water and ethanol, and dry at 80°C for 8 hours , pulverized, washed with deionized water and ethanol respectively, and dried at 80° C. for 10 h to obtain purified bisphenol BP copolyaryl ether adipamide containing DOPO-HQ.

[0058] The intrinsic viscosity [η] of the copolyaryl ether adipamide is 0.82dL / g; the limiting oxygen index is 30.5%; the vertical burning grade is V-2, and the tensile strength is 8...

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
Intrinsic viscosityaaaaaaaaaa
Tensile strengthaaaaaaaaaa
Intrinsic viscosityaaaaaaaaaa
Login to View More

Abstract

The invention discloses an eigen antiflaming semi-aromatic copolymerization aromatic ether amide and a preparation method thereof. Diphenol monomer containing phosphorus / silicon or difluoro-malonic acid diamide containing silicon or difluoro-malonic acid diamide monomer containing phosphorus is utilized, and solution polycondensation is carried out to prepare the antiflaming semi-aromatic copolymerization aromatic ether amide. Intrinsic viscosity number [eta] of the semi-aromatic copolymerization aromatic ether amide is 0.65-1.01 deciliters per gram, the vertical flaming class is V-2-V-0, thelimit oxygen index is 26.8-45.5%, and the tensile strength is 65-108 megapascals. The eigen antiflaming semi-aromatic copolymerization aromatic ether amide has the advantages of halogen-free flame retardant, non-molten drop performance, easy processing, high mechanical strength and the like, and the eigen antiflaming semi-aromatic copolymerization aromatic ether amide taken as engineering plasticsis wider in application.

Description

technical field [0001] The invention belongs to the technical field of synthesizing flame-retardant polymer materials. Specifically, the present invention relates to a class of copolyaryl ether amides containing phosphorus and silicon elements and a preparation method thereof. Background technique [0002] Semi-aromatic polyamides have excellent mechanical properties and chemical resistance, and are widely used in people's daily life, especially in industries such as electronic appliances, automobile manufacturing and aerospace. However, the processing window of semi-aromatic polyamide is narrow, and it is flammable, so its application is limited to a certain extent. [0003] As a high-performance plastic, semi-aromatic polyaryletheramide not only has the excellent mechanical properties and thermal properties of polyarylether and semi-aromatic polyamide, but also improves the toughness and processing fluidity of polyarylether, while improving The defect of relatively narro...

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): C08G65/40
CPCC08G65/4006C08G65/4093
Inventor 王玉忠龙家伟陈力史小慧沈聃李映明徐博仁
Owner SICHUAN 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
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