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

Bi-phosphorous flame-retardant copolymer nylon and preparation method thereof

A technology of copolymerizing nylon and linear alkyl, which is applied in the field of polyamide and its preparation, can solve the problems of unsolved flame retardant decomposition, affecting the flame retardant performance and mechanical properties of flame retardant nylon 66, and achieves droplet-free mechanics Performance, high flame retardancy, high mechanical properties

Inactive Publication Date: 2015-12-16
SICHUAN DONGFANG INSULATING MATERIAL
View PDF2 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent (publication number CN1266445A) discloses "polymer-bonded non-halogen flame retardant composition", which adopts reactive flame retardant (CEPPA) and nylon 66 monomer to copolymerize to obtain flame retardant nylon 66 polymer, The introduction of flame retardant molecules into the polymer molecular chain keeps the flame retardant performance of the polymer for a long time. However, during the polymerization and processing of nylon 66, the problem of decomposition of the flame retardant due to excessive temperature has not been solved. This affects the flame retardancy and mechanical properties of flame retardant nylon 66

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
  • Bi-phosphorous flame-retardant copolymer nylon and preparation method thereof
  • Bi-phosphorous flame-retardant copolymer nylon and preparation method thereof
  • Bi-phosphorous flame-retardant copolymer nylon and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-1

[0042] The phosphine oxide-based dibasic acid BCPPO and the phosphine oxide-based diamine BNPPO were selected as reactants, and the temperature in the heating interval was set at 80°C to prepare 700 moles of bisphosphorus organic phosphine ammonium salt (1#) for future use.

Embodiment 1-2

[0044] The phosphine oxide-based dibasic acid BBPPO and the phosphine oxide-based diamine MDHPO were selected as reactants, and the temperature in the heating interval was set at 80°C to prepare 850 moles of bisphosphorus organic phosphine ammonium salt (2#) for future use.

Embodiment 1-3

[0046] The phosphine oxide-based dibasic acid CEMPO and the phosphine oxide-based diamine CNMPO were selected as reactants, and the temperature in the heating interval was set at 80°C to prepare 900 moles of bisphosphorus organic phosphine ammonium salt (3#) for future use.

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
melting pointaaaaaaaaaa
tensile strengthaaaaaaaaaa
tensile strengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses bi-phosphorous flame-retardant copolymer nylon and a preparation method thereof. The nylon is characterized in that a midbody which is synthesized by diamine of phosphine oxide category and dibasic alcohol of phosphine oxide category, namely bi-phosphorous organophosphoryl ammonium salt, is adopted, and the bi-phosphorous flame-retardant copolymer nylon is prepared through copolymerization between the bi-phosphorous organophosphoryl ammonium salt and polyamide 66 salt. The bi-phosphorous flame-retardant copolymer nylon is an amorphous glass form polymer in milk white, the melting range is between 255 DEG C to 275 DEG C, and the relative viscosity is 2.60-2.90; the total phosphorus content of the bi-phosphorous flame-retardant copolymer nylon ranges from 0.6% to 0.8%, the flame retardation level is grade UL-94V-0, the tensile strength is not lower than 75.0 Mpa, and the elongation at break ranges from 54.5% to 60.0%. The bi-phosphorous flame-retardant copolymer nylon has the advantages being halogen-free flame retardant, high in viscosity, free of molten drops and high in mechanical strength, and the nylon can be widely applied to the fields of fibers and textile.

Description

technical field [0001] The invention belongs to polyamide and its preparation. It relates to a double phosphorus flame-retardant copolymerized nylon and a preparation method thereof. The present invention adopts the intermediate bisphosphorus organic phosphine ammonium salt synthesized by phosphine oxide diamine and phosphine oxide diol, and copolymerizes with nylon 66 salt to prepare biphosphorus flame retardant copolymerized nylon, and the prepared bisphosphorus flame retardant copolymerized nylon It has the characteristics of halogen-free flame retardancy, high viscosity, no droplet and high mechanical strength, and can be widely used in fiber and textile fields. Background technique [0002] Polyamide (Polyamide, commonly known as nylon) material has a wide range of uses due to its outstanding mechanical properties, mechanical properties, electrical properties, wear resistance, oil resistance, chemical resistance, etc., and is commonly used in automobiles, transportatio...

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 Applications(China)
IPC IPC(8): C08G69/42D01F6/90
Inventor 袁港余莉李建学贾锐
Owner SICHUAN DONGFANG INSULATING MATERIAL
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