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

Carbodiimide polymer, preparation method thereof and polymer material containing the carbodiimide polymer

A technology of carbodiimide and polymer materials, which is applied in the field of carbodiimide polymers and their preparation and polymer materials containing them, and can solve the problem of poor aging resistance of polymer materials and compatibility with polymers Poor performance, poor mechanical properties and other problems, to achieve excellent thermal stability, not easy to decompose, simple blending effect

Active Publication Date: 2020-11-03
SHANGHAI LANGYI FUNCTIONAL MATERIALS
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the defects of poor thermal stability, poor compatibility with polymers, low anti-aging performance of polymer materials and weak mechanical properties of carbodiimide anti-hydrolysis stabilizers in the prior art, the present invention provides A kind of carbodiimide polymer and its preparation method and polymer material containing it

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
  • Carbodiimide polymer, preparation method thereof and polymer material containing the carbodiimide polymer
  • Carbodiimide polymer, preparation method thereof and polymer material containing the carbodiimide polymer
  • Carbodiimide polymer, preparation method thereof and polymer material containing the carbodiimide polymer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Add 100g of bis[3-isopropenyl-dimethylbenzyl]carbodiimide and 500ml of toluene into a 1000ml glass reaction bottle, and add ferric acetylacetonate and triisocyanate at a molar ratio of 1:15 in sequence under nitrogen protection. A total of 35mg (350ppm) of butylaluminum initiator was reacted in a constant temperature water bath at 40°C for 3h. After the reaction, a small amount of ethanol was added to the reaction system for washing to obtain a white powdery solid polymer with a softening point of 152°C.

Embodiment 2

[0053] Add 2000g of bis[3-isopropenyl-dimethylbenzyl]carbodiimide and 5000ml of dichloroethane into a 10L glass reactor, and add MoCl with a molar ratio of 1:20 in sequence under nitrogen protection. 5 and Al(i-Bu) 3 A total of 800mg (400ppm) of the initiator was reacted in a constant temperature water bath at 50°C for 4h. After the reaction, a small amount of methanol was added to the reaction system for washing to obtain a white powdery solid polymer with a softening point of 155°C.

Embodiment 3

[0055] Add 200g of bis[3-isopropenyl-dimethylbenzyl]carbodiimide and 1000ml of toluene into a 1000ml glass reaction bottle, and then add iron acetylacetonate and triisocyanurate with a molar ratio of 1:15 in sequence under nitrogen protection. A total of 10mg (50ppm) of butylaluminum initiator was reacted in a constant temperature water bath at 40°C for 1h. After the reaction, a small amount of ethanol was added to the reaction system for washing to obtain a white powdery solid polymer with a softening point of 145°C.

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
Softening pointaaaaaaaaaa
Softening pointaaaaaaaaaa
Softening pointaaaaaaaaaa
Login to View More

Abstract

The invention discloses a carbodiimide polymer, a preparation method thereof and a polymer material containing the carbodiimide polymer, wherein the structural formula of the carbodiimide polymer is shown as a formula I. The preparation method comprises the following steps: adding an initiator into a mixture of bis-[3-isopropenyldimethylbenzyl]-carbodiimide and an organic solvent, and carrying outthepolymerization reaction at the temperature of 30-60 DEG C for 2-5 hours. The polymer material containing a carbodiimide polymer according to the present invention comprises a carbodiimide polymerand a material containing an ester polymer. The carbodiimide polymer provided by the invention has excellent thermal stability, is not easy to decompose in the processing process, has a high softeningpoint, can be simply blended with plastic particles, and reduces the processing difficulty; the material has very good compatibility with the material, and is not easy to migrate in the use process;according to the preparation method, a polymer with large molecular weight can be obtained under a relatively mild condition; in addition, the polymer material containing the polymer has high aging resistance and strong mechanical properties.

Description

technical field [0001] The invention relates to a carbodiimide polymer, a preparation method thereof and a polymer material containing the same. Background technique [0002] Carbodiimide compounds have been proven to be used as excellent anti-hydrolysis stabilizers in a series of materials such as thermoplastics, polyols, and polyurethanes. The most obvious feature of this type of material is that the molecular structure contains ester bonds. The presence of ester bonds makes this type of material prone to breakage of ester bonds and formation of terminal carboxyl groups under humidity or high temperature. The terminal carboxyl group further catalyzes the hydrolysis to accelerate the breakage of the molecular chain, which greatly reduces the performance of the material. The presence of carbodiimide compounds can eliminate the residual acid and carboxyl groups in the polymer and inhibit the occurrence of hydrolysis, which not only greatly prolongs the service life of the ma...

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): C08F112/34C08L67/02C08L25/18
CPCC08F112/34C08L67/02C08L25/18
Inventor 唐晓峰朱旭逯琪张文彬丁群余秋平
Owner SHANGHAI LANGYI FUNCTIONAL MATERIALS
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