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High-molecular polymer with self restoration function as well as preparation method and application thereof

A high-molecular polymer, self-healing technology, applied in the direction of organic insulators, plastic/resin/wax insulators, electrical components, etc., can solve problems such as the inability to achieve self-repairing, and achieve the effect of easy operation and simple steps

Inactive Publication Date: 2018-08-14
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of this, the present invention proposes a high molecular polymer with self-healing function and its preparation method and application, aiming to solve the technical problem that the high molecular polymer in the prior art cannot achieve self-repair

Method used

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  • High-molecular polymer with self restoration function as well as preparation method and application thereof
  • High-molecular polymer with self restoration function as well as preparation method and application thereof
  • High-molecular polymer with self restoration function as well as preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0038] (1) Disperse 50g of β-CD cyclodextrin in 1200mL of deionized water, slowly add 13g of p-toluenesulfonyl chloride under vigorous stirring, react at room temperature for 12 hours, add 20g of NaOH, filter to remove excess p-toluene Sulfonyl chloride, add ammonium chloride until the pH value of the solution is 8;

[0039] (2) Place the solution obtained above in a refrigerator at 4°C to cool, after a period of time, suction and filter to obtain a precipitate, dissolve the precipitate in water, repeat this step at least twice to obtain the intermediate product TOS-CD;

[0040] (3) Take 0.5g NH 2 -Al 2 o 3 Dissolve NPs in 25ml dimethyl sulfoxide, stir for 30min, add an appropriate amount of TOS-CD obtained in step (2), adjust the pH to 7~8 when TOS-CD is completely dissolved; then, under the protection of inert gas, heat to 65 ℃, and reacted for 12 hours; centrifuged to remove dimethyl sulfoxide, and then washed 3 times with ethanol to obtain the product main molecule CD-...

Embodiment 2

[0047] (1) Disperse 50g of β-CD cyclodextrin in 1200mL of deionized water, slowly add 13g of p-toluenesulfonyl chloride under vigorous stirring, react at room temperature for 12 hours, add 20g of NaOH, filter to remove excess p-toluene Sulfonyl chloride, add ammonium chloride until the pH value of the solution is 8;

[0048] (2) Place the solution obtained above in a refrigerator at 4°C to cool, after a period of time, suction and filter to obtain a precipitate, dissolve the precipitate in water, repeat this step at least twice to obtain the intermediate product TOS-CD;

[0049] (3) Take 0.5g NH 2 -Al 2 o 3 Dissolve NPs in 25ml dimethyl sulfoxide, stir for 30min, add an appropriate amount of TOS-CD obtained in step (2), adjust the pH to 7~8 when TOS-CD is completely dissolved; then, under the protection of inert gas, heat to 65 ℃, and reacted for 12 hours; centrifuged to remove dimethyl sulfoxide, and then washed 3 times with ethanol to obtain the product main molecule CD-...

Embodiment 3

[0056] (1) Disperse 50g of β-CD cyclodextrin in 1200mL of deionized water, slowly add 13g of p-toluenesulfonyl chloride under vigorous stirring, react at room temperature for 12 hours, add 20g of NaOH, filter to remove excess p-toluene Sulfonyl chloride, add ammonium chloride until the pH value of the solution is 8;

[0057] (2) Place the solution obtained above in a refrigerator at 4°C to cool, after a period of time, suction and filter to obtain a precipitate, dissolve the precipitate in water, repeat this step at least twice to obtain the intermediate product TOS-CD;

[0058] (3) Take 0.5g NH 2 -Al 2 o 3 Dissolve NPs in 25ml dimethyl sulfoxide, stir for 30min, add an appropriate amount of TOS-CD obtained in step (2), adjust the pH to 7~8 when TOS-CD is completely dissolved; then, under the protection of inert gas, heat to 65 ℃, and reacted for 12 hours; centrifuged to remove dimethyl sulfoxide, and then washed 3 times with ethanol to obtain the product main molecule CD-...

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Abstract

The invention provides a high-molecular polymer with a self restoration function. The high-molecular polymer is prepared from the following raw materials of 0.2 to 2 weight parts of subject molecules,0.3 to 3 weight parts of object molecules, 0.25 to 3 weight parts of linear polymer molecules, 250 to 300 volume parts of base body materials and 0.1 to 1 volume part of crosslinking agents and 0.2 to 8 weight parts of initiators. By using polyacrylate copolymer elastomers as substrate materials, subject group cyclodextrin and object group adamantane are introduced into a copolymer system; the cyclodextrin groups and the adamantane groups are combined through the supermolecule action force of the subject and object recognition; a crosslinking structure is formed; when the material is sufferedfrom the damage such as aging, the free cyclodextrin in the damage cross section position has the trends to be combined with adamantane groups again in the normal temperature environment; the crosslinking points are generated again; the damage can be automatically restored through the re-generation of the crosslinking points; the restoration can be performed for many times; the external conditionstimulation is not needed.

Description

technical field [0001] The invention relates to the technical field of chemical materials, in particular to a high molecular polymer with self-repairing function. Background technique [0002] During the use of polymer materials, due to the long-term stress and the damage of light, heat, ultraviolet rays and external forces in the external environment, the aging of the material and slight damage will be caused, even if there is no substantial damage at that time, but in the After that, it will gradually develop and deteriorate, and cause damage and cause dangerous events, environmental pollution, waste of resources and other consequences. Therefore, drawing lessons from natural organisms to achieve the healing process of their own wounds through a certain mechanism, the preparation of polymers with healing ability Materials have important practical significance for enhancing the mechanical strength, reliability and durability of materials and reducing production costs. They ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F291/12C08F220/18C08F222/14C08F220/20C08B37/16H01B3/30
CPCH01B3/307C08B37/0012C08B37/0015C08F251/00C08F271/02C08F285/00C08F222/102C08F220/1804
Inventor 林木松陈天生付强彭磊张晟郑重潘君镇
Owner ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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