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Polyamide/oligomeric silsesquioxane nano-hybrid material and preparation method thereof

A technology of polysilsesquioxane and nano-hybrid materials, which is applied in the field of star-shaped high-fluidity polyamide/oligomeric silsesquioxane nano-hybrid materials and its preparation, can solve polyamide fluidity and thermal /Mechanical property conflicts and other issues, to achieve the effect of high melt fluidity and simple process

Inactive Publication Date: 2011-03-30
TORAY FIBER RES INST(CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a star-shaped high-fluidity polyamide / oligomeric silsesquioxane nano-hybrid material to solve the problem of conflicting polyamide fluidity and thermal / mechanical properties in the prior art

Method used

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  • Polyamide/oligomeric silsesquioxane nano-hybrid material and preparation method thereof
  • Polyamide/oligomeric silsesquioxane nano-hybrid material and preparation method thereof
  • Polyamide/oligomeric silsesquioxane nano-hybrid material and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0057] Modification of oligosilsesquioxane:

[0058] 1) Under a nitrogen atmosphere, 2.91 g of BTDA was dissolved in N-methylpyrrolidone, and after being fully dissolved, a solution of 1.3 g of OAPS was added dropwise thereto. After completion, react at 30°C for 20 hours under a nitrogen atmosphere to obtain an oligomeric silsesquioxane with an anhydride functional group at the end;

[0059] 2) Weighing 1.17 g of aminocaproic acid and adding it to the above-mentioned oligomeric silsesquioxane solution with an anhydride functional group at the end, reacting at 30° C. for 20 hours under a nitrogen atmosphere to obtain an initiator-modified oligomeric silsesquioxane solution;

[0060] 3) The initiator-modified oligomeric silsesquioxane solution obtained in step 2) is dropped into water for precipitation, and the precipitate is collected and dried to obtain the initiator-modified oligomeric silsesquioxane.

Embodiment 2

[0062] Modification of oligosilsesquioxane:

[0063] 1) Under a nitrogen atmosphere, put 50 g of caprolactam and 1.08 g of BTDA in a three-necked flask and melt at 90° C.; after they are completely melted, add dropwise an acetone solution of 0.48 g of octaaminophenylsilsesquioxane therein. After completion, react at 90°C for 14 hours under a nitrogen atmosphere to obtain an oligomeric silsesquioxane with an anhydride functional group at the end;

[0064] 2) Weighing 0.43 g of aminocaproic acid and adding it to the above-mentioned oligomeric silsesquioxane solution with an anhydride functional group at the end, and reacting at 90° C. for 10 hours under a nitrogen atmosphere to obtain an initiator-modified oligomeric silsesquioxane solution;

[0065] 3) The initiator-modified oligomeric silsesquioxane solution obtained in step 2) is poured into a petri dish, and cooled to obtain an initiator-modified oligomeric silsesquioxane with a content of 5% in the caprolactam monomer. % o...

Embodiment 3

[0067] Modification of oligosilsesquioxane:

[0068] 1) Under a nitrogen atmosphere, put 45g of caprolactam and 3.47g of BTDA in a three-necked flask and melt at 90°C; after they are completely melted, 1.55g of octaaminophenylsilsesquioxane in acetone is added dropwise thereto. After completion, react at 90°C for 24 hours under a nitrogen atmosphere to obtain an oligomeric silsesquioxane with an anhydride functional group at the end;

[0069] 2) Weighing 1.39 g of aminocaproic acid and adding it to the above-mentioned oligomeric silsesquioxane solution with an anhydride functional group at the end, reacting at 90° C. for 24 hours under a nitrogen atmosphere to obtain an initiator-modified oligomeric silsesquioxane solution;

[0070] 3) Pour the initiator-modified oligomeric silsesquioxane solution obtained in step 2) into a petri dish, and cool to obtain the initiator-modified oligomeric silsesquioxane in the caprolactam monomer with a content of 18 % of composite prepolymer ...

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Abstract

The invention discloses a polyamide / oligomeric silsesquioxane nano-hybrid material and a preparation method thereof. The polyamide / oligomeric silsesquioxane nano-hybrid material is in a star-shaped molecular chain structure and has excellent flow properties and good comprehensive properties. In the invention, the problems of incompatibility of flow properties, thermal / mechanical properties and other properties of the existing polyamide are solved, the material and preparation method of the invention can be widely applied to automobiles, electrical equipment, mechanical parts, textile machinery, paper manufacturing machinery and the like, and especially can be applied to the manufacture of large complex thin-walled elements with higher requirements for surface gloss.

Description

technical field [0001] The invention belongs to the technical field of polymer hybrid materials, in particular to a star-shaped high-fluidity polyamide / oligomeric silsesquioxane nano-hybrid material and a preparation method thereof. Background technique [0002] Because polyamide has many excellent properties, it is widely used in automobiles, electrical equipment, mechanical parts, textile and paper machinery, etc. With the precision of auto parts, the high performance of electronic and electrical equipment, and the acceleration of the lightweight of mechanical equipment, after the addition of glass fiber reinforcement to improve the mechanical properties of materials, the requirements for surface gloss and dimensional accuracy of products are gradually increasing. Interested, especially for the production of large components where the surface gloss must be aesthetically pleasing to the design. All of these need to be achieved by improving the fluidity in polyamide process...

Claims

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Application Information

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IPC IPC(8): C08G69/42
Inventor 杨扬王惠陈桥吴刚
Owner TORAY FIBER RES INST(CHINA) CO LTD
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