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Anisotropic self-reinforced organic silicon composite material and preparation method thereof

An anisotropic, composite material technology, applied in the field of anisotropic self-reinforced organic silica gel composite material and its preparation, can solve the problems of increasing process difficulty and complexity, increasing preparation cost, material loss and waste, etc., and achieving huge applications Value and market potential, good biocompatibility, the effect of meeting the needs of use

Active Publication Date: 2021-05-14
NANJING UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, this increases the difficulty and complexity of the process, and on the other hand, it will cause material loss and waste, thereby increasing the preparation cost

Method used

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  • Anisotropic self-reinforced organic silicon composite material and preparation method thereof
  • Anisotropic self-reinforced organic silicon composite material and preparation method thereof
  • Anisotropic self-reinforced organic silicon composite material and preparation method thereof

Examples

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Effect test

Embodiment 1

[0031] An anisotropic self-reinforced organic silica gel composite material, which includes the following raw materials: calculated by mass percentage, containing organic silicon polymer monomer (83.4%), organic silicon crosslinking agent (8.3%), liquid filling substance (8.3%) %).

[0032] The silicone polymer monomer is Sylgard184 base, and the silicone crosslinking agent is Sylgard184 linker.

[0033] The liquid filling substance is glycerol.

[0034] A method for preparing an anisotropic self-reinforced organic silica gel composite material, comprising the following steps:

[0035] (1) After fully mixing the silicone polymer monomer (83.4wt%) containing the Pt catalyst, the silicone crosslinking agent (8.3wt%), and the liquid filling material (8.3wt%), react at 100°C for 0.17 h obtains the pre-polymerized material;

[0036] (2) Stretch the pre-polymerized material by 100%, and then carry out a further 2h polymerization reaction at 100° C. to obtain an anisotropic self-r...

Embodiment 2

[0038] An anisotropic self-reinforced organic silica gel composite material, which includes the following raw materials: calculated by mass percentage, containing organic silicon polymer monomer (84.5%), organic silicon crosslinking agent (7%), liquid filling substance (8.5%) %).

[0039] The silicone polymer monomer is Sylgard184 base (Dow Corning), and the silicone crosslinker is Sylgard184 linker (Dow Corning).

[0040] The liquid filling substance is glycerol.

[0041] A method for preparing an anisotropic self-reinforced organic silica gel composite material, comprising the following steps:

[0042] (1) A Pt catalyst containing organosilicon polymer monomer (84.5wt%), organosilicon crosslinking agent (7wt%), and liquid filling material (8.5wt%). After fully mixing, react at 25°C for 24 hours to obtain a pre-polymerized material;

[0043](2) Stretching the pre-polymerized material by 100%, and then further polymerizing at 100° C. for 2 hours to obtain an anisotropic sel...

Embodiment 3

[0045] An anisotropic self-reinforced organic silica gel composite material, which includes the following raw materials: calculated by mass percentage, containing organic silicon polymer monomer (86%), organic silicon crosslinking agent (5.4%), liquid filling substance (8.6%) %).

[0046] The silicone polymer monomer is Sylgard184 base (Dow Corning), and the silicone crosslinker is Sylgard184 linker (Dow Corning).

[0047] The liquid filling substance is glycerol.

[0048] A method for preparing an anisotropic self-reinforced organic silica gel composite material, comprising the following steps:

[0049] (1) Fully stir and mix the silicone polymer monomer (86wt%), silicone crosslinking agent (5.4wt%), and liquid filler (8.6wt%), and then react at 100°C for 0.18h to obtain a prepolymerized material ;

[0050] (2) Stretching the pre-polymerized material by 100%, and then further polymerizing at 100° C. for 2 hours to obtain an anisotropic self-reinforced organic silica gel co...

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Abstract

The invention discloses an anisotropic self-reinforced organic silicon composite material and a preparation method thereof. The composite material is characterized by comprising the following raw material components in percentage by mass: 71-86% of organic silicon polymer monomer, 5-9% of organic silicon cross-linking agent and 8-22% of liquid filling substance. The method comprises the following steps: uniformly mixing a filling liquid, the organic silicon polymer monomer and the cross-linking agent under mechanical stirring, and dispersing the liquid in the organosilicon monomer in a form of liquid drops to form an emulsion; then, performing primary polymerization of organic silicon macromolecules under heating or room temperature, and fixing the spherical liquid drops in the organic silicon network; and finally, stretching the obtained composite film to a certain proportion under the action of external force, and simultaneously performing heating and polymerizing to realize further curing so as to obtain the anisotropic self-reinforced polymer material. The preparation method is simple, easy to operate and high in practicability, the self-reinforced polymer material with anisotropy and mechanical force response can be obtained at the same time, and the self-reinforced polymer material has wide application prospects.

Description

Technical field: [0001] The invention relates to the technical field of self-reinforced polymer materials, in particular to an anisotropic self-reinforced organic silica gel composite material and a preparation method thereof. Background technique: [0002] There are many biological materials with anisotropic mechanical properties in nature, such as reed leaves, bones, muscle tissues and other structures. When these materials are disturbed by the outside world, on the one hand, their mechanical properties in a specific direction will automatically adjust their applicability according to the change of external pressure to protect the integrity of their own structure; on the other hand, due to the structure of biological materials It also automatically adjusts in different directions according to the external force to realize the anisotropy of mechanical properties, so as to adapt to various functional requirements in life. As an elastomer material with excellent biocompatibi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/07C08L83/05C08K5/053C08L91/00
CPCC08L83/04C08L2205/025C08L2205/03C08L2205/035C08K5/053C08L91/00
Inventor 赵怀霞沈晓冬倪海松李博雅蔡高沙文婧
Owner NANJING UNIV OF TECH
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