Unlock instant, AI-driven research and patent intelligence for your innovation.

Silicone interpenetrating network polymer and preparation method thereof

A technology of interpenetrating network and interpenetrating network structure, applied in the field of organosilicon interpenetrating network polymer and its preparation, can solve problems such as loss of PDMS, and achieve the effect of excellent mechanical properties

Active Publication Date: 2020-07-28
WUHAN UNIV +1
View PDF25 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In some methods, silicone and other polymers are used to form an IPN structure, such as amino polysiloxane (AG) / polyurethane / epoxy resin ternary interpenetrating network polymer, and a ladder-shaped silsesquioxane (LDS) / polycarbonate is prepared. Silane (PCS) IPN, etc., but although this type of IPN improves the mechanical properties of the system, it also loses the characteristics of PDMS, such as excellent heat resistance, etc.

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

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0039] The preparation method of the amine group-containing silicone oil in the embodiment of the present invention is as follows:

[0040] (1) Add 55.3g of aminopropyltriethoxysilane, 34g of methyltrimethoxysilane, 18.5g of trimethoxychlorosilane and 100g of isopropanol into a three-necked flask with a stirring device, and adjust the pH value with hydrochloric acid to about 1 to 2;

[0041] (2) 49.5g of deionized water was slowly added dropwise with a constant pressure dropping funnel at room temperature, and the temperature was raised to 75°C for 3 hours after the dropwise addition; then the resulting alcohols were distilled off at 85°C-90°C under normal pressure; then KOH was used Adjust the pH of the solid to about 9;

[0042] (3) the mixture obtained in step (2) is placed in a dialysis bag, and the dialysis bag is placed in deionized water for dialysis for 3 days;

[0043] (4) Take out the retentate in the dialysis bag and place it in a three-necked bottle, add 27.4g HM...

Embodiment

[0051] This embodiment is an organosilicon interpenetrating network polymer whose structure is a polymer interpenetrating network formed by a first crosslinking system and a second crosslinking system.

[0052] Wherein, the first cross-linking system is formed by cross-linking of amine group-containing silicone oil and epoxy group-containing silicone oil, and the mass ratio of the amine group-containing silicone oil to the epoxy group-containing silicone oil is 3:1; The second cross-linking system is formed by cross-linking of vinyl-containing silicone oil; the mass ratio of the first cross-linking system and the second cross-linking system is 0.2:1.

[0053] The preparation method of above-mentioned organosilicon interpenetrating network polymer is as follows:

[0054] The amine group-containing silicone oil and the epoxy group-containing silicone oil were added to a three-necked flask according to a mass ratio of 3:1, an appropriate amount of toluene was added as a solvent, ...

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
epoxy valueaaaaaaaaaa
viscosityaaaaaaaaaa
epoxy valueaaaaaaaaaa
Login to View More

Abstract

The invention relates to an organic silicon interpenetrating network polymer and a preparation method thereof. The structure of the organic silicon interpenetrating network polymer comprises a polymerinterpenetrating network which is formed by a first cross-linked system and a second cross-linked system, wherein the first cross-linked system is formed by cross-linking amino group containing silicon oil with epoxy group containing silicon oil; the second cross-linked system is formed by cross-linking vinyl group containing silicon oil. The organic silicon interpenetrating network polymer can be used for keeping the property of organic silicon while being capable of improving the mechanical performance of the systems.

Description

technical field [0001] The invention relates to organosilicon materials, in particular to an organosilicon interpenetrating network polymer and a preparation method thereof. Background technique [0002] Silicone rubber is one of the materials with excellent structural stability and wide application. Due to the weak intermolecular force of pure silicone rubber, the mechanical properties are poor. In order to improve the properties and properties of silicone rubber to an applicable level, it is usually modified, such as adding inorganic fillers, polymer blending, etc. However, due to the extremely low solubility parameters and chain flexibility of polydimethylsiloxane (PDMS), it is difficult to be compatible with other polymer chains. Therefore, there are still many limitations in terms of surface properties, transparency, etc., so there are many studies on the modification of silicone rubber. [0003] Interpenetrating Polymer Network (IPN for short) is a network structure...

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 Patents(China)
IPC IPC(8): C08L83/07C08L83/08C08L83/04
CPCC08L83/04C08L2205/025C08L2205/03C08L2205/04C08L83/08
Inventor 黄荣华谢洋张艳李文杨洪
Owner WUHAN UNIV