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Organic silicon resin containing amide structure as well as preparation method and application of organic silicon resin

A silicone and resin technology, applied in the field of silicone resin and its preparation, can solve problems such as limited application and high cost, and achieve the effects of low price, improved mechanical strength, high affinity and adsorption capacity

Pending Publication Date: 2021-05-28
GUANGDONG BIOMAX SIANDF NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the synthesis of amides often requires highly active substrates in the form of acid chlorides, acid anhydrides, etc., or with the help of various condensation agents and catalysts, such as carbodiimides, onium salts, and organic phosphoniums, etc., and the high cost of these materials limits Its application in the industrial field

Method used

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  • Organic silicon resin containing amide structure as well as preparation method and application of organic silicon resin
  • Organic silicon resin containing amide structure as well as preparation method and application of organic silicon resin
  • Organic silicon resin containing amide structure as well as preparation method and application of organic silicon resin

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Effect test

Embodiment 1

[0049] A silicone resin containing an amide structure in this embodiment comprises the following components in parts by mass:

[0050] Tetramethyl silicate 4.50g;

[0051] 3-aminopropyl tri(ethoxy)silane 8.04g;

[0052] Anhydride 1.82g;

[0053] The acid anhydride is succinic anhydride.

[0054] The preparation method of the silicone resin containing amide structure comprises the following steps:

[0055] S1, preparing the mixed solution, the specific steps are:

[0056] 1) Mix 4.02 g of 3-aminopropyltri(ethoxy)silane and 1.82 g of succinic anhydride, heat and stir at 70°C for 40 minutes, and obtain an intermediate product after the solid anhydride is completely dissolved;

[0057] 2) Dissolve 4.02 g of 3-aminopropyltri(ethoxy)silane and 4.50 g of tetramethyl silicate in 7.00 g of absolute ethanol, and then add them to the intermediate product to obtain a mixed solution;

[0058] S2, heating the mixed solution at 100° C. for 4 hours to obtain a silicone resin product.

...

Embodiment 2

[0068] A silicone resin containing an amide structure in this embodiment comprises the following components in parts by mass:

[0069] Tetramethyl silicate 4.28g;

[0070] 3-aminopropyl tri(ethoxy)silane 6.22g;

[0071] Carboxylic acid 1.68g;

[0072] The carboxylic acid is glacial acetic acid.

[0073] The preparation method of the silicone resin containing amide structure comprises the following steps:

[0074] S1, 6.22g of 3-aminopropyltri(ethoxy)silane, 4.28g of tetramethyl silicate and 1.68g of glacial acetic acid were mixed and dissolved to obtain a mixed solution;

[0075] S2, heating the mixed solution at 90° C. for 3 hours to obtain a silicone resin product.

[0076] This embodiment does not use other solvents, and the reactants are mixed and reacted directly, and the amide product can still be obtained; therefore, this embodiment does not add other solvents, and the production process is green and environmentally friendly.

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Abstract

The invention discloses organic silicon resin containing an amide structure as well as a preparation method and application thereof, and relates to the field of high polymer materials. Comprising the following steps: S1, mixing 3-aminopropyl tri (ethyoxyl) silane, tetramethyl silicate and an acylating agent to obtain a mixed solution; the acylating agent is carboxylic acid or anhydride, and when the acylating agent is carboxylic acid, the molar ratio of 3-aminopropyl tri (ethyoxyl) silane to tetramethyl silicate to carboxyl of carboxylic acid is 1: (0.5-1.5): (0.9-1.1); when the acylating agent is anhydride, the molar ratio of the 3-aminopropyl tri (ethyoxyl) silane to the tetramethyl silicate to the anhydride is 2: (1-3): (0.9-1.1); s2, heating and reacting the mixed solution to obtain the organic silicon resin. According to the invention, tetramethyl silicate is added, so that the acylating agent reacts with the amino silane coupling agent to directly generate the organic silicon resin containing the amide structure, and the preparation method does not need special equipment and harsh conditions, is simple in process and easy to realize large-scale generation, and has very strong practicability.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a silicone resin containing an amide structure and a preparation method and application thereof. Background technique [0002] Polyamide materials are widely used in many fields due to their superior performance, but they are still easily decomposed by acid and alkali catalysis; fully aromatic polyamides have excellent performance but high cost, while aliphatic and semi-aromatic polyamides are resistant to Poor temperature. Therefore, it is very meaningful to develop a method that can improve the performance of polyamide products, such as modification by silicone coupling agent. [0003] Silicone functional resin is usually made by cohydrolysis and polycondensation of silane coupling agent and silicone monomer. Classical silane coupling agent, expressed as YSiX 3 , where X is a group that can be hydrolyzed to form Si-OH, and can also react with Si-OH on the surface...

Claims

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Application Information

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IPC IPC(8): C08G77/50C08G77/26D06N3/12
CPCC08G77/50C08G77/26D06N3/0034D06N3/128D06N2209/10D06N2209/143
Inventor 黄振宏王大可黄宇斌
Owner GUANGDONG BIOMAX SIANDF NEW MATERIAL CO LTD
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