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A kind of organosilicon leveling agent and preparation method thereof

A technology of silicone leveling agent and leveling agent, which can be used in inks, household appliances, applications, etc., and can solve problems such as poor thermal stability and easy foam stabilization.

Active Publication Date: 2017-02-01
GUANGZHOU SILOK POLYMER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially polyether-modified polysiloxane, which has poor thermal stability and is easy to stabilize foam

Method used

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  • A kind of organosilicon leveling agent and preparation method thereof
  • A kind of organosilicon leveling agent and preparation method thereof
  • A kind of organosilicon leveling agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Add 180g of xylene and 30g of side chain hydrogen-containing silicone oil A into a three-necked flask, and react with 70g of allyl polyether B at 60°C for 3 hours to prepare polyether polyester modified organosiloxane , the basic reaction is complete. A transparent light yellow solution was obtained, the molecular weight was measured by GPC, Mn=36912, PDI=1.21.

[0024]

example 2

[0026] Add 350g of xylene and 60g of side-chain hydrogen-containing silicone oil A into a three-necked flask, and react with 160g of allyl polyether B at 60°C for 1.5 hours to prepare polyether polyester modified organosiloxane , the basic reaction is complete. A transparent light yellow solution was obtained, the molecular weight was measured by GPC, Mn=8959, PDI=1.23.

[0027]

example 3

[0029] Add 200g of butyl acetate and 200g of side chain hydrogen-containing silicone oil A into a three-necked flask, and react with 500g of allyl polyether B at 60°C for 2.5 hours to prepare polyether polyester modified organosilicone Alkanes, the basic reaction is complete. A transparent light yellow solution was obtained, the GPC test molecular weight Mn=57000, PDI=1.26.

[0030]

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PUM

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Abstract

The invention relates to the field of high molecular materials and in particular relates to an organic silicon leveling agent and a preparation method thereof. The organic silicon leveling agent is polyether-polyester modified organosiloxane and has a structure as shown in the specification, wherein R=H or R=CH3; or the organic silicon leveling agent has another structure as shown in the specification, wherein R1=-CH3, C2H5 or C3H7; x is 8-14; y is 3-8; and m is 20-200, n is 30-100, and the sum of n and m is 50-250. The organic silicon leveling agent belongs to polyether-polyester modified organosiloxane and has favorable leveling property and stability. The invention also provides the preparation method of the organic silicon leveling agent, which is convenient for industrial production.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to an organic silicon leveling agent and a preparation method thereof. [0002] technical background [0003] Leveling agent is a commonly used coating additive, which can promote the formation of a flat, smooth and uniform coating film during the drying and film forming process of the coating. A class of substances that can effectively reduce the surface tension of coating fluids and improve their leveling and uniformity. It can improve the permeability of the coating solution, reduce the possibility of spots and marks when brushing, increase the coverage, and make the film formation uniform and natural. According to the different chemical structures, there are three main categories of this type of leveling agent: acrylic, silicone and fluorocarbon. [0004] Polyether polyester modified organosiloxane belongs to comb structure organopolysiloxane. Its compatibility is adjusted by ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D7/06C09D5/03C09D11/03C08G81/00C09D7/47
Inventor 孙东明高鹏东徐运欢
Owner GUANGZHOU SILOK POLYMER