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Functional silane macromolecular polymer and preparation method thereof, and additive and application thereof

A technology of macromolecules and polymers, applied in the directions of additives, organic silicon compounds, chemical instruments and methods, etc., can solve the problem that the hardness of the coating cannot meet the demand, and achieve the improvement of hardness and salt spray resistance, etc., products are easy to obtain, high yield effect

Pending Publication Date: 2021-12-10
GBXF SILICONES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a functional silane macromolecular polymer, preparation method, additive and application to solve the problem that the hardness of the coating cannot meet the demand

Method used

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  • Functional silane macromolecular polymer and preparation method thereof, and additive and application thereof
  • Functional silane macromolecular polymer and preparation method thereof, and additive and application thereof
  • Functional silane macromolecular polymer and preparation method thereof, and additive and application thereof

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preparation example Construction

[0027] The method of preparation of the silane macromonomer polymer comprises the steps of:

[0028] The silane coupling agent was mixed with a solvent, wherein the silane coupling agent may be selected methacryloxypropyl trimethoxy silane, methacryloxy propyl methyl dimethoxy silane, methyl acryloxy propyl triethoxy silane, methacryloxy propyl methyl diethoxy silane, methacryloxy propyl triisopropoxysilane, 3 (2,3- oxo propoxy) propyl trimethoxysilane, 3 (2,3-epoxy propoxy) propyl triethoxysilane, 3 (2,3-epoxy propoxy) propyl methyl dimethoxysilane , 3 (2,3-epoxy propoxy) propyl methyl diethoxy silane, vinyltriethoxysilane, vinyltrimethoxysilane, vinyltris (methoxyethoxy) silane one or more; silane coupling agent and water molar ratio is preferably 1: 3-1: 4, a silane coupling agent and a solvent mass ratio is preferably 1: 2-1: 3;

[0029] After mixing stir polymerization inhibitor, the polymerization inhibitor mixed esters should be used, and a silane coupling agent added in an...

Embodiment 1

[0034] To 1000ml three-necked flask equipped with a stirrer was charged with 3-methacryloxypropyl trimethoxysilane and 248g 496g of methanol was added 0.15g polymerization inhibitor, stir, added dropwise 100g methanol / water / hydrochloric acid solution the control dropping of 1d / s; the addition was complete the reaction at room temperature 8h, after the reaction under reduced pressure to collect 550g methanol, 200g of toluene was added at 100 deg.] C for 3h, with tetramethylammonium hydroxide solution, the solution was adjusted to PH 7, the solvent was evaporated under reduced pressure to 306g, the silane macromonomer polymer was filtered to give 180g; one of the reaction equation of the preparation process is as follows:

[0035]

[0036] The silane macromonomer polymer product a colorless transparent viscous liquid, yield = actual product quality by / * 100% theoretical product mass calculated yield of 95% and a viscosity of 1000mm 2 / S, average molecular weight of 1860. ...

Embodiment 2

[0039] To 1000ml three-necked flask equipped with a stirrer was charged with 220g of 3 (2,3-epoxy propoxy) propyl methyl dimethoxy silane and 475g of methanol was added 0.15g polymerization inhibitor, stir, a solution of 100g methanol / water / hydrochloric acid solution, the control of dropping 1d / s; the addition was complete the reaction at room temperature, 6h, after the reaction under reduced pressure to collect 520g methanol, 200g of isopropanol was added at 80 deg.] C the reaction was refluxed for 2.5h, treated with potassium hydroxide the solution was adjusted to PH 6, 295 g of solvent was distilled off under reduced pressure, filtered to give 167 g of a silane macromonomer polymer; one of the reaction equation of the preparation process is as follows:

[0040]

[0041] The silane macromonomer polymer product a colorless transparent viscous liquid, yield = actual product quality by / * 100% theoretical product mass calculated yield of 92%, a viscosity of 500mm 2 / S, av...

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Abstract

The invention discloses a functional silane macromolecular polymer and a preparation method thereof, and an additive and application thereof, belonging to the technical field of organic synthesis. The invention aims to solve the problem that the hardness of a coating cannot meet requirements. The preparation method of the functional silane macromolecular polymer comprises the following steps: mixing a silane coupling agent and a solvent in proportion, adding a polymerization inhibitor, carrying out uniform stirring, and dropwise adding a methanol-water-hydrochloric acid solution; and conducting reacting at normal temperature for a period of time after dropwise adding, collecting alcohol and the solvent under reduced pressure, adding a solvent, carrying out heating and reacting for a period of time, regulating a pH value to 7 by using a pH regulator, removing the solvent by reduced pressure distillation, and conducting filtering to obtain the silane macromolecular polymer. The method is simple in process, low in production cost, free of pollution, free of high-temperature vacuum purification and high in product yield, can be applied to a coating and release agent system to replace resin, and further improves the hardness, salt spray resistance and the like of a composite material.

Description

Technical field [0001] The present invention relates to the field of organic synthesis techniques, in particular to a silane functional polymer molecules, preparation, and application of the additive. Background technique [0002] A silane coupling agent, the main product is a single structure, purity above 97%, is widely used in glass fiber, solar photovoltaic, sealants, textile and paint industries, to provide excellent organic binder and an inorganic material adhesion and flexibility, however, a silane coupling agent for the hardness of the coating hardly any contribution, which led to bottlenecks coating related industries. [0003] Patent Publication No. invention is CN109575714B, entitled "Long lasting producing a hydrophilic anti-fog coating which is based on modified silane coupling agent," is disclosed an isocyanate-silane coupling agent of polyvinyl alcohol chemical modification to improve the hardness of the coating, while introducing a hydrophilic surfactant as a modi...

Claims

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Application Information

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IPC IPC(8): C08G77/20C07F7/08C09D163/00C09D7/65C09D7/63C10M155/02C10N40/36
CPCC08G77/20C10M155/02C07F7/0838C07F7/0874C09D163/00C09D7/65C09D7/63C10M2229/046C10M2229/047C10N2020/02C10N2020/04C10N2040/36C08L83/06C08K5/5435C08L83/04
Inventor 孙佳丽邱小魁张志贤杨琴程驰
Owner GBXF SILICONES CO LTD
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