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Preparation method of long chain terminal hydroxyl-containing silane coupling agent and application thereof

A chain-terminated hydroxysilane coupling agent and technology of silane coupling agent are applied in the field of synthesis and application research of organosilicon functional compound intermediates, which can solve the problem of small shear force of water flow, removal of fouling organisms, and difficulty in exerting antifouling effect. and other problems, to achieve the effect of easy reaction process and solving adhesion

Active Publication Date: 2015-09-09
MARINE CHEM RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the use of fouling-releasing antifouling coatings is limited by certain conditions. When the ship is in static or low-speed service, the shearing force of the water flow is too small to remove the fouling organisms, making it difficult to exert a good antifouling effect. Pollution effect, which limits its application

Method used

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  • Preparation method of long chain terminal hydroxyl-containing silane coupling agent and application thereof
  • Preparation method of long chain terminal hydroxyl-containing silane coupling agent and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment 1: in the there-necked flask of 500ml that stirrer, condenser, thermometer are housed, add the mixed solvent of 120g xylene / n-butanol (the mass ratio of xylene and n-butanol is 1:1), and add 25g of polyethylene glycol acrylate and 30g of γ-(methacryloyloxy)propyltrimethoxysilane, blow nitrogen into the reaction system, and stir to mix the reaction monomers evenly, raise the temperature to 115°C, and react within 2 hours After adding 2g of tert-butyl peroxy-2-ethylhexanoate dropwise to the system, keep the temperature for 0.5h, and continue to add 0.5g of tert-butyl peroxy-2-ethylhexanoate and 10g of xylene / Mixed solvent of n-butanol (mass ratio of xylene to n-butanol is 1:1), keep warm for 0.5h, cool down and discharge to obtain the crude product, carry out vacuum distillation on the crude product to remove the low boiling point fraction, obtain colorless and transparent liquid product.

Embodiment 2

[0016] Embodiment 2: in the there-necked flask of 500ml that stirrer, condenser, thermometer are housed, add the mixed solvent of 110g toluene / n-butanol (the mass ratio of toluene and n-butanol is 1:1), and add 28g poly Ethylene glycol methacrylate and 30g γ-(methacryloyloxy)propyltrimethoxysilane, blow nitrogen into the reaction system, and stir to mix the reaction monomers evenly, raise the temperature to 110°C, and react within 2h Add 2g of tert-butyl peroxy-2-ethylhexanoate dropwise to the system, keep the temperature for 0.5h, and continue to add 0.5g of tert-butyl peroxy-2-ethylhexanoate and 10g of toluene / normal Mixed solvent of butanol (mass ratio of toluene to n-butanol is 1:1), keep warm for 0.5h, cool down and discharge the material to obtain the crude product, carry out vacuum distillation on the crude product to remove the low boiling point fraction, and obtain a colorless transparent liquid product .

Embodiment 3

[0017] Embodiment 3: in the there-necked flask of 500ml that stirrer, condenser, thermometer are housed, add the mixed solvent of 120g xylene / n-butanol (the mass ratio of xylene and n-butanol is 1:1), and add 20g of polyethylene glycol acrylate and 25g of vinyl tris(β-methoxyethoxy)silane, pass nitrogen gas into the reaction system, and stir to make the reaction monomers mix evenly, heat up to 115°C, and react within 2h Add 1.8g of tert-butyl peroxy-2-ethylhexanoate dropwise to the system, keep it warm for 0.5h, continue to add 0.5g of tert-butyl peroxy-2-ethylhexanoate and 8g of xylene dropwise within 0.5h / n-butanol mixed solvent (the mass ratio of xylene to n-butanol is 1:1), heat preservation for 0.5h, cool down and discharge, obtain the crude product, carry out vacuum distillation on the crude product to remove the low boiling point fraction, obtain light yellow Clear liquid product.

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Abstract

The invention relates to a preparation method of a long chain terminal hydroxyl-containing silane coupling agent and an application thereof, which are particularly applied to surface modification of fouling release type antifouling coatings. The invention belongs to the fields of synthesis and application research of organic silicon functional compound intermediates. According to the invention, long chain terminal hydroxyl-containing acrylic ester and a double bond-containing silane coupling agent are subjected to radical polymerization in a reaction system; the reaction process is easy to control; the long chain terminal hydroxyl-containing structure can be grafted to the fouling release type antifouling coating; and the chain segment extends towards the surface of seawater and locks water by hydrogen bonds to form a hydrated layer to puzzle marine organisms, so that the coating is protected from being adhered. The long chain terminal hydroxyl-containing silane coupling agent is non-toxic to target organisms and non-target organisms and can effectively solve the problem that the marine fouling organisms are adhered to static marine facilities or ships which ship at a low speed.

Description

technical field [0001] The invention relates to a preparation method and application of a silane coupling agent containing a long-chain terminal hydroxyl group, especially for surface modification of fouling release type antifouling coatings. It belongs to the field of synthesis and application research of organosilicon functional compound intermediates. Background technique [0002] Marine fouling organisms are special ecological communities that grow on the bottom of ships, underwater pipelines, oil platforms, fishing nets and other marine facilities. Their metabolites will corrode equipment, shorten the life of the hull, increase ship resistance and energy consumption, and harm Aquaculture has brought great harm to people's production and life. Among the many methods of preventing and removing fouling marine organisms, coating antifouling paint is the most economical and effective antifouling method. Traditional antifouling coatings are mainly organotin and cuprous oxid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F7/18C09D5/16
Inventor 丛巍巍王科于雪艳张华庆肖玲桂泰江
Owner MARINE CHEM RES INST CO LTD
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