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A kind of low surface energy material with micro-nano groove structure and preparation method thereof

A low surface energy, micro-nano technology, used in anti-corrosion coatings, biocide-containing paints, anti-fouling/underwater coatings, etc., can solve the problems of expensive organic fluorine resins, poor salt resistance, and long curing time, Achieve the effect of increasing micro-roughness, improving anti-corrosion performance and high adhesion strength

Active Publication Date: 2020-05-08
HEILONGJIANG HEIKE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the technical problems of poor adhesion between the existing silicone resin low surface energy material and the substrate, poor salt resistance, long curing time, high price and complicated process of organic fluorine resin low surface energy materials, and provides A kind of low surface energy material with micro-nano groove structure and preparation method thereof

Method used

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  • A kind of low surface energy material with micro-nano groove structure and preparation method thereof
  • A kind of low surface energy material with micro-nano groove structure and preparation method thereof
  • A kind of low surface energy material with micro-nano groove structure and preparation method thereof

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Embodiment 1

[0032] Embodiment 1: The preparation method of the low surface energy material with the micro-nano groove structure of the present embodiment is carried out according to the following steps:

[0033] 1. Preparation of epoxidized hydroxyl-terminated polybutadiene polyurethane:

[0034] a. Raw material preparation: Weigh 56.8% of hydroxyl-terminated polybutadiene HTPB, 24.9% of tetramethylxylylene diisocyanate TMXDI, and 18.3% of epoxy resin E-51 by mass percentage; wherein hydroxyl-terminated polybutadiene Diene HTPB has a hydroxyl value of 1.36 and a low-viscosity liquid rubber with a number average molecular weight of 1700;

[0035] b. Synthesis of hydroxyl-terminated polybutadiene polyurethane: Add TMXDI into a three-necked flask, stir and heat up to 60°C, add pre-vacuumized to no-foam hydroxyl-terminated polybutadiene into the three-necked flask, keep stirring for 40 minutes, and heat up React at 100°C for 3 hours, take samples to measure -NCO content, when -NCO% = 7.0%, c...

Embodiment 2

[0048] Embodiment 2: The preparation method of the low surface energy material with the micro-nano groove structure of the present embodiment is carried out according to the following steps:

[0049] 1. Preparation of epoxidized hydroxyl-terminated polybutadiene polyurethane:

[0050] a. Raw material preparation: Weigh 56.8% of hydroxyl-terminated polybutadiene HTPB, 24.9% of tetramethylxylylene diisocyanate TMXDI, and 18.3% of epoxy resin E-51 by mass percentage; wherein hydroxyl-terminated polybutadiene Diene HTPB is a low-viscosity liquid rubber with a hydroxyl value of 1.05 and a number average molecular weight of 2300;

[0051] b. Synthesis of hydroxyl-terminated polybutadiene-type polyurethane: Add TMXDI into a three-necked flask, stir and heat up to 60°C, add pre-vacuumized to no-foam hydroxyl-terminated polybutadiene into the three-necked flask, keep stirring for 40min, and heat up React at 100°C for 3 hours, take a sample to measure the -NCO content, cool down to roo...

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Abstract

The invention provides a low-surface-energy material with a micro-nano groove structure as well as a preparation method thereof, and relates to a low-surface-energy material and a preparation method thereof. The technical problems that the existing low-surface-energy material of organic silicon resin has poor adhesive force with a matrix, low solvent resistance and long curing time as well as thelow-surface-energy material of organic fluorine resin is expensive in material and complex in process are solved. The material consists of a component A and a component B which are independently packaged, the component A is a mixture of epoxidized hydroxy-terminated polybutadiene type polyurethane and basalt scale fiber treated by a silane coupling agent, and the component B is a curing agent. Thepreparation method comprises the following steps: 1, preparing epoxidized hydroxy-terminated polybutadiene type polyurethane; 2, treating the basalt scale fiber by the silane coupling agent; and 3, defoaming the epoxidized hydroxy-terminated polybutadiene type polyurethane, adding the basalt scale fiber treated by the silane coupling agent, mixing uniformly to form the component A and independently packaging the component B. The static water contact angle of the material can reach to above 110 degrees and the low-surface-energy material can be applied in the field of corrosion prevention.

Description

technical field [0001] The invention relates to a low surface energy material and a preparation method thereof, belonging to the technical field of functional materials. Background technique [0002] The marine environment is a very harsh and corrosive environment. Ships have been in such a marine environment for a long time, and the corrosion is extremely serious, and materials have always been the most important means of anti-fouling and anti-corrosion. Marine anticorrosion and antifouling materials form the basis of marine materials. Hull materials are mainly subject to chemical corrosion, electrochemical corrosion, cavitation corrosion and marine biological corrosion in the marine environment, which seriously affects the life and performance of the ship. Low surface energy materials can reduce the adhesion of marine organisms and can improve anti-corrosion capabilities. There are two types of existing low surface energy materials: silicone resin and organic fluorine re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/14C09D5/08C09D5/16C09D7/62C08G18/32C08G18/65C08G18/69C08G18/58C08G18/10
CPCC08G18/10C08G18/3814C08G18/6594C08G18/698C08K7/10C08K9/06C09D5/08C09D5/1662C09D5/1687C09D175/14C08G18/58
Inventor 崔向红张晓臣刘晓东苏桂明
Owner HEILONGJIANG HEIKE TECH CO LTD
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