A long-lasting hydrophilic material

A hydrophilic material and long-acting technology, which is applied in the composition and preparation of long-acting hydrophilic polymer materials, can solve the problems of material optical transparency and imaging ability damage, variegated colors, lack of adhesion, etc., and achieve excellent surface Smoothness, high optical transmittance, effect of improving mechanical strength

Active Publication Date: 2021-06-08
武汉铌欧能源材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The most typical example is polyvinyl alcohol. Although it has excellent hydrophilic properties, it is completely lacking in commonly used substrate films, such as polyester films, polycarbonate films, polyacrylate films, cellulose films, etc. required adhesion
[0020] Other difficulties in preparing hydrophilic coatings using purely hydrophilic or / water-soluble molecules include: The surface formed by using purely hydrophilic or / water-soluble molecules to prepare hydrophilic coatings is often due to excessive water absorption, making the surface appear dull. Oily, causing the surface to be uneven and not smooth. When exposed to light, it will appear mottled and colorful, which will damage the optical transparency and imaging ability of the material.

Method used

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  • A long-lasting hydrophilic material
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  • A long-lasting hydrophilic material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] Example 1 Synthesis and Preparation of Two Functional Groups, Polymerizable and / or Crosslinkable Polyurethane with Hydrophilic Properties

[0071] The first step: the monoadduct (TDI-HEA) of toluene diisocyanate and 2-hydroxyethyl acrylate (TDI-HEA), the intermediate, its synthesis process is as follows:

[0072] 1) In a clean 100mL three-necked flask, weigh 40.00g (0.2297mol) toluene diisocyanate (TDI) and 0.0669g (0.100wt%) dibutyltin dilaurate (DBTDL) successively, and then rapidly add A thermometer, a mechanical stirrer, and a 50mL constant-pressure dropping funnel connected to a drying tube were respectively installed on each bottle mouth; in addition, 0.1004g (0.150wt%) p-methoxyphenol (MEHQ) was weighed successively, 0.06694g (0.100wt%) wt%) of 2,6-di-tert-butyl-p-cresol (BHT) and 26.67g (0.2297mol) of hydroxyethyl acrylate (HEA), mixed in a beaker, fully stirred with a glass rod until MEHQ and BHT are completely Dissolve to obtain a colorless or light yellow re...

Embodiment 2

[0079] Example 2 Synthesis and preparation of two functional groups, polymerizable and / or crosslinkable polyurethane with hydrophilic properties-transforming the molecular weight of the main chain

[0080] The same steps as in Example 1 were adopted, but in the second step, PEG1000 was replaced with polyethylene glycol 600 (PEG600), and fed according to Table 1, to obtain polyethylene glycol 600 diurethane acrylate, marked as PEG600DUA.

Embodiment 3

[0081] Example 3 Synthesis and Preparation of Two Functional Groups, Polymerizable and / or Crosslinkable Polyurethane with Hydrophilic Properties-Transformation of Main Chain Molecular Weight

[0082] The exact same steps as in Example 1 were adopted, but in the second step, PEG1000 was replaced with polyethylene glycol 2000 (PEG2000), and fed according to Table 1, to obtain polyethylene glycol 2000 diurethane acrylate, marked as PEG2000DUA.

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Abstract

The invention discloses a long-acting hydrophilic material, which is characterized in that it mainly includes the following composition: a hydrophilic resin with a polymerizable and / or crosslinkable active group, and a polymerizable and / or crosslinkable active group Hydrophilic monomers, hydrophobic resins with the same type of polymerizable and / or crosslinkable active groups as the aforementioned hydrophilic resins, hydrophobic monomers with polymerizable and / or crosslinkable active groups, ionic surface Active agent, curing auxiliary agent and / or additive; after the components are mixed uniformly, the hydrophilic component and the hydrophobic component are polymerized and / or crosslinked by chemical bonds through thermochemical reaction or photochemical reaction, and ionic surfactant is included Composite as a whole, become the long-acting hydrophilic material of the present invention. The resulting long-lasting hydrophilic material product has high hydrophilic performance, long-term effectiveness, high anti-fog performance, excellent scrub resistance performance, good adhesion to the substrate, high optical transparency and high thermal stability.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to the composition of a long-acting hydrophilic polymer material and a preparation method thereof. Background technique [0002] The hydrophilicity of a material refers to the physical property that the hydrophilic molecules that make up the material can form short-term links with water molecules through hydrogen bonds. Due to the principle of thermodynamics, this molecule can not only dissolve in water, but also in other polar solvents. A hydrophilic molecule, or a hydrophilic portion of a molecule, is one that has the ability to polarize to the point where it can form hydrogen bonds and make it more soluble in water than oil or other hydrophobic molecules . [0003] The hydrophilic properties of materials have broad application prospects in human life, such as: [0004] 1. Anti-fog materials: Glasses, optical lenses, instrument mirrors, windshields, protective glass...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/76C08G18/67C08G18/48C08G18/12
CPCC08G18/12C08G18/4833C08G18/672C08G18/7614C08G18/48
Inventor 王执锴王思哲张登
Owner 武汉铌欧能源材料有限公司
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