Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method for antistatic UV (Ultraviolet) coating and film forming method of same

An antistatic, plastic film technology, applied in the direction of polyurea/polyurethane coatings, coatings, etc., can solve the problem that macromolecular antistatic agents are not easy to migrate, affect product appearance and light transmittance, and affect product antistatic performance, etc. Achieve the effect of ensuring visible light transmittance and clarity, improving surface hardness and scratch resistance, and superior antistatic performance

Active Publication Date: 2015-01-07
GUANGZHOU SHENWEI NEW MATERIAL TECH
View PDF4 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, since polythiophene is a high polymer with a relatively large molecular weight, it has poor compatibility with UV resins, resulting in poor stability of the prepared coating and foreign matter points during the coating and curing process. problems such as fogging and fogging, which affect the appearance and light transmittance of the product; at the same time, because the light-cured coating has a denser three-dimensional network structure than the traditional solvent-based coating and water-based coating, the macromolecular antistatic agent is not It is easy to migrate to the surface of the coating and affect the antistatic performance of the product, thus limiting the application of polythiophene in light-curing coatings

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] 1. Preparation of Antistatic UV Curing Coatings

[0038] (1) 25g molecular weight is 35000 polythiophene, 25g molecular weight is 25000 poly(3,4-ethylenedioxythiophene) and 200g propylene glycol methyl ether is put into reactor 1, with high-speed stirring disperser with 200rpm / Stir and disperse at a speed of min for half an hour and mix evenly to obtain a mixed solution A;

[0039] (2) the model that 50g DSM-AGI company produces is the carboxylic acid modified polyurethane acrylic resin (molecular weight is 800, acid value 1mgKOH / g, carboxyl content is 6%) of NeoRad U-42, the pentaerythritol hexaacrylate of 50g , 0.25g of polyether-modified polydimethylsiloxane (BYK3530) and 1g of 2-hydroxy-2-methyl-1-phenyl-1-acetone are put into reaction kettle 2 together, and a high-speed stirring disperser is used to Stir and disperse at a speed of 200rpm / min for 1 hour until the mixture is evenly mixed to obtain the mixed liquid B;

[0040] (3) mix mixture B and mixture A unifor...

Embodiment 2

[0055] 1. Preparation of Antistatic UV Curing Coatings

[0056] (1) 16.7g molecular weight is 55000 polythiophene, 33.3g molecular weight is 28000 poly(3,4-ethylenedioxythiophene) and 200g ethylene glycol ethyl ether is put into reactor 1, with high-speed stirring disperser Stir and disperse at a speed of 200rpm / min for half an hour and mix evenly to obtain mixture A;

[0057] (2) the model that 70g DSM-AGI company produces is the carboxylic acid modified polyurethane acrylic resin (molecular weight is 800, acid value 1mgKOH / g, carboxyl content is 6%) of NeoRad U-42, 30g pentaerythritol hexaacrylate, 0.35g of polyether-modified polydimethylsiloxane (BYK3530) and 0.6g of 2-hydroxyl-2-methyl-1-phenyl-1-acetone are put into reaction kettle 2 together, and a high-speed stirring disperser is used to Stir and disperse at a speed of 200rpm / min for 1 hour until the mixture is evenly mixed to obtain the mixed liquid B;

[0058] (3) mix mixture B and mixture A uniformly to obtain mixt...

Embodiment 3

[0073] 1. Preparation of Antistatic UV Curing Coatings

[0074] (1) Put 50g of polythiophene and its derivatives (12.5g of polythiophene with a molecular weight of 64000 and 37.5g of poly(3,4-ethylenedioxythiophene) with a molecular weight of 35000) and 200g of propylene glycol diethyl ether into the reaction In kettle 1, use a high-speed stirring disperser to stir and disperse at a speed of 200rpm / min for half an hour and mix evenly to obtain mixture A;

[0075] (2) The model produced by 70g DSM-AGI company is the carboxylic acid modified polyurethane acrylic resin (molecular weight is 4400, acid number 8mgKOH / g, carboxyl content is 6%) of NeoRad U-30W of NeoRad U-30W, 30g pentaerythritol hexaacrylate, 0.35 g of polyether-modified polydimethylsiloxane (BYK3530) and 0.6g of 2-hydroxyl-2-methyl-1-phenyl-1-acetone are put into the reactor 2 together, and are mixed with a high-speed stirring disperser at 200rpm Stir and disperse at a speed of 1 / min for 1 hour until the mixture i...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Acid valueaaaaaaaaaa
Acid valueaaaaaaaaaa
Acid valueaaaaaaaaaa
Login to View More

Abstract

The invention relates to a preparation method for an antistatic UV (Ultraviolet) coating and a film forming method of the same, wherein the preparation method for the antistatic UV coating comprises the following steps: firstly, adding an ether solvent into a polythiophene macro-molecular solution; after stirring for dispersing at a high speed, mixing with a UV prepolymer, an active diluent and a photoinitiator and stirring at a high speed till the mixture is uniformly dispersed; and finally adding a solvent. The film forming method of the antistatic UV coating comprises the following steps: coating an antistatic UV curing coating on a plastic thin film, and adopting a low-temperature vacuum drying or cooling, blowing and drying method to obtain a film which is 2-5 mu m thick; and then, firstly, curing for 2 seconds to 1 minute under the condition that the photocuring energy is 100-200mJ / cm<2> and then curing for 2 seconds to 1 minute under the condition that the photocuring energy is 600-1000mJ / cm<2>. The antistatic UV coating provided by the invention is good in stability and the prepared antistatic film further has the advantages of good antistatic property, high hardness, strong scratch resistance and the like.

Description

technical field [0001] The invention relates to the field of organic polymer compounds, relates to polymer compounds using only carbon-carbon double bonds, and specifically relates to UV curable resins. Background technique [0002] In recent years, with the rapid development of precision electronics and precision equipment industries, the production environment and packaging materials for some sensitive electronic components, chips, precision instruments and meters are very strict. For ordinary plastic sheets, due to the high-impedance insulation properties of plastics, static electricity is easily generated under friction or induction conditions. When a large amount of static electricity accumulates, high-voltage discharges are prone to occur, thereby damaging precision equipment. At the same time, due to the adsorption of static electricity, dust will accumulate on the plastic substrate, resulting in a decrease in cleanliness, which will interfere with the production of ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C09D175/14C09D165/00C09D7/12C08J7/04C08L69/00
CPCC08J7/0427C08J2333/12C08J2367/02C08J2369/00C08J2475/14C08L2205/035C09D7/65C09D175/14C08L65/00C08L83/12
Inventor 王锐涛袁慧雅王小莺曾雯黄贤瑞
Owner GUANGZHOU SHENWEI NEW MATERIAL TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com