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

Nanoscale waterproof film and preparation method thereof

A waterproof film, nano-level technology, applied in the direction of polyurea/polyurethane coatings, coatings, etc., can solve the problems of affecting reliability, water leakage, gaps, etc., to achieve strong hydrophobicity and oil repellency, improve hydrophobicity, and strong heat dissipation sexual effect

Active Publication Date: 2014-04-30
深圳九合伟业科技有限公司
View PDF5 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1) Although the shell or protective cover can play a certain waterproof role, the waterproof structure will have gaps after long-term use or under certain water pressure, resulting in water leakage, and then water, beverages, oil mist and other liquids will If it enters the electronic product, if it is light, it will damage some internal configurations of the electronic product, such as circuit boards, memory, etc., which will affect the normal operation and reliability of use; It will be a loss from the perspective of personal interests or from the perspective of social resources
[0004] 2) The shell or protective cover increases the volume of the electronic product, which changes the nature, weight, electrical performance and other characteristics of the electronic product, which affects the use effect of the audio and optical devices of the electronic product
[0005] 3) This waterproof treatment increases the production cost and difficulty of electronic products, and cannot effectively prolong the service life of electronic products

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Nanoscale waterproof film and preparation method thereof
  • Nanoscale waterproof film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0036] Based on the above raw material ratio, the present invention also provides a method for preparing a nanoscale waterproof film, comprising the following steps:

[0037]In the first step, according to the weight ratio, 30-60% of nano-fluoropolymer particles, 0.1-8% of polysiloxane and some odorless solvents are added into the reaction kettle and stirred until completely dissolved;; in this step The main chain of polysiloxane is composed of -Si-O-bond. At least one chemical bond in the silicon atom is connected with the fluoride ion of the nano-fluoropolymer particle, so that the two polymers are intertwined and chemically cross-linked through the molecular chain. Together, they can form a polymer complex with excellent comprehensive properties. Under the same process conditions, the increase of fluoropolymer particles alone does not significantly improve the hydrophobic performance, because the -CR group in the film has reached a certain surface-trapping ability, and then...

Embodiment 1

[0046] In the first step, 30% of nano-fluoropolymer particles, 2% of polysiloxane and 30% of odorless solvent are selected according to the weight ratio and added to the reactor for stirring until completely dissolved; in the second step, 15% of polyurethane is added to the reactor Continue to stir until the polyurethane is completely dissolved; the third step is to add 2% of nano-titanium dioxide and 3% of nano-zinc oxide into the reaction kettle, and add the remaining 13% of the odorless solvent, and disperse it by ultrasonic wave until there is no Granules: Add 4% wollastonite fiber, 0.8% dispersant and 0.2% preservative, stir until completely dissolved, and stand still for 20 minutes to obtain a waterproof liquid. Then carry out the fifth to eighth steps above, that is, to form a nanoscale film.

Embodiment 2

[0048] In the first step, 45% of nano-fluoropolymer particles, 5% of polysiloxane and 30% of odorless solvent are selected according to the weight ratio and added to the reactor for stirring until completely dissolved; in the second step, 15% of polyurethane is added to the reactor Continue to stir until the polyurethane is completely dissolved; the third step is to add 2% of nano-titanium dioxide and 3% of nano-zinc oxide into the reaction kettle, and add the remaining 15% of the odorless solvent, and disperse it by ultrasonic wave until there is no Granules: Add 4% wollastonite fiber, 0.8% dispersant and 0.2% preservative, stir until completely dissolved, and stand still for 20 minutes to obtain a waterproof liquid. Repeat the fifth to eighth steps above, that is, to form a nanoscale film.

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

No PUM Login to View More

Abstract

The invention discloses a nanoscale waterproof film and a preparation method thereof. The waterproof film mainly comprises the following raw materials in percentage by weight: 30-60 percent of nano-fluorine polymer particles, 0.1-8 percent of polysiloxane, 5-15 percent of polyurethane, 40-70 percent of an odorless solvent, 1-10 percent of wollastonite fibers, 0.5-5 percent of nano-titanium dioxide, 1-8 percent of nano-zinc oxide and 0.2-1.5 percent of an additive, wherein the particle diameters of the nano-fluorine polymer particles are 50-100 nanometers. After a nanoscale liquid film is formed on an electronic product, liquid contacting with the film is condensed into water drops which fall off freely, so that the electronic product has completely the same function as normal use. By adopting the nanoscale film, objects can be prevented from being corroded by damp air, sweat, moisture and the like without influencing the appearances of electronic products or causing changes in the properties such as inherent properties, weights and optical performance of the electronic products.

Description

technical field [0001] The invention relates to the field of electronic waterproofing, in particular to a nanoscale waterproof film and a preparation method thereof. Background technique [0002] With the increasing durability requirements of electronic 3C products, waterproof treatment has become the choice of many electronic products. At present, most outdoor "three-proof" electronic products will emphasize their waterproofness. However, the waterproof technology of most electronic products on the market is to achieve waterproof through specially treated shells or protective sleeves. This waterproof technology has the following defects during use: [0003] 1) Although the shell or protective cover can play a certain waterproof role, the waterproof structure will have gaps after long-term use or under certain water pressure, resulting in water leakage, and then water, beverages, oil mist and other liquids will If it enters the electronic product, if it is light, it will d...

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): C09D127/16C09D175/04C09D7/12
Inventor 蒙其伟汪文珍
Owner 深圳九合伟业科技有限公司
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