Fogdrop-proof coating combination and preparation method thereof

A composition and coating technology, which can be used in antifouling/underwater coatings, cellulose derivative coatings, and biocide-containing paints, etc. Problems such as difficult processing and low thermal stability, to achieve the effects of good placement stability, simple preparation method and good dispersibility

Active Publication Date: 2007-09-19
PETROCHINA CO LTD
View PDF10 Cites 33 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the internal addition method is generally used in our country, but there are some problems: (1) the transparency is reduced; (2) the thermal stability is low; (3) the strength of the film is reduced; (4) due to the polarity of the anti-fogging agent and the matrix resin The difference is very large, and it is easy to migrate and be lost by water erosion, so the non-drip life of polyethylene film is short, generally 3-6 months; (5) Dif

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

[0034] (1) Aluminum sol solution preparation

[0035] Add 10kg water, 3kg colloidal alumina (Al 2 o 3 Content 30%), stir at 25°C until fully mixed.

[0036] (2) Preparation of nonionic surfactant solution

[0037] Take another container and add 1kg of water and 0.3kg of polyoxyethylene sorbitan monooleate, heat to 50°C and stir to dissolve to form a uniform solution.

[0038] (3) Adhesive solution preparation

[0039] Take another container and add 1kg of water and 0.02kg of carboxyethyl cellulose, and heat to 40°C to dissolve into a homogeneous solution.

[0040] (4) Preparation of coating composition

[0041] Add the prepared nonionic surfactant solution (2) into the aluminum sol solution (1), stir to disperse, then add the binder solution (3), stir until uniformly dispersed, and then add 85kg of water.

Embodiment 2

[0043] (1) Aluminum sol solution preparation

[0044] Add 20kg water, 2.5kg colloidal alumina (Al 2 o 3 % content 25), stir at 25°C until fully mixed.

[0045] (2) Preparation of nonionic surfactant solution

[0046] Take another container and add 2kg of water and 0.4kg of polyoxyethylene sorbitan monostearate, heat to 50°C and stir to dissolve to form a uniform solution.

[0047] (3) Adhesive solution preparation

[0048] Take another container and add 2kg of water and 0.04kg of hydroxymethylcellulose, and heat to 40°C to dissolve into a homogeneous solution.

[0049] (4) Preparation of coating composition

[0050] Add the prepared nonionic surfactant solution (2) into the aluminum sol solution (1), stir to disperse, then add the binder solution (3), stir until uniformly dispersed, and then add 75kg of water.

Embodiment 3

[0052] (1) Aluminum sol solution preparation

[0053] Add 10kg water, 0.96kg colloidal alumina (Al 2 o 3 % is 16), stirred at 25°C until fully mixed.

[0054] (2) Preparation of nonionic surfactant solution

[0055] Take another container and add 1kg of water and 0.5kg of polyoxyethylene sorbitan palmitic acid monoester, heat to 50°C and stir to dissolve to form a uniform solution.

[0056] (3) Adhesive solution preparation

[0057] Take another container and add 1kg of water and 0.015kg of hydroxypropyl cellulose, and heat to 40°C to dissolve into a homogeneous solution.

[0058] (4) Preparation of coating composition

[0059] Add the prepared nonionic surfactant solution (2) into the aluminum sol solution (1), stir and disperse, then add the binder solution (3), stir until uniformly dispersed, and then add 87kg of water.

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 relates to a anti-fogdrop painting composition, which includes four components of A, B, C and water, A is colloid aluminum oxide and content thereof is 0.9-3.6%, B is polyoxyethylene-containing non-ion surfactant and content thereof is 0.1-0.5%, C is water-soluble cellulose derivative adhesive and content thereof is 0.01-0.04%, and residual component is water. The composition possesses good dispersivity and placing stability, low viscosity, and small particle diameter; can reach to painting demand without grinding of colloid mill; and can endow thin film after coating to polyethylene thin film with good initial anti-fog property and long anti-drop validity period of at least three years. The invention also discloses preparation method for the anti-fogdrop painting composition, which is simple, low-cost and pollution-free to environment.

Description

technical field [0001] The invention relates to an anti-fog drop coating composition and a preparation method thereof, which is especially suitable for anti-fog drop coating of polyethylene films. Background technique [0002] Polyethylene resin is a kind of hydrophobic resin. When the surface temperature of a film made of polyethylene is lower than the dew point temperature of the environment, dew point condensation will occur, making the surface of the film atomized and dew droplets attached. When polyethylene film is used as a covering material for greenhouses and agricultural cultivation, water vapor will condense on the inner surface of the film to form water droplets. Each water droplet is a small lens, and the water droplets can reflect or refract sunlight and act as a lens. It causes light and heat to concentrate on the local part of the crop tissue, causing burns on the crop leaves. A large number of water droplets adhere to the surface of the film and are difficul...

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): C09D101/08C09D5/16
Inventor 谈敦礼郭义张庆国杨世元刘鹏王美玲
Owner PETROCHINA CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap