Acrylic acid modified polysiloxane resin and application thereof to self-stratifying coating

A polysiloxane resin, acrylic technology, applied in anti-corrosion coatings and other directions, can solve problems such as poor weather resistance and long-term effect, achieve good anti-corrosion and weather resistance, obvious cost advantages, and improve the effect of anti-corrosion and weather resistance

Inactive Publication Date: 2016-04-13
SHANGHAI HUAYI FINE CHEM CO LTD
View PDF7 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem of poor weather resistance and long-lasting performance of industrial heavy-duty anti-corrosion coatings in the prior art, the present invention firstly provides an acrylic modified polysiloxane resin, which provides better dryness and weather resistance for coatings. The invention also provides a high-weather-resistant heavy-duty anti-corrosion coating with the resin as the main component and a cross-linking curing agent. The coating can have better anti-corrosion and weather resistance under extremely low silicon content

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
  • Acrylic acid modified polysiloxane resin and application thereof to self-stratifying coating
  • Acrylic acid modified polysiloxane resin and application thereof to self-stratifying coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Add 700g of solvent butyl acetate to the reactor, stir and heat up to 120°C, reflux for 15 minutes, start to add dropwise 800g of methyl methacrylate, 460g of hydroxyethyl acrylate, 40g of methacrylic acid, 150g of n-butyl acrylate, styrene 390g, a mixed solution of 160g of γ-methacryloxypropylmethyldimethoxysilane and 50g of initiator azobisisobutyronitrile, drop it in 3 hours, keep the temperature of the dropping process at 120°C, drop it After 2 hours of heat preservation, 10g of azobisisobutyronitrile (dissolved in 200g of butyl acetate) was added, further heat preservation was carried out for 1 hour, and finally 300g of butyl acetate was added, and the material was discharged to obtain propionic acid modified silicone resin-A.

Embodiment 2

[0033] Add 700g of solvent butyl acetate to the reactor, stir and heat up to 120°C, reflux for 15 minutes, start to add dropwise 750g of methyl methacrylate, 460g of hydroxyethyl acrylate, 40g of methacrylic acid, 190g of n-butyl acrylate, styrene 260g, a mixed solution of 300g of γ-methacryloxypropylmethyldimethoxysilane and 50g of initiator azobisisobutyronitrile, drop it in 3 hours, keep the temperature of the dropping process at 120°C, After 2 hours of heat preservation, 10 g of azobisisobutyronitrile (dissolved in 200 g of butyl acetate) was added, further heat preservation was carried out for 1 hour, and finally 300 g of butyl acetate was added and discharged to obtain propionic acid modified silicone resin-B.

Embodiment 3

[0035] Add 700g of solvent butyl acetate to the reactor, stir and heat up to 120°C, reflux for 15 minutes, start to add dropwise 750g of methyl methacrylate, 460g of hydroxyethyl acrylate, 40g of methacrylic acid, 190g of n-butyl acrylate, styrene 260g, a mixed solution of 300g vinyltriisopropoxysilane and 50g initiator azobisisobutyronitrile, drop it in 3 hours, keep the temperature of the dropping process at 120°C, keep warm for 2 hours after dropping, add 10g azobisisobutyronitrile Azodiisobutyronitrile (dissolved in 200g butyl acetate), keep warm for 1h, and finally add 300g butyl acetate before discharging. Propionic acid-modified silicone resin-C was obtained.

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 acrylic acid modified polysiloxane resin and application thereof to a self-stratifying coating. The resin contains two kinds of groups for a cross-linking reaction, consequently different curing agents can be selected for curing of the coating prepared from the resin according to performance requirements, and a silicon part and other parts in the resin have special compatibility. The self-stratifying coating containing the acrylic acid modified polysiloxane resin contains a component A and a component B, wherein the component A is prepared from 15-70 wt% of the acrylic acid modified polysiloxane resin, 5-40 wt% of pigment filler, 0.5-2 wt% of auxiliary and 10-45 wt% of solvent, and a coupling agent containing isocyanate groups or aminosilane can be selected for the component B according to coating performance requirements. Compared with an existing acrylic acid modified polysiloxane coating, the coating is high in surface drying speed, can achieve gradient self-stratifying in the film forming process, and has good corrosion resistance and weather resistance on the condition that the organosilicone content is extremely low.

Description

Technical field: [0001] The invention relates to the field of heavy-duty anti-corrosion coatings, in particular to an acrylic-modified polysiloxane resin and its application in self-layering coatings. Background technique [0002] With the development of the coatings industry, the market size of anti-corrosion coatings is second only to architectural coatings and ranks second in demand. [0003] At present, the commonly used anti-corrosion coating resins are composed of C-C molecular chains, and the chemical bonds will be broken under the irradiation of ultraviolet light. Even polyurethane coatings with relatively good weather resistance cannot meet the long-term weather resistance of heavy-duty anti-corrosion coatings. requirements. [0004] Therefore, the development of anti-corrosion coating topcoats with high weather resistance has become an important direction for the development of anti-corrosion coatings. The silicon-oxygen bond has good thermal stability and chemic...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/14C08F220/28C08F220/06C08F220/18C08F212/08C08F230/08C09D133/12C09D5/08
CPCC08F220/14C09D5/08C09D133/12C08F220/281C08F220/06C08F220/1804C08F212/08C08F230/08
Inventor 王娴娴许季海牟迪姚唯亮孙凌
Owner SHANGHAI HUAYI FINE CHEM 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