Coating material containing POSS acrylate copolymer and preparing method

A coating material, acrylate technology, applied in the direction of coating, etc., can solve problems such as difficult industrialization, insufficient wear resistance, and decreased impact strength, so as to increase crosslinking density, increase surface hardness, and reduce shrinkage. Effect

Inactive Publication Date: 2007-08-29
XIAMEN UNIV
View PDF1 Cites 57 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, UV curing coatings also have insurmountable shortcomings: 1. Due to the short curing time of UV curing, the residual stress is more prominent, and the mechanical properties are defective; 2. The volume shrinkage is more prominent; 3. The surface hardness is not large enough to be wear-resistant performance is not good enough
[0007] The above describes the current main methods of using nano-powders to fill polymers. Although these methods have a certain effect on improving hardness and wear resistance, the main disadvantages are: 1. The appearance of nano-inorganic particles due to incompatibility with the matrix Agglomeration, although surface modification or coating of nanoparticles is beneficial to reduce agglomeration, but the process is complicated, industrialization is difficult, and the surface energy of nanoparticles is large, so the tendency of agglomeration is unavoidable; 2. The addition of inorganic nanoparticles is often accompanied by curing The reduction of speed; 3. The agglomeration of nanoparticles becomes the source of collective defects, which makes the impact strength decrease from time to time

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
  • Coating material containing POSS acrylate copolymer and preparing method
  • Coating material containing POSS acrylate copolymer and preparing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Step 1. Into a 100ml three-necked bottle, add 50ml of xylene, feed nitrogen, heat to 120°C under stirring, and then add 5.0g of polyhedral oligomeric silsesquioxane-containing methacrylate monomers (wherein R=-CH 3 , n=1, Y=-CH 3 ) and initiator dicumyl peroxide 0.7g, first react 1h.

[0022] Step 2. Mix the monomer mixed with 30.0 g of methyl methacrylate, 5.0 g of butyl acrylate, 1.0 g of methyl acrylate, and 8.0 g of glycidyl methacrylate and chain transfer agent 0.5 isooctyl 3-mercaptopropionate g, was added dropwise to a three-necked flask, and continued to react for 8h.

[0023]Step 3. After cooling to room temperature, add hydroquinone 0.5g, DMF 20ml, and acrylic acid equivalent to glycidyl methacrylate, heat up to 80°C, and react for 7h.

[0024] Step 4. After cooling to room temperature, add 300ml of ethanol to precipitate the copolymer, filter, stir and wash with hot water and suction filter to remove the polymerization inhibitor hydroquinone, and rinse wit...

Embodiment 2

[0028] Step 1: As in Step 1 of Example 1, heat to 80° C. under stirring, add 1.0 g of acrylate monomers containing polyhedral oligomeric silsesquioxane (wherein R=-C 6 h 5 , n=6, Y=-H) and 0.5g initiator dicumyl peroxide were reacted for 1h.

[0029] Step 2: As in step 2 of Example 1, add 40.0 g of methyl methacrylate, 5.0 g of butyl acrylate, 1.0 g of methyl acrylate, and 10.0 g of glycidyl acrylate, and continue the reaction for 16 hours.

[0030] Step 3. After cooling to room temperature, add 0.8 g of hydroquinone, 30 ml of DMF, and acrylic acid equivalent to glycidyl methacrylate, raise the temperature to 120° C., and react for 4 hours.

[0031] Step 4: with embodiment 1;

[0032] Step 5: 50g of epoxy acrylate oligomer, 15g of (meth)acrylate copolymer active modifier containing polyhedral oligomeric silsesquioxane, 20g of hexanediol diacrylate and pentaerythritol diacrylate 15g, 3g of photoinitiator 2-hydroxyl-2-methyl-1-propiophenone (HMPP), 5g of Dow Corning 163 silox...

Embodiment 3～12

[0035] Steps 1 to 4: the specific operations are the same as steps 1 to 4 described in Example 1, except that the amount of each component is changed, and in the structural formula of the POSS monomer, R=-n-C 4 h 9 , n=2, Y=-CH 3 . The specific formula of modifier in each embodiment is shown in Table 1.

[0036] Table 1

[0037] Reality

apply

example

POSS

Monomer

(g)

Methacrylic

methyl ester

(g)

acrylic

Butyl ester

(g)

acrylic

methyl ester

(g)

Methacrylate

glycidyl ester

(g)

chain transfer

transfer agent

(g)

peroxide

Cumene

(g)

3

1.0

30.0

10.0

1.0

5.0

0.0

0.5

4

2.0

40.0

5.0

10.0

8.0

0.5

0.7

5

3.0

45.0

1.0

5.0

10.0

0.7

1.0

6

4.0

30.0

10...

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
hardnessaaaaaaaaaa
hardnessaaaaaaaaaa
shrinkageaaaaaaaaaa
Login to view more

Abstract

The invention relates to a manufacturing method for coat material containing POSS acrylate copolymer. It takes free radical copolymerized to acr monomer and other acr monomer, and uses as modifier adding into the base compounding of UV coat, after taking UV solidification the coat material of high rigidity would be gained. The constituent includes 40-55% light-cured resin, 5-20% active modifier, 20-45% spike, 1-10% photoinitiator, 2-10% anti-foam additive. The rigidity of coat could reach to 6H, and the shrinkage ratio could reach 2%.

Description

technical field [0001] The invention relates to the preparation of a coating, in particular to a coating material based on a nanostructured acrylate copolymer. Background technique [0002] Ultraviolet (UV) curing technology, as a "green technology" since the 1960s, has attracted widespread attention for its fast curing, low or no solvent release, and low curing temperature. UV curing technology is to irradiate photoinitiators with ultraviolet light to form free radicals or cations to initiate low-molecular-weight oligomers and reactive diluents (monomers) with unsaturated double bonds to form macromolecular cross-linking systems to obtain cured body shapes. structure. As one of the most commonly used products in UV curing materials, UV curable coatings have "4E" namely economy, energy saving, ecology and efficiency. The specific manifestations are: single component, easy to use; fast curing speed, generally a few seconds to tens of seconds to complete the curing, which is...

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): C09D133/08
Inventor 许一婷陈江枫戴李宗邓远名
Owner XIAMEN UNIV
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