Crosslinked siloxane acrylate oligomer and photo-cured composition prepared from same

An acrylate and acrylate-based technology, applied in the field of light-curing polymer materials, can solve the problems of poor wiping resistance, poor anti-fouling ability, and poor inhibition of oxygen inhibition, and achieve fast curing speed and improved firmness. , Excellent inhibition of oxygen inhibition effect

Inactive Publication Date: 2019-05-14
新丰博兴聚合材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a cross-linked siloxane type acrylate with low Polymer, the cross-linked siloxane type acrylate oligomer provided has an excellent effect of inhibiting oxygen inhibition, and the prepared photocurable composition has perfect surface curing, fast curing speed, and improved firmness when it is photocured. Excellent antifouling ability and wiping resistance

Method used

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  • Crosslinked siloxane acrylate oligomer and photo-cured composition prepared from same
  • Crosslinked siloxane acrylate oligomer and photo-cured composition prepared from same
  • Crosslinked siloxane acrylate oligomer and photo-cured composition prepared from same

Examples

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Comparison scheme
Effect test

Embodiment 1

[0046] A crosslinked siloxane type acrylate oligomer, the preparation steps of which are as follows:

[0047] S1. Step: Preparation of the compound of formula (I), the compound of formula (I) in this embodiment is named as compound A 1 .

[0048] Add 18g of (3-piperazinepropyl)trimethoxysilane and 20g of trimethylolpropane triacrylate (TMPTA, technical grade purity) into 100mL of acetonitrile solution, under nitrogen protection, stir and react at 60°C for 12 h, The solvent was spin-dried to obtain off-white transparent liquid, and compound A was obtained 1 . Compound A 1 The structural formula is In ESI(+)-MS, (M+2) / Z=274, and in the infrared spectrum, at 3424cm -1 There is almost no infrared absorption at the (N-H bond stretching vibration absorption peak), which shows that the target compound A has been successfully synthesized. 1 .

[0049] S2. Step: Compound A 1 Preparation of oligomer M by reaction and crosslinking with hydroxyl-terminated polysiloxane compound ...

no. 2 example

[0056] This embodiment is the second embodiment of the crosslinked siloxane type acrylate oligomer of the present invention, and its preparation steps are as follows:

[0057] S1. Step: Preparation of the compound of formula (I), the compound of formula (I) in this embodiment is named as compound A 2 .

[0058] Add 18g of N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane and 53g of 1,6-hexanediol diacrylate (HDDA, technical grade purity) into 100mL acetonitrile solution, under nitrogen protection, After stirring and reacting at 50°C for 12h, the solvent was spin-dried to obtain an off-white transparent liquid, and compound A 2 . Compound A 2 The structural formula is In ESI(+)-MS, (M+1) / Z values ​​are 451, 677, 903, and in the infrared spectrum, at 3427cm -1 There is almost no infrared absorption at the (N-H bond stretching vibration absorption peak), which shows that the target compound A has been successfully synthesized 2 .

[0059] S2. Step: Compound A 2 Preparation ...

no. 3 example

[0066] This embodiment is the third embodiment of the crosslinked siloxane type acrylate oligomer of the present invention, and its preparation steps are as follows:

[0067] S1. Step: Preparation of the compound of formula (I), the compound of formula (I) in this embodiment is named as compound A 3 .

[0068] Add 18g of N-n-butylaminopropyltrimethoxysilane and 13g of 1,2-ethylene glycol diacrylate (industrial grade purity) into 60mL of acetonitrile solution, under nitrogen protection, stir and react at 50°C for 12h, and then The solvent was spin-dried to obtain an off-white transparent liquid, and compound A was obtained 3 . Compound A 3 The structural formula is In ESI(+)-MS, the (M+1) / Z value is 306, and in the infrared spectrum, at 3430cm -1 There is almost no infrared absorption at (N-H bond stretching vibration absorption peak), which indicates that the target compound A was successfully synthesized 3 .

[0069] S2. Step: Compound A 3 Preparation of oligomer M b...

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Abstract

The invention discloses a crosslinked siloxane acrylate oligomer which is prepared by reaction crosslinking of a compound in a formula (I) and hydroxy-terminated polysiloxane. An RA group contains tertiary amine and an acrylate group, and R is alkyl with the carbon atom number of 1-8. The crosslinked siloxane acrylate oligomer is provided with a tertiary amine structure, the acrylate group and a crosslinked structure siloxane chain and has excellent oxygen inhibition suppression function. When a photo-cured composition prepared from the oligomer is photo-cured, the surface of the photo-cured composition is perfectly cured, curing speed is high, and firmness is improved. Moreover, the photo-cured composition has excellent antifouling capacity and wiping resistance.

Description

technical field [0001] The invention relates to the technical field of photocurable polymer materials, more specifically, to a kind of crosslinked siloxane type acrylate oligomer and the photocurable composition prepared therefrom. Background technique [0002] Light curing technology is widely used in printing and packaging, bamboo wood plastics and other fields due to its advantages of energy saving and environmental protection, high curing efficiency, good economic benefits, and no VOCs emissions. UV curing coatings can be used as surfaces for wood, paper, metal, plastic, optical fibers, etc. Protective coating. [0003] Free radical photoinitiators are commonly used in photocuring to initiate polymerization. Although the curing speed is fast, due to the ubiquitous oxygen inhibition effect of free radical polymerization, especially on the surface of micron and nanoscale, the surface of photocurable coatings always has problems that cannot be ignored. Oxygen inhibition le...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G77/26C08G77/388C09D175/14C09D183/08C09D5/16
Inventor 庞来兴黄李江李志云钟柳光谢平
Owner 新丰博兴聚合材料有限公司
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