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Self-crosslinking fluorescent latex based on aggregation-induced emission mechanism and preparation method thereof

A technology of aggregation-induced luminescence and self-crosslinking, which is applied in the direction of luminescent coatings and coatings, can solve the problems of poor compactness of the paint film and the influence of the protective effect of the paint film, and achieve the effect of promoting the increase of light intensity and the restriction of intramolecular movement

Active Publication Date: 2018-02-09
SUZHOU JIREN HIGH TECH MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the film-forming properties of latex particles, the compactness of the paint film is relatively poor, which affects the protective effect of the paint film

Method used

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  • Self-crosslinking fluorescent latex based on aggregation-induced emission mechanism and preparation method thereof
  • Self-crosslinking fluorescent latex based on aggregation-induced emission mechanism and preparation method thereof
  • Self-crosslinking fluorescent latex based on aggregation-induced emission mechanism and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] This case provides a self-crosslinking fluorescent latex based on the mechanism of aggregation-induced luminescence. The raw materials for preparing the self-crosslinking fluorescent latex include: water, acrylate reaction mixture, anionic emulsifier, nonionic emulsifier, and water-soluble initiator. In percentage terms, the raw materials for preparing the acrylate reaction mixture include:

[0024]

[0025] Wherein, the added anionic emulsifier is 1.5wt% relative to the mass percent of the acrylate reaction mixture, the nonionic emulsifier is 0.25wt% relative to the mass percent of the acrylate reaction mixture, and the water-soluble initiator used is Relative to 1 wt% of the mass percentage of the acrylate reaction mixture, the relative addition of water in the system is controlled simultaneously so that the polymer solid content of the prepared water-based fluorescent latex is in the range of 50 wt%.

[0026] Further, the structural formula of the E-bis-1,2-benzyl...

Embodiment 2

[0035] This case provides a self-crosslinking fluorescent latex based on the mechanism of aggregation-induced luminescence. The raw materials for preparing the self-crosslinking fluorescent latex include: water, acrylate reaction mixture, anionic emulsifier, nonionic emulsifier, and water-soluble initiator. In percentage terms, the raw materials for preparing the acrylate reaction mixture include:

[0036]

[0037] Wherein, the anionic emulsifier added is 1.2wt% relative to the mass percent of the acrylate reaction mixture, the nonionic emulsifier is 0.3wt% relative to the mass percent of the acrylate reaction mixture, and the water-soluble initiator used is Relative to the 0.8wt% of the mass percentage of the acrylate reaction mixture, the relative addition of water in the system is controlled at the same time, so that the polymer solid content of the prepared water-based fluorescent latex is in the range of 40wt%.

[0038] Further, the structural formula of the E-bis-1,2-...

Embodiment 3

[0047] This case provides a self-crosslinking fluorescent latex based on the mechanism of aggregation-induced luminescence. The raw materials for preparing the self-crosslinking fluorescent latex include: water, acrylate reaction mixture, anionic emulsifier, nonionic emulsifier, and water-soluble initiator. In percentage terms, the raw materials for preparing the acrylate reaction mixture include:

[0048]

[0049]

[0050] Wherein, the anionic emulsifier added is 0.8wt% relative to the mass percent of the acrylate reaction mixture, the nonionic emulsifier is 0.4wt% relative to the mass percent of the acrylate reaction mixture, and the water-soluble initiator used is Relative to 0.3wt% of the mass percentage of the acrylate reaction mixture, the relative addition of water in the system is controlled, so that the polymer solid content of the prepared water-based fluorescent latex is in the range of 30wt%.

[0051] Further, the structural formula of the E-bis-1,2-benzylami...

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Abstract

The invention discloses a self-crosslinking fluorescent latex based on an aggregation-induced emission mechanism and a preparation method thereof. The self-crosslinking fluorescent latex is prepared from the following raw materials: water, an acrylate reaction mixture, an anionic emulsifier, a nonionic emulsifier and a water-soluble initiator, wherein the acrylate reaction mixture is prepared fromthe following raw materials in mass percentage: 0.05-1wt% of E-bis-1,2-benzylaminophenyl-1,2- diphenylethylene, 30-55wt% of methyl methacrylate, 25-35wt% of isooctyl acrylate, 5-15wt% of methacrylicacid, 1-10wt% of diacetone acrylamide and 1-10wt% of adipic acid dihydrazide. According to the self-crosslinking fluorescent latex and the preparation method thereof, cross-linked polymer chain segment wrapping and constraining effect is used to restrain intramolecular motions of connected fluorescent molecules, thereby enabling the realization of fluorescence emission. The obtained fluorescent latex can be applied to the fields of biology or optics.

Description

technical field [0001] The invention relates to the field of functional coatings, in particular to a self-crosslinking fluorescent latex based on an aggregation-induced luminescent mechanism. Background technique [0002] Paint, as a polymer material that is painted on the substrate and protects it. It can protect and beautify the substrate. Most of the traditional coatings are organic solvent-based coatings. With the deepening of people's awareness of environmental protection, the limitation of volatile organic compounds (VOC) has been paid more and more attention by people. It has become an industry consensus to reduce VOC emissions. The latex prepared by emulsion polymerization, with water as the main solvent, has become an important direction. However, due to the film-forming properties of latex particles, the compactness of the paint film is relatively poor, which affects the protective effect of the paint film. [0003] With the improvement of the functional require...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/12C09D5/22C09D7/63C08F220/14C08F220/18C08F220/06C08F220/58C08F212/36C08F2/26C08F2/30
CPCC08F2/26C08F2/30C08F220/14C09D5/22C09D133/064C08F220/1808C08F220/06C08F220/58C08F212/32
Inventor 李为立徐泽孝
Owner SUZHOU JIREN HIGH TECH MATERIAL CO LTD
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