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Polymer-based fluorescent functional composite material and fusing process method thereof

A functional composite material and melt processing technology, applied in the direction of luminescent materials, chemical instruments and methods, etc., can solve the problems of low fluorescence emission efficiency and poor fluorescence stability, and achieve uniform dispersion, simple processing method, excellent fluorescence and processing performance Effect

Inactive Publication Date: 2012-09-26
DONGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The invention provides a polymer-based perylene-based fluorescent functional composite material and its melting processing method, which are used to solve the defects and deficiencies of poor fluorescence stability and low fluorescence emission efficiency of current fluorescent functional composite materials

Method used

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  • Polymer-based fluorescent functional composite material and fusing process method thereof
  • Polymer-based fluorescent functional composite material and fusing process method thereof
  • Polymer-based fluorescent functional composite material and fusing process method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034]

[0035] The matrix material of the composite material is PP slice, and the perylene series fluorescent additive is a compound of crystalline formula (III).

[0036] Grind the perylene-based fluorescent additive crystals dried in vacuum for 3 hours in a ball mill to make it into a powder with a particle size between 10nm and 100um. It is 110°C. The kneaded mixture was dried in vacuum with a vacuum degree of 10KPa and a temperature gradient, the drying temperature was 90°C, and the total drying time was 10h. After drying thoroughly, it is poured into twin-screw extrusion equipment, melted and extruded, and the transmission temperature is 190 ° C. After the melt is extruded, it is drawn and cooled under water to form filaments, and finally enters the pelletizer to cut into pellets to obtain fluorescent functional composites. resin. The composite resin was vacuum-dried, and the drying process was the same as that of the kneaded product in this example, and the weight ...

Embodiment 2

[0044]

[0045] The matrix material of the composite material is PA66 slice, and the perylene series fluorescent additive is a compound of crystalline formula (IV).

[0046] Grind the perylene-based fluorescent additive crystals dried in vacuum for 3 hours in a ball mill to make it into a powder with a particle size between 10nm and 100um. to 190°C. The kneaded mixture was dried in vacuum with a vacuum degree of 2KPa and three temperature gradients, namely 90°C for 10h, 110°C for 10h, and 120°C for 8h. After drying thoroughly, it is poured into twin-screw extrusion equipment, and the melt transfer temperature is 260°C. After the melt is extruded, it is stretched and cooled under water to form filaments, and finally enters a pelletizer to cut into pellets to obtain a fluorescent functional composite resin. Vacuum drying, the drying process is the same as that of the kneaded product in this example, and the weight content of the perylene-based fluorescent additive in the com...

Embodiment 3

[0048]

[0049] The matrix material of the composite material is a PET slice, and the perylene-based fluorescent additive is a compound of the crystalline formula (V).

[0050] Grind the perylene-based fluorescent additive crystals dried in vacuum for 3 hours in a ball mill to make it into a powder with a particle size between 10nm and 100um. to 190°C. The kneaded mixture was dried in vacuum at a vacuum degree of 4KPa, and three temperature gradients were carried out, namely 90°C for 15h, 120°C for 20h, and 130°C for 15h. After drying thoroughly, it is poured into twin-screw extrusion equipment, and the melt transfer temperature is 270°C. After the melt is extruded, it is stretched and cooled under water to form filaments, and finally enters a pelletizer to cut into pellets to obtain a fluorescent functional composite resin. The composite resin was vacuum-dried, and the drying process was the same as that of the kneaded product in this example, and the weight content of th...

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Abstract

The invention provides a polymer-based fluorescent functional composite material and a fusing process method thereof. According to the technical scheme provided by the invention, the composite material comprises the following ingredients in proportion by weight: 80-99wt% of polymer matrix and 1-20wt% of crystalline diketopyrro-pyrroles fluorescent additive. The fusing process method includes the following steps: 1, preliminary kneading; 2, fusing and prilling, and 3, machine-shaping. The composite material provided by the invention has excellent fluorescence performance and processability, and can correspondingly emit red fluorescent light with wavelength of 600-680nm when the composite material is excited by light with wavelength of 200-600nm; the fluorescence quantum yield is over 35%; and the composite material can maintain the fluorescence function for more than one year. The composite material is simple in processing method, and the distribution of the additive in the modified material is even. The composite material and the fusing process method are suitable for industrial popularization.

Description

technical field [0001] The invention belongs to the technical field of fluorescent functional composite materials, in particular to a high-efficiency fluorescent emitting polymer / crystalline POSS substituted peryleneimide composite material and a melting processing method thereof Background technique [0002] Polymer composite materials with fluorescence emission function, including fibers, plastics, films, coatings, etc., play a very important role in the fields of clothing, fire protection, chemical sensors, road signs, banknotes or commodity outsourcing anti-counterfeiting and detection. This type of composite material is usually prepared by compounding (blending, in situ) the fluorescent functional additive with the polymer matrix. [0003] Fluorescent functional additives mainly include inorganic fluorescent materials and organic fluorescent materials. Inorganic fluorescent materials are represented by rare earth ion luminescence and rare earth fluorescent materials. B...

Claims

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Application Information

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IPC IPC(8): C08K5/549C08L23/12C08L23/06C08L67/02C08L77/00C08L81/02C08L71/08C09K11/06
Inventor 孙宾朱美芳张文斌刘洋张须臻
Owner DONGHUA UNIV
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