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Modified ABS/PLA luminous composite material

A composite material and modification technology, applied in the direction of luminescent materials, additive processing, chemical instruments and methods, etc., to achieve the effect of broadening the scope of application, excellent luminescence properties, and excellent mechanical and electrical properties

Inactive Publication Date: 2016-12-14
佛山市高明区诚睿基科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the ABS / PLA conductive composite material in the prior art can be applied to the high-conductivity strip material required by the double-head 3D printing technology, but there is no relevant report that it has long afterglow luminescence characteristics. Therefore, it is urgent to develop a ABS / PLA composites with high electrical conductivity and excellent luminescent properties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 1. Pretreatment of polylactic acid raw materials: crush polylactic acid raw materials (D, L-polylactic acid raw materials, weight average molecular weight 100,000) into 300 mesh powders, disperse them in pure water, and ultrasonicate (power 250W) for 1 hour, while ultrasonically Microwave irradiation (2800MHz, temperature controlled at 85°C) for 1 hour; stop ultrasonic and microwave irradiation, wash, discharge, and dry to obtain pretreated polylactic acid;

[0024] 2. Preparation of PLA / carbon material masterbatch: Weigh 9.7 parts of carbon nanotubes and place them in a beaker, add chloroform, stir at high speed (1200r / min), and ultrasonic (power 400KW) for 3 hours to obtain a suspension of carbon nanotubes. Standby; at a heating temperature (60°C), dissolve 20 parts of pretreated polylactic acid in an organic solvent to obtain a polylactic acid solution, which is divided into two to obtain the first and second parts of polylactic acid solution, for later use; constant ...

Embodiment 2

[0029] Based on the preparation method of embodiment 1, the difference is only in:

[0030] Graphene / SiO 2 / Phosphor powder is prepared by the following method: disperse graphene in ethanol with ultrasonic stirring (700KW ultrasonic vibration and 1300r / min centrifugal speed stirring); then add a certain proportion (3:1) of water and ammonia water, stir well and then add normal The mass ratio of ethyl silicate to graphene is 1.8:1, the pH value is adjusted to 9, the reaction temperature is 25°C, and the reaction is carried out for 12 hours; centrifuged and washed with acetone and deionized water for 3 times to obtain a precipitate; the precipitate at 90 o Dry at C for 5h to obtain SiO-coated 2 The core-shell composite material; the coating with SiO 2 The core-shell composite material was heat-treated at 800°C for 1.5 h in an argon atmosphere; the heat-treated core-shell composite material was immersed in hydrofluoric acid for 15 min to remove part of the silica, centrifuged...

Embodiment 3

[0032] Based on the preparation method of embodiment 1, the difference is only in:

[0033] Graphene / SiO 2 / Phosphor powder is prepared by the following method: disperse graphene in ethanol with ultrasonic stirring (700KW ultrasonic vibration and 1300r / min centrifugal speed stirring); then add a certain proportion (3:1) of water and ammonia water, stir well and then add normal The mass ratio of ethyl silicate to graphene is 1.8:1, the pH value is adjusted to 9, the reaction temperature is 25°C, and the reaction is carried out for 12 hours; centrifuged and washed with acetone and deionized water for 3 times to obtain a precipitate; the precipitate at 90 o Dry at C for 5h to obtain SiO-coated 2 The core-shell composite material; the coating with SiO 2 The core-shell composite material was heat-treated at 800°C for 1.5 h under an argon atmosphere; the heat-treated core-shell composite material was immersed in hydrofluoric acid for 30 min to remove part of the silica, centrifu...

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Abstract

The invention discloses a modified ABS / PLA luminous composite material which is prepared from the following raw materials in parts by weight: 40 to 50 parts of polylactic acid, 20 to 25 parts of mass polymerization ABS, 10 to 20 parts of emulsion ABS, 5 to 10 parts of styrene-acrylonitrile-glycidyl methacrylate copolymer, 0.01 to 0.05 part of butyl triphenylphosphonium bromide, 5 to 10 parts of conductive filler, 3 to 8 parts of a fluorescent powder compound, a graphene quantum dot and porous graphene, wherein the fluorescent powder compound is a graphene / SiO2 / fluorescent powder or graphene / SiO2 / fluorescent powder / SiO2 composite material; the graphene quantum dot accounts for 0.5 to 1 percent of the weight of polylactic acid; the porous graphene accounts for 0.1 to 2 percent of the total weight of the ABS. The ABS / PLA luminous composite material is excellent in mechanical and electrical properties, and has the highest luminous performance, so that the application range of a 3D printing material is further expanded; the problem that the luminous characteristic of the composite material is reduced due to the fact that the added fluorescent powder, particularly nano-level fluorescent powder, is easy to agglomerate in the composite material in the prior art is solved.

Description

technical field [0001] The invention relates to the field of composite materials, in particular to an ABS / PLA light-emitting composite material for 3D printing. Background technique [0002] 3D printing technology, also known as additive manufacturing technology, is actually an emerging technology in the field of rapid prototyping. A technique for constructing objects in a manner. The basic principle is additive manufacturing, the technique of adding material layer by layer to generate a three-dimensional solid. At present, 3D printing technology is mainly used in product prototyping, mold manufacturing, art creation, jewelry making and other fields, replacing these traditional fine processing techniques. In addition, 3D printing technology is gradually applied in fields such as medicine, bioengineering, architecture, clothing, aviation, etc., opening up a broad space for innovation. [0003] At present, the ABS / PLA conductive composite material in the prior art can be ap...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/04C08L55/02C08L25/14C08K13/06C08K7/24C08K3/04C08K5/50C08K9/10C08K3/36C08K3/22C08K3/30B33Y70/00C09K11/65C09K11/56C09K11/64
CPCC08L67/04B33Y70/00C08K2201/003C08K2201/011C08K2201/014C08L2205/025C08L2205/035C09K11/565C09K11/655C08L55/02C08L25/14C08K13/06C08K7/24C08K3/04C08K5/50C08K9/10C08K3/36C08K3/22C08K2003/2206C08K2003/2227C08K2003/3036
Inventor 黎淑娟
Owner 佛山市高明区诚睿基科技有限公司
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