Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Polycarbonate composite material for 3D printing and preparation method thereof

A polycarbonate and composite material technology, applied in the field of 3D printing materials, can solve the problems of easy agglomeration, shrinkage, poor fluidity, etc., and achieve the effects of uniform solidification, easy control of the preparation process, and reduction of thermal shrinkage.

Active Publication Date: 2016-04-20
东莞市盈合精密塑胶有限公司
View PDF3 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of the requirements of 3D printing technology for polycarbonate powder materials, and the current defects of polycarbonate powder such as easy agglomeration, poor fluidity, and severe shrinkage, the present invention provides a polycarbonate composite material for 3D printing and its preparation method

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 1) Surface modification of magnesium borate whiskers and graphene oxide: Add 10 parts by weight of magnesium borate whiskers, 3 parts of graphene oxide and water into a container, and ultrasonically disperse for 3 minutes to prepare a suspension; add 0.2 parts by weight of Dissolve the coupling agent in ethanol to prepare a solution with a coupling agent mass content of 20%; mix the suspension with the coupling agent solution, heat to 40~60°C, stir for 20 minutes, filter, and vacuum dry to obtain the modified material ;

[0031] 2) Add the modified material obtained in step 1), 50 parts by weight of polycarbonate, and 0.1 part by weight of heat stabilizer into a high-speed mixer, stir and mix at high speed for 10 minutes, and send it into an intermeshing co-rotating twin-screw extruder for melting Plasticizing, shear modification, extruding and pelletizing to produce polycarbonate composite pellets;

[0032] 4) Pulverize the composite material particles prepared in ste...

Embodiment 2

[0034] 1) Surface modification of magnesium borate whiskers and graphene oxide: Add 20 parts by weight of magnesium borate whiskers, 5 parts of graphene oxide and water into a container, and ultrasonically disperse for 5 minutes to prepare a suspension; add 0.5 parts by weight of Dissolve the coupling agent in ethanol to prepare a solution with a coupling agent mass content of 20%; mix the suspension with the coupling agent solution, heat to 40~60°C, stir for 40 minutes, filter, and vacuum dry to obtain the modified material ;

[0035] 2) Add the modified material obtained in step 1), 60 parts by weight of polycarbonate, and 0.5 parts by weight of heat stabilizer into a high-speed mixer, stir and mix at high speed for 15 minutes, and send it into an intermeshing co-rotating twin-screw extruder for melting Plasticizing, shear modification, extruding and pelletizing to produce polycarbonate composite pellets;

[0036] 4) Pulverize the composite material particles prepared in st...

Embodiment 3

[0038] 1) Surface modification of magnesium borate whiskers and graphene oxide: Add 20 parts by weight of magnesium borate whiskers, 4 parts of graphene oxide and water into a container, and ultrasonically disperse for 3 minutes to prepare a suspension; add 0.2 parts by weight of Dissolve the coupling agent in ethanol to prepare a solution with a coupling agent mass content of 20%; mix the suspension with the coupling agent solution, heat to 40~60°C, stir for 20 minutes, filter, and vacuum dry to obtain the modified material ;

[0039] 2) Add the modified material obtained in step 1), 70 parts by weight of polycarbonate, and 0.1 parts by weight of heat stabilizer into a high-speed mixer, stir and mix at high speed for 20 minutes, and send it into an intermeshing co-rotating twin-screw extruder for melting Plasticizing, shear modification, extruding and pelletizing to produce polycarbonate composite pellets;

[0040] 4) Pulverize the composite material particles prepared in step...

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

No PUM Login to View More

Abstract

The invention relates to a polycarbonate composite material for 3D printing and a preparation method thereof. Magnesium borate whiskers and graphene oxide are introduced into polycarbonate, so that not only is the polycarbonate strengthened, but also carboxyl, hydroxyl and epoxy functional groups can be promoted to be connected with the polycarbonate and to be uniformly dispersed, the thermal superconductivity of the graphene oxide allows powder in the polycarbonate to be uniformly heated and solidified, thereby reducing the thermal shrinkage of a product during 3D printing. Further, by virtue of polyelectrolytes, the polycarbonate powder is subjected to surface modification at a fluidized bed, so that the surface of the polycarbonate powder is more in a spherical shape, the mobility of the polycarbonate is greatly improved, the powder agglomeration is effectively prevented, and the polycarbonate is suitable for a 3D printing material.

Description

technical field [0001] The invention relates to a polycarbonate composite material and a preparation method thereof. More specifically, the invention relates to a polycarbonate composite material powder for 3D printing and a preparation method thereof, belonging to the field of 3D printing materials. Background technique [0002] 3D printing is a kind of rapid prototyping technology. It is a technology based on digital model files and using bondable materials such as powdered metal or plastic to construct objects by layer-by-layer printing. It is also called augmentation. It is fast in manufacturing and can fully reproduce the three-dimensional effect, so that product design and mold production can be carried out simultaneously, and the integration of design and manufacturing can be realized. A wide range of materials can be used on 3D printing equipment, including metal materials, inorganic powder materials, ceramic materials, polymer materials, wax, paper, etc. [0003] A...

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
IPC IPC(8): C08L69/00C08K13/06C08K9/06C08K7/08C08K3/04C08J7/12B33Y70/00
CPCC08J7/12C08J2369/00C08K3/04C08K7/08C08K9/06C08K13/06C08K2201/003C08K2201/004C08L69/00
Inventor 陈庆叶任海陈兵
Owner 东莞市盈合精密塑胶有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com