Polycarbonate composition for 3D printing technology and preparation method thereof
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A polycarbonate, 3D printing technology, applied in the field of polymer materials, can solve problems such as wide melting range, limited application, warpage, etc., to achieve the effect of solving warpage and improving heat transfer performance
Inactive Publication Date: 2015-08-12
SHANGHAI KUMHO SUNNY PLASTICS
View PDF5 Cites 14 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0004] Due to its wide melting range, conventional PC / ABS has defects such as warping during fusion and superposition, which limits its application in 3D printing
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
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
[0034] (2) Feed the raw materials from the feeding port, melt and extrude at 200-280°C, the screw extruder rotates at 500rpm, and the pressure is 2MPa, melts and extrudes, and granulates to obtain the product.
[0035] (3) The screw diameter of the extruder is 58 mm, and the aspect ratio is 60.
[0038] (2) Feed the raw materials from the feeding port, melt and extrude at 200-280°C, the screw extruder rotates at 500rpm, and the pressure is 2MPa, melts and extrudes, and granulates to obtain the product.
[0039] (3) The screw diameter of the extruder is 58 mm, and the aspect ratio is 60.
[0042] (2) Feed the raw materials from the feeding port, melt and extrude at 200-280°C, the screw extruder rotates at 500rpm, and the pressure is 2MPa, melts and extrudes, and granulates to obtain the product.
[0043] (3) The screw diameter of the extruder is 58 mm, and the aspect ratio is 60.
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
Property
Measurement
Unit
particle diameter
aaaaa
aaaaa
particle diameter
aaaaa
aaaaa
aspect ratio
aaaaa
aaaaa
Login to view more
Abstract
The invention relates to a polycarbonate composition for 3D printing technology and a preparation method thereof. The composition is composed of the following components according to a certain ratio: polycarbonate resin, SAN-GMA, nano silicon dioxide, a flexibilizer, an antioxidant, and a lubricant. The diameter of the screw rod of an extruder used in alloy preparation is 58 mm, and the length / diameter ratio is 60. The preparation method comprises the following steps: adding PC resin, SAN-GMA resin, nano silicon dioxide, a flexibilizer, an antioxidant, and a lubricant into a mixing and stirring machine, mixing, transferring the mixture to a double-screw-rod extruder, blending, melting, extruding, and granulating to obtain the polycarbonate composition for 3D printing. Compared with the prior art, during the preparation process, the PC / ABS melting range is shortened, furthermore, nano silicon dioxide is added to enhance the heat transferring performance of the polycarbonate composition, and the warping problem during the 3D printing process is solved.
Description
technical field [0001] The invention relates to the field of polymer materials, in particular to a polycarbonate composition used in 3D printing technology and a preparation method thereof. Background technique [0002] 3D printing technology is a rapid prototyping technology, which is a high-tech manufacturing technology based on the material accumulation method. It uses three-dimensional CAD data to accumulate layers of materials into a solid prototype through a rapid prototyping machine. 3D printing is gradually applied in medicine, aviation, construction and other fields due to its advantages of fast production and complete online three-dimensional effect. [0003] 3D printing technologies include SLA, FDM, SLS and LOM processes. Among them, FDM uses thermoplastic polymer materials to be extruded from the nozzle in a molten state, solidified to form a thin layer of contour shape, and then stacked layer by layer to form the final product. The raw materials used in the F...
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
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more