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Modified polycarbonate/aliphatic aromatic copolyester composition, preparation method and application

An aliphatic aromatic polycarbonate technology, applied in the field of 3D printing materials, can solve the problems of high light transmittance, high yellowness value, low light transmittance, etc.

Active Publication Date: 2022-06-28
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] One of the technical problems to be solved by the present invention is the problem of low light transmittance and high yellowness value of the modified polycarbonate material for 3D printing prepared by reducing the temperature of the printing nozzle and the bottom plate in the prior art. Modified polycarbonate / aliphatic aromatic copolyester composition, which can reduce the temperature of the printing nozzle and the bottom plate, and has the advantages of high light transmittance and low yellowness value

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] Weigh each raw material according to the following proportions: PC SABIC HF1130 is 80 parts by mass, PBAT BASF BX7011 is 20 parts by mass, BASF ADR-4368C 0.1 copies. Mix PC, PBAT and ADR-4368C evenly, feed through the hopper in the first section of the twin-screw extruder, melt extrusion, and cut the strands after cooling in a water bath. The screw speed is 200r / min, and the feeding speed is 1kg. / h, the temperature of each section of the extruder is 180-220 °C. The collected particles were dried at 85 °C for 4 h, and then packaged for use.

Embodiment 2

[0068] Weigh each raw material according to the following proportions: PC SABIC HF1130 is 80 parts by mass, PBAT BASF BX7011 is 20 parts by mass, BASF ADR-4368C 0.1 copies. Mix PC, PBAT and ADR-4368C evenly, feed through the hopper in the first section of the twin-screw extruder, melt extrusion, and cut the strands after cooling in a water bath. The screw speed is 200r / min, and the feeding speed is 1kg. / h, the temperature of each section of the extruder is 180-220 °C. The collected particles were dried at 85 °C for 4 h, and then packaged for use.

Embodiment 3

[0070] Weigh each raw material according to the following proportions: PC SABIC HF1130 is 80 parts by mass, PBST is 20 parts by mass, BASF ADR-4368C 0.1 copies. Combine PC, PBST and

[0071] ADR-4368C is mixed evenly, fed through a hopper in the first stage of the twin-screw extruder, melted and extruded, the strands are cooled in a water bath and then cut into pellets. The screw speed is 200r / min, the feeding speed is 1kg / h, and the extrusion The temperature of each section of the machine is 180-220℃. The collected particles were dried at 85 °C for 4 h, and then packaged for use.

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Abstract

The invention relates to a modified polycarbonate / aliphatic aromatic copolyester composition with high light transmittance and low yellowness value for 3D printing and its preparation method and application, which mainly solves the problem of reducing the print head in the prior art The problem of low light transmittance and high yellowness value of the modified polycarbonate material for 3D printing prepared at the temperature of the base plate, by using a modified polycarbonate / aliphatic aromatic copolyester composition, in parts by mass Count, including the following components: (1) 50 to 99 parts of polycarbonate; (2) 1 to 50 parts of aliphatic aromatic copolyester; (3) technical scheme of 0.005 to 0.25 parts of chain extender , solves this problem better, and can be used in the industrial production of materials with high light transmittance and low yellowness value for 3D printing.

Description

technical field [0001] The invention belongs to the field of 3D printing materials, and particularly relates to a modified polycarbonate / aliphatic aromatic copolyester composition for 3D printing light transmittance and low yellowness value, and a preparation method and application thereof. [0002] technical background [0003] 3D printing, also known as rapid prototyping technology, is a type of additive manufacturing. The principle is to first obtain a digital three-dimensional model through computer modeling or direct scanning of the prototype, and then use software to cut into two-dimensional cross-section data according to a certain coordinate axis. A 3D printer's method of printing layers by layer to form a solid. After nearly 30 years of development, 3D printing technology has been recognized as one of the core technologies that may change the way of laboratory and industrial production. This additive manufacturing technology can save materials, shorten the developme...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L69/00C08L67/02B33Y70/00
CPCC08L69/00B33Y70/00C08L67/02
Inventor 王洪学申长江白瑜
Owner CHINA PETROLEUM & CHEM CORP