A kind of preparation method of copolyester and the application of obtained copolyester in 3D printing

A 3D printing, copolyester technology, applied in the application field of copolyester materials in 3D printing, can solve the problems of high water absorption, difficult 3D printing, easy degradation, etc., to avoid degradation and energy consumption problems, sample size The effect of small deviation and low printing temperature
CN105566616BActive Publication Date: 2018-09-21CHINA PETROLEUM & CHEM CORP +1
6 Cites 2 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEM CORP
Publication Date
2018-09-21

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The present invention provides a copolyester preparation method comprising successive esterification and polycondensation of a dihydric alcohol, a fatty diacid and two or more aromatic diacid in the presence of a catalyst for preparation of an amorphous copolyester. The present invention also provides a method for using the copolyester material for preparation of a wire material and application of the wire material in 3D printing. The printing temperature of the wire material used in fused deposition method 3D printing is low, an obtained product is small in size deviation, and sample shrinkage rate is low.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a preparation method of copolyester and the application of the copolyester material prepared by the method in 3D printing. Background technique

[0002] 3D printing technology mainly includes stereolithography appearance (SLA), fused deposition modeling (Fused Deposition Modeling, FDM), selective laser sintering (selective laser sintering, SLS) and other processes. Among them, the fused deposition modeling technology needs to thin the 3D model, melt the material into a liquid state at high temperature, and then extrude small spherical particles through the nozzle. These particles solidify immediately after being sprayed out. The permutations and combinations form real objects. This technology has higher molding precision, higher molding strength, and can be colored molding, but the surface is rough after molding. At present, the main 3D printing materials mainly include ABS, PC, polylactic acid, polystyrene, etc., and the mat...

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