Spherical polyphenylene sulfide powdery material for 3D printing and preparation method of spherical polyphenylene sulfide powdery material

A technology of polyphenylene sulfide and powder materials, applied in the direction of coating, etc., can solve the problems such as the inability to obtain uniformly shaped particles of particles quickly, hinder the application of rapid prototyping of polyphenylene sulfide, and difficult to melt and bond quickly. The effect of melting, high sphericity and low manufacturing cost

Inactive Publication Date: 2016-04-20
CHENDU NEW KELI CHEM SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the material has poor melt fluidity, and it is impossible to quickly obtain a molding material with uniform particles.
[0008] Although the above-mentioned mechanical properties of PPS have been improved, the application of PPS in rapid prototyping is hindered due to the difficulty of rapid melt bonding when used in 3D printing.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] 100 parts of polyphenylene sulfide resin

[0036] Nano mica powder 5 parts

[0037] 1 part epoxy soy

[0038] Silicone powder 5 parts

[0039] 0.5 parts of 1,4-butanediol diacrylate;

[0040] 1) Add polyphenylene sulfide resin, nano-mica powder, epoxy soybean oil, and silicone powder into a coulter mixer at a temperature of 100-110°C in parts by weight, mix at 80r / min for 10min, and then mix Uniform;

[0041] 2) Put the mixture obtained in step 1) into a conical twin-screw extruder, melt it at 260-320°C, extrude and granulate, the screw length-to-diameter ratio of the extruder is 18, compress Ratio (2.5~3.0): 1, barrel temperature: hopper part 260~280°C, barrel front 280~300°C, die head temperature 300~320°C, mold temperature 260~270°C, screw speed 100 ~150r / min;

[0042] 3) Cool the granules obtained in step 2) and pulverize them with a superfine pulverizer, and sieve them in a 100-200 micron sieve

[0043] 4) Send the screened material obtained in step 3) and 1...

Embodiment 2

[0048] 100 parts of polyphenylene sulfide resin

[0049] Nano mica powder 10 parts

[0050] 4 parts sorbitol

[0051] 3 parts silicone powder

[0052] 1 part of polypropylene glycol;

[0053] 1) Add polyphenylene sulfide resin, nano-mica powder, softener and lubricant to the coulter mixer at 100-110°C in parts by weight, mix at 30r / min for 30min, and then mix evenly;

[0054] 2) Put the mixed material obtained in step 1) into a conical twin-screw extruder, melt it at 260-320°C, extrude and granulate, the screw length-to-diameter ratio of the extruder is 20, compress Ratio (2.5~3.0): 1, barrel temperature: hopper part 260~280°C, barrel front 280~300°C, die head temperature 300~320°C, mold temperature 260~270°C, screw speed 100 ~150r / min;

[0055] 3) Cool the granules obtained in step 2) and pulverize them with a superfine pulverizer, and sieve them in a 100-200 micron sieve

[0056] 4) Send the screening material and cross-linking agent obtained in step 3) into the high-s...

Embodiment 3

[0061] 100 parts of polyphenylene sulfide resin

[0062] Nano mica powder 10 parts

[0063] 10 parts of dimethyl sulfoxide

[0064] Silicone powder 5 parts

[0065] 1 part of polypropylene glycol glycidyl ether;

[0066] 1) Add polyphenylene sulfide resin, nano-mica powder, softener and lubricant into a coulter mixer at 100-110°C in parts by weight, mix at 100r / min for 20min, and mix well;

[0067] 2) Put the mixture obtained in step 1) into a conical twin-screw extruder, melt it at 260-320°C, extrude and granulate, the screw length-to-diameter ratio of the extruder is 18, compress Ratio (2.5~3.0): 1, barrel temperature: hopper part 260~280°C, barrel front 280~300°C, die head temperature 300~320°C, mold temperature 260~270°C, screw speed 100 ~150r / min;

[0068] 3) Cool the granules obtained in step 2) and pulverize them with a superfine pulverizer, and sieve them in a 100-200 micron sieve

[0069] 4) Send the sieved material and part of the cross-linking agent obtained i...

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Abstract

The invention provides a spherical polyphenylene sulfide powdery material for 3D printing. According to the material, nano mica powder is dispersed in polyphenylene sulfide and has quick meltbility and flowability. The invention further provides a preparation method of the spherical polyphenylene sulfide powdery material for 3D printing. The spherical polyphenylene sulfide powdery material with high sphericity is obtained through crushing and spheroidizing. Powdery polyphenylene sulfide is subjected to surface softening and pelletizing through high-temperature air flow under the action of a crosslinking agent, and the spherical polyphenylene sulfide powdery material with high sphericity is obtained. With the introduction of nano mica powder, the spherical polyphenylene sulfide material can be quickly and uniformly heated and melted and is suitable for the field of quick forming during 3D printing.

Description

technical field [0001] The invention relates to the field of rapid prototyping polymer materials, in particular to a spherical polyphenylene sulfide powder material for 3D printing and a preparation method thereof. Background technique [0002] Rapid prototyping technology, also known as rapid prototyping manufacturing (RPM) technology, was born in the late 1980s. It is a high-tech manufacturing technology based on material accumulation method and is considered to be a major achievement in the manufacturing field in the past 20 years. It integrates mechanical engineering, CAD, reverse engineering technology, layered manufacturing technology, numerical control technology, material science, and laser technology, and can automatically, directly, quickly and accurately transform design ideas into prototypes with certain functions or directly manufacture parts , so as to provide a high-efficiency and low-cost realization means for parts prototype production and verification of ne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L81/02C08L83/04C08L71/02C08L91/00C08K3/34C08K5/053C08K5/41B29B9/06B29B9/12B29B9/16
CPCC08L81/02B29B9/06B29B9/12B29B9/16C08K2201/003C08K2201/011C08L2205/03C08L83/04C08L91/00C08K3/34C08L71/02C08K5/053C08K5/41
Inventor 陈庆叶任海陈兵
Owner CHENDU NEW KELI CHEM SCI CO LTD
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