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
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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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