Polyvinyl alcohol wire for fused deposition molding and processing method of polyvinyl alcohol wire

A fused deposition molding and polyvinyl alcohol technology, which is applied in the field of fused deposition molding polyvinyl alcohol wire and its processing, can solve the problem that the performance of the wire cannot fully meet the requirements of the FDM process, the melt processing performance is not obvious, and the material fluidity is not enough Good and other problems, to achieve the effect of good melt processing performance, low cost, and good processing fluidity

Active Publication Date: 2015-03-25
GUANGDONG SILVER AGE SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The second is that the melt viscosity should not be too large, otherwise the melt index of the material will become lower, the fluidity will become poor, and the melt will not be extruded from the printer nozzle
[0005] However, the improvement of the melt processing perform

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] A polyvinyl alcohol filament for fused deposition molding, the filament comprising the following raw materials in parts by mass:

[0057] 100 parts of polyvinyl alcohol resin,

[0058] 20 parts of plasticizer,

[0059] Antioxidant 0.5 part,

[0060] Heat stabilizer 5 parts,

[0061] Lubricant 0.2 part,

[0062] Opening agent 0.1 part,

[0063] Wherein, the anti-blocking agent is oleic acid amide.

[0064] A kind of processing method for the polyvinyl alcohol filament material of fused deposition molding, comprises the following steps:

[0065] (1) Add the above components into the high-speed mixer according to the ratio of the raw materials in the formula and mix them together, heat while stirring, set the temperature at 50-90°C, stir and mix for 20-30 minutes and then cool to room temperature;

[0066] (2) Extrude and granulate in a twin-screw extruder, with the temperature controlled between 120°C and 185°C;

[0067] (3) Extrude the drawn wire in a single-screw...

Embodiment 2

[0071] A polyvinyl alcohol filament for fused deposition molding, the filament comprising the following raw materials in parts by mass:

[0072] 100 parts of polyvinyl alcohol resin,

[0073] 25 parts of plasticizer,

[0074] Antioxidant 0.8 part,

[0075] 6 parts heat stabilizer,

[0076] Lubricant 0.4 parts,

[0077] Opening agent 0.2 part,

[0078] Wherein, the opening agent is erucamide.

[0079] The polyvinyl alcohol filament for fused deposition molding, the PVA resin is a composition of PVA0588 and PVA1788 in a mass ratio of 1:2. The plasticizer is a composite plasticizer composed of triethyl citrate and PEG in a mass ratio of 1:2. The antioxidant is a composite antioxidant composed of antioxidant 1076 and antioxidant 618 in a mass ratio of 1:1.5. The thermal stabilizer is hydrotalcite. The lubricant is EBS.

[0080] A processing method of a polyvinyl alcohol filament for fused deposition molding in this embodiment is the same as that in Embodiment 1, and will ...

Embodiment 3

[0083] A polyvinyl alcohol filament for fused deposition molding, the filament comprising the following raw materials in parts by mass:

[0084] 100 parts of polyvinyl alcohol resin,

[0085] 30 parts of plasticizer,

[0086] Antioxidant 1 part,

[0087] 7 parts heat stabilizer,

[0088] 0.5 parts of lubricant,

[0089] Opening agent 0.3 part,

[0090] Wherein, the anti-blocking agent is oleic acid amide.

[0091] The polyvinyl alcohol filament material used for fused deposition molding, the PVA resin is PVA205. The plasticizer is a compound plasticizer composed of caprolactam and sorbitol in a mass ratio of 1:3. The antioxidant is a composite antioxidant composed of antioxidant 1098 and antioxidant 626 in a mass ratio of 1:2. Described thermal stabilizer is zinc stearate. The lubricant is a composition composed of polyethylene wax and calcium stearate in a mass ratio of 1:2.

[0092] A processing method of a polyvinyl alcohol filament for fused deposition molding in ...

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Abstract

The invention relates to a preparation method of high polymer materials, and particularly relates to a polyvinyl alcohol wire for fused deposition molding and a processing method of the polyvinyl alcohol wire. The polyvinyl alcohol wire comprises the following raw materials in parts by weight: 100 parts of polyvinyl alcohol resin, 20-40 parts of a plasticizer, 0.5-2 parts of an antioxidant, 5-10 parts of a heat stabilizer, 0.2-1 part of a lubricating agent and 0.1-0.5 part of an anti-blocking agent, wherein the anti-blocking agent is one of oleamide and erucyl amide. The polyvinyl alcohol wire disclosed by the invention has the advantages of high heat stability, good melt processing property, excellent mechanical property, stable wire diameter, good water solubility, simple production process, high efficiency and low cost.

Description

technical field [0001] The invention relates to a manufacturing method of a polymer material, in particular to a polyvinyl alcohol filament material used for fusion deposition molding and a processing method thereof. Background technique [0002] 3D printing technology was born in the late 1980s. It is a high-tech manufacturing technology that integrates modern scientific and technological achievements such as CAD technology, numerical control technology, laser technology and material technology. Fused Deposition Modeling (Fused Deposition Modeling, FDM) technology is a kind of 3D printing technology. Its principle is to layer the molded parts first, and then superimpose them layer by layer from bottom to top. During the layer-by-layer stacking molding process, the cantilever and hollow parts need to be supported, otherwise they will collapse and cannot be formed. The materials used in the FDM process are basically thermoplastics, which are supplied by wire, and the parts c...

Claims

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Application Information

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IPC IPC(8): C08L29/04C08K13/02C08K5/20C08K5/053C08K5/11C08K3/22C08K3/26C08K5/098B29C47/92B29C48/92
Inventor 史玉升汪艳陈卫傅轶闰春泽史云松王雁国魏青松刘洁李晨辉
Owner GUANGDONG SILVER AGE SCI & TECH CO LTD
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