ASA 3D printing wire with low warpage at low temperature and preparation method thereof

A printing wire, low warpage technology, applied in the direction of additive processing, etc., can solve the problems of interlayer stress cracking, cracked material toughness, reduce nozzle life and other problems, achieve the effect of reducing energy consumption, excellent molding performance, and improving safety.

Pending Publication Date: 2019-10-15
LIMING VOCATIONAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Chinese patent CN104448598A discloses an ASA 3D printing composite material prepared by adding inorganic powder and bamboo powder. This patent improves and optimizes the quality stability of the material and the fluidity of the molding process by adding inorganic powder and bamboo powder, while reducing the Nozzle printing temperature, but the patent does not take into account the possible disadvantages of adding inorganic materials, such as cracked material toughness, interlayer stress cracking, reduced nozzle life, etc.; at the same time, the patent does not address shrinkage warping An effective solution, not to mention printing and molding at a lower base temperature without shrinkage and warping

Method used

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  • ASA 3D printing wire with low warpage at low temperature and preparation method thereof
  • ASA 3D printing wire with low warpage at low temperature and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A low-temperature and low-warpage ASA 3D printing wire, the components are: ASA resin 60%, wherein the content of acrylate rubber in ASA resin is 42%, EMA-aramid pulp compound 25%, Solvent (E-BA-GMA) 8%, terpene resin 5%, 1010 antioxidant 1%, paraffin oil 1%.

[0036] Its preparation method comprises the following steps:

[0037] A. EMA and aramid pulp are vacuum-dried respectively;

[0038] B. Accurately weigh the EMA and aramid pulp dried in step A according to a mass ratio of 1:1, then place the weighed components in a high-speed kneader and mix them uniformly to obtain a mixture;

[0039] C. Mix the mixture in step B with a continuous mixer to obtain an EMA-aramid pulp compound. The mixing temperature is 95° C., the extrusion temperature is 150° C., and the screw speed is 40 rpm.

[0040] D. ASA, EMA-aramid pulp compound, E-BA-GMA, terpene resin and antioxidant 1010 are vacuum-dried respectively;

[0041] E. Accurately weigh the various resins and paraffin oil af...

Embodiment 2

[0046] A low-temperature and low-warpage ASA 3D printing wire, the components are calculated by weight percentage: ASA resin 65% (of which acrylate rubber content in ASA resin is 55%), TPU-aramid pulp compound 24.5%, benzene Ethylene-acrylonitrile-glycidyl methacrylate (SAG) 6%, tackifier C5 petroleum resin 3%, 168 antioxidant 0.5%, paraffin oil 1.0%.

[0047] Its preparation method comprises the following steps:

[0048] A. Vacuum dry the TPU and aramid pulp respectively;

[0049] B. Accurately weigh the TPU and aramid pulp dried in step A according to the mass ratio of 0.8:1, then place the weighed components in a high-speed kneader and mix them uniformly to obtain a mixture;

[0050] C. Mix the mixture in step B with a continuous mixer to obtain a TPU-aramid pulp compound. The mixing temperature is 100° C., the extrusion temperature is 160° C., and the screw speed is 42 rpm.

[0051] D. ASA, TPU-aramid pulp compound, SAG, C5 resin and 168 antioxidant are vacuum-dried resp...

Embodiment 3

[0057] A low temperature and low warpage ASA 3D printing wire, the components are calculated by weight percentage: ASA resin 55.7% (the content of acrylate rubber in ASA resin is 42%), EEA-aramid pulp compound 32, SGMA 7, Rosin resin 4, 1076 antioxidant 0.5, paraffin oil 0.8.

[0058] Its preparation method comprises the following steps:

[0059] A. EEA and aramid pulp are vacuum-dried respectively;

[0060] B. Accurately weigh the EEA and aramid pulp dried in step A according to the mass ratio of 2.5:1, then place the weighed components in a high-speed kneader and mix them uniformly to obtain a mixture;

[0061] C. Mix the mixture in step B with a continuous mixer to obtain the EEA-aramid pulp compound. The mixing temperature is 95° C., the extrusion temperature is 165° C., and the screw speed is 55 rpm.

[0062] D. ASA resin, EEA-aramid pulp compound, SGMA, rosin resin and antioxidant 1076 are vacuum-dried respectively;

[0063] E. Accurately weigh the various resins and ...

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Abstract

The invention relates to an ASA 3D printing wire with low warpage at low temperature and a preparation method thereof. According to the method, the ASA 3D printing wire with the low warpage at low temperature is prepared by taking 55-70 parts of ASA resin as a raw material adding 20-35 parts of an elastomer-aramid pulp composite, 3-12 parts of a compatibilizer, 3-8 parts of a tackifier, 0.2-1 partof an antioxidant and 0.2-1 part of paraffin oil through drying and dehumidifying, material mixing, melting blending, extrusion molding and traction winding. The wire rod does not generate shrinkageand warpage when molded under the condition of lower bottom plate temperature, has excellent mechanical property, good bonding property and excellent weather resistance, and has wide application fieldand high application value.

Description

technical field [0001] The invention relates to an ASA 3D printing wire material with low temperature and low warpage and a preparation method thereof. Background technique [0002] Additive manufacturing, also known as 3D printing, is a new manufacturing technology that integrates digital software, machinery and materials. It is characterized by material accumulation and forming, and is widely used in medical, education, military and other fields. As one of the mainstream technologies of 3D printing, fused deposition modeling has attracted people's attention due to its low cost, low temperature molding, and safe operation. [0003] The resin is a block copolymer obtained by polymerization of styrene, acrylonitrile and acrylate rubber. This material not only has excellent processing properties, mechanical properties and chemical corrosion resistance, but also has good weather resistance. However, in the fused deposition molding process of ASA resin, due to the open molding...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L51/04C08L77/10C08L23/08C08L75/04C08L25/14C08L93/04C08L45/00C08L45/02C08L57/02C08K5/134C08K5/526B33Y70/00
CPCB33Y70/00C08L51/04C08L2205/035C08L2205/16C08L77/10C08L23/0869C08L75/04C08L25/14C08L93/04C08L45/00C08L45/02C08L57/02C08K5/1345C08K5/526
Inventor 林鸿裕黄欣茹张青海汪扬涛曾安蓉林少芬
Owner LIMING VOCATIONAL UNIV
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