CN117384475A - PC-ABS alloy material for FDM printing and preparation method thereof - Google Patents

PC-ABS alloy material for FDM printing and preparation method thereof Download PDF

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Publication number
CN117384475A
CN117384475A CN202311513507.2A CN202311513507A CN117384475A CN 117384475 A CN117384475 A CN 117384475A CN 202311513507 A CN202311513507 A CN 202311513507A CN 117384475 A CN117384475 A CN 117384475A
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China
Prior art keywords
alloy material
parts
abs alloy
fdm printing
abs
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CN202311513507.2A
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Chinese (zh)
Inventor
陈荣
李攀
王晓
张永超
周勇
郭言朝
毕晓妹
刘娟
王浩然
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China National Heavy Duty Truck Group Jinan Power Co Ltd
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China National Heavy Duty Truck Group Jinan Power Co Ltd
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Priority to CN202311513507.2A priority Critical patent/CN117384475A/en
Publication of CN117384475A publication Critical patent/CN117384475A/en
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L69/00Compositions of polycarbonates; Compositions of derivatives of polycarbonates
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B33ADDITIVE MANUFACTURING TECHNOLOGY
    • B33YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y70/00Materials specially adapted for additive manufacturing
    • B33Y70/10Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/02Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medicinal Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Ceramic Engineering (AREA)
  • Civil Engineering (AREA)
  • Composite Materials (AREA)
  • Structural Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

The invention belongs to the technical field of additive manufacturing, and discloses a PC-ABS alloy material for FDM printing and a preparation method thereof, wherein the alloy material comprises the following raw materials in percentage by mass: 5-40 parts of ABS particles, 50-80 parts of PC resin, 1-10 parts of siliconized PC,1-8 parts of toughening agent, 0.1-1 part of antioxidant and 0.5-3 parts of compatilizer. The PC-ABS alloy material for FDM printing has the characteristics of low warpage, high impact resistance, low anisotropy, high fluidity, good molding effect and good flame retardant effect.

Description

PC-ABS alloy material for FDM printing and preparation method thereof
Technical Field
The invention belongs to the technical field of additive manufacturing, and relates to a PC-ABS alloy material for FDM printing and a preparation method thereof.
Background
Fused Deposition Modeling (FDM) technology is one of the most widely used 3D printing technologies at present, and the FDM technology does not need traditional die manufacturing, so that the design and production cycle of the product are shortened, and the production cost is reduced. The universal FDM forming equipment takes thermoplastic plastics as raw materials, and the selection of materials applicable to the process is relatively wide. Development and research of new materials while improving and enhancing the properties associated with existing materials is a research hotspot for FDM molding technology in recent years. Since FDM printing relies on fusion and layer-by-layer stacking, the mechanical properties of the whole printed article are anisotropic, and especially the mechanical properties in the perpendicular printing direction are the worst and the differences are the greatest, thus limiting the application thereof in the industrial field.
Polycarbonate/styrene-butadiene-acrylonitrile copolymer (PC/ABS) is an alloy material formed by blending PC and ABS in a certain proportion. The excellent characteristics of the two materials are combined, so that the viscosity of the PC melt is reduced, the processing performance is improved, the tensile strength, impact strength and heat resistance of ABS are improved, and the sensitivity of the thickness change of the product to the influence of internal stress and impact strength is weakened.
The prior FDM modified material technology is mainly concentrated on wires for FDM equipment of a desktop machine, and because the space of the desktop machine is smaller, the environment process control is convenient, the requirement on the material is lower, and the bending resistance of the modified material is also poorer. However, the research on the granular materials suitable for large-scale equipment is relatively less, and the existing PC-ABS alloy granular materials have some problems, such as poor interlayer binding force, easy cracking during printing, large internal stress, serious deformation during printing, poor molding effect and the like.
Disclosure of Invention
In order to solve the problems in the prior art, the invention aims to provide the PC-ABS alloy material for FDM printing and the preparation method thereof, and the PC-ABS alloy material has higher strength and toughness, and can effectively solve the problems of serious deformation, poor forming effect and the like in printing.
The technical scheme adopted by the invention is as follows:
the PC-ABS alloy material for FDM printing comprises the following raw materials in percentage by mass:
5-40 parts of ABS particles, 50-80 parts of PC resin, 1-10 parts of siliconized PC,1-8 parts of toughening agent, 0.1-1 part of antioxidant and 0.5-3 parts of compatilizer.
Preferably, the toughening agent adopts one or more of MBS toughening agents and high rubber powder.
Preferably, the antioxidant adopts one or more of an antioxidant 1076, an antioxidant 1010 and an antioxidant 412S.
Preferably, the compatilizer adopts one or more of ABS-g-MAH, SMA and compatilizer 58816.
The preparation method of the PC-ABS alloy material for FDM printing disclosed by the invention comprises the following steps of:
mixing raw materials of a PC-ABS alloy material for FDM printing into uniform mixed resin;
extruding, cooling and granulating the mixed resin to obtain the PC-ABS alloy material for FDM printing.
Preferably, the raw materials of the PC-ABS alloy material for FDM printing are mixed into a uniform mixed resin, and the mixed resin is mixed by a high-speed mixer.
Preferably, the parameters of the high speed mixer during mixing are as follows: the temperature is 50-150 ℃, the rotating speed is 500-1000r/min, and the mixing time is 5-10min.
Preferably, when the mixed resin is extruded, a twin-screw twin-extruder is used for extrusion.
Preferably, the temperature during extrusion is 180-260 ℃ and the rotating speed is 100-300 r/min.
Preferably, a cooling mode of water cooling and air cooling is adopted in the cooling process.
The invention has the following beneficial effects:
in order to solve the technical problems, the invention improves the traditional PC/ABS material system in formulation, and adds siliconized PC, toughening agent, antioxidant and compatilizer, wherein siliconized PC is also called siliconized polycarbonate (Silicone Polycarbonate, abbreviated as silicoPC) or siloxane PC and silicon PC, and the siliconized PC introduces siloxane groups, thereby increasing the flexibility of molecular chains, having a certain lubrication effect and reducing the internal stress of the material; the compatilizer is added, so that the interface between PC and ABS is improved, the anisotropism is reduced, the interlayer binding force is improved, and the problem of easiness in cracking is solved. In conclusion, the invention solves the problems of large internal stress, easy cracking and serious anisotropy of mechanical properties of printed parts in the FDM printing process.
Detailed Description
The invention will be further illustrated with reference to the following examples.
The invention relates to a PC-ABS alloy material for FDM printing, which comprises the following raw materials in parts by weight: 5-40 parts of ABS particles, 50-80 parts of PC resin, 1-10 parts of siliconized PC,1-8 parts of toughening agent, 0.1-1 part of antioxidant and 0.5-3 parts of compatilizer (SMA styrene grafted maleic anhydride).
In the scheme of the invention, the 2ABS particles are common ABS resin sold in the market. The PC resin is a common PC resin on the market. The antioxidant adopts one or more of antioxidant 1076, antioxidant 1010 and antioxidant 412S. The compatilizer adopts one or more of ABS-g-MAH, SMA and compatilizer 58816.
The invention relates to a preparation method of a PC-ABS alloy material for FDM printing, which comprises the following steps:
step 1: according to the content, the raw materials of the PC-ABS alloy material for FDM printing are added into a high-speed mixer for uniform mixing, and the mixed resin is obtained. The temperature of the high-speed mixer is 50-150 ℃, the rotating speed is 500-1000r/min, and the mixing time is 5-10min.
Step 2: extruding the mixed resin obtained in the step 1 by using a double-screw double-extruder, and granulating by using a granulator after water cooling and air cooling to obtain the PC-ABS alloy material for FDM printing. Wherein the temperature during extrusion is 180-260 ℃ and the rotating speed is 100-300 r/min.
Example 1
The preparation method of the PC-ABS alloy material for FDM printing comprises the following steps in parts by mass:
60 parts of fully dried PC resin particles, 5 parts of siliconized PC, 30 parts of ABS plastic, 0.5 part of antioxidant 1076, 2.5 parts of toughening agent (MBS toughening agent) and 2 parts of compatilizer 58816 are added into a high-speed mixer for uniform mixing, so as to obtain the PC-ABS mixed resin. Wherein the temperature of the high-speed mixer is 20-70 ℃, the rotating speed is 700r/min, and the mixing time is 5min. When extruding by a double-screw double-extruder, the temperature of each section is T 1 =245℃、T 2 =260℃、T 3 =260℃、T 4 =260℃、T 5 =260℃、T 6 =250℃、T 7 =265℃、T 8 =265℃、T 9 Material one can be obtained by extruding at 250 ℃, t10=240 ℃ and screw rotation speed of 350r/min, and granulating with a granulator through water cooling and air cooling. The horizontal mechanical property parameters of the first material are shown in table 1.1, and the vertical mechanical property is shown in table 1.2.
Example 2
The preparation method of the PC-ABS alloy material for FDM printing comprises the following steps in parts by mass:
60 parts of fully dried PC resin particles, 10 parts of siliconized PC, 25 parts of ABS plastic, 0.5 part of antioxidant 412S, 2 parts of toughening agent (MBS) and 2.5 parts of compatilizer ABS-g-MAH are added into a high-speed mixer for uniform mixing, and the PC-ABS mixed resin is obtained. Wherein the temperature of the high-speed mixer is 20-70 ℃, the rotating speed is 700r/min, and the mixing time is 3min. Extruding with double screw extruder at the temperature of T 1 =240℃、T 2 =255℃、T 3 =255℃、T 4 =255℃、T 5 =260℃、T 6 =260℃、T 7 =265℃、T 8 =265℃、T 9 And (3) extruding at the temperature of 250 ℃ and the temperature of T10 = 230 ℃ at the screw rotating speed of 400r/min, and granulating by a granulator after water cooling and air cooling to obtain a material II. The horizontal mechanical property parameters of the second material are shown in table 2.1, and the vertical mechanical property is shown in table 2.2.
Example 3
The preparation method of the PC-ABS alloy material for FDM printing comprises the following steps in parts by mass:
65 parts of fully dried PC resin particles, 1 part of siliconized PC, 28 parts of ABS plastic, 0.5 part of antioxidant 1076, 0.5 part of 1010, 4 parts of toughening agent (high-gel powder) and 1 part of compatilizer SMA are added into a high-speed mixer for uniform mixing, and the PC-ABS mixed resin is obtained. Wherein the temperature of the high-speed mixer is 20-70 ℃, the rotating speed is 700r/min, and the mixing time is 1min. Extruding with double screw extruder at the temperature of T 1 =230℃、T 2 =240℃、T 3 =260℃、T 4 =260℃、T 5 =260℃、T 6 =270℃、T 7 =275℃、T 8 =265℃、T 9 Material three can be obtained by extruding at 255 ℃, t10=235 ℃ and screw rotation speed of 300r/min, and granulating with a granulator through water cooling and air cooling. The horizontal mechanical properties of the third material are shown in Table 3.1, and the vertical mechanical properties are shown in Table 3.2.
Printing test samples of the first material, the second material and the third material by adopting printing equipment respectively, wherein the test samples are divided into two types:
1) And (3) testing the warping rate, printing a single wall with length, width and height of 300mm, 50mm and 150mm, wherein the printing parameters are line width of 4mm, layer thickness of 1.5mm, printing temperature of 230 ℃ and printing speed of 30mm/s, printing in a single wall spiral mode, vertically pressing one end after printing, and measuring the warping amount of the other end by using a feeler gauge.
2) The mechanical property test is divided into 2 types, namely mechanical property along the printing direction and mechanical property along the perpendicular printing direction, a specific model is length multiplied by width multiplied by height multiplied by 220mm, the printing parameter is line width 10mm, layer thickness 3mm, printing temperature 230 ℃ and printing speed 30mm/s, the printed sample is printed in a single-wall spiral mode, the tensile property GB/T1040 and the bending property GB/T9341 are respectively machined according to the size standards along the printing direction and the perpendicular printing direction to remove steps and burrs, and the machined sample is tested according to standard requirements. The experimental results are shown in tables 1.1 to 3.2:
TABLE 1.1
TABLE 1.2
TABLE 2.1
TABLE 2.2
TABLE 3.1
TABLE 3.2
It can be seen that the PC-ABS modified material prepared by the embodiment of the invention has balanced performance in all aspects for the FDM printing process, is more suitable for the FDM printing process than single raw materials, and plays a beneficial role.
From the results of the above examples, it can be seen that the PC-ABS alloy material for FDM printing according to the present invention has the following characteristics: 1. the warp deformation is small; 2. the shock resistance is high; 3. the anisotropy is low.
The above is only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited by this, and any modification made on the basis of the technical scheme according to the technical idea of the present invention falls within the protection scope of the claims of the present invention.

Claims (9)

1. The PC-ABS alloy material for FDM printing is characterized by comprising the following raw materials in percentage by mass:
5-40 parts of ABS particles, 50-80 parts of PC resin, 1-10 parts of siliconized PC,1-8 parts of toughening agent, 0.1-1 part of antioxidant and 0.5-3 parts of compatilizer.
2. The PC-ABS alloy material for FDM printing according to claim 1 wherein the antioxidant is one or more of antioxidant 1076, antioxidant 1010 and antioxidant 412S.
3. The PC-ABS alloy material for FDM printing according to claim 1 wherein the compatibilizer is one or more of ABS-g-MAH, SMA and compatibilizer 58816.
4. The PC-ABS alloy material for FDM printing according to claim 1 wherein the toughening agent is one or more of MBS type toughening agents and high rubber powders.
5. A method for preparing a PC-ABS alloy material for FDM printing as claimed in any one of claims 1 to 4, comprising the steps of:
mixing raw materials of a PC-ABS alloy material for FDM printing into uniform mixed resin;
extruding, cooling and granulating the mixed resin to obtain the PC-ABS alloy material for FDM printing.
6. The method for producing a PC-ABS alloy material for FDM printing according to claim 5, wherein the raw materials of the PC-ABS alloy material for FDM printing are mixed into a uniform mixed resin by a high-speed mixer.
7. The method for preparing a PC-ABS alloy material for FDM printing according to claim 6, wherein the parameters at the time of mixing by the high-speed mixer are as follows: the temperature is 50-150 ℃, the rotating speed is 500-1000r/min, and the mixing time is 5-10min.
8. The method for preparing a PC-ABS alloy material for FDM printing according to claim 5, wherein the mixed resin is extruded by a twin-screw twin-extruder.
9. The method for preparing a PC-ABS alloy material for FDM printing according to claim 8, wherein the temperature during extrusion is 180-260 ℃ and the rotating speed is 100-300 r/min.
CN202311513507.2A 2023-11-14 2023-11-14 PC-ABS alloy material for FDM printing and preparation method thereof Pending CN117384475A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311513507.2A CN117384475A (en) 2023-11-14 2023-11-14 PC-ABS alloy material for FDM printing and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311513507.2A CN117384475A (en) 2023-11-14 2023-11-14 PC-ABS alloy material for FDM printing and preparation method thereof

Publications (1)

Publication Number Publication Date
CN117384475A true CN117384475A (en) 2024-01-12

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