CN107418079A - A kind of glass fibre for SLS and polystyrene composite preparation method - Google Patents
A kind of glass fibre for SLS and polystyrene composite preparation method Download PDFInfo
- Publication number
- CN107418079A CN107418079A CN201710742013.XA CN201710742013A CN107418079A CN 107418079 A CN107418079 A CN 107418079A CN 201710742013 A CN201710742013 A CN 201710742013A CN 107418079 A CN107418079 A CN 107418079A
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- Prior art keywords
- glass fibre
- powder
- sls
- polystyrene
- drying
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE 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
- B33Y70/00—Materials specially adapted for additive manufacturing
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Reinforced Plastic Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses the glass fibre for SLS and polystyrene composite preparation method, comprise the following steps：It is put into drying baker and dries after appropriate glass fibre powder is well mixed with coupling agent solution, the block glass fibre obtained after drying is subjected to ball milling, screening, so as to obtain the glass fibre powder being modified by surface；Above-mentioned be put into simultaneously in high-speed mixer with the Polystyrene powder Jing Guo drying process by the glass fibre powder that surface is modified is well mixed again, mixture sieved again, so as to obtain the glass fibre and polystyrene composite for SLS.Glass fibre and the sintering window of polystyrene composite prepared by the present invention are big, form uniformly and good fluidity, be advantageous to the fluency of SLS technology powderings and improve the precision of shaping, the preparation technology of the powder is simple simultaneously, and cost is relatively low, has a good application prospect.
Description
Technical field
The invention belongs to rapid shaping making material technical field, is related to a kind of glass fibre for SLS and polyphenyl second
Alkene composite powder material preparation method.
Background technology
Selective laser sintering (Selective Laser Sintering, SLS) is that rapid shaping field is most widely used
One of technology, it is based on discrete, accumulation molding thought, and sintered powder material is selectively scanned using laser and is divided
Layer manufacture, successively add up, so as to realize the manufacture of physical model.Material manufacturing technology is different, and it is logical from traditional subtracting for SLS technologies
The summation of material is crossed to manufacture various models and function part.Because SLS technologies are not influenceed by forming part complexity, because
This can efficiently make all kinds of complex products with personalization.
Polystyrene (Polystyrene, PS) is a kind of common engineering plastics, and it is a kind of amorphous of no definite melting point
State polymer, and have relatively low shrinkage factor, this is largely advantageous to the compact dimensions essence for improving SLS technique sintered parts
Degree, but be applied in the past in SLS technologies, it is found that its sintering strength is relatively low, therefore be difficult by pure Polystyrene powder
Material is directly applied in SLS techniques.Glass fibre (Glass fiber, GF) is a kind of inorganic non-metallic material of superior performance
Material, it using glass marble is raw material passes through high temperature melting, wire drawing, reeling, the series of process such as weave cotton cloth are made fiber that it, which is, its
Itself has higher mechanical strength, and price is more cheap, can greatly reduce industrial cost.
Theoretically, glass fibre and polystyrene are prepared into composite powder material, maximizing is by both advantages
Organically combine, further improve the mechanical properties and formed precision of the dusty material in SLS techniques such as polystyrene, while may be used also
Production cost is reduced, there is preferable application prospect.But because the structure between polystyrene and glass fibre and performance are deposited
In larger difference, directly it is modified using the mode of mechanical mixture, effect pole unobvious.
Before the technology of the present invention proposition, SLS glass fibres are main to the preparation method of property polystyrene powder powder material
There is following two, i.e., direct mechanical mixing and double helix extrusion-deep cooling crush method.
(1), direct mechanical mixing is to be formed by directly mixing two kinds of dusty materials using the mode of machinery, but by
Performance and physical property differ greatly between two kinds of materials, therefore the dusty material prepared is difficult to be well mixed, it is difficult to by it
Apply in SLS techniques.
(2), double helix extrusion-deep cooling crush method be two kinds of material moltens are blended first by double screw extruder,
Extruding pelletization, the powder of suitable SLS techniques is then prepared using deep cooling crush, although this method can mix two kinds of materials
Uniformly, but the small particle powder of SLS technological requirements can not be prepared into, and the shape irregular of powder particle, stream
Dynamic property is poor.
The content of the invention
It is an object of the invention to overcome above weak point existing for prior art, there is provided a kind of glass for SLS
Fiber and polystyrene composite preparation method, the present invention are handled the surface of glass fibre using coupling agent,
Then mixed with Polystyrene powder, thus efficiently solve and answered currently used for SLS glass fibre with polystyrene
Close the problems such as dusty material mixing is uneven and mobility is poor.
For realizing that the technical solution of the object of the invention is as described below.
A kind of glass fibre for SLS and polystyrene composite preparation method, comprise the following steps：
1st, selected glass fibre powder is added in coupling agent solution, the matter of glass fibre powder and coupling agent solution
Amount is than being 0.66~0.8:0.2~0.34, the homogeneous mixture of the two is obtained by mechanical mixture, mixture is then placed in baking
Dried in dry case, drying temperature is 120 DEG C, and drying time period is 60~120min；
2nd, the block glass fibre after drying is put into ball mill with 400r/min speed 30~60min of ball milling, will
The glass fibre powder that ball milling obtains is sieved with dusting cover, and be 35 μm~100 μm so as to obtaining particle diameter is modified by surface
Glass fibre powder；
3rd, preprepared Polystyrene powder is put into drying box and processing is dried, drying temperature is 40~60
DEG C, drying time period is 10~30min, and dry Polystyrene powder is put into ball mill with 400r/min speed ball millings afterwards
10~30min；Then obtained Polystyrene powder is sieved with dusting cover and taken, it is 50 μm~200 μm to obtain particle diameter
Polystyrene powder；
4th, glass fibre powder and Polystyrene powder that step 2 and step 3 obtain are put into 1200~1500r/min's
10~20min is mixed in high-speed mixer, so as to obtain the glass fibre and polyphenyl for SLS that mass fraction is 1 ﹕ 4~12
Ethene composite powder material.
In the above-mentioned glass fibre for SLS and polystyrene composite preparation method, described coupling agent is molten
Liquid is the mixed solution of silane coupling agent KH550 and ethanol solution, wherein Silane coupling agent KH550 and absolute ethyl alcohol
Volume ratio is 1 ﹕ 80~120.
In general, by the contemplated above technical scheme of the present invention compared with prior art, mainly possess have it is following
Technological merit：
First, the present invention is by the processing to fiberglass surfacing, and is allowed to realize with Polystyrene powder and is blended, resulting
Glass fibre MPS powder discreteness it is good, form is uniform, is very suitable for SLS skilled industry applications；
2nd, there is good mobility by dusty material made from technical scheme, thus in SLS techniques
Be advantageous to improve the sintering precision and intensity of SLS Sintering Models；
3rd, technical principle of the invention is simple, workable, advantageously reduces SLS glass fibre modified polyphenyl second
The preparation cost of alkene dusty material, has a good application prospect.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below with reference to embodiment to this hair
It is bright to be further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
The basic fundamental solution of the present invention is first to mix appropriate glass fibre powder with coupling agent solution
It is even；It is put into drying baker and carries out drying and processing；The block glass fibre powder obtained after drying is put into ball mill and carried out
Ball-milling treatment, and it is sieved with appropriate dusting cover；By the suitable glass fibre powder of treated particle diameter with passing through
The Polystyrene powder of drying process, which is put into high-speed mixer, to be mixed, and is then sieved and obtains the glass for SLS
Glass fiber and polystyrene composite.
In above technical solution, selected coupling agent solution is that silane coupling agent KH550 and absolute ethyl alcohol are molten
The ratio of the mixed solution of liquid, wherein silane coupler and absolute ethyl alcohol is about 1:100；The particle diameter of selected glass fiber powder
For 35 μm~100 μm, the particle diameter of polystyrene powder powder material is 50 μm~200 μm.
The preferable specific embodiment of the present invention is as follows：
(1), by appropriate silane coupler (KH550) according to 1:100 mass ratio is dissolved in ethanol solution, is used
Glass bar uniform stirring 2min, obtains coupling agent solution；
(2) the glass fibre powder that 200g particle diameters are 75 μm, is weighed to be added in the configured good coupling agent solutions of 85g,
Uniformly it is put into after mixing in drying baker and carries out drying and processing 60min with 120 DEG C of temperature；
(3), the both bulk glasses fiber after drying is ploughed under in ball mill with 400r/min rotating speed ball milling 30min, then
Sieved with dusting cover, choose powder of the average grain diameter at 75 μm or so；
(4) Polystyrene powder for, weighing 1800g particle diameters at 125 μm is put into drying box, and the temperature with 45 DEG C is entered to it
Row drying process 20min, the dry polystyrene powder that processing obtains is put into ball mill to enter with 400r/min speed
Row ball milling 20min, is then sieved by dusting cover, obtains the dry polystyrene powder that particle diameter is 125 μm；
(5), the glass fibre powder and Polystyrene powder of acquisition are put into high-speed mixer with 1500r/min's
Speed uniformly mixes, so as to obtain mass fraction as 1:The 9 glass fibre MPS dusty material for SLS.
Claims (2)
1. a kind of glass fibre for SLS and polystyrene composite preparation method, it is characterised in that including following
Step：
1.1 are added to selected glass fibre powder in coupling agent solution, the quality of glass fibre powder and coupling agent solution
Than for 0.66~0.8:0.2~0.34, the homogeneous mixture of the two is obtained by mechanical mixture, mixture is then placed in drying
Dried in case, drying temperature is 120 DEG C, and drying time period is 60~120min；
1.2 are put into the block glass fibre after drying in ball mill with 400r/min speed 30~60min of ball milling, by ball milling
Obtained glass fibre powder is sieved with dusting cover, so as to obtain the glass being modified by surface that particle diameter is 35 μm~100 μm
Glass fiber dust；
Preprepared Polystyrene powder is put into drying box processing is dried by 1.3, and drying temperature is 40~60 DEG C,
Drying time period is 10~30min, and dry Polystyrene powder is put into ball mill with 400r/min speed ball milling 10 afterwards
~30min；Then obtained Polystyrene powder is sieved with dusting cover and taken, it is 50 μm~200 μm poly- to obtain particle diameter
Styrene powder；
Glass fibre powder and Polystyrene powder that step 1.2 and step 1.3 obtain are put into 1200~1500r/min by 1.4
High-speed mixer in mix 10~20min, so as to obtain glass fibre for SLS that mass fraction is 1 ﹕ 4~12 with gathering
Styrene composite powder material.
2. the glass fibre according to claim 1 for SLS and polystyrene composite preparation method, it is special
Sign is described coupling agent solution for silane coupling agent KH550 and the mixed solution of ethanol solution, and wherein silane is even
The volume ratio for joining agent KH550 and absolute ethyl alcohol is 1 ﹕ 80~120.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710742013.XA CN107418079A (en) | 2017-08-25 | 2017-08-25 | A kind of glass fibre for SLS and polystyrene composite preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710742013.XA CN107418079A (en) | 2017-08-25 | 2017-08-25 | A kind of glass fibre for SLS and polystyrene composite preparation method |
Publications (1)
| Publication Number | Publication Date |
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| CN107418079A true CN107418079A (en) | 2017-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710742013.XA Pending CN107418079A (en) | 2017-08-25 | 2017-08-25 | A kind of glass fibre for SLS and polystyrene composite preparation method |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105524398A (en) * | 2015-12-25 | 2016-04-27 | 成都新柯力化工科技有限公司 | ABS rapid prototyping material used for 3D printing, and preparation method thereof |
| CN106380833A (en) * | 2016-07-06 | 2017-02-08 | 杭州师范大学 | Nylon/styrene-based polymer/filler modified composite powder, and preparation method and application thereof |
-
2017
- 2017-08-25 CN CN201710742013.XA patent/CN107418079A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105524398A (en) * | 2015-12-25 | 2016-04-27 | 成都新柯力化工科技有限公司 | ABS rapid prototyping material used for 3D printing, and preparation method thereof |
| CN106380833A (en) * | 2016-07-06 | 2017-02-08 | 杭州师范大学 | Nylon/styrene-based polymer/filler modified composite powder, and preparation method and application thereof |
Non-Patent Citations (1)
| Title |
|---|
| 杨来侠等: "选择性激光烧结聚苯乙烯/玻璃纤维制件成型精度研究", 《塑料科技》 * |
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Application publication date: 20171201 |