CN112980103A - SAN resin powder material based on selective laser sintering and preparation method thereof - Google Patents
SAN resin powder material based on selective laser sintering and preparation method thereof Download PDFInfo
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- CN112980103A CN112980103A CN201911286791.8A CN201911286791A CN112980103A CN 112980103 A CN112980103 A CN 112980103A CN 201911286791 A CN201911286791 A CN 201911286791A CN 112980103 A CN112980103 A CN 112980103A
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- resin powder
- san resin
- powder material
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- laser sintering
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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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
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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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/13—Phenols; Phenolates
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/13—Phenols; Phenolates
- C08K5/132—Phenols containing keto groups, e.g. benzophenones
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2206—Oxides; Hydroxides of metals of calcium, strontium or barium
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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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
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
Abstract
The invention discloses a SAN resin powder material based on selective laser sintering, which belongs to the technical field of SLS high polymer materials and comprises the following components: SAN resin, flow additive, light absorbent and antioxidant, adopt SAN resin powder as SLS amorphous high molecular material, through adding specific flow additive, light absorbent and antioxidant, form the SLS products with higher intensity, SAN resin powder material based on selective laser sintering that this method provided, in SLS high molecular material field, have wide development prospect.
Description
Technical Field
The invention relates to the technical field of SLS high polymer materials, in particular to a SAN resin powder material based on selective laser sintering and a preparation method thereof.
Background
The Selective Laser Sintering (SLS) technology is a high and new technology developed in the nineties of the last century, and integrates new achievements in the fields of modern numerical control technology, CAD/CAM technology, Laser technology, new materials and the like. Wherein the polymer material is selected from the most widely used materials for selective laser sintering, such as polycarbonatePC, ABS plastic, PP, PS and the like can be applied to the industries of manufacturing moulds, artworks and the like. The biggest problem of the polymer material is low strength, which limits the application field. For general purpose PS, the molecular weight is low (average molecular weight is generally 1X 10)5-4×105) The material is used as an SLS material, has low strength and limited application field. In order to further improve the performance of SLS products, and to improve the strength and forming effect thereof, high-strength polymer materials are required.
The amorphous polymer powder material commonly used in SLS technology at present is Polystyrene (PS) powder, and the material is characterized by low price and easy acquisition and can be widely applied to industries such as mold and artwork manufacturing; but has the disadvantage of a weak strength of the forming material.
Disclosure of Invention
The invention aims to provide a SAN resin powder material based on selective laser sintering, which is an amorphous high polymer material with higher molecular weight (Mn is 6 multiplied by 10)6) The method is used for selective laser sintering, has simple process control and higher strength of a formed sample compared with PS, and is a high polymer material for SLS with wide development prospect.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the invention provides a SAN resin powder material based on selective laser sintering, which comprises the following components: SAN resin, a flow aid, a light absorber and an antioxidant.
The scheme further comprises the following components in parts by weight:
the scheme further comprises the following components in parts by weight:
in a further scheme of the above scheme, the flow aid is one or more selected from nano calcium oxide, nano aluminum oxide and nano silicon dioxide.
In a further aspect of the above embodiment, the light absorber is one or more of benzophenones, benzotriazoles, and hindered amines.
In a further aspect of the above embodiment, the benzophenone-based light absorber includes 2, 4-dihydroxybenzophenone, 2-dihydroxy-4-methoxybenzophenone, and 2-hydroxy-4-octoxybenzophenone.
In a further aspect of the above embodiment, the antioxidant is a hindered phenol antioxidant.
In a further embodiment of the above aspect, the hindered phenol antioxidant is one or more selected from the group consisting of p-hydroxyanisole, hydroquinone, 2, 6-di-tert-butyl-p-cresol, 1,3, 5-trimethyl-2, 4, 6-tris (3, 5-di-tert-butyl-4-hydroxybenzyl) benzene, and 2, 2' -bis (4-methyl-6-tert-butyl-phenol) methane.
In addition, the invention also provides a method for preparing the SAN resin powder material, which comprises the following steps: adding SAN resin powder into a mixing stirrer, adding a flow assistant, a light absorbent and an antioxidant, uniformly stirring, and passing through a 120-mesh sieve to obtain the SAN resin powder material based on selective laser sintering.
Compared with the prior art, the technical scheme of the invention has the following advantages and beneficial effects: the invention provides a SAN resin powder material based on selective laser sintering, which comprises the following components: SAN resin, flow additive, light absorbent and antioxidant, adopt SAN resin powder as SLS amorphous high molecular material, through adding specific flow additive, light absorbent and antioxidant, form the SLS products with higher intensity, SAN resin powder material based on selective laser sintering that this method provided, in SLS high molecular material field, have wide development prospect.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Weighing 18Kg of SAN resin powder, 500g of nano silicon dioxide, 500g of nano calcium oxide, 600g of 2, 4-dihydroxy benzophenone and 400g of hydroquinone, putting into a mixing stirrer, uniformly stirring, and sieving with a 120-mesh sieve to obtain the SAN resin powder material selectively sintered by laser;
forming the obtained SAN resin powder material on an SLS forming device AMA600, wherein the preparation process parameters are as follows: the laser power is 50W, the scanning speed is 1800mm/s, the sintering distance is 0.1mm, the thickness of a sintering layer is 0.1mm, and the preheating temperature is 170 ℃; the resulting SLS moldings were subjected to performance testing according to ASTM standards.
The test results were as follows: izod impact Strength 107J.m-1Yield strength 24.7MPa, breaking strength 31MPa, and Vicat temperature 103 ℃.
Example 2
Weighing 18Kg of SAN resin powder, 1200g of nano calcium oxide, 300g of 2, 4-dihydroxybenzophenone, 300g of 2-dihydroxy-4-methoxybenzophenone and 200g of 2, 6-di-tert-butyl-p-cresol, putting into a mixing stirrer, uniformly stirring, and sieving with a 120-mesh sieve to obtain the SAN resin powder material selectively sintered by laser.
Forming the obtained SAN resin powder material on an SLS forming device AMA600, wherein the preparation process parameters are as follows: the laser power is 50W, the scanning speed is 1800mm/s, the sintering distance is 0.1mm, the thickness of a sintering layer is 0.1mm, and the preheating temperature is 170 ℃; carrying out performance test on the SLS formed piece according to an ASTM standard;
the test results were as follows: izod impact Strength 104J.m-1Yield strength of 27.1MPa, breaking strength of 34MPa and Vicat temperature of 106 ℃.
Example 3
Weighing 18.4Kg of SAN resin powder, 800g of nano calcium oxide, 200g of nano aluminum oxide, 500g of 2-dihydroxy-4-methoxy benzophenone and 100g of 2, 6-di-tert-butyl-p-cresol, putting into a mixing stirrer, uniformly stirring, and sieving with a 120-mesh sieve to obtain the SAN resin powder material selectively sintered by laser.
Forming the obtained SAN resin powder material on an SLS forming device AMA600, wherein the preparation process parameters are as follows: the laser power is 50W, the scanning speed is 1800mm/s, the sintering distance is 0.1mm, the thickness of a sintering layer is 0.1mm, and the preheating temperature is 170 ℃; the resulting SLS moldings were subjected to performance testing according to ASTM standards.
The test results were as follows: izod impact Strength 114J.m-1Yield strength 29.7MPa, breaking strength 40MPa, and Vicat temperature 107 ℃.
Example 4
Weighing 18.6Kg of SAN resin powder, 600g of nano silicon dioxide, 400g of nano aluminum dioxide, 150g of 2, 4-dihydroxybenzophenone, 150g of 2-hydroxy-4-octoxybenzophenone and 100g of 2, 6-di-tert-butyl-p-cresol, putting into a mixing stirrer, stirring uniformly, and sieving with a 120-mesh sieve. Then the SAN resin powder material sintered by selective laser is obtained.
Forming the obtained SAN resin powder material on an SLS forming device AMA600, wherein the preparation process parameters are as follows: the laser power is 50W, the scanning speed is 1800mm/s, the sintering distance is 0.1mm, the thickness of a sintering layer is 0.1mm, and the preheating temperature is 170 ℃; the resulting SLS moldings were subjected to performance testing according to ASTM standards.
The test results were as follows: izod impact Strength 105J.m-1Yield strength of 26.8MPa, breaking strength of 35.1MPa and Vicat temperature of 110 ℃.
Example 5
Weighing 18Kg of SAN resin powder, 1200g of nano-silica, 700g of 2-dihydroxy-4-methoxybenzophenone and 100g of 2, 6-di-tert-butyl-p-cresol, putting into a mixing stirrer, stirring uniformly, and sieving with a 120-mesh sieve. Then the SAN resin powder material sintered by selective laser is obtained.
Forming the obtained SAN resin powder material on an SLS forming device AMA600, wherein the preparation process parameters are as follows: the laser power is 50W, the scanning speed is 1800mm/s, the sintering distance is 0.1mm, the thickness of a sintering layer is 0.1mm, and the preheating temperature is 170 ℃; the resulting SLS moldings were subjected to performance testing according to ASTM standards.
The test results were as follows: the cantilever beam impact strength is 125J.m-1, the yield strength is 32.4MPa, the breaking strength is 37.5MPa, and the Vicat temperature is 106 ℃.
Example 6
Weighing 17Kg of SAN resin powder, 700g of nano silicon dioxide, 500g of nano calcium oxide, 1000g of 2, 4-dihydroxybenzophenone, 400g of hydroquinone and 400g of 2, 6-di-tert-butyl-p-cresol, putting into a mixing stirrer, uniformly stirring, and sieving with a 120-mesh sieve to obtain the SAN resin powder material selectively sintered by laser;
forming the obtained SAN resin powder material on an SLS forming device AMA600, wherein the preparation process parameters are as follows: the laser power is 50W, the scanning speed is 1800mm/s, the sintering distance is 0.1mm, the thickness of a sintering layer is 0.1mm, and the preheating temperature is 170 ℃; the resulting SLS moldings were subjected to performance testing according to ASTM standards.
The test results were as follows: izod impact Strength 104J.m-1Yield strength of 26.5MPa, breaking strength of 34.9MPa and Vicat temperature of 105 ℃.
Example 7
Weighing 19.2Kg of SAN resin powder, 500g of nano calcium oxide, 200g of 2, 4-dihydroxy benzophenone and 100g of hydroquinone, putting into a mixing stirrer, uniformly stirring, and sieving with a 120-mesh sieve to obtain the SAN resin powder material selectively sintered by laser;
forming the obtained SAN resin powder material on an SLS forming device AMA600, wherein the preparation process parameters are as follows: the laser power is 50W, the scanning speed is 1800mm/s, the sintering distance is 0.1mm, the thickness of a sintering layer is 0.1mm, and the preheating temperature is 170 ℃; the resulting SLS moldings were subjected to performance testing according to ASTM standards.
The test results were as follows: izod impact Strength 106J.m-1Yield strength of 27.1MPa, breaking strength of 35.1MPa and Vicat temperature of 104 ℃.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. A SAN resin powder material based on selective laser sintering is characterized by comprising the following components: SAN resin, a flow aid, a light absorber and an antioxidant.
2. The SAN resin powder material based on selective laser sintering of claim 1, wherein the components are in parts by weight as follows:
3. the SAN resin powder material based on selective laser sintering of claim 2, wherein the components are in parts by weight as follows:
4. the selective laser sintering-based SAN resin powder material according to any one of claims 1 to 3, wherein the flow aid is selected from one or more of nano-calcium oxide, nano-aluminum oxide, and nano-silicon dioxide.
5. The SAN resin powder material based on selective laser sintering of any one of claims 1 to 3, wherein the light absorber is one or more of benzophenones, benzotriazoles and hindered amines.
6. The SAN resin powder material based on selective laser sintering of claim 5, wherein the benzophenone-based light absorbers comprise 2, 4-dihydroxybenzophenone, 2-dihydroxy-4-methoxybenzophenone and 2-hydroxy-4-octoxybenzophenone.
7. The SAN resin powder material based on selective laser sintering of any one of claims 1 to 3, wherein the antioxidant is a hindered phenolic antioxidant.
8. The SAN resin powder material based on selective laser sintering of claim 7, wherein the hindered phenolic antioxidant is selected from one or more of the group consisting of p-hydroxyanisole, hydroquinone, 2, 6-di-t-butyl-p-cresol, 1,3, 5-trimethyl-2, 4, 6-tris (3, 5-di-t-butyl-4-hydroxybenzyl) benzene, 2' -bis (4-methyl-6-t-butyl-phenol) methane.
9. A method of preparing the SAN resin powder material of any one of claims 1-8, comprising the steps of: adding SAN resin powder into a mixing stirrer, adding a flow assistant, a light absorbent and an antioxidant, uniformly stirring, and passing through a 120-mesh sieve to obtain the SAN resin powder material based on selective laser sintering.
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| CN201911286791.8A CN112980103A (en) | 2019-12-14 | 2019-12-14 | SAN resin powder material based on selective laser sintering and preparation method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101319075A (en) * | 2008-06-13 | 2008-12-10 | 华中科技大学 | Copolymer based powdered material for selective laser sintering and preparation method thereof |
| CN102372918A (en) * | 2010-08-12 | 2012-03-14 | 湖南华曙高科技有限责任公司 | Nylon/aluminum powder composite powdery material based on selective laser sintering |
| CN103709737A (en) * | 2013-12-05 | 2014-04-09 | 吴江中瑞机电科技有限公司 | High-molecular composite powder material for SLS and preparation method therefor |
| CN109790356A (en) * | 2016-09-08 | 2019-05-21 | 英力士苯领集团股份公司 | Powders of thermoplastic polymers for selective laser sintering (SLS) |
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2019
- 2019-12-14 CN CN201911286791.8A patent/CN112980103A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101319075A (en) * | 2008-06-13 | 2008-12-10 | 华中科技大学 | Copolymer based powdered material for selective laser sintering and preparation method thereof |
| CN102372918A (en) * | 2010-08-12 | 2012-03-14 | 湖南华曙高科技有限责任公司 | Nylon/aluminum powder composite powdery material based on selective laser sintering |
| CN103709737A (en) * | 2013-12-05 | 2014-04-09 | 吴江中瑞机电科技有限公司 | High-molecular composite powder material for SLS and preparation method therefor |
| CN109790356A (en) * | 2016-09-08 | 2019-05-21 | 英力士苯领集团股份公司 | Powders of thermoplastic polymers for selective laser sintering (SLS) |
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Application publication date: 20210618 |