CN115231902A - W型氧化铝支撑碳化硅陶瓷膜及其制备方法 - Google Patents
W型氧化铝支撑碳化硅陶瓷膜及其制备方法 Download PDFInfo
- Publication number
- CN115231902A CN115231902A CN202210809185.5A CN202210809185A CN115231902A CN 115231902 A CN115231902 A CN 115231902A CN 202210809185 A CN202210809185 A CN 202210809185A CN 115231902 A CN115231902 A CN 115231902A
- Authority
- CN
- China
- Prior art keywords
- temperature
- ceramic membrane
- sintering
- silicon carbide
- alumina
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000012528 membrane Substances 0.000 title claims abstract description 64
- 239000000919 ceramic Substances 0.000 title claims abstract description 50
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 229910010271 silicon carbide Inorganic materials 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title claims abstract description 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 39
- 238000005245 sintering Methods 0.000 claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000000843 powder Substances 0.000 claims description 17
- 238000002156 mixing Methods 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 13
- 238000003756 stirring Methods 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 10
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 9
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 239000008367 deionised water Substances 0.000 claims description 7
- 229910021641 deionized water Inorganic materials 0.000 claims description 7
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 235000019422 polyvinyl alcohol Nutrition 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 5
- 229910003460 diamond Inorganic materials 0.000 claims description 5
- 239000010432 diamond Substances 0.000 claims description 5
- 239000006259 organic additive Substances 0.000 claims description 5
- 238000007598 dipping method Methods 0.000 claims description 4
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 4
- 229920002261 Corn starch Polymers 0.000 claims description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 3
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000008120 corn starch Substances 0.000 claims description 3
- 235000011187 glycerol Nutrition 0.000 claims description 3
- 229910017604 nitric acid Inorganic materials 0.000 claims description 3
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 claims description 3
- 239000002244 precipitate Substances 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 3
- 239000002383 tung oil Substances 0.000 claims description 3
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 3
- XJUNLJFOHNHSAR-UHFFFAOYSA-J zirconium(4+);dicarbonate Chemical compound [Zr+4].[O-]C([O-])=O.[O-]C([O-])=O XJUNLJFOHNHSAR-UHFFFAOYSA-J 0.000 claims description 3
- 230000032683 aging Effects 0.000 claims description 2
- 238000004898 kneading Methods 0.000 claims description 2
- 238000009740 moulding (composite fabrication) Methods 0.000 claims description 2
- 230000007935 neutral effect Effects 0.000 claims description 2
- 230000000630 rising effect Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 2
- 229910010293 ceramic material Inorganic materials 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 4
- 238000012856 packing Methods 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 description 14
- 239000010408 film Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 230000004907 flux Effects 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002431 foraging effect Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000000845 anti-microbial effect Effects 0.000 description 1
- 239000004599 antimicrobial Substances 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- -1 biology Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000009517 secondary packaging Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/64—Burning or sintering processes
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5053—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials non-oxide ceramics
- C04B41/5057—Carbides
- C04B41/5059—Silicon carbide
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/85—Coating or impregnation with inorganic materials
- C04B41/87—Ceramics
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3224—Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
- C04B2235/3225—Yttrium oxide or oxide-forming salts thereof
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3224—Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
- C04B2235/3227—Lanthanum oxide or oxide-forming salts thereof
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3232—Titanium oxides or titanates, e.g. rutile or anatase
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
- C04B2235/442—Carbonates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
- C04B2235/6562—Heating rate
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
- C04B2235/6565—Cooling rate
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
- C04B2235/6567—Treatment time
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/94—Products characterised by their shape
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
本发明涉及W型氧化铝支撑碳化硅陶瓷膜及其制备方法，包括表面几何形状为W型或锯齿形的氧化铝支撑体以及涂覆于氧化铝支撑体表面的碳化硅薄膜。本发明陶瓷膜表面的几何形状为W型(或锯齿形)，在不增加用料和烧结成本，并且在相近的装填密度的情况下，将膜面积增加到2倍；大幅提升了陶瓷膜的亲水性和渗透效率，显著降低包含水处理领域在内的使用陶瓷膜的成本。
Description
技术领域
本发明属于无机膜领域，特别涉及W型氧化铝支撑碳化硅陶瓷膜及其制备方法。
背景技术
无机膜分离技术的发展始于20世纪四十年代，上世纪60年代后被广泛应用于食品、医药、生物、化工、冶金、能源、石油、水处理等众多领域，现已成为最重要的分离手段之一。
以陶瓷膜为主的无机分离膜具有聚合物分离膜无法比拟的优点，如：化学稳定性好，能耐酸耐碱、耐有机溶剂、无有害物质析出；机械强度高，适用于各种物理清洗；抗微生物能力强，不与微生物发生作用；亲水性好，分离效率高等。并属于环境友好型材料。
形状上，国内外生产的陶瓷分离膜多为管式陶瓷膜和平板陶瓷膜。管式陶瓷膜的短板是：装填密度低、不易再生、跨膜压差大导致能耗高。这些缺点限制了管式陶瓷膜在更多领域的大面积应用。近年来出现的平板陶瓷膜综合了平板聚合膜和管式陶瓷膜的优点，在包括水处理在内的多个领域得到推广应用。
陶瓷膜的所用的主要材料多以氧化铝、氧化锆、氧化钛、碳化硅为主，从放大后截面的角度观测，一般具有两层或两层以上的非对称性结构，即起分离作用的分离层，和起支撑作用的过渡层和支撑层。支撑层的作用是增加膜的机械强度，须具有较合适的孔径和孔隙率，以增加渗透性。支撑层决定着陶瓷膜的形状和装填形式。分离层也就是膜层，它是通过各种方法负载于支撑层或过渡层上，分离过程主要是在这层薄膜上发生的，分离膜的表面特性对陶瓷膜的分离精度和分离效率起到关键作用。
发明内容
本发明所要解决的技术问题是提供W型氧化铝支撑碳化硅陶瓷膜及其制备方法，该陶瓷膜大幅提升了陶瓷膜的亲水性和渗透效率，显著降低包含水处理领域在内的使用陶瓷膜的成本。
本发明提供了W型氧化铝支撑碳化硅陶瓷膜，包括表面几何形状为W型或锯齿形的氧化铝支撑体以及涂覆于氧化铝支撑体表面的碳化硅薄膜。
所述氧化铝支撑体的内通道为菱形结构。所述菱形结构的横向宽度为500mm以下，底部和顶部的角度为45°-90°，优选为60°。
优选的，所述氧化铝支撑体包括封闭端和通水端；其中，封闭端采用氧化铝一体成型进行封闭。
本发明还提供了W型氧化铝支撑碳化硅陶瓷膜的制备方法，包括：
(1)将10-15份碳酸锆投入600份去离子水加热搅拌，85℃-90℃时缓慢加入1份柠檬酸，恒温30-40小时后停止加热维持搅拌冷却至室温，得到烧结助剂A；
(2)将无机粉料原料加入捏合机中混合，随后加入烧结助剂A混合，得到无机粉料混合料；
(3)将上述无机粉料混合料和有机添加剂混合，进行练泥；随后放入挤出机中经过内通道为菱形结构的模具挤出，挤出后的胚体放在呈W状的铝板上，倾斜20度-40度摆放，自然晾干；(4)将胚体干燥后烧结，得到表面几何形状为W型或锯齿形的氧化铝支撑体(1)；
(5)将10份-15份TiO2粉末混合于300份-450份浓度为10mol/L的氢氧化钠溶液中，经过超声分散10min-30min，移至不超过200℃的恒温烘箱内放置48h；将产生的白色沉淀物用0.1mol/L稀盐酸溶液洗涤5-8次，然后在超声波的辅助下用去离子水清洗至中性；在程序智能控制的电炉中以2-6℃/min升温速率焙烧至700-800℃并保温2h，控制降温速度为2-6℃/min至室温，得到烧结助剂B；
(6)在硝酸溶液中加入碳化硅粉末和上述烧结助剂B，搅拌后再加入PVA粉末，再置于真空装置中搅拌，得到涂膜液；
(7)将步骤(4)得到的表面几何形状为W型或锯齿形的氧化铝支撑体(1)置入涂膜装置中浸浆，用密封胶条将待涂膜的氧化铝支撑体两端通道口密封(防止涂膜液进入通道内表面)，最后烧结，得到W型氧化铝支撑碳化硅陶瓷膜。
所述步骤(1)中的无机粉料原料为质量比2500-3000:400-450:10-20:4-5的纯度大于99.5％的氧化铝、氧化铝、氧化镧、氧化钛、氧化钇。
所述步骤(3)中的有机添加剂为质量比为200:200:70:50的玉米淀粉、PVA、甘油和桐油。
所述步骤(3)中的练泥前先陈腐，具体为：将捏合好的泥料移入温度为25℃、湿度为90％的恒温恒湿密闭空间陈腐24h-36h。
所述步骤(4)中表面几何形状为W型或锯齿形的氧化铝支撑体的一端一体成型烧结封闭。
所述步骤(4)中的烧结工艺参数为：升温速度为2-6℃/min，烧结温度为1300-1800℃，保温2-4小时，降温速度为2-6℃/min。
所述步骤(7)中的烧结工艺参数为：升温速度为2-6℃/min，烧结温度为1050-1150℃，保温2小时，降温速度为2-6℃/min。
有益效果
(1)本发明陶瓷膜表面的几何形状为W型(或锯齿形)，在不增加用料和烧结成本，并且在相近的装填密度的情况下，将膜面积增加到2倍；
(2)本发明陶瓷膜内通道的菱形结构，膜层加支撑层厚度在每个点上都是相等的，即每个点的渗透阻力具有一致性，便于实现膜反洗的均匀性；
(3)本发明陶瓷膜的膜层的材质为碳化硅，由于碳化硅的亲水性优于氧化铝，碳化硅膜层的纯水通量为氧化铝膜层的1.5-3倍；
(4)本发明陶瓷膜孔隙率为30-50％，平均孔径为100nm，大幅提升了陶瓷膜的亲水性，纯水通量为2-3m3·m-2·h-1·bar-1，抗折强度大于35MPa，抗压强度大于80MPa，具有良好的市场应用前景。
(5)本发明的W型(或锯齿形)陶瓷膜纵向抗折强度相较于常见的平板陶瓷膜提高20％-30％。(6)本发明的陶瓷膜单端封闭的结构，减少了二次封装的成本，同时提升了膜的使用可靠性。
附图说明
图1为本发明陶瓷膜支撑体使用的模具；
图2为本发明陶瓷膜支撑体的侧视照片；
图3为本发明陶瓷膜支撑体的照片；
图4为本发明W型氧化铝支撑碳化硅陶瓷膜的示意图；
图5为本发明W型氧化铝支撑碳化硅陶瓷膜的第二种示意图。
具体实施方式
下面结合具体实施例，进一步阐述本发明。应理解，这些实施例仅用于说明本发明而不用于限制本发明的范围。此外应理解，在阅读了本发明讲授的内容之后，本领域技术人员可以对本发明作各种改动或修改，这些等价形式同样落于本申请所附权利要求书所限定的范围。
实施例1
如图4所示，本实施例提供了W型氧化铝支撑碳化硅陶瓷膜，包括表面几何形状为W型或锯齿形的氧化铝支撑体1以及涂覆于氧化铝支撑体表面的碳化硅薄膜2。所述氧化铝支撑体1的内通道5为菱形结构。如图5所示，优选的，所述氧化铝支撑体1包括封闭端3和通水端4；其中，封闭端3采用氧化铝一体成型进行封闭。
本实施例的挤出模具如图1所示，横向宽度可以为270mm，W底部和顶部的角度为60°。(1)将120g碳酸锆投入6L去离子水加热搅拌，90℃时缓慢加入10g柠檬酸，恒温36小时后停止加热维持搅拌冷却至室温，得到烧结助剂A，备用；
(2)将纯度大于99.5％的氧化铝(D50：5μm-10μm)、氧化铝(D50：5μm-10μm)、氧化镧、氧化钛、氧化钇按质量比25000g:4100g:100g:100g:45g加入捏合机中混合1h，随后加入烧结助剂A混合1h，得到无机粉料原料；
(3)将玉米淀粉、PVA、甘油、桐油按质量比2000g:2000g:700g:500g混合，得到有机添加剂；
(4)将步骤(2)中的无机粉料原料和步骤(3)中的有机添加剂混合15分钟，将捏合好的泥料移入温度为25℃、湿度为90％的恒温恒湿密闭空间陈腐24h-36h，随后将陈腐后的泥料移入真空练泥机中，在非真空的条件下混炼练5遍，在0.10MPa的真空度下练泥5遍，然后放入挤出机，经过内通道为菱形结构的模具挤出，挤出后的胚体放在呈W状的铝板上，倾斜20度摆放，自然晾干12h；
(5)将胚体放入烘箱进行干燥，烘箱温度180℃，干燥时间为26小时；烘干后，经检测将合格的胚体放入隧道窑或梭式窑炉中烧结，升温速度为3℃/min，烧结温度为1500℃，保温2小时，控制降温速度为3℃/min，至室温后经检测，得到表面几何形状为W型或锯齿形的氧化铝支撑体1，如图2所示；
(6)将100gTiO2粉末(D50:25nm-50nm)混合于3000g浓度为10mol/L的氢氧化钠溶液中，经过超声分散10min-30min，移至不超过200℃的恒温烘箱内放置48h。将产生的白色沉淀物用0.1mol/L稀盐酸溶液洗涤5-8次，然后在超声波的辅助下用去离子水清洗至中性。在程序智能控制的电炉中以3℃/min升温速率焙烧至700℃并保温2h，控制降温速度为3℃/min至室温，得到烧结助剂B。
(7)将10g1N硝酸投入1000g去离子水中，低速搅拌5分钟后，缓慢加入95g碳化硅(D50：0.4μm-1μm)粉体和5g烧结助剂B，高速搅拌30分钟后，缓慢加入10g PVA粉末，继续搅拌30分钟。置入真空度为0.01MPa真空装置内，低速搅拌30分钟以上，得到涂膜液。
(8)移入浸浆法涂膜装置中，用密封胶条将待涂膜的氧化铝支撑体两端通道口密封，防止涂膜液进入通道内表面，然后置入涂膜装置，浸浆30s。置入不超过200℃的烘箱干燥12h，再将烘干后的陶瓷膜放入隧道窑或梭式窑炉中烧结，升温速度为3℃/min，烧结温度为1100℃，保温2小时，降温速度为3℃/min，降温至300℃后出窑检测后，即可得到氧化铝支撑碳化硅陶瓷膜成品。
本发明陶瓷膜孔隙率为30-50％，平均孔径为100nm，大幅提升了陶瓷膜的亲水性，纯水通量为2-3m3·m-2·h-1·bar-1，抗折强度大于35MPa，抗压强度大于80MPa。
Claims (10)
1.W型氧化铝支撑碳化硅陶瓷膜，其特征在于：包括表面几何形状为W型或锯齿形的氧化铝支撑体(1)以及涂覆于氧化铝支撑体表面的碳化硅薄膜(2)。
2.根据权利要求1所述的陶瓷膜，其特征在于：所述氧化铝支撑体(1)的内通道(5)为菱形结构。
3.根据权利要求2所述的陶瓷膜，其特征在于：所述菱形结构的横向宽度为500mm以下，底部和顶部的角度为45°-90°。
4.根据权利要求1所述的陶瓷膜，其特征在于：所述氧化铝支撑体(1)包括封闭端(3)和通水端(4)；其中，封闭端(3)采用氧化铝一体成型进行封闭。
5.W型氧化铝支撑碳化硅陶瓷膜的制备方法，包括：
(1)将10-15份碳酸锆投入600份去离子水加热搅拌，85℃-90℃时缓慢加入1份柠檬酸，恒温30-40小时后停止加热维持搅拌冷却至室温，得到烧结助剂A；
(2)将无机粉料原料加入捏合机中混合，随后加入烧结助剂A混合，得到无机粉料混合料；
(3)将上述无机粉料混合料和有机添加剂混合，进行练泥；随后放入挤出机中经过内通道为菱形结构的模具挤出，挤出后的胚体放在呈W状的铝板上，倾斜20度-40度摆放，自然晾干；
(4)将胚体干燥后烧结，得到表面几何形状为W型或锯齿形的氧化铝支撑体(1)；
(5)将10份-15份TiO2粉末混合于300份-450份浓度为10mol/L的氢氧化钠溶液中，经过超声分散10min-30min，移至不超过200℃的恒温烘箱内放置48h；将产生的白色沉淀物用0.1mol/L稀盐酸溶液洗涤5-8次，然后在超声波的辅助下用去离子水清洗至中性；在程序智能控制的电炉中以2-6℃/min升温速率焙烧至700-800℃并保温2h，控制降温速度为2-6℃/min至室温，得到烧结助剂B；
(6)在硝酸溶液中加入碳化硅粉末和上述烧结助剂B，搅拌后再加入PVA粉末，再置于真空装置中搅拌，得到涂膜液；
(7)将步骤(4)得到的表面几何形状为W型或锯齿形的氧化铝支撑体(1)置入涂膜装置中浸浆，用密封胶条将待涂膜的氧化铝支撑体两端通道口密封，最后烧结，得到W型氧化铝支撑碳化硅陶瓷膜。
6.根据权利要求5所述的制备方法，其特征在于：所述步骤(1)中的无机粉料原料为质量比2500-3000:400-450:10-20:4-5的纯度大于99.5％的氧化铝、氧化铝、氧化镧、氧化钛、氧化钇；所述步骤(3)中的有机添加剂为质量比为200:200:70:50的玉米淀粉、PVA、甘油和桐油。
7.根据权利要求5所述的制备方法，其特征在于：所述步骤(3)中的练泥前先陈腐。
8.根据权利要求5所述的制备方法，其特征在于：所述步骤(4)中表面几何形状为W型或锯齿形的氧化铝支撑体(1)的一端一体成型烧结封闭。
9.根据权利要求5所述的制备方法，其特征在于：所述步骤(4)中的烧结工艺参数为：升温速度为2-6℃/min，烧结温度为1300-1800℃，保温2-4小时，降温速度为2-6℃/min。
10.根据权利要求5所述的制备方法，其特征在于：所述步骤(7)中的烧结工艺参数为：升温速度为2-6℃/min，烧结温度为1050-1150℃，保温2小时，降温速度为2-6℃/min。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210809185.5A CN115231902B (zh) | 2022-07-10 | 2022-07-10 | W型氧化铝支撑碳化硅陶瓷膜及其制备方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210809185.5A CN115231902B (zh) | 2022-07-10 | 2022-07-10 | W型氧化铝支撑碳化硅陶瓷膜及其制备方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115231902A true CN115231902A (zh) | 2022-10-25 |
| CN115231902B CN115231902B (zh) | 2024-08-27 |
Family
ID=83671091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210809185.5A Active CN115231902B (zh) | 2022-07-10 | 2022-07-10 | W型氧化铝支撑碳化硅陶瓷膜及其制备方法 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115231902B (zh) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012005623A1 (ru) * | 2010-07-06 | 2012-01-12 | Ovinkin Vladimir Vasilevich | Самонесущая рифлёная фильтрующая среда (варианты) |
| CN103962014A (zh) * | 2014-05-28 | 2014-08-06 | 吴汉阳 | 蜂窝集束孔中空板式陶瓷整体膜元件的制造方法 |
| CN205495357U (zh) * | 2016-04-15 | 2016-08-24 | 萍乡市博鑫精细陶瓷有限公司 | 异形过滤面陶瓷膜过滤元件 |
| CN106007779A (zh) * | 2016-05-17 | 2016-10-12 | 上海硅苑膜科技有限公司 | 高纯氧化铝平板陶瓷膜支撑体的制备方法 |
| CN106215704A (zh) * | 2016-08-31 | 2016-12-14 | 景德镇陶瓷大学 | 一种组合式平板蜂窝陶瓷膜及其制备方法 |
| CN112759370A (zh) * | 2019-10-18 | 2021-05-07 | 三达膜科技（厦门）有限公司 | 一种高强度陶瓷过滤膜的制备方法 |
| CN113181713A (zh) * | 2021-03-11 | 2021-07-30 | 昆明理工大学 | 一种瓦楞形复层结构多孔铝过滤单元的制备方法 |
| CN113648848A (zh) * | 2021-08-05 | 2021-11-16 | 河北工业大学 | 一种中空平板陶瓷膜及其制备方法 |
| CN114053877A (zh) * | 2020-08-01 | 2022-02-18 | 常启兵 | 一种碟式陶瓷膜支撑体的制备方法及其陶瓷膜制品 |
| CN114249584A (zh) * | 2020-09-25 | 2022-03-29 | 三达膜科技（厦门）有限公司 | 一种圆盘式多通道陶瓷膜的制备方法 |
| CN114656258A (zh) * | 2022-04-02 | 2022-06-24 | 山东理工大学 | 基于sla光固化3d打印制备电解质支撑体的方法 |
| CN217709267U (zh) * | 2022-07-10 | 2022-11-01 | 上海熊猫机械(集团)有限公司 | W型氧化铝支撑碳化硅陶瓷膜 |
-
2022
- 2022-07-10 CN CN202210809185.5A patent/CN115231902B/zh active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012005623A1 (ru) * | 2010-07-06 | 2012-01-12 | Ovinkin Vladimir Vasilevich | Самонесущая рифлёная фильтрующая среда (варианты) |
| CN103962014A (zh) * | 2014-05-28 | 2014-08-06 | 吴汉阳 | 蜂窝集束孔中空板式陶瓷整体膜元件的制造方法 |
| CN205495357U (zh) * | 2016-04-15 | 2016-08-24 | 萍乡市博鑫精细陶瓷有限公司 | 异形过滤面陶瓷膜过滤元件 |
| CN106007779A (zh) * | 2016-05-17 | 2016-10-12 | 上海硅苑膜科技有限公司 | 高纯氧化铝平板陶瓷膜支撑体的制备方法 |
| CN106215704A (zh) * | 2016-08-31 | 2016-12-14 | 景德镇陶瓷大学 | 一种组合式平板蜂窝陶瓷膜及其制备方法 |
| CN112759370A (zh) * | 2019-10-18 | 2021-05-07 | 三达膜科技（厦门）有限公司 | 一种高强度陶瓷过滤膜的制备方法 |
| CN114053877A (zh) * | 2020-08-01 | 2022-02-18 | 常启兵 | 一种碟式陶瓷膜支撑体的制备方法及其陶瓷膜制品 |
| CN114249584A (zh) * | 2020-09-25 | 2022-03-29 | 三达膜科技（厦门）有限公司 | 一种圆盘式多通道陶瓷膜的制备方法 |
| CN113181713A (zh) * | 2021-03-11 | 2021-07-30 | 昆明理工大学 | 一种瓦楞形复层结构多孔铝过滤单元的制备方法 |
| CN113648848A (zh) * | 2021-08-05 | 2021-11-16 | 河北工业大学 | 一种中空平板陶瓷膜及其制备方法 |
| CN114656258A (zh) * | 2022-04-02 | 2022-06-24 | 山东理工大学 | 基于sla光固化3d打印制备电解质支撑体的方法 |
| CN217709267U (zh) * | 2022-07-10 | 2022-11-01 | 上海熊猫机械(集团)有限公司 | W型氧化铝支撑碳化硅陶瓷膜 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115231902B (zh) | 2024-08-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0693961B1 (en) | Method for the production of ceramic hollow fibre membranes for microfiltration, ultrafiltration and gas separation | |
| EP0047640A2 (en) | Inorganic monolithic hollow fibers, process for their production, and apparatus comprising them | |
| CN106178981B (zh) | 一种低温制备氧化钛陶瓷超滤膜的方法 | |
| CN217709267U (zh) | W型氧化铝支撑碳化硅陶瓷膜 | |
| JPH03143535A (ja) | セラミックス製非対称膜及びその製造方法 | |
| Ananthakumar et al. | Rheology and packing characteristics of alumina extrusion using boehmite gel as a binder | |
| CN108329033A (zh) | 液相烧结多通道碳化硅陶瓷膜元件及其制备方法 | |
| CN105000871B (zh) | 一种多功能平板陶瓷膜及其制备工艺 | |
| CN115521158B (zh) | 一种高透气性陶瓷纤维过滤管的制备方法 | |
| KR20180072025A (ko) | 산화 처리된 SiC를 이용한 수처리용 세라믹 분리막 및 그 제조 방법 | |
| CN113105223A (zh) | 一种低成本高渗透性的晶须状陶瓷膜制备及其应用 | |
| CN109400203A (zh) | 一种石墨烯无机多孔陶瓷膜的制备方法 | |
| Wang et al. | Recent progress in the pore size control of silicon carbide ceramic membranes | |
| WO2018094860A1 (zh) | 一种螺线型陶瓷弹簧的制作工艺 | |
| CN113999046A (zh) | 一种低温反应烧结碳化硅陶瓷膜的制备方法 | |
| KR101913178B1 (ko) | 세라믹 중공사막의 제조방법 및 이에 따라 제조되는 세라믹 중공사막 | |
| KR101234490B1 (ko) | 세라믹 필터 및 그 제조방법 | |
| KR101639368B1 (ko) | 다공성 알루미나 튜브 제조방법 | |
| CN115231902B (zh) | W型氧化铝支撑碳化硅陶瓷膜及其制备方法 | |
| CN106215704B (zh) | 一种组合式平板蜂窝陶瓷膜及其制备方法 | |
| CN110743386A (zh) | 一种氧化锆-氧化钛复合超滤膜的制备方法 | |
| CN106268334B (zh) | 一种陶瓷分离膜元件及其制备方法 | |
| CN106007779B (zh) | 高纯氧化铝平板陶瓷膜支撑体的制备方法 | |
| CN110981453B (zh) | 一种轻质陶瓷过滤膜的制备方法 | |
| CN106588097A (zh) | 一种用于水处理的陶瓷支撑体及其制备方法 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |