CN111218207A - 聚碳硅烷与氧化铝氧化镁复合物溶液的制备和使用方法 - Google Patents
聚碳硅烷与氧化铝氧化镁复合物溶液的制备和使用方法 Download PDFInfo
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- 229920003257 polycarbosilane Polymers 0.000 title claims abstract description 62
- -1 aluminum oxide magnesium oxide compound Chemical class 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 35
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- 238000000576 coating method Methods 0.000 claims abstract description 51
- 239000011248 coating agent Substances 0.000 claims abstract description 47
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 29
- 239000000126 substance Substances 0.000 claims abstract description 28
- 238000005260 corrosion Methods 0.000 claims abstract description 25
- 230000007797 corrosion Effects 0.000 claims abstract description 24
- 229910052751 metal Inorganic materials 0.000 claims abstract description 20
- 239000002184 metal Substances 0.000 claims abstract description 20
- 239000002131 composite material Substances 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 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 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 238000005303 weighing Methods 0.000 claims abstract description 11
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000004327 boric acid Substances 0.000 claims abstract description 10
- 239000001509 sodium citrate Substances 0.000 claims abstract description 10
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 claims abstract description 10
- 239000008367 deionised water Substances 0.000 claims abstract description 9
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 9
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- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 24
- 239000000654 additive Substances 0.000 claims description 19
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 17
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- 230000008569 process Effects 0.000 claims description 15
- 238000004381 surface treatment Methods 0.000 claims description 15
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 12
- 230000000996 additive effect Effects 0.000 claims description 11
- UAMZXLIURMNTHD-UHFFFAOYSA-N dialuminum;magnesium;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[Mg+2].[Al+3].[Al+3] UAMZXLIURMNTHD-UHFFFAOYSA-N 0.000 claims description 11
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 10
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- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 6
- TXUICONDJPYNPY-UHFFFAOYSA-N (1,10,13-trimethyl-3-oxo-4,5,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-17-yl) heptanoate Chemical compound C1CC2CC(=O)C=C(C)C2(C)C2C1C1CCC(OC(=O)CCCCCC)C1(C)CC2 TXUICONDJPYNPY-UHFFFAOYSA-N 0.000 claims description 5
- 229910021626 Tin(II) chloride Inorganic materials 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 5
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- PLWSZOQYWKLNIL-UHFFFAOYSA-N 1-butyl-2-chloro-3-methyl-2h-imidazole Chemical group CCCCN1C=CN(C)C1Cl PLWSZOQYWKLNIL-UHFFFAOYSA-N 0.000 claims description 3
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 3
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- 239000001301 oxygen Substances 0.000 abstract description 5
- 229910052760 oxygen Inorganic materials 0.000 abstract description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 abstract 1
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- LIKFHECYJZWXFJ-UHFFFAOYSA-N dimethyldichlorosilane Chemical compound C[Si](C)(Cl)Cl LIKFHECYJZWXFJ-UHFFFAOYSA-N 0.000 abstract 1
- 229920000555 poly(dimethylsilanediyl) polymer Polymers 0.000 abstract 1
- 229910052708 sodium Inorganic materials 0.000 abstract 1
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- CNGGOAOYPQGTLH-UHFFFAOYSA-N [O-2].[O-2].[Mg+2].[Al+3] Chemical compound [O-2].[O-2].[Mg+2].[Al+3] CNGGOAOYPQGTLH-UHFFFAOYSA-N 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
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- 238000005406 washing Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- BYFGZMCJNACEKR-UHFFFAOYSA-N aluminium(i) oxide Chemical compound [Al]O[Al] BYFGZMCJNACEKR-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
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- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- CYTYCFOTNPOANT-UHFFFAOYSA-N Perchloroethylene Chemical group ClC(Cl)=C(Cl)Cl CYTYCFOTNPOANT-UHFFFAOYSA-N 0.000 description 1
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- 150000008040 ionic compounds Chemical class 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
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- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
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- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/16—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers in which all the silicon atoms are connected by linkages other than oxygen atoms
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- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/10—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by other chemical means
- B05D3/102—Pretreatment of metallic substrates
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Abstract
本发明涉及一种聚碳硅烷与氧化铝氧化镁复合物溶液的制备和使用方法,将二氯二甲基硅烷作为初始原料,通过钠缩合制成聚二甲基硅烷,在高温高压下转变为聚碳硅烷;秤取氧化铝、氧化镁、柠檬酸钠、硼酸、耦合剂、分散剂、粘稠剂和表面活性剂,分别用去离子水充分溶解,调节pH值配制成聚碳硅烷与氧化铝氧化镁复合物溶液。然后将配好的聚碳硅烷与氧化铝氧化镁复合物溶液加热,将化工设备金属基材表面进行预处理,采用喷涂或者刷涂的方法涂覆表面,静止或采用加速方法进行固化,干燥即可得到聚碳硅烷与氧化铝氧化镁复合物薄膜。本发明可以快速得到多层结构的复合防护涂层,达到化工设备耐酸腐蚀及耐水氧腐蚀抗磨损的目的。
Description
技术领域
本发明涉及一种聚碳硅烷与氧化铝氧化镁复合物溶液的制备和使用方法,属于化学工程科学技术领域。
背景技术
化工设备经常受到各种各样的酸碱环境、水氧环境腐蚀,给设备维护和正常生产造成了严重的经济损失,据调查金属腐蚀造成的经济损失大致为该国国民生产总值的4%。腐蚀防护中用得最多的是对金属表面改性和覆盖层保护,合称表面保护。表面保护又可分成四种类型:金属表面涂敷有机涂层;金属表面镀敷耐蚀金属或合金层;改变金属表面层的成分;使金属表面形成化学转化膜。其中有机涂层防护是将耐蚀有机涂料涂敷在金属表面,经固化成膜后具有屏蔽、缓蚀和电化学保护三方面的作用,因其施工方便,防腐效果好而得到广泛应用。目前广泛使用的有机防腐涂料按主要成膜物可分为:酚醛树脂防腐涂料、环氧树脂防腐涂料、聚氨酯防腐涂料、乙烯树脂防腐涂料、过氯乙烯树脂防腐涂料、呋喃树脂防腐涂料、橡胶类防腐涂料等。近年来国内外不断地开发出许多具有优异耐蚀性和热稳定性的新型高分子防腐涂料。有机防腐涂料作为涂料工业的一部分也将朝绿色环保的方向发展,粉末防腐涂料、水性防腐涂料等绿色涂料将成为未来耐蚀有机涂料的主要组成部分;其次,为了提高有机涂层在高温强腐蚀介质条件下的保护性能,将会不断开发出具有优异耐蚀性耐热性的新型防腐涂料,这一方面可以通过合成新的高性能的高分子材料,另一方面可以通过对现有的耐蚀高分子材料进行改性处理来实现。聚碳硅烷表现出一系列的优良特性,如优异的耐久性、耐候性和耐化学药品性;良好的非粘附性、低表面张力和低摩擦性,以及憎水、憎油性等特殊的表面性能;另外还具有高绝缘性、低电解常数等电气特性。因此,采用聚碳硅烷作为主要成膜物制备的防腐涂料具有极高的化学惰性,能耐强酸、强碱、盐类等大多数物质的侵蚀,而且耐候、耐温性优异,在-40~200℃范围内可长期使用。氧化铝(aluminium oxide),化学式Al2O3。是一种高硬度的化合物,熔点为2054℃,沸点为2980℃,化学性质稳定,廉价易得。氧化镁(化学式:MgO)是镁的氧化物,一种离子化合物。常温下为一种白色固体。氧化镁有高度耐火绝缘性能。经1000℃以上高温灼烧可转变为晶体,升至1500-2000℃则成死烧氧化镁(也就是所说的镁砂)或烧结氧化镁。经表面处理的氧化镁亦可做为工艺中的络合剂、螯合剂、载体,且是传统的阻燃剂,化学性质稳定,廉价易得。
上述几种材料的调配,可获得新型专用化工设备耐酸腐蚀聚碳硅烷/氧化铝氧化镁涂层,在未来具有广泛的应用市场。
发明内容
发明目的:本发明针对上述现有技术存在的不足和缺陷,提供一种一种化工设备耐腐蚀用聚碳硅烷/氧化铝氧化镁涂层材料及其制备技术,有效解决了粉末颗粒多层耐酸腐蚀涂层涂覆过程中团聚、表面涂覆不均匀、涂覆速度过快导致涂液不稳定的问题。本发明通过以下技术方案实现。
技术方案:为解决上述问题,本发明采用以下技术方案:
一种聚碳硅烷与氧化铝氧化镁复合物溶液的制备方法,具体步骤如下:
(1)配制化学聚碳硅烷与氧化铝氧化镁复合物溶液:秤取聚碳硅烷,用苯或者甲苯等有机溶剂进行,得到半透明有机溶液;秤取氧化铝、氧化镁、柠檬酸钠、硼酸、耦合剂、分散剂、粘稠剂和表面活性剂,分别用去离子水充分溶解,加入有机溶液,用氢氧化钠调整溶液pH值至6~8,得到聚碳硅烷与氧化铝氧化镁复合物溶液;
(2)在制备好的聚碳硅烷与氧化铝氧化镁复合物溶液中加入常规添加剂和特殊添加剂,将制备好的聚碳硅烷与氧化铝氧化镁复合物溶液加热至40~70℃,温度恒定后进行磁力搅拌,搅拌时间为0.5-50小时,磁力搅拌转速为100~500rpm。
进一步地,所述步骤1)中,聚碳硅烷配合其它常规添加剂联合使用,常规添加剂为聚四氟乙烯、聚乙烯、聚环氧树脂、酚醛树脂及工程塑料中的任意一种或任意两种的组合。
进一步地,所述聚碳硅烷与氧化铝氧化镁复合物溶液的成分及含量为:聚碳硅烷浓度:2~5kg/l;氧化铝氧化镁:2~4kg/l;柠檬酸钠:0.01~0.3kg/l;硼酸:0.1~0.5kg/l。
进一步地,所述步骤2)中,特殊添加剂为氯化-1-丁基-3-甲基咪唑、四氟硼酸咪唑或六氟磷酸咪唑,含量为2~50g/l。
一种聚碳硅烷与氧化铝氧化镁复合物溶液的使用方法,包括以下步骤:
(a)对化工设备的金属基材进行表面处理,除油除锈除杂物,确保待涂覆表面清洁无污染,将均匀化后的聚碳硅烷与氧化铝氧化镁复合物溶液用喷涂或者刷涂的工艺进行涂覆,涂覆厚度0.1-200微米,干燥并固化处理;
(b)重复(a)过程,制备的聚碳硅烷与氧化铝氧化镁复合物溶液所涂刷的涂层可在1层-2000层调控。
进一步地,所述步骤1)中,表面处理采用表面处理液,表面处理液配方为氯化亚锡:10~30g/l,盐酸:3~6mol/l。
进一步地,所述化工设备耐腐蚀用聚碳硅烷与氧化铝氧化镁复合物溶液所涂刷的涂层厚度为0.01~500μm,膜层数量可调整为1-2000层。
有益效果:本发明与现有技术相比:
(1)本发明所述方法针对化工设备耐腐蚀的具体环境,用聚碳硅烷/氧化铝氧化镁涂层材料进行设备金属基材防护,使有金属表面有机-无机化,提高了化工设备金属基材的耐腐蚀能力,寿命较无涂层基材提高5-10倍;
(2)本发明所述方法通过聚碳硅烷和氧化铝氧化镁保护金属基材,实现了操作方便,使用效果明显,成本低廉,无中间过渡层,解决了有机基体与金属性质相差太大而不粘附的问题,增强了有机-无机膜与金属基体的结合强度。
附图说明
图1为聚碳硅烷与氧化铝氧化镁复合物溶液所涂的涂层实施效果示意图;
图2为聚碳硅烷与氧化铝氧化镁复合物溶液所涂的涂层的显微结构扫描电镜图。
具体实施方式
下面结合具体实施方式,对本发明作进一步说明。
实施例1
一种聚碳硅烷与氧化铝氧化镁复合物溶液的制备和使用方法,其具体步骤如下:
(1)配制聚碳硅烷与氧化铝氧化镁复合物溶液:秤取2公斤的聚碳硅烷,用1L 甲苯有机溶剂进行溶剂,加热温度313K,电磁搅拌时间5小时,得到一定粘度的半透明有机溶液;秤取2kg质量的氧化铝氧化镁,柠檬酸钠0.01kg、硼酸0.1kg、耦合剂 0.01kg、分散剂0.01kg、粘稠剂0.01kg、表面活性剂0.01kg等,分别用少量去离子水充分溶解,加入一定体积的甲苯,用氢氧化钠调整溶液pH值至6~8;
(2)常规添加剂为聚四氟乙烯,其特殊添加剂为氯化-1-丁基-3-甲基咪唑,含量为10g/l,将制备好的聚碳硅烷与氧化铝氧化镁复合物溶液加热至40℃,温度恒定后进行磁力搅拌,搅拌时间为2小时,磁力搅拌转速为400rpm。
(3)对化工设备的金属基材Q235钢进行表面处理,具体过程为用氯化亚锡:10g/l,盐酸:3mol/l的处理液进行表面处理10min,然后过滤并用去离子水清洗三遍,得到具有清洁和粗糙表面,除油除锈除杂物,确保待涂覆表面清洁无污染;将均匀化后的聚碳硅烷与氧化铝氧化镁复合物溶液用刷涂的工艺进行涂覆,涂覆厚度2微米,干燥并固化处理;
(4)重复上述工艺,进行第二次涂覆。制的涂层有效解决了传统化工设备防腐涂层颗粒物团聚、表面镀覆不均匀、镀覆速度过快导致防护涂层不稳定的问题,简化工艺快速得到具有较好耐酸碱耐水氧腐蚀的防护涂层结构。寿命较无涂层基材提高5倍;
实施例2
一种聚碳硅烷与氧化铝氧化镁复合物溶液的制备和使用方法,其具体步骤如下:
(1)配制环氧树脂基作为添加剂的聚碳硅烷与氧化铝氧化镁复合物溶液:秤取4公斤的聚碳硅烷,用1L甲苯有机溶剂进行溶剂,加热温度313K,电磁搅拌时间5小时,得到一定粘度的半透明有机溶液;准备环氧树脂0.5L,与上述有机溶剂进一步制成复合溶液,加热温度323K,电磁搅拌时间1小时,得到一定粘度的半透明复合有机溶液;秤取2kg质量的氧化铝氧化镁,柠檬酸钠0.01kg、硼酸0.02kg、耦合剂0.01kg、分散剂0.01kg、粘稠剂0.01kg、表面活性剂0.02kg等,分别用少量去离子水充分溶解,加入一定体积的甲苯,用氢氧化钠调整溶液pH值至6~8;
(2)常规添加剂为聚乙烯,其特殊添加剂,为四氟硼酸咪唑,含量为20g/l。将制备好的聚碳硅烷与氧化铝氧化镁复合物溶液加热至45℃,温度恒定后进行磁力搅拌,搅拌时间为3小时,磁力搅拌转速为300rpm。
(3)对化工设备的金属基材不锈钢进行表面处理,具体过程为用氯化亚锡:10g/l,盐酸:3mol/l的处理液进行表面处理10min,然后过滤并用去离子水清洗三遍,得到具有清洁和粗糙表面,除油除锈除杂物,确保待涂覆表面清洁无污染;将均匀化后的环氧树脂聚碳硅烷与氧化铝氧化镁复合物溶液用刷涂的工艺进行涂覆,涂覆厚度30微米,干燥并固化处理;
(4)重复上述工艺,进行第二次涂覆。根据需求,涂敷20次,制的涂层有效解决了传统化工设备防腐涂层颗粒物团聚、表面镀覆不均匀、镀覆速度过快导致防护涂层不稳定的问题,简化工艺快速得到具有较好耐酸耐高温耐水氧腐蚀的防护涂层结构。寿命较无涂层基材提高10倍;
实施例3
该化工设备耐腐蚀用聚聚碳硅烷与氧化铝氧化镁复合物溶液制备及使用方法,其具体步骤如下:
(1)配制聚氨酯基作为添加剂的化学聚碳硅烷与氧化铝氧化镁复合物溶液:秤取5公斤的聚碳硅烷,用1L甲苯有机溶剂进行溶剂,加热温度313K,电磁搅拌时间2小时,得到一定粘度的半透明有机溶液;准备聚氨酯0.4L,与上述有机溶剂进一步制成复合溶液,加热温度303K,电磁搅拌时间2小时,得到一定粘度的半透明复合有机溶液;秤取4kg质量的氧化铝氧化镁,柠檬酸钠0.3kg、硼酸0.5kg、耦合剂0.04kg、分散剂0.03kg、粘稠剂0.03kg、表面活性剂0.03kg等,分别用少量去离子水充分溶解,加入一定体积的甲苯,用氢氧化钠调整溶液pH值至6~8;
(2)常规添加剂为聚环氧树脂,特殊添加剂为六氟磷酸咪唑,含量为20g/l。将制备好的聚碳硅烷/氧化铝氧化镁涂层材料溶液加热至55℃,温度恒定后进行磁力搅拌,搅拌时间为1小时,磁力搅拌转速为400rpm。
(3)对化工设备的金属基材20CrMo钢进行表面处理,具体过程为用氯化亚锡:10g/l,盐酸:3mol/l的处理液进行表面处理20min,然后过滤并用去离子水清洗三遍,得到具有清洁和粗糙表面,除油除锈除杂物,确保待涂覆表面清洁无污染;将均匀化后的聚氨酯聚碳硅烷/氧化铝氧化镁涂层材料溶液用刷涂的工艺进行涂覆,涂覆厚度10 微米,干燥并固化处理;
(4)重复上述工艺,进行10次涂覆。制的涂层有效解决了传统化工设备防腐涂层颗粒物团聚、表面镀覆不均匀、镀覆速度过快导致防护涂层不稳定的问题,简化工艺快速得到具有较好耐酸耐磨损耐水氧腐蚀的防护涂层结构。寿命较无涂层基材提高8 倍。
Claims (7)
1.一种聚碳硅烷与氧化铝氧化镁复合物溶液的制备方法,其特征在于:具体步骤如下:
(1)配制化学聚碳硅烷与氧化铝氧化镁复合物溶液:秤取聚碳硅烷,用苯或者甲苯等有机溶剂进行,得到半透明有机溶液;秤取氧化铝、氧化镁、柠檬酸钠、硼酸、耦合剂、分散剂、粘稠剂和表面活性剂,分别用去离子水充分溶解,加入有机溶液,用氢氧化钠调整溶液pH值至6~8,得到聚碳硅烷与氧化铝氧化镁复合物溶液;
(2)在制备好的聚碳硅烷与氧化铝氧化镁复合物溶液中加入常规添加剂和特殊添加剂,将制备好的聚碳硅烷与氧化铝氧化镁复合物溶液加热至40~70℃,温度恒定后进行磁力搅拌,搅拌时间为0.5-50小时,磁力搅拌转速为100~500rpm。
2.根据权利要求1所述的聚碳硅烷与氧化铝氧化镁复合物溶液的制备方法,其特征在于:所述步骤1)中,聚碳硅烷配合其它常规添加剂联合使用,常规添加剂为聚四氟乙烯、聚乙烯、聚环氧树脂、酚醛树脂及工程塑料中的任意一种或任意两种的组合。
3.根据权利要求1所述的聚碳硅烷与氧化铝氧化镁复合物溶液的制备方法,其特征在于:所述聚碳硅烷与氧化铝氧化镁复合物溶液的成分及含量为:聚碳硅烷浓度:2~5kg/l;氧化铝氧化镁:2~4kg/l;柠檬酸钠:0.01~0.3kg/l;硼酸:0.1~0.5kg/l。
4.根据权利要求1所述的聚碳硅烷与氧化铝氧化镁复合物溶液的制备方法,其特征在于:所述步骤2)中,特殊添加剂为氯化-1-丁基-3-甲基咪唑、四氟硼酸咪唑或六氟磷酸咪唑,含量为2~50g/l。
5.一种如权利要求1所述的聚碳硅烷与氧化铝氧化镁复合物溶液的使用方法,其特征在于:包括以下步骤:
(a)对化工设备的金属基材进行表面处理,除油除锈除杂物,确保待涂覆表面清洁无污染,将均匀化后的聚碳硅烷与氧化铝氧化镁复合物溶液用喷涂或者刷涂的工艺进行涂覆,涂覆厚度0.1-200微米,干燥并固化处理;
(b)重复(a)过程,制备的聚碳硅烷与氧化铝氧化镁复合物溶液所涂刷的涂层可在1层-2000层调控。
6.根据权利要求5所述的聚碳硅烷与氧化铝氧化镁复合物溶液的使用方法,其特征在于:所述表面处理采用表面处理液,表面处理液配方为氯化亚锡:10~30g/l,盐酸:3~6mol/l。
7.根据权利要求1所述的聚碳硅烷与氧化铝氧化镁复合物溶液的使用方法,其特征在于:所述化工设备耐腐蚀用聚碳硅烷与氧化铝氧化镁复合物溶液所涂刷的涂层厚度为0.01~500μm,膜层数量可调整为1-2000层。
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