CN114686098A - 一种耐高温喷漆及其制备方法 - Google Patents
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- 238000000034 method Methods 0.000 claims description 15
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims description 12
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- QZCLKYGREBVARF-UHFFFAOYSA-N Acetyl tributyl citrate Chemical compound CCCCOC(=O)CC(C(=O)OCCCC)(OC(C)=O)CC(=O)OCCCC QZCLKYGREBVARF-UHFFFAOYSA-N 0.000 claims description 4
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- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 2
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- 238000005516 engineering process Methods 0.000 claims 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000000377 silicon dioxide Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 9
- 239000000853 adhesive Substances 0.000 abstract description 4
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- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000004806 packaging method and process Methods 0.000 abstract description 3
- 238000000889 atomisation Methods 0.000 abstract description 2
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- 239000011256 inorganic filler Substances 0.000 abstract 1
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- 239000002994 raw material Substances 0.000 abstract 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 16
- 238000000576 coating method Methods 0.000 description 13
- 239000011248 coating agent Substances 0.000 description 12
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
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- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- 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
- C09D183/04—Polysiloxanes
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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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Abstract
本发明公开了一种耐高温喷漆及其制备方法,该涂料原料包括以下重量份的组分:无机硅树脂18~26份、改性硅溶胶9~12份、复合功能性填料17~25份、环保溶剂13~19份、无机耐高温颜填料3~6份、辅助成膜物质4~7.1份、推进剂18~26,本发明使用无机硅树脂、改性硅溶胶为成膜物质与无机填料经合理调配制备的涂料,并具有如下优异效果:1.漆膜常温下可稳定固化,而且漆膜的耐高温性好,可达到900℃以上。2.漆膜附着力、耐候性、硬度优良,且喷漆满足环保要求。3.气雾剂包装,施工雾化良好,操作方便。
Description
技术领域
本发明涉及涂料与气雾漆交叉技术领域,尤其涉及一种耐高温喷漆制备方法。
背景技术
无机耐高温漆是一种高效的耐高温涂料,其原理是基于-SiO-O-SiO-薄膜对非金属和金属表面形成高温防腐起保护作用,在汽车零部件、半导体工业、航天工业、石化行业、机械工业、医疗行业、电子电器等领域具有广泛应用。目前国内外广泛使用的耐高温漆分别有有机硅耐高温漆和无机硅耐高温漆。
有机硅耐高温漆以有机硅树脂为基料, 通常有机硅树脂的耐温在500℃以下,其溶剂以甲苯或二甲苯为主,产品气味较大,毒性较大,VOC含量较高。由于涂料中有机基团,在常温下干性较差,需经过加热固化,分子链中的C-Si键断裂,有机基团分解,形成-Si-0-Si-键,而未经高温固化的漆膜附着力低,耐高温性、耐热性、硬度较差,漆膜容易刮花、脱落。
发明内容
本发明针对有机硅耐高温漆,克服了有机硅耐高温漆中耐高温性差、VOC含量高、附着力低、硬度较差、漆膜需加热固化等问题,提供一种可以实现一种耐高温喷漆制备方案。
为实现以上目的,本发明采用以下技术方案:一种耐高温喷漆,按重量计,包含以下组分:
配方成分 成分占比
无机硅树脂 18~26份
改性硅溶胶 9~12份
溶剂 13~19份
无机耐高温颜填料 3~6份
抗泡剂 0.5~1.1份
流平剂 0.5~1份
润湿分散剂 1~2份
扩链剂 1~1.5份
催化剂 1~1.5份
推进剂 18~26份
复合功能性填料 17~25份;
所述的无机硅树脂为张家港新亚化工有限公司的聚硅酸乙酯-40、聚硅酸乙酯-32、聚硅酸乙-28中的至少一种;
所述的改性硅溶胶为广州富尔化工科技有限公司的醇溶性硅溶胶WLCR-20、WLCR-25、WLCR-30中的至少一种;
所述的无机硅树脂、改性硅溶胶均具有常温自干性,在施工喷涂后,可与空气中的水分发生反应,常温下交联固化成膜,形成一种不溶水干膜,具有水不可逆性;
所述的环保溶剂为乙酰柠檬酸三丁酯、二丙二醇二甲醚、丙二醇甲醚中的至少一种;
所述的无机耐高温颜填料为美丹颜料公司耐高温系列的无机颜料中的至少一种;
所述的扩链剂为二甲基二甲氧基硅烷、二甲基二乙氧基硅烷中的至少一种;
所述的催化剂为钛酸丁酯、二钛酸二异丙酯、铝酸二异丙酯中的至少一种;
所述的复合功能性填料为硼系D250低熔点玻璃粉、云母粉、耐高温片层结构石墨烯、氧化铝短纤维中的至少一种;
所述的推进剂为DME、LPG、134a、152a中的至少一种,推进剂按重量份涂料料液∶推进剂=1.5~2.3∶1~1.3进行填充;
所述的流平剂为GLIDE B1484、TEGO Glide 460中的至少一种;
所述的抗泡剂为YCK-620、WANALYST®SC703中的至少一种;
所述的润湿分散剂为TEGO®Dispers 655、Surfynol CT-136、DISPERBYK-2152中的至少一种;
本发明还提供了一种耐高温喷漆的制备方法,该方法包括以下步骤:
将无机硅树脂与适量的溶剂、扩链剂、无机耐高温颜填料、润湿分散剂、抗泡剂和复合功能性填料加入反应缸分散制得色浆;再加入改性醇溶性硅溶胶、流平剂、催化剂,分散制得涂料;在气雾罐中加入搅拌子;将漆料灌装至气雾罐中,加入大出量雌阀阀门后进行封口、充填推进剂,过水浴后装上按头。
本发明具有以下有益效果:
1.采用气雾包装,储存稳定,雾化良好,施工方便。
2.添加复合功能性填料提高涂层的耐高温性能,以及提高涂层强度。
3.涂膜常温固化,且硬度高,附着力、耐候性好。
4.环保、安全,对环境、施工人员友好。漆膜固化后,涂层为无机涂层,耐热性能、耐高温性能优异。
具体实施方式
以下实施例对本发明进行说明,但本发明并不受这些实施例所限制。对本发明的具体实施方式进行修改或者对部分技术特征进行等同替换,而不脱离本发明方案的精神,其均应涵盖在本发明请求保护的技术方案范围当中。
实施例一:
将聚硅酸乙酯-40树脂9份、聚硅酸乙酯-32树脂9份、二丙二醇二甲醚7份、乙酰柠檬酸三丁酯7份、二甲基二甲氧基硅烷0.7份、二甲基二乙氧基硅烷0.7份、氧化铁橙3份、氧化铁蓝3份、TEGO®Dispers 6551份、Surfynol CT-1361份、WANALYST®SC7031.1份和硼系D250低熔点玻璃粉10份、云母粉10份、氧化铝短纤维5份加入反应缸分散制得色浆;再加入WLCR-20改性醇溶性硅溶胶12份、GLIDE B1484 0.5份、TEGO Glide 460 0.5份、钛酸丁酯1.5份分散制得漆料;在气雾罐中加入搅拌子,将18份推进剂按重量份配比漆料∶DME∶152a=2.2∶0.8∶0.5灌装至气雾罐中,加入大出量雌阀阀门后进行封口、充填推进剂,过水浴后装上按头,即可得到耐高温喷漆。
实施例二:
将聚硅酸乙酯-28树脂10份、聚硅酸乙酯-32树脂9份、丙二醇甲醚10份、二丙二醇二甲醚3份、二甲基二甲氧基硅烷1.4份、4610氧化铁棕2份、4130氧化铁红2份、SurfynolCT-136 1份、TEGO®Dispers 655 0.5份、WANALYST®SC7030.8份和硼系D250低熔点玻璃粉10份、云母粉4份、耐高温片层结构石墨烯10份加入反应缸分散制得色浆;再加入WLCR-20改性醇溶性硅溶胶4份、WLCR-25改性醇溶性硅溶胶4份、TEGO Glide 4600.8份、钛酸丁酯0.5份、二钛酸二异丙酯1份分散制得漆料;在气雾罐中加入搅拌子,将26份推进剂按重量份配比漆料∶LPG =1.5∶1灌装至气雾罐中,加入大出量雌阀阀门后进行封口、充填推进剂,过水浴后装上按头,即可得到耐高温喷漆。
实施例三:
将聚硅酸乙酯-40树脂26份、二丙二醇二甲醚19份、二甲基二乙氧基硅烷1份、4920氧化铁黄1.5份、氧化铁橙1.5份、DISPERBYK-2152 0.5份、TEGO®Dispers 655 0.5份、YCK-6200.5份和硼系D250低熔点玻璃粉10份、云母粉5份、氧化铝短纤维2份加入反应缸分散制得色浆;再加入WLCR-25改性醇溶性硅溶胶9份、TEGO Glide 4600.5份、铝酸二异丙酯1份分散制得漆料;在气雾罐中加入搅拌子,将22份推进剂按重量份配比漆料∶LPG∶134a=2.3∶0.85∶0.15灌装至气雾罐中,加入大出量雌阀阀门后进行封口、充填推进剂,过水浴后装上按头,即可得到耐高温喷漆。
实施例四:
将聚硅酸乙酯-32树脂22份、乙酰柠檬酸三丁酯7份、丙二醇甲醚8份、二甲基二乙氧基硅烷 1.4份、4330氧化铁黑2份、氧化铁蓝2份、4130氧化铁红1份、Surfynol CT-1361.8份、YCK-6201份和硼系D250低熔点玻璃粉5份、云母粉5份、耐高温片层结构石墨烯8份加入反应缸分散制得色浆;再加入WLCR-30改性醇溶性硅溶胶10份、GLIDE B14840.7份、钛酸丁酯0.5份、铝酸二异丙酯0.6份分散制得漆料;在气雾罐中加入搅拌子,将24份推进剂按重量份配比漆料∶DME=1.85∶1灌装至气雾罐中,加入大出量雌阀阀门后进行封口、充填推进剂,过水浴后装上按头,即可得到耐高温喷漆。
对比例五
准备天津某品牌市售有机硅耐高温油漆涂料(20kg桶装),取适量进行对比测试。
实施例一~四和比较例5中制备的气雾漆的相关性能测试方法,如下:
1.施工方式:实施例1~4均为气雾型包装,喷涂施工;比较例五为桶装,刷涂施工,直观感受其施工过程、用时长短,施工效果。
2.耐热性能:参照 GB/T1735-2009《色漆和清漆耐热性测定法》中的规定进行,将涂料喷涂在样板后,置入调好规定温度的高温箱内,达到规定时间内将样件取出,冷却温度25±2℃后,检查其有无起层、皱皮、鼓泡、开裂、变色等现象。
3.耐高温性能:参照国际标准ASTMD2453-2015,将涂料喷涂在样板后,置于高温炉中,达到规定温度迅速将样板置于冷水冷却,然后再置于高温炉,反复循环,直至漆膜出现起层、皱皮、鼓泡、开裂、变色等现象,记录最高温度为Tmax。
4.漆膜起层、皱皮、鼓泡、开裂、变色等现象的评价参照GB/T 1766-1995《色漆和清漆涂层老化的评级方法》中的规定进行。
5.干燥时间:参照GB/T 1728-1979《漆膜、腻子膜干燥时间测定法》中的规定进行,表干按乙法测试,实干按甲法测试。
6.附着力:参照GB/T 1720-1979(89)《漆膜附着力测定法》中的规定进行。
7.硬度:参照GB/T 6739-1986《漆膜硬度测试法》中的规定进行。
8.环保性:参照GB 18581-2009中附录B的规定进行,通过气相色谱仪进行测定苯、甲苯、二甲苯有害溶剂含量。
综上所述,本发明一种耐高温喷漆与现有技术(对比例五)相比,漆膜拥有高附着力、高硬度、环保、耐高温性好、耐热性好等特点,并且能常温固化,能通过制备气雾型获得良好的施工性能。
Claims (10)
1.一种耐高温喷漆,其特征在于,各组分按重量份配比包括:
配方成分 成分占比
无机硅树脂 18~26份
改性硅溶胶 9~12份
环保溶剂 13~19份
无机耐高温颜填料 3~6份
抗泡剂 0.5~1.1份
流平剂 0.5~1份
润湿分散剂 1~2份
扩链剂 1~1.5份
催化剂 1~1.5份
推进剂 18~26份
复合功能性填料 17~25份。
2.如权利要求1所述,其特征在于,所述的无机硅树脂为张家港新亚化工有限公司的聚硅酸乙酯-40、聚硅酸乙酯-32、聚硅酸乙-28中的至少一种。
3.如权利要求1所述,其特征在于,所述的改性硅溶胶为广州富尔化工科技有限公司的醇溶性硅溶胶WLCR-20、WLCR-25、WLCR-30中的至少一种。
4.如权利要求1所述,其特征在于,所述的环保溶剂为乙酰柠檬酸三丁酯、二丙二醇二甲醚、丙二醇甲醚中的至少一种。
5.如权利要求1所述,其特征在于,所述的无机耐高温颜填料为美丹颜料公司耐高温系列的无机颜料中的至少一种。
6.如权利要求1所述,其特征在于,所述的扩链剂为二甲基二甲氧基硅烷、二甲基二乙氧基硅烷中的至少一种;催化剂为钛酸丁酯、二钛酸二异丙酯、铝酸二异丙酯中的至少一种。
7.如权利要求1所述,其特征在于,所述的复合功能性填料为硼系D250低熔点玻璃粉、云母粉、耐高温片层结构石墨烯、氧化铝短纤维中的至少一种。
8.如权利要求1所述,其特征在于,所述的流平剂为GLIDE B1484、TEGO Glide 460中的至少一种;润湿分散剂为TEGO®Dispers 655、Surfynol CT-136、DISPERBYK-2152中的至少一种;抗泡剂为YCK-620、WANALYST®SC703中的至少一种。
9.如权利要求1所述,其特征在于,所述的推进剂为DME、LPG、134a、152a中的至少一种,推进剂按重量份涂料料液∶推进剂=1.5~2.3∶1~1.3进行填充。
10.如权利要求1所述,其特征在于,制备方法包括以下步骤:
将无机硅树脂与适量的溶剂、扩链剂、无机耐高温颜填料、润湿分散剂、抗泡剂和复合功能性填料加入反应缸分散制得色浆;再加入改性醇溶性硅溶胶、流平剂、催化剂,分散制得漆料;在气雾罐中加入搅拌子;将漆料灌装至气雾罐中,加入大出量雌阀阀门后进行封口、充填推进剂,过水浴后装上按头。
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