CN107955420A - 一种改善耐候性铝银浆光泽效应的方法 - Google Patents
一种改善耐候性铝银浆光泽效应的方法 Download PDFInfo
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- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims description 29
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- 229920002472 Starch Polymers 0.000 claims description 5
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- 229910052725 zinc Inorganic materials 0.000 claims description 5
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- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims description 5
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 claims description 4
- 229910052738 indium Inorganic materials 0.000 claims description 4
- DCXXMTOCNZCJGO-UHFFFAOYSA-N tristearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(OC(=O)CCCCCCCCCCCCCCCCC)COC(=O)CCCCCCCCCCCCCCCCC DCXXMTOCNZCJGO-UHFFFAOYSA-N 0.000 claims description 4
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 2
- JKGITWJSGDFJKO-UHFFFAOYSA-N ethoxy(trihydroxy)silane Chemical compound CCO[Si](O)(O)O JKGITWJSGDFJKO-UHFFFAOYSA-N 0.000 claims 1
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- 239000002585 base Substances 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
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- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/62—Metallic pigments or fillers
- C09C1/64—Aluminium
- C09C1/648—Aluminium treated with inorganic and organic, e.g. polymeric, compounds
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Abstract
本发明属于铝银浆加工技术领域,具体涉及一种改善耐候性铝银浆光泽效应的方法,包括原料准备、多壁碳纳米管处理、纳米膨润土处理、混合粉料制备、铝银浆制备。本发明相比现有技术具有以下优点:本发明在现有技术的基础上对原料进行调整,并改变了纳米膨润土的添加方式,使其在保证涂层粘着性、耐酸碱腐蚀性和耐磨性的基础上,提高了与铝银浆与树脂的相容性,通过将多壁碳纳米管酸性处理后,有效避免团聚现象的发生,提高了碳纳米管的表面质量,提高了纳米膨润土包覆的透明度,降低了包覆物对铝片光反射作用,进而较好的保持了铝片原有的金属光泽,使其具有高亮白度和高遮盖力。
Description
技术领域
本发明属于铝银浆加工技术领域,具体涉及一种改善耐候性铝银浆光泽效应的方法。
背景技术
铝银浆是一种金属颜料,其制造方法是将球形铝粉、溶剂油、油酸与球磨介质钢球混合,球磨6-30分钟后分级筛分,啮合后得到一种浆状金属颜料,铝银浆因其特有的金属光泽效应、随角异色效应、光学效应与悬浮特性等特点,使其成为应用最为广泛、研究最多的一种金属颜料,随着涂料水性化的发展,传统油性铝银浆由于存在大量的溶剂油,不易分散于水性涂料中,使其不适应水性涂料,并且铝是一种两性金属,在偏酸或偏碱的水性涂料中易氧化失去光泽并产生氢气,制备成漆料后在密闭的桶装空间会产生“涨听”,为生产带来安全隐患,因此,应用于水性涂料的铝银浆必须经改性处理,以确保水性铝粉漆的稳定性,现有技术中通过纳米膨润土包覆银铝浆,使其具有较好的耐候性和分散性,其耐酸碱腐蚀性和耐磨性相比普通铝银浆高出很多,但在实际使用时发现,包覆后的铝银浆的包覆效应下降,遮盖力下降,会影响水性铝浆的白、亮度,且与树脂的相容性较差,导致漆膜的稳定性较差。
发明内容
本发明的目的是针对现有的问题,提供了一种改善耐候性铝银浆光泽效应的方法。
本发明是通过以下技术方案实现的:一种改善耐候性铝银浆光泽效应的方法,包括以下步骤:
(1)按重量份准备原料,银铝浆100份、季戊四醇24-26份、硬脂酸锌1-2份、硅酸四乙酯8-10份、纳米膨润土6-8份、多壁碳纳米管1-2份、松脂25-27份、正硅酸乙酯0.5-1.2份、甲基丙烯酸甲酯1.6-2.4份、助剂0.4-0.8份;
(2)多壁碳纳米管酸处理,将多壁碳纳米管与酸溶液按2g/300mL的比例混合,在温度为38-42℃的条件下超声处理2-4小时,完成后用去离子水冲洗至中性,在温度为65-75℃的真空干燥箱中真空干燥2-4小时即可;
(3)将纳米膨润土在温度为160-180℃真空烘箱中烘干4-6小时备用;
(4)将上述处理后的纳米膨润土和多壁碳纳米管按重量配比混合后,放入球磨罐中密封,球磨罐经抽空后充入氮气进行球磨,球磨质量为比为30-35,转速为450-550转/分钟,球磨时间为3-5小时,得到混合粉料;
(5)将铝银浆分散在苯类溶剂中得到混合物,在80-90℃的条件下加入季戊四醇、硬脂酸锌、硅酸四乙酯,并以50转/分钟的转速搅拌10分钟,搅拌均匀后加入混合粉料,继续以50转/分钟的转速搅拌20分钟,静置30分钟,再依次加入松脂、正硅酸乙酯、甲基丙烯酸甲酯、助剂,经分次搅拌混合后,过滤,洗涤,烘干即可。
作为对上述方案的进一步改进,所述助剂按重量份包括:油酸28份、聚丙烯醇50份、淀粉4份、硬脂酸18份,各原料在高混机中混合后,在52℃条件下以450℃ 搅拌15分钟,自然冷却至室温,即可。
作为对上述方案的进一步改进,所述松脂在使用前经预处理,将松脂依次添加到质量浓度为1.84%的丙烯酸溶液中,浸泡5分钟,在43℃下以150r/min速度搅拌15分钟,过滤,然后添加到质量浓度为4.63%的丙烯酸溶液中,浸泡5分钟,在52℃下以150r/min速度搅拌15分钟,过滤,然后添加到质量浓度为7.25%的丙烯酸溶液中,浸泡5分钟,在64℃下以150r/min速度搅拌15分钟,过滤,洗涤,烘干,即可。
作为对上述方案的进一步改进,所述正硅酸乙酯、甲基丙烯酸甲酯经过共混处理:将正硅酸乙酯、甲基丙烯酸甲酯添加到高混机中,添加混合物质量0.5%的辛二酸,在72℃下,以980r/min转速搅拌40分钟,静置1小时,即可。
作为对上述方案的进一步改进,所述混合粉料的粒径为20-60nm。
本发明相比现有技术具有以下优点:本发明在现有技术的基础上对原料进行调整,并改变了纳米膨润土的添加方式,使其在保证涂层粘着性、耐酸碱腐蚀性和耐磨性的基础上,提高了与铝银浆与树脂的相容性,通过将多壁碳纳米管酸性处理后,有效避免团聚现象的发生,提高了碳纳米管的表面质量,提高了纳米膨润土包覆的透明度,降低了包覆物对铝片光反射作用,进而较好的保持了铝片原有的金属光泽,使其具有高亮白度和高遮盖力。
具体实施方式
为了进一步理解本发明,下面结合实施例对本发明优选实施方案进行描述,但是应当理解,这些描述只是为进一步说明本发明的特征和优点,而不是对本发明权利要求的限制。
以申请号为2016104282078,名称为一种纳米膨润土包覆型铝银浆发明书中实施例为对照组,其耐高温达到530-550℃,耐酸碱性达到204天,其白度为47。
实施例1
一种改善耐候性铝银浆光泽效应的方法,包括以下步骤:
(1)按重量份准备原料,银铝浆100份、季戊四醇25份、硬脂酸锌1.5份、硅酸四乙酯9份、纳米膨润土7份、多壁碳纳米管1.5份、松脂26份、正硅酸乙酯0.8份、甲基丙烯酸甲酯2份、助剂0.6份;
(2)多壁碳纳米管酸处理,将多壁碳纳米管与酸溶液按2g/300mL的比例混合,在温度为40℃的条件下超声处理3小时,完成后用去离子水冲洗至中性,在温度为70℃的真空干燥箱中真空干燥3小时即可;
(3)将纳米膨润土在温度为170℃真空烘箱中烘干5小时备用;
(4)将上述处理后的纳米膨润土和多壁碳纳米管按重量配比混合后,放入球磨罐中密封,球磨罐经抽空后充入氮气进行球磨,球磨质量为比为32,转速为500转/分钟,球磨时间为4小时,得到混合粉料;
(5)将铝银浆分散在苯类溶剂中得到混合物,在85℃的条件下加入季戊四醇、硬脂酸锌、硅酸四乙酯,并以50转/分钟的转速搅拌10分钟,搅拌均匀后加入混合粉料,继续以50转/分钟的转速搅拌20分钟,静置30分钟,再依次加入松脂、正硅酸乙酯、甲基丙烯酸甲酯、助剂,经分次搅拌混合后,过滤,洗涤,烘干即可。
其中,所述助剂按重量份包括:油酸28份、聚丙烯醇50份、淀粉4份、硬脂酸18份,各原料在高混机中混合后,在52℃条件下以450℃ 搅拌15分钟,自然冷却至室温,即可;所述松脂在使用前经预处理,将松脂依次添加到质量浓度为1.84%的丙烯酸溶液中,浸泡5分钟,在43℃下以150r/min速度搅拌15分钟,过滤,然后添加到质量浓度为4.63%的丙烯酸溶液中,浸泡5分钟,在52℃下以150r/min速度搅拌15分钟,过滤,然后添加到质量浓度为7.25%的丙烯酸溶液中,浸泡5分钟,在64℃下以150r/min速度搅拌15分钟,过滤,洗涤,烘干,即可;所述正硅酸乙酯、甲基丙烯酸甲酯经过共混处理:将正硅酸乙酯、甲基丙烯酸甲酯添加到高混机中,添加混合物质量0.5%的辛二酸,在72℃下,以980r/min转速搅拌40分钟,静置1小时,即可;所述混合粉料的粒径为20-60nm。
其耐高温达到530-550℃,耐酸碱性达到207天,其白度为51,其综合性能与对照组基本相同,白度有所提高。
实施例2
一种改善耐候性铝银浆光泽效应的方法,包括以下步骤:
(1)按重量份准备原料,银铝浆100份、季戊四醇24份、硬脂酸锌1份、硅酸四乙酯10份、纳米膨润土6份、多壁碳纳米管1份、松脂25份、正硅酸乙酯1.2份、甲基丙烯酸甲酯1.6份、助剂0.4份;
(2)多壁碳纳米管酸处理,将多壁碳纳米管与酸溶液按2g/300mL的比例混合,在温度为42℃的条件下超声处理2小时,完成后用去离子水冲洗至中性,在温度为75℃的真空干燥箱中真空干燥4小时即可;
(3)将纳米膨润土在温度为180℃真空烘箱中烘干4小时备用;
(4)将上述处理后的纳米膨润土和多壁碳纳米管按重量配比混合后,放入球磨罐中密封,球磨罐经抽空后充入氮气进行球磨,球磨质量为比为30,转速为450转/分钟,球磨时间为3小时,得到混合粉料;
(5)将铝银浆分散在苯类溶剂中得到混合物,在80℃的条件下加入季戊四醇、硬脂酸锌、硅酸四乙酯,并以50转/分钟的转速搅拌10分钟,搅拌均匀后加入混合粉料,继续以50转/分钟的转速搅拌20分钟,静置30分钟,再依次加入松脂、正硅酸乙酯、甲基丙烯酸甲酯、助剂,经分次搅拌混合后,过滤,洗涤,烘干即可。
其中,所述助剂按重量份包括:油酸28份、聚丙烯醇50份、淀粉4份、硬脂酸18份,各原料在高混机中混合后,在52℃条件下以450℃ 搅拌15分钟,自然冷却至室温,即可;所述松脂在使用前经预处理,将松脂依次添加到质量浓度为1.84%的丙烯酸溶液中,浸泡5分钟,在43℃下以150r/min速度搅拌15分钟,过滤,然后添加到质量浓度为4.63%的丙烯酸溶液中,浸泡5分钟,在52℃下以150r/min速度搅拌15分钟,过滤,然后添加到质量浓度为7.25%的丙烯酸溶液中,浸泡5分钟,在64℃下以150r/min速度搅拌15分钟,过滤,洗涤,烘干,即可;所述正硅酸乙酯、甲基丙烯酸甲酯经过共混处理:将正硅酸乙酯、甲基丙烯酸甲酯添加到高混机中,添加混合物质量0.5%的辛二酸,在72℃下,以980r/min转速搅拌40分钟,静置1小时,即可;所述混合粉料的粒径为20-60nm。
其耐高温达到530-550℃,耐酸碱性达到205天,其白度为52,其综合性能与对照组基本相同,白度有所提高。
实施例3
一种改善耐候性铝银浆光泽效应的方法,包括以下步骤:
(1)按重量份准备原料,银铝浆100份、季戊四醇26份、硬脂酸锌2份、硅酸四乙酯8份、纳米膨润土8份、多壁碳纳米管2份、松脂27份、正硅酸乙酯0.5份、甲基丙烯酸甲酯2.4份、助剂0.8份;
(2)多壁碳纳米管酸处理,将多壁碳纳米管与酸溶液按2g/300mL的比例混合,在温度为38℃的条件下超声处理4小时,完成后用去离子水冲洗至中性,在温度为65℃的真空干燥箱中真空干燥2小时即可;
(3)将纳米膨润土在温度为160℃真空烘箱中烘干6小时备用;
(4)将上述处理后的纳米膨润土和多壁碳纳米管按重量配比混合后,放入球磨罐中密封,球磨罐经抽空后充入氮气进行球磨,球磨质量为比为35,转速为550转/分钟,球磨时间为5小时,得到混合粉料;
(5)将铝银浆分散在苯类溶剂中得到混合物,在90℃的条件下加入季戊四醇、硬脂酸锌、硅酸四乙酯,并以50转/分钟的转速搅拌10分钟,搅拌均匀后加入混合粉料,继续以50转/分钟的转速搅拌20分钟,静置30分钟,再依次加入松脂、正硅酸乙酯、甲基丙烯酸甲酯、助剂,经分次搅拌混合后,过滤,洗涤,烘干即可。
其中,所述助剂按重量份包括:油酸28份、聚丙烯醇50份、淀粉4份、硬脂酸18份,各原料在高混机中混合后,在52℃条件下以450℃ 搅拌15分钟,自然冷却至室温,即可;所述松脂在使用前经预处理,将松脂依次添加到质量浓度为1.84%的丙烯酸溶液中,浸泡5分钟,在43℃下以150r/min速度搅拌15分钟,过滤,然后添加到质量浓度为4.63%的丙烯酸溶液中,浸泡5分钟,在52℃下以150r/min速度搅拌15分钟,过滤,然后添加到质量浓度为7.25%的丙烯酸溶液中,浸泡5分钟,在64℃下以150r/min速度搅拌15分钟,过滤,洗涤,烘干,即可;所述正硅酸乙酯、甲基丙烯酸甲酯经过共混处理:将正硅酸乙酯、甲基丙烯酸甲酯添加到高混机中,添加混合物质量0.5%的辛二酸,在72℃下,以980r/min转速搅拌40分钟,静置1小时,即可;所述混合粉料的粒径为20-60nm。
其耐高温达到530-550℃,耐酸碱性达到206天,其白度为51,其综合性能与对照组基本相同,白度有所提高。
Claims (5)
1.一种改善耐候性铝银浆光泽效应的方法,其特征在于,包括以下步骤:
(1)按重量份准备原料,银铝浆100份、季戊四醇24-26份、硬脂酸锌1-2份、硅酸四乙酯8-10份、纳米膨润土6-8份、多壁碳纳米管1-2份、松脂25-27份、正硅酸乙酯0.5-1.2份、甲基丙烯酸甲酯1.6-2.4份、助剂0.4-0.8份;
(2)多壁碳纳米管酸处理,将多壁碳纳米管与酸溶液按2g/300mL的比例混合,在温度为38-42℃的条件下超声处理2-4小时,完成后用去离子水冲洗至中性,在温度为65-75℃的真空干燥箱中真空干燥2-4小时即可;
(3)将纳米膨润土在温度为160-180℃真空烘箱中烘干4-6小时备用;
(4)将上述处理后的纳米膨润土和多壁碳纳米管按重量配比混合后,放入球磨罐中密封,球磨罐经抽空后充入氮气进行球磨,球磨质量为比为30-35,转速为450-550转/分钟,球磨时间为3-5小时,得到混合粉料;
(5)将铝银浆分散在苯类溶剂中得到混合物,在80-90℃的条件下加入季戊四醇、硬脂酸锌、硅酸四乙酯,并以50转/分钟的转速搅拌10分钟,搅拌均匀后加入混合粉料,继续以50转/分钟的转速搅拌20分钟,静置30分钟,再依次加入松脂、正硅酸乙酯、甲基丙烯酸甲酯、助剂,经分次搅拌混合后,过滤,洗涤,烘干即可。
2. 如权利要求1所述一种改善耐候性铝银浆光泽效应的方法,其特征在于,所述助剂按重量份包括:油酸28份、聚丙烯醇50份、淀粉4份、硬脂酸18份,各原料在高混机中混合后,在52℃条件下以450℃ 搅拌15分钟,自然冷却至室温,即可。
3.如权利要求1所述一种改善耐候性铝银浆光泽效应的方法,其特征在于,所述松脂在使用前经预处理,将松脂依次添加到质量浓度为1.84%的丙烯酸溶液中,浸泡5分钟,在43℃下以150r/min速度搅拌15分钟,过滤,然后添加到质量浓度为4.63%的丙烯酸溶液中,浸泡5分钟,在52℃下以150r/min速度搅拌15分钟,过滤,然后添加到质量浓度为7.25%的丙烯酸溶液中,浸泡5分钟,在64℃下以150r/min速度搅拌15分钟,过滤,洗涤,烘干,即可。
4.如权利要求1所述一种改善耐候性铝银浆光泽效应的方法,其特征在于,所述正硅酸乙酯、甲基丙烯酸甲酯经过共混处理:将正硅酸乙酯、甲基丙烯酸甲酯添加到高混机中,添加混合物质量0.5%的辛二酸,在72℃下,以980r/min转速搅拌40分钟,静置1小时,即可。
5.如权利要求1所述一种改善耐候性铝银浆光泽效应的方法,其特征在于,所述混合粉料的粒径为20-60nm。
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