CN113214737A - 一种耐热涂层及其制备方法及不粘锅 - Google Patents
一种耐热涂层及其制备方法及不粘锅 Download PDFInfo
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Abstract
本申请涉及炊具的领域,具体公开了一种耐热涂层及其制备方法及不粘锅。一种耐热涂层由包含以下重量份的原料制成:聚四氟乙烯20‑40份;聚醚砜树脂22‑37份;云母粉1‑3份;纳米石墨烯3‑5份;气相二氧化硅1‑2份;流平剂1‑3份;分散剂2‑4份,其具有提升不粘锅涂层的耐热性的优点;一种耐热涂层的制备方法为:包括以下步骤:S1、按配比将聚四氟乙烯、聚醚砜树脂、云母粉、纳米石墨烯、气相二氧化硅、流平剂、分散剂、丙烯酸乳胶、甲壳素混合700‑900r/min搅拌1‑2h得到涂料;S2、将涂料喷涂于金属锅内层,然后将金属锅置于烘箱中,180‑250℃烘烤15min‑20min,得到耐热涂层。本申请的耐热涂层可用于生产不粘锅。
Description
技术领域
本申请涉及炊具的领域,更具体地说,它涉及一种耐热涂层及其制备方法及不粘锅。
背景技术
锅类产品主要有铝锅、不锈钢锅、铁搪瓷锅、铁锅和不粘锅。这些锅各有优缺点,其中不粘锅的优点最为突出。
现有的不粘锅是在铝合金锅表面涂覆了一层聚四氟乙烯树脂类,依靠聚四氟乙烯树脂类的强疏水性和低摩擦系数的特性,来实现食物不粘的。其虽然满足了不发生粘锅的现象,但是其涂层耐热性能较差,容易发生剥落和损坏。
发明内容
为了提升不粘锅涂层的耐热性,本申请提供一种耐热涂层及其制备方法及不粘锅。
本申请提供的一种耐热涂层及其制备方法及不粘锅采用如下的技术方案:
第一方面,本申请提供一种耐热涂层,采用如下的技术方案:
一种耐热涂层,由包含以下重量份的原料制成:聚四氟乙烯20-40份;聚醚砜树脂22-37份;云母粉1-3份;纳米石墨烯3-5份;气相二氧化硅1-2份;流平剂1-3份;分散剂2-4份。
通过采用上述技术方案,聚醚砜树脂具有良好的稳定性以及优异的耐热性,在长期高温下仍具有优良的可靠性,且无毒具有良好的安全性。由于聚醚砜与铁、铝等金属的附着力好,涂层表面硬度高等优点,聚醚砜与聚四氟乙烯可配制成耐腐蚀、防辐射、绝缘性能好,阻燃、无毒、与金属附着力佳、低摩擦的不粘涂料。
由于采用云母粉,云母粉具有良好的耐热性,因此,获得可提升不粘锅涂层的耐热性效果;同时,云母粉可作为填料,一方面可大大提升不粘锅涂层的综合性能,另一方面可降低整体成本。
由于采用纳米石墨烯,纳米石墨烯性质稳定,可提升涂层整体的稳定性,同时纳米石墨烯具有良好的导热性,从而提升不粘锅涂层的导热性。另外,纳米石墨烯成本低,同时也可作为填料,从而大大降低涂层的成本。
由于采用气相二氧化硅作为助剂,气相二氧化硅还可以提高涂层的整体强度,同时提升涂层的耐候性、抗划伤性,提高涂层与基材之间的结合强度。同时,气相二氧化硅具有极强的紫外线吸收、红外光反射特性,填加在涂料中能提高涂料的抗老化性能。且添加的气相二氧化硅设置有合理的添加量,可大大提升涂层的整体性能。
优选的,所述流平剂为聚醚改性硅油。
通过采用上述技术方案,聚醚改性硅油与本申请的原料之间具有较好的相容效果,从而提升涂料的流平性和均匀性,可使涂料在不粘锅涂层上形成平整、光滑、均匀的涂膜。
优选的,所述分散剂为NNF。
通过采用上述技术方案,分散剂NNF具有优异的分散性能,能直接作用于纳米石墨烯和云母粉和气相二氧化硅,避免发生团聚。且针对气相二氧化硅的团聚,分散剂NNF相比于其他分散剂具有更好地分散效果。
优选的,还包括甲壳素4-8份。
通过采用上述技术方案,甲壳素具有优良的抗菌效果,同时与云母粉同用时,可协同提升耐热性。
优选的,还包括丙烯酸乳胶17-24份。
通过采用上述技术方案,丙烯酸乳胶稳定性好,具有良好的耐候性、耐老化性、耐洗、耐酸碱、耐油脂性,且可与食品直接接触,安全性好。另外,丙烯酸乳胶还能提升涂膜的硬度、附着力及耐擦洗性。
第二方面,本申请提供一种耐热涂层的制备方法,采用如下的技术方案:
一种上述耐热涂层的制备方法,包括以下步骤:
S1、按配比将聚四氟乙烯、聚醚砜树脂、云母粉、纳米石墨烯、气相二氧化硅、流平剂、分散剂、丙烯酸乳胶、甲壳素混合700-900r/min搅拌1-2h得到涂料;
S2、将涂料喷涂于金属锅内层,然后将金属锅置于烘箱中,180-250℃烘烤15min-20min,得到耐热涂层。
优选的,S2中,烘烤温度220℃。
第三方面,本申请提供一种不粘锅,采用如下的技术方案:
一种不粘锅,包括上述耐热涂层。
综上所述,本申请具有以下有益效果:
1、由于采用云母粉,云母粉具有良好的耐热性,因此,获得可提升不粘锅涂层的耐热性效果;同时,云母粉可作为填料,一方面可大大提升不粘锅涂层的综合性能,另一方面可降低整体成本。
由于采用纳米石墨烯,纳米石墨烯性质稳定,可提升涂层整体的稳定性,同时纳米石墨烯具有良好的导热性,从而提升不粘锅涂层的导热性。另外,纳米石墨烯成本低,同时也可作为填料,从而大大降低涂层的成本。
由于采用气相二氧化硅作为助剂,气相二氧化硅还可以提高涂层的整体强度,同时提升涂层的耐候性、抗划伤性,提高涂层与基材之间的结合强度。同时,气相二氧化硅具有极强的紫外线吸收、红外光反射特性,填加在涂料中能提高涂料的抗老化性能。且添加的气相二氧化硅设置有合理的添加量,可大大提升涂层的整体性能。
2、本申请中优选采用NNF作为分散剂,由于能直接作用于纳米石墨烯和云母粉和气相二氧化硅,避免发生团聚。且针对气相二氧化硅的团聚,分散剂NNF相比于其他分散剂具有更好地分散效果。
具体实施方式
原料来源
实施例
实施例1
一种耐热涂层,由包含以下重量份的原料制成:聚四氟乙烯20份;聚醚砜树脂22份;云母粉1份;纳米石墨烯3份;气相二氧化硅1份;流平剂1份;分散剂2份;甲壳素4份;丙烯酸乳胶17份;其中,流平剂为聚醚改性硅油,分散剂为NNF。
一种耐热涂层的制备方法,包括以下步骤:
S1、按配比将聚四氟乙烯、聚醚砜树脂、云母粉、纳米石墨烯、气相二氧化硅、聚醚改性硅油、NNF混合700r/min搅拌1h得到涂料;
S2、将涂料喷涂于金属锅内层,然后将金属锅置于烘箱中,180℃烘烤15min,得到耐热涂层。
一种不粘锅,包括金属锅和喷涂于金属锅内层的上述耐热涂层。
实施例2
一种耐热涂层,由包含以下重量份的原料制成:聚四氟乙烯30份;聚醚砜树脂30份;云母粉2份;纳米石墨烯4份;气相二氧化硅1.5份;流平剂2份;分散剂3份;甲壳素6份;丙烯酸乳胶20份;其中,流平剂为聚醚改性硅油,分散剂为NNF。
一种耐热涂层的制备方法,包括以下步骤:
S1、按配比将聚四氟乙烯、聚醚砜树脂、云母粉、纳米石墨烯、气相二氧化硅、聚醚改性硅油、NNF混合800r/min搅拌1.5h得到涂料;
S2、将涂料喷涂于金属锅内层,然后将金属锅置于烘箱中,220℃烘烤17min,得到耐热涂层。
实施例3
一种耐热涂层,由包含以下重量份的原料制成:聚四氟乙烯20份;聚醚砜树脂22份;云母粉1份;纳米石墨烯3份;气相二氧化硅1份;流平剂1份;分散剂2份;甲壳素8份;丙烯酸乳胶24份;其中,实施例1中流平剂为聚醚改性硅油,分散剂为NNF。
一种耐热涂层的制备方法,包括以下步骤:
S1、按配比将聚四氟乙烯、聚醚砜树脂、云母粉、纳米石墨烯、气相二氧化硅、聚醚改性硅油、NNF混合900r/min搅拌2h得到涂料;
S2、将涂料喷涂于金属锅内层,然后将金属锅置于烘箱中,250℃烘烤20min,得到耐热涂层。
实施例4-9
与实施例1的区别在于原料组分和用量不同,具体见表1。
表1实施例4-9原料表
实施例1 | 实施例4 | 实施例5 | 实施例6 | 实施例7 | 实施例8 | 实施例9 | |
聚四氟乙烯 | 20 | 20 | 20 | 20 | 20 | 20 | 20 |
聚醚砜树脂 | 22 | 22 | 22 | 22 | 22 | 22 | 22 |
云母粉 | 1 | 1 | 1 | 3 | 1 | 1 | 1 |
纳米石墨烯 | 3 | 3 | 5 | 3 | 5 | 5 | 5 |
气相二氧化硅 | 1 | 2 | 1 | 1 | 2 | 2 | 2 |
流平剂 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
分散剂 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
甲壳素 | 4 | 4 | 4 | 4 | 4 | 6 | 6 |
丙烯酸乳胶 | 17 | 17 | 17 | 17 | 17 | 17 | 24 |
实施例10
与实施例1的区别在于原料中不包括甲壳素。
实施例11
与实施例1的区别在于原料中不包括丙烯酸乳胶。
实施例12
与实施例1的区别在于分散剂采用BYK162。
对比例
对比例1
与实施例1的区别在于原料中不包括纳米石墨烯。
对比例2
与实施例1的区别在于原料中不包括气相二氧化硅。
对比例3
与实施例1的区别在于原料中不包括云母粉。
对比例4
与实施例1的区别在于原料中气相二氧化硅加入3份。
性能检测试验
一、耐热性
根据GB/T 1735-2009《色漆和清漆耐热性的测定》中记载的方法,对实施例1-12和对比例1-4的耐热涂层进行耐热性测试,取实施例1-12和对比例1-4的不粘锅,每次升温10℃,保持10min,观察金属锅内层的耐热涂层外观出现鼓泡、熔融、开裂等异常现象时的温度。结果见表一。
二、耐磨性
根据GB/T 1768-1979《漆膜耐磨性测定法》中记载的方法,对实施例1-12和对比例1-4进行耐热涂层的耐磨性测试,负载总重量为500g,砂轮转数设定为300圈,检验实施例1-12和对比例1-4的不粘锅耐热涂层失重。检测结果见表2。
三、抗菌性
根据GB/T21866-2008《抗菌涂料(漆膜)抗菌性测定法和抗菌效果》中记载的方法,对实施例1-12和对比例1-4进行耐热涂层的抗菌性能(以菌落数计算)进行检测,检验对大肠埃希氏菌和金黄色葡萄球菌的抗菌率,检测结果见表2。
表2实施例1-12和对比例1-4检测结果表
本具体实施例仅仅是对本申请的解释,其并不是对本申请的限制,本领域技术人员在阅读完本说明书后可以根据需要对本实施例做出没有创造性贡献的修改,但只要在本申请的权利要求范围内都受到专利法的保护。
Claims (8)
1.一种耐热涂层,其特征在于,由包含以下重量份的原料制成:聚四氟乙烯20-40份;聚醚砜树脂22-37份;云母粉1-3份;纳米石墨烯3-5份;气相二氧化硅1-2份;流平剂1-3份;分散剂2-4份。
2.根据权利要求1所述的耐热涂层,其特征在于,所述流平剂为聚醚改性硅油。
3.根据权利要求1所述的耐热涂层,其特征在于,所述分散剂为NNF。
4.根据权利要求1所述的耐热涂层,其特征在于,还包括甲壳素4-8份。
5.根据权利要求1所述的耐热涂层,其特征在于,还包括丙烯酸乳胶17-24份。
6.一种权利要求1-5所述的耐热涂层的制备方法,其特征在于,包括以下步骤:
S1、按配比将聚四氟乙烯、聚醚砜树脂、云母粉、纳米石墨烯、气相二氧化硅、流平剂、分散剂、丙烯酸乳胶、甲壳素混合700-900r/min搅拌1-2h得到涂料;
S2、将涂料喷涂于金属锅内层,然后将金属锅置于烘箱中,180-250℃烘烤15min-20min,得到耐热涂层。
7.根据权利要求6所述的制备方法,其特征在于,S2中,烘烤温度220℃。
8.一种不粘锅,其特征在于,包括权利要求1-5任一项所述的耐热涂层。
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