CN111410510A - 一种抗菌紫砂壶的制造工艺 - Google Patents

一种抗菌紫砂壶的制造工艺 Download PDF

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CN111410510A
CN111410510A CN202010317900.4A CN202010317900A CN111410510A CN 111410510 A CN111410510 A CN 111410510A CN 202010317900 A CN202010317900 A CN 202010317900A CN 111410510 A CN111410510 A CN 111410510A
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林志强
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Fujian Quanzhou Dashengyao Ceramics Co ltd
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Abstract

本发明公开了一种抗菌紫砂壶的制造工艺,包括以下步骤:S1、选取原料,其包括以下重量份的的物质:桂宝石3~8份、麦饭石12~20份、海鸥石3~9份、载银碳纳米管/硅藻土2~6份、载银凹凸棒土3~5份、其余为紫砂泥;S2、将各个原料混合,和水混练,得到泥料,然后将泥料制成紫砂壶坯体;S3、真空干燥:将制好的紫砂壶坯体置于真空下于100~800℃内干燥;S4、真空焙烧。本发明不仅具有优异的抗菌性能和抗菌持久性,还能够通过释放负离子和对人体有益的多种微量元素,有效降低水质氧化还原电位、消毒、杀菌、中和pH值,达到活化水质、改善水质的目的,长期饮用,能够增强肌体抗病能力,提高人体免疫力。

Description

一种抗菌紫砂壶的制造工艺
技术领域
本发明涉及茶具制造技术领域,尤其涉及一种抗菌紫砂壶的制造工艺。
背景技术
茶具是中国人必不可少的日常用品,按材质分有玻璃、陶瓷、金属等,紫砂壶是介于陶器与瓷器之间的陶瓷制品,它具有结构致密、强度较大、抗热震性、透气性好的特点,用紫砂做成的茶具是全世界公认为最好的茶具。
但紫砂壶如放置一段时间不用,就会发现壶内壁发霉。壶内壁之所以会发霉,就是细菌大量繁殖的结果。另外随着人们对养生保健的不断重视,对于紫砂壶性能要求更高,如紫砂壶能够消除水中的重金属,改善水的口感,提升水中的负离子含量等等,而传统的紫砂壶除透气性好外,对人体没有额外的保健作用,无法满足这些需求。所以,如能对紫砂壶的壶体进行改性,使壶体本身对人体无毒无害,也不会产生异味,同时又能够抑制细菌繁殖或杀灭细菌,同时还能够改善水质,对人体有保健作用,则将是一个很有意义的技术进步。
发明内容
本发明的目的是为了解决现有技术中存在的缺点,而提出的一种抗菌紫砂壶的制造工艺。
本发明是通过以下的技术方案实现的:
一种抗菌紫砂壶的制造工艺,包括以下步骤:
S1、选取原料,其包括以下重量份的的物质:桂宝石3~8份、麦饭石12~20份、海鸥石3~9份、载银碳纳米管/硅藻土2~6份、载银凹凸棒土3~5份、其余为紫砂泥;
S2、将各个原料混合,和水混练,得到泥料,然后将泥料制成紫砂壶坯体;
S3、真空干燥:将制好的紫砂壶坯体置于真空下于50~800℃内干燥;
S4、真空焙烧:将真空干燥后的紫砂壶置于真空下于800~1200℃内焙烧,得到抗菌紫砂壶。
优选的,步骤S2中,制作的紫砂壶坯体的具体步骤为将海鸥石、桂宝石混合均匀,粉碎,湿法球磨,直至将混合的各组分研磨至100~200目细粒,喷雾干燥,得到混合物Ⅰ;将麦饭石球磨制成不小于2000目的微颗粒,用水将其粘湿,与所述混合物Ⅰ混合搅拌,使包含海鸥石粉和桂宝石粉的混合物Ⅰ充分包覆在麦饭石粉微粒上,得到混合物Ⅱ;将紫砂泥、混合物颗粒Ⅱ、载银碳纳米管/硅藻土、载银凹凸棒土粉末和水进行混练,然后将泥料制成紫砂壶坯体。
优选的,所述湿法球磨的球磨介质为乙醇和水混合物,直至将混合的各组分研磨至100~150目细粒,将麦饭石球磨制成微颗粒的粒径为2000~2500目,所述混合物Ⅰ的含水量为1.5~3.6%。
优选的,所述载银凹凸棒土的粒径为80~200μm,其制备方法包括以下步骤:将凹凸棒土与水混合制成凹凸棒土悬浮液,所述凹凸棒土悬浮液中凹凸棒土的质量浓度为不超过10%;将硝酸银加入到凹凸棒土悬浮液中,热处理;喷雾干燥,得到载银凹凸棒土。
优选的,所述凹凸棒土为热活化及分散处理的凹凸棒土,所述热活化处理可以采用焙烧法,焙烧温度为300~450℃,焙烧时间15~30min;所述凹凸棒土悬浮液中凹凸棒土的质量浓度为3~7%,所述硝酸银与凹凸棒土的质量比为10~27:20,所述热处理温度为60~90℃,所述热处理时间为1~4h。
优选的,所述载银碳纳米管/硅藻土的粒径为30~200μm、其制备方法包括以下步骤:将硅藻土加入0.5~1.5mol/L的Fe(NO3)3溶液中,搅拌混合、抽滤,干燥,得到固体粉末;将固体粉末在氮气气氛下升温至450~500℃,通入氮气和氢气的混合气体,保温1.5~3h,然后升温至680~720℃,通入混有氮气、氢气和碳源气体的混合气体,保温30~60min,冷却至室温,得到黑色固体;将黑色固体粉末在300~400℃下进行退火处理,冷却后加入到20~30%的硝酸溶液中,在80~100℃条件下进行酸化处理,洗涤后干燥,研磨过筛,得到黑色粉末;向黑色粉末中加入浓度为0.05~0.30mol/L的AgNO3溶液,超声分散,调整pH值至6~7,常温下反应3~5h,反应结束后,离心分离,用去离子水洗涤至洗液中无Ag+离子,干燥,得到载银碳纳米管/硅藻土。
优选的,所述硅藻土和催化剂溶液的固液比为1:5~1:10,所述碳源气体为甲烷和一氧化碳的混合气体,所述甲烷和一氧化碳的体积比为2~5:1,所述通入气体的流速为:碳源气体200~400ml/min、氢气300~500ml/min、氮气为600~1000ml/min。
优选的,步骤S3中,所述真空的压力为30~180Pa,进一步优选为50~100Pa;所述真空干燥的温度为150~780℃,进一步优选为200~650℃;所述真空干燥的时间为15~70h,进一步优选为20~50h。
优选的,步骤S4中,所述真空的压力为20~180Pa,进一步优选为30~100Pa;所述真空焙烧的温度为900~1150℃,进一步优选为950~1050℃;所述真空焙烧的时间为2~8h,进一步优选为3~7h。
本发明的目的之二还在于提供一种抗菌紫砂壶,所述抗菌紫砂壶由上述工艺制备得到。
与现有技术相比,本发明具有如下有益效果:
(1)本发明以紫砂泥为主料,配以海鸥石、桂宝石、麦饭石,利用它们所具有的释放负离子功能和生物活性(能强有力地吸附水中有毒有害物质和空气中的异味,还能向水体缓慢地释放出对人体有益的多种微量元素,并能够吸附一定的有害物质等功能),同时还加入了载银碳纳米管/硅藻土、载银凹凸棒土作为填料(利用它们具有的抗菌性、吸附性能、力学性能),通过将上述各个原料协同配合,制备了一种抗菌紫砂壶,其通过不断地缓释出银粒子,具有优异的抗菌性能和抗菌持久性;还通过释放负离子和对人体有益的多种微量元素,能够有效降低水质氧化还原电位、消毒、杀菌、中和pH值,达到活化水质、改善水质的目的,长期饮用,能够增强肌体抗病能力,提高人体免疫力,同时还具有优异的力学性能(碳纳米管具有增强增韧的作用)。
(2)本发明中,利用化学气相沉积技术将碳纳米管负载到硅藻土表面,然后经硝酸氧化处理后,与硝酸银溶液混合吸附,得到载银碳纳米管/硅藻土,不仅解决了碳纳米管在紫砂泥中分散均匀性差的问题,得到的载银碳纳米管/硅藻土整体在紫砂泥中具有优异的分散状态,从而提高了抗菌紫砂壶的力学性能,同时载银碳纳米管/硅藻土,作为抗菌剂,通过以碳纳米管和硅藻土作为支撑载体,将银粒子固定在载体上,能够消除银粒子的团聚现象,解决银粒子相互团聚失活的问题,提高银粒子的抗菌活性;再与载银凹凸棒土抗菌剂进行复配后,两者相互协同,大大提高了整体抗菌性和抗菌持久性,同时使得制得的抗菌紫砂壶还具有优异的保温性能、耐高温和耐候性能。
具体实施方式
下面结合具体实施例对本发明作进一步解说。
实施例1
S1、选取原料,其包括以下重量份的的物质:桂宝石5份、麦饭石15份、海鸥石6份、载银碳纳米管/硅藻土(粒径为100μm)3份、载银凹凸棒土(粒径为80μm)5份、其余为紫砂泥;S2、将海鸥石、桂宝石混合均匀,粉碎,湿法球磨,湿法球磨的球磨介质为乙醇和水混合物,直至将混合的各组分研磨至150目细粒,喷雾干燥,得到含水量为1.5%的混合物Ⅰ;将麦饭石球磨制成2000目的微颗粒,用水将其粘湿,与混合物Ⅰ混合搅拌,使包含海鸥石粉和桂宝石粉的混合物Ⅰ充分包覆在麦饭石粉微粒上,得到混合物Ⅱ;将紫砂泥、混合物颗粒Ⅱ、载银碳纳米管/硅藻土、载银凹凸棒土粉末和水进行混练,然后将泥料制成紫砂壶坯体;S3、真空干燥:将制好的紫砂壶坯体置于真空的压力为30Pa,温度为780℃下干燥50h;S4、真空焙烧:将真空干燥后的紫砂壶置于真空的压力为30Pa,温度为1150℃内焙烧7h,得到抗菌紫砂壶。
实施例2
S1、选取原料,其包括以下重量份的的物质:桂宝石3份、麦饭石20份、海鸥石9份、载银碳纳米管/硅藻土(粒径为200μm)6份、载银凹凸棒土(粒径为150μm)3份、其余为紫砂泥;S2、将海鸥石、桂宝石混合均匀,粉碎,湿法球磨,湿法球磨的球磨介质为乙醇和水混合物,直至将混合的各组分研磨至100目细粒,喷雾干燥,得到含水量为2.5%的混合物Ⅰ;将麦饭石球磨制成2200目的微颗粒,用水将其粘湿,与混合物Ⅰ混合搅拌,使包含海鸥石粉和桂宝石粉的混合物Ⅰ充分包覆在麦饭石粉微粒上,得到混合物Ⅱ;将紫砂泥、混合物颗粒Ⅱ、载银碳纳米管/硅藻土、载银凹凸棒土粉末和水进行混练,然后将泥料制成紫砂壶坯体;S3、真空干燥:将制好的紫砂壶坯体置于真空的压力为100Pa,温度为650℃下干燥70h;S4、真空焙烧:将真空干燥后的紫砂壶置于真空的压力为100Pa,温度为1050℃内焙烧3h,得到抗菌紫砂壶。
实施例3
S1、选取原料,其包括以下重量份的的物质:桂宝石8份、麦饭石12份、海鸥石3份、载银碳纳米管/硅藻土(粒径为30μm)2份、载银凹凸棒土(粒径为100μm)5份、其余为紫砂泥;S2将海鸥石、桂宝石混合均匀,粉碎,湿法球磨,湿法球磨的球磨介质为乙醇和水混合物,直至将混合的各组分研磨至200目细粒,喷雾干燥,得到含水量为3.0%的混合物Ⅰ;将麦饭石球磨制成2500目的微颗粒,用水将其粘湿,与混合物Ⅰ混合搅拌,使包含海鸥石粉和桂宝石粉的混合物Ⅰ充分包覆在麦饭石粉微粒上,得到混合物Ⅱ;将紫砂泥、混合物颗粒Ⅱ、载银碳纳米管/硅藻土、载银凹凸棒土粉末和水进行混练,然后将泥料制成紫砂壶坯体;S3、真空干燥:将制好的紫砂壶坯体置于真空的压力为180Pa,温度为550℃下干燥15h;S4、真空焙烧:将真空干燥后的紫砂壶置于真空的压力为180Pa,温度为900℃内焙烧5h,得到抗菌紫砂壶。
实施例4
S1、选取原料,其包括以下重量份的的物质:桂宝石5份、麦饭石15份、海鸥石6份、载银碳纳米管/硅藻土(粒径为180μm)4份、载银凹凸棒土(粒径为200μm)4份、其余为紫砂泥;S2、同实施例2;S3、真空干燥:将制好的紫砂壶坯体置于真空的压力为20Pa,温度为150℃下干燥30h;S4、真空焙烧:将真空干燥后的紫砂壶置于真空的压力为100Pa,温度为900℃内焙烧2h,得到抗菌紫砂壶。
实施例5
S1、选取原料,其包括以下重量份的的物质:桂宝石6份、麦饭石15份、海鸥石6份、载银碳纳米管/硅藻土(粒径为100μm)3份、载银凹凸棒土(粒径为100μm)5份、其余为紫砂泥;S2、同实施例3;S3、真空干燥:将制好的紫砂壶坯体置于真空的压力为30Pa,温度为650℃下干燥20h;S4、真空焙烧:将真空干燥后的紫砂壶置于真空的压力为30Pa,温度为1050℃内焙烧5h,得到抗菌紫砂壶。
抗菌抑菌性能和碱化水质性能
对实施例1~5方法制得的抑菌紫砂壶和对比例1市售紫砂壶进行抗菌抑菌性能和碱化水质性能检测,结果分别见下表1和表2。
表1
Figure DEST_PATH_IMAGE002A
从表1结果可得出,相比于市售的紫砂壶,本发明所制备得到的抗菌紫砂壶的抗菌抑菌性能和力学性能。
表2
Figure DEST_PATH_IMAGE004
与市售的紫砂壶的相比,本实施例1制备的紫砂壶能够有效的提高紫砂壶中水的pH值,而市售的紫砂壶中水的pH值基本保持不变,故本发明制备的的紫砂壶具备优异的碱化水质的功能。
利用本实施例1的紫砂壶作为饮茶或者饮水的壶具,由于杀菌和碱化水质均是对人体有益的,长期以往,人们在正常的饮茶或者饮水的过程中,能够起到很好的养生效果。
以上所述,仅为本发明较佳的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,根据本发明的技术方案及其发明构思加以等同替换或改变,都应涵盖在本发明的保护范围之内。

Claims (10)

1.一种抗菌紫砂壶的制造工艺,其特征在于,包括以下步骤:
S1、选取原料,其包括以下重量份的的物质:桂宝石3~8份、麦饭石12~20份、海鸥石3~9份、载银碳纳米管/硅藻土2~6份、载银凹凸棒土3~5份、其余为紫砂泥;
S2、将各个原料混合,和水混练,得到泥料,然后将泥料制成紫砂壶坯体;
S3、真空干燥:将制好的紫砂壶坯体置于真空下于100~800℃内干燥;
S4、真空焙烧:将真空干燥后的紫砂壶置于真空下于800~1200℃内焙烧,得到抗菌紫砂壶。
2.根据权利要求1所述的一种抗菌紫砂壶的制造工艺,其特征在于,步骤S2中,制作的紫砂壶坯体的具体步骤为将海鸥石、桂宝石混合均匀,粉碎,湿法球磨,直至将混合的各组分研磨至100~200目细粒,喷雾干燥,得到混合物Ⅰ;将麦饭石球磨制成不小于2000目的微颗粒,用水将其粘湿,与所述混合物Ⅰ混合搅拌,使包含海鸥石粉和桂宝石粉的混合物Ⅰ充分包覆在麦饭石粉微粒上,得到混合物Ⅱ;将紫砂泥、混合物颗粒Ⅱ、载银碳纳米管/硅藻土、载银凹凸棒土粉末和水进行混练,然后将泥料制成紫砂壶坯体。
3.根据权利要求2所述的一种抗菌紫砂壶的制造工艺,其特征在于,所述湿法球磨的球磨介质为乙醇和水混合物,直至将混合的各组分研磨至100~150目细粒,将麦饭石球磨制成微颗粒的粒径为2000~2500目,所述混合物Ⅰ的含水量为1.5~3.6%。
4.根据权利要求1所述的一种抗菌紫砂壶的制造工艺,其特征在于,所述载银凹凸棒土的粒径为80~200μm,其制备方法,包括以下步骤:将凹凸棒土与水混合制成凹凸棒土悬浮液,所述凹凸棒土悬浮液中凹凸棒土的质量浓度为不超过10%;将硝酸银加入到凹凸棒土悬浮液中,热处理;喷雾干燥,得到载银凹凸棒土。
5.根据权利要求4所述的一种抗菌紫砂壶的制造工艺,其特征在于,所述凹凸棒土为热活化及分散处理的凹凸棒土,所述热活化处理可以采用焙烧法,焙烧温度为300~450℃,焙烧时间15~30min;所述凹凸棒土悬浮液中凹凸棒土的质量浓度为3~7%,所述硝酸银与凹凸棒土的质量比为10~27:20,所述热处理温度为60~90℃,所述热处理时间为1~4h。
6.根据权利要求1所述的一种抗菌紫砂壶的制造工艺,其特征在于,所述载银碳纳米管/硅藻土的粒径为30~200μm,其制备方法,包括以下步骤:将硅藻土加入0.5~1.5mol/L的Fe(NO3)3溶液中,搅拌混合、抽滤,干燥,得到固体粉末;将固体粉末在氮气气氛下升温至450~500℃,通入氮气和氢气的混合气体,保温1.5~3h,然后升温至680~720℃,通入混有氮气、氢气和碳源气体的混合气体,保温30~60min,冷却至室温,得到黑色固体;将黑色固体粉末在300~400℃下进行退火处理,冷却后加入到20~30%的硝酸溶液中,在80~100℃条件下进行酸化处理,洗涤后干燥,研磨过筛,得到黑色粉末;向黑色粉末中加入浓度为0.05~0.30mol/L的AgNO3溶液,超声分散,调整pH值至6~7,常温下反应3~5h,反应结束后,离心分离,用去离子水洗涤至洗液中无Ag+离子,干燥,得到载银碳纳米管/硅藻土。
7.根据权利要求6所述的一种抗菌紫砂壶的制造工艺,其特征在于,所述硅藻土和催化剂溶液的固液比为1:5~1:10,所述碳源气体为甲烷和一氧化碳的混合气体,所述甲烷和一氧化碳的体积比为2-5:1,所述通入气体的流速为:碳源气体200~400ml/min、氢气300~500ml/min、氮气为600~1000ml/min。
8.根据权利要求1所述的一种抗菌紫砂壶的制造工艺,其特征在于,步骤S3中,所述真空的压力为30~180Pa,进一步优选为50~100Pa;所述真空干燥的温度为150~780℃,进一步优选为200~650℃;所述真空干燥的时间为15~70h,进一步优选为20~50h。
9.根据权利要求1所述的一种抗菌紫砂壶的制造工艺,其特征在于,步骤S4中,所述真空的压力为20~180Pa,进一步优选为30~100Pa;所述真空焙烧的温度为900~1150℃,进一步优选为950~1050℃;所述真空焙烧的时间为2~8h,进一步优选为3~7h。
10.一种抗菌紫砂壶,其特征在于,根据权利要求1~9任一项所述工艺制备。
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