CN108635982A - 一种耐高温滤袋及其制备方法 - Google Patents

一种耐高温滤袋及其制备方法 Download PDF

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CN108635982A
CN108635982A CN201810293763.8A CN201810293763A CN108635982A CN 108635982 A CN108635982 A CN 108635982A CN 201810293763 A CN201810293763 A CN 201810293763A CN 108635982 A CN108635982 A CN 108635982A
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filter bag
heat resistance
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fiber
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余发来
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Jiangsu Tianyi Environmental Protection Technology Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/02Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D39/00Filtering material for liquid or gaseous fluids
    • B01D39/08Filter cloth, i.e. woven, knitted or interlaced material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D39/00Filtering material for liquid or gaseous fluids
    • B01D39/14Other self-supporting filtering material ; Other filtering material
    • B01D39/16Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1607Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
    • B01D39/1623Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
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    • B01D46/0001Making filtering elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
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    • B32B38/00Ancillary operations in connection with laminating processes
    • B32B38/18Handling of layers or the laminate
    • B32B38/1808Handling of layers or the laminate characterised by the laying up of the layers
    • BPERFORMING OPERATIONS; TRANSPORTING
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    • B32B5/02Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022Non-woven fabric
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
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    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/08Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer the fibres or filaments of a layer being of different substances, e.g. conjugate fibres, mixture of different fibres
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    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/047Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material made of fibres or filaments
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00Layers arrangement
    • B32B2250/20All layers being fibrous or filamentary
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00Coating on the layer surface
    • B32B2255/02Coating on the layer surface on fibrous or filamentary layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00Coating on the layer surface
    • B32B2255/26Polymeric coating
    • BPERFORMING OPERATIONS; TRANSPORTING
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    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00Coating on the layer surface
    • B32B2255/28Multiple coating on one surface
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02Composition of the impregnated, bonded or embedded layer
    • B32B2260/021Fibrous or filamentary layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02Synthetic macromolecular fibres
    • B32B2262/0246Acrylic resin fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
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    • B32B2262/0253Polyolefin fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
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    • B32B2262/0269Aromatic polyamide fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
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    • B32B2262/00Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/14Mixture of at least two fibres made of different materials
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/30Properties of the layers or laminate having particular thermal properties
    • B32B2307/306Resistant to heat
    • BPERFORMING OPERATIONS; TRANSPORTING
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    • B32B2307/70Other properties
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    • BPERFORMING OPERATIONS; TRANSPORTING
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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Filtering Materials (AREA)

Abstract

本发明公开了一种耐高温滤袋,包括滤袋本体和连接条,滤袋本体包括基布层,基布层为无纺布,基布层的外表面上设置有保护层,保护层由内至外依次包括有聚酰亚胺纤维、聚四氟乙烯纤维、亚克力纤维和芳砜纶纤维,芳砜纶纤维表面上还负载有TiO2纳米层,保护层的外表面上由内至外依次涂覆有耐高温涂料和防水涂料。本发明的滤袋经久耐用,具有良好的抗变形性能、耐高温性能、防水性和使用强度。

Description

一种耐高温滤袋及其制备方法
技术领域
本发明涉及滤袋加工技术领域,具体涉及一种耐高温滤袋及其制备方法。
背景技术
滤袋具有优异的化学性能稳定性和耐热性,是应用于滤料行业中最高性能的代表,也是所有常用过滤材料中性能最高端的品种,在过滤效率和过滤精度等方面均达到较高的水平,常用的滤材有PE、PP、PTFE、PMIA、NMO等。滤袋是袋式除尘器运行过程中的关键部分,通常圆筒型滤袋垂直地悬挂在除尘器中,滤袋的面料和设计应尽量追求高效过滤、易于粉尘剥离及经久耐用效果,在脉冲和气箱式脉冲除尘器中,粉尘是附着在滤袋的外表面,含尘气体经过除尘器时,粉尘被捕集在滤袋的外表面,而干净气体通过滤料进入滤袋内部,滤袋内部的笼架用来支撑滤袋,防止滤袋塌陷,同时有助于尘饼的清除和重新分布。
发明内容
为解决现有技术的不足,本发明的目的在于提供一种经久耐用,具有良好的抗变形性能、耐高温性能、防水性和使用强度的耐高温滤袋及其制备方法。
为了实现上述目标,本发明采用如下的技术方案:
一种耐高温滤袋,包括滤袋本体和连接条,滤袋本体包括基布层,基布层为无纺布,基布层的外表面上设置有保护层,保护层由内至外依次包括有聚酰亚胺纤维、聚四氟乙烯纤维、亚克力纤维和芳砜纶纤维,芳砜纶纤维表面上还负载有TiO2纳米层,保护层的外表面上由内至外依次涂覆有耐高温涂料和防水涂料。
优选地,前述耐高温涂料包括以下按重量份计的各组分:氧化镁18~22份、乙醇11~13份、六亚四甲基四胺15~20份、二甲基甲酰胺12~19份、碳化硅13~17份、二氧化锰8~14份和滑石粉5~7份。
再优选地,前述防水涂料包括以下按重量份计的各组分:聚乙烯醇26~34份、甲基丙烯酸甲酯17~27份、三乙醇胺12~21份、聚氯乙烯14~25份、氯化钠11~18份、丙烯酸酯8~13份和云母粉4~6份。
更优选地,前述连接条为无纺布裁剪而成,其厚度为1.5~2mm。
前述的一种耐高温滤袋的其制备方法,其特征在于,包括以下制备步骤:
S1、将无纺布洗净后浸泡于浸渍液中2~3.5h,浸泡温度为45~60℃,浸泡完成后取出,用清水洗净后烘干,冷却至室温;
S2、将芳砜纶纤维浸泡于盛有乙醇的反应釜中,将温度升至45~55℃,缓慢加入钛酸丁酯,搅拌均匀后加入冰乙酸、硝酸和柠檬酸,继续搅拌30~45min后,取出置于温度为60~65℃的烘箱中烘干1~1.5h,然后放入马弗炉中进行煅烧,煅烧完成后取出,冷却至室温;
S3、将聚酰亚胺纤维、聚四氟乙烯纤维、亚克力纤维和芳砜纶纤维通过针刺编织制成保护层,再将保护层放置于基布层上,通过针刺编织制成滤袋本体;
S4、将增粘剂放入胶料机中的胶桶中,通过胶料机对滤袋本体进行涂胶处理,将增粘剂均匀涂敷于滤袋本体缝合口的内表面上,涂胶完成后放入烘箱中进行干燥处理;
S5、将连接条通过粘胶贴覆于滤袋本体缝合口的外表面上,并用压辊滚压3~5遍,压辊贴合压强为0.03~0.07MPa;
S6、在滤袋本体的外表面分别涂覆耐高温涂料和防水涂料,各涂覆两遍,然后送入烘箱中进行干燥,干燥后冷却至室温,得到成品滤袋。
优选地,前述步骤S1中,浸渍液以下按重量份计的各组分:丙烯酸乙酯16~23份、硫酸锰12~17份、氯化铝13~15份和聚四氟乙烯11~19份。
再优选地,前述步骤S2中,乙醇、钛酸丁酯、冰乙酸、硝酸和柠檬酸的质量比为(1~3):(4~7):9:(2~5):3。
更优选地,前述步骤S2中,马弗炉的温度为400~550℃,煅烧时间为3.5~4.5h。
进一步优选地,前述步骤S4中,增粘剂包括以下按重量份计的各组分:聚四氟乙烯22~26份、烷基萘醛树脂13~21份、聚丁烯15~19份、乙醇8~17份、柠檬酸9~11份和有机硅橡胶5~13份。
具体地,前述步骤S4中,胶料机的上胶速度为10~13m/min,在涂胶完成后通过加热辊滚压滤袋的缝合口处,使增粘剂更均匀、更紧密的贴合于缝合口上,加热辊的温度为250~350℃,贴合压强为0.06~0.12MPa,线速度为12~15m/min。
本发明的有益之处在于:本发明的耐高温滤袋经久耐用,通过将基布层浸泡于浸渍液中以及在基布层外表面设置保护层,可以有效提高滤袋的抗变形性能;通过涂覆耐高温涂料和耐水涂料,可以大大提高滤袋的耐高温性能和防水性,提高了滤袋的使用寿命;在芳砜纶纤维表面上负载有TiO2纳米层,可进一步提高滤袋的耐高温性能;使用增粘剂粘固在滤袋缝合口的内表面上,提高了滤袋的使用质量,避免滤袋易开裂的情况,再将连接条黏在缝合口的外表面,可以进一步提高滤袋的使用强度,以提高其使用寿命。
具体实施方式
以下结合具体实施例对本发明作具体的介绍。
实施例1
一种耐高温滤袋,包括滤袋本体和连接条,连接条为无纺布裁剪而成,其厚度为1.5mm,滤袋本体包括基布层,基布层为无纺布,基布层的外表面上设置有保护层,保护层由内至外依次包括有聚酰亚胺纤维、聚四氟乙烯纤维、亚克力纤维和芳砜纶纤维,芳砜纶纤维表面上还负载有TiO2纳米层,保护层的外表面上由内至外依次涂覆有耐高温涂料和防水涂料。
耐高温涂料包括以下按重量份计的各组分:氧化镁18份、乙醇11份、六亚四甲基四胺15份、二甲基甲酰胺12份、碳化硅13份、二氧化锰8份和滑石粉5份。
防水涂料包括以下按重量份计的各组分:聚乙烯醇26份、甲基丙烯酸甲酯17份、三乙醇胺12份、聚氯乙烯14份、氯化钠11份、丙烯酸酯8份和云母粉4份。
耐高温滤袋的其制备方法,其特征在于,包括以下制备步骤:
S1、将无纺布洗净后浸泡于浸渍液中2h,浸泡温度为45℃,浸泡完成后取出,用清水洗净后烘干,冷却至室温;其中,浸渍液以下按重量份计的各组分:丙烯酸乙酯16份、硫酸锰12份、氯化铝13份和聚四氟乙烯11份;
S2、将芳砜纶纤维浸泡于盛有乙醇的反应釜中,将温度升至45℃,缓慢加入钛酸丁酯,搅拌均匀后加入冰乙酸、硝酸和柠檬酸,继续搅拌30min后,取出置于温度为60℃的烘箱中烘干1h,然后放入马弗炉中进行煅烧,马弗炉的温度为400℃,煅烧时间为3.5h,煅烧完成后取出,冷却至室温;其中,乙醇、钛酸丁酯、冰乙酸、硝酸和柠檬酸的质量比为1:4:9:2:3;
S3、将聚酰亚胺纤维、聚四氟乙烯纤维、亚克力纤维和芳砜纶纤维通过针刺编织制成保护层,再将保护层放置于基布层上,通过针刺编织制成滤袋本体;
S4、将增粘剂放入胶料机中的胶桶中,通过胶料机对滤袋本体进行涂胶处理,将增粘剂均匀涂敷于滤袋本体缝合口的内表面上,涂胶完成后放入烘箱中进行干燥处理;其中,增粘剂包括以下按重量份计的各组分:聚四氟乙烯22份、烷基萘醛树脂13份、聚丁烯15份、乙醇8份、柠檬酸9份和有机硅橡胶5份;胶料机的上胶速度为10m/min,在涂胶完成后通过加热辊滚压滤袋的缝合口处,使增粘剂更均匀、更紧密的贴合于缝合口上,加热辊的温度为250℃,贴合压强为0.06MPa,线速度为12m/min;
S5、将连接条通过粘胶贴覆于滤袋本体缝合口的外表面上,并用压辊滚压3遍,压辊贴合压强为0.03MPa;
S6、在滤袋本体的外表面分别涂覆耐高温涂料和防水涂料,各涂覆两遍,然后送入烘箱中进行干燥,干燥后冷却至室温,得到成品滤袋。
实施例2
一种耐高温滤袋,包括滤袋本体和连接条,连接条为无纺布裁剪而成,其厚度为2mm,滤袋本体包括基布层,基布层为无纺布,基布层的外表面上设置有保护层,保护层由内至外依次包括有聚酰亚胺纤维、聚四氟乙烯纤维、亚克力纤维和芳砜纶纤维,芳砜纶纤维表面上还负载有TiO2纳米层,保护层的外表面上由内至外依次涂覆有耐高温涂料和防水涂料。
耐高温涂料包括以下按重量份计的各组分:氧化镁22份、乙醇13份、六亚四甲基四胺20份、二甲基甲酰胺19份、碳化硅17份、二氧化锰14份和滑石粉7份。
防水涂料包括以下按重量份计的各组分:聚乙烯醇34份、甲基丙烯酸甲酯27份、三乙醇胺21份、聚氯乙烯25份、氯化钠18份、丙烯酸酯13份和云母粉6份。
耐高温滤袋的其制备方法,其特征在于,包括以下制备步骤:
S1、将无纺布洗净后浸泡于浸渍液中3.5h,浸泡温度为60℃,浸泡完成后取出,用清水洗净后烘干,冷却至室温;其中,浸渍液以下按重量份计的各组分:丙烯酸乙酯23份、硫酸锰17份、氯化铝15份和聚四氟乙烯19份;
S2、将芳砜纶纤维浸泡于盛有乙醇的反应釜中,将温度升至55℃,缓慢加入钛酸丁酯,搅拌均匀后加入冰乙酸、硝酸和柠檬酸,继续搅拌45min后,取出置于温度为65℃的烘箱中烘干1.5h,然后放入马弗炉中进行煅烧,马弗炉的温度为550℃,煅烧时间为4.5h,煅烧完成后取出,冷却至室温;其中,乙醇、钛酸丁酯、冰乙酸、硝酸和柠檬酸的质量比为3:7:9:5:3;
S3、将聚酰亚胺纤维、聚四氟乙烯纤维、亚克力纤维和芳砜纶纤维通过针刺编织制成保护层,再将保护层放置于基布层上,通过针刺编织制成滤袋本体;
S4、将增粘剂放入胶料机中的胶桶中,通过胶料机对滤袋本体进行涂胶处理,将增粘剂均匀涂敷于滤袋本体缝合口的内表面上,涂胶完成后放入烘箱中进行干燥处理;其中,增粘剂包括以下按重量份计的各组分:聚四氟乙烯26份、烷基萘醛树脂21份、聚丁烯19份、乙醇17份、柠檬酸11份和有机硅橡胶13份;胶料机的上胶速度为13m/min,在涂胶完成后通过加热辊滚压滤袋的缝合口处,使增粘剂更均匀、更紧密的贴合于缝合口上,加热辊的温度为350℃,贴合压强为0.12MPa,线速度为15m/min;
S5、将连接条通过粘胶贴覆于滤袋本体缝合口的外表面上,并用压辊滚压5遍,压辊贴合压强为0.07MPa;
S6、在滤袋本体的外表面分别涂覆耐高温涂料和防水涂料,各涂覆两遍,然后送入烘箱中进行干燥,干燥后冷却至室温,得到成品滤袋。
实施例3
一种耐高温滤袋,包括滤袋本体和连接条,连接条为无纺布裁剪而成,其厚度为1.7mm,滤袋本体包括基布层,基布层为无纺布,基布层的外表面上设置有保护层,保护层由内至外依次包括有聚酰亚胺纤维、聚四氟乙烯纤维、亚克力纤维和芳砜纶纤维,芳砜纶纤维表面上还负载有TiO2纳米层,保护层的外表面上由内至外依次涂覆有耐高温涂料和防水涂料。
耐高温涂料包括以下按重量份计的各组分:氧化镁20份、乙醇12份、六亚四甲基四胺17份、二甲基甲酰胺15份、碳化硅15份、二氧化锰11份和滑石粉6份。
防水涂料包括以下按重量份计的各组分:聚乙烯醇30份、甲基丙烯酸甲酯21份、三乙醇胺17份、聚氯乙烯19份、氯化钠15份、丙烯酸酯10份和云母粉5份。
耐高温滤袋的其制备方法,其特征在于,包括以下制备步骤:
S1、将无纺布洗净后浸泡于浸渍液中2.5h,浸泡温度为55℃,浸泡完成后取出,用清水洗净后烘干,冷却至室温;其中,浸渍液以下按重量份计的各组分:丙烯酸乙酯19份、硫酸锰15份、氯化铝14份和聚四氟乙烯15份;
S2、将芳砜纶纤维浸泡于盛有乙醇的反应釜中,将温度升至50℃,缓慢加入钛酸丁酯,搅拌均匀后加入冰乙酸、硝酸和柠檬酸,继续搅拌40min后,取出置于温度为62℃的烘箱中烘干1.2h,然后放入马弗炉中进行煅烧,马弗炉的温度为500℃,煅烧时间为4h,煅烧完成后取出,冷却至室温;其中,乙醇、钛酸丁酯、冰乙酸、硝酸和柠檬酸的质量比为2:5:9:3:3;
S3、将聚酰亚胺纤维、聚四氟乙烯纤维、亚克力纤维和芳砜纶纤维通过针刺编织制成保护层,再将保护层放置于基布层上,通过针刺编织制成滤袋本体;
S4、将增粘剂放入胶料机中的胶桶中,通过胶料机对滤袋本体进行涂胶处理,将增粘剂均匀涂敷于滤袋本体缝合口的内表面上,涂胶完成后放入烘箱中进行干燥处理;其中,增粘剂包括以下按重量份计的各组分:聚四氟乙烯24份、烷基萘醛树脂18份、聚丁烯17份、乙醇13份、柠檬酸10份和有机硅橡胶9份;胶料机的上胶速度为12m/min,在涂胶完成后通过加热辊滚压滤袋的缝合口处,使增粘剂更均匀、更紧密的贴合于缝合口上,加热辊的温度为300℃,贴合压强为0.09MPa,线速度为14m/min;
S5、将连接条通过粘胶贴覆于滤袋本体缝合口的外表面上,并用压辊滚压4遍,压辊贴合压强为0.05MPa;
S6、在滤袋本体的外表面分别涂覆耐高温涂料和防水涂料,各涂覆两遍,然后送入烘箱中进行干燥,干燥后冷却至室温,得到成品滤袋。
对比例1
选择市售的普通滤袋做对比例。
性能检测
通过上表的检测结果可知,本发明的滤袋具有良好的耐高温性能,且具有很高的使用强度,不易被折损。
本发明的耐高温滤袋经久耐用,通过将基布层浸泡于浸渍液中以及在基布层外表面设置保护层,可以有效提高滤袋的抗变形性能;通过涂覆耐高温涂料和耐水涂料,可以大大提高滤袋的耐高温性能和防水性,提高了滤袋的使用寿命;在芳砜纶纤维表面上负载有TiO2纳米层,可进一步提高滤袋的耐高温性能;使用增粘剂粘固在滤袋缝合口的内表面上,提高了滤袋的使用质量,避免滤袋易开裂的情况,再将连接条黏在缝合口的外表面,可以进一步提高滤袋的使用强度,以提高其使用寿命。
以上显示和描述了本发明的基本原理、主要特征和优点。本行业的技术人员应该了解,上述实施例不以任何形式限制本发明,凡采用等同替换或等效变换的方式所获得的技术方案,均落在本发明的保护范围内。

Claims (10)

1.一种耐高温滤袋,包括滤袋本体和连接条,其特征在于,所述滤袋本体包括基布层,所述基布层为无纺布,基布层的外表面上设置有保护层,所述保护层由内至外依次包括有聚酰亚胺纤维、聚四氟乙烯纤维、亚克力纤维和芳砜纶纤维,所述芳砜纶纤维表面上还负载有TiO2纳米层,所述保护层的外表面上由内至外依次涂覆有耐高温涂料和防水涂料。
2.根据权利要求1所述的一种耐高温滤袋,其特征在于,所述耐高温涂料包括以下按重量份计的各组分:氧化镁18~22份、乙醇11~13份、六亚四甲基四胺15~20份、二甲基甲酰胺12~19份、碳化硅13~17份、二氧化锰8~14份和滑石粉5~7份。
3.根据权利要求1所述的一种耐高温滤袋,其特征在于,所述防水涂料包括以下按重量份计的各组分:聚乙烯醇26~34份、甲基丙烯酸甲酯17~27份、三乙醇胺12~21份、聚氯乙烯14~25份、氯化钠11~18份、丙烯酸酯8~13份和云母粉4~6份。
4.根据权利要求1所述的一种耐高温滤袋,其特征在于,所述连接条为无纺布裁剪而成,其厚度为1.5~2mm。
5.如权利要求1所述的一种耐高温滤袋的其制备方法,其特征在于,包括以下制备步骤:
S1、将无纺布洗净后浸泡于浸渍液中2~3.5h,浸泡温度为45~60℃,浸泡完成后取出,用清水洗净后烘干,冷却至室温;
S2、将芳砜纶纤维浸泡于盛有乙醇的反应釜中,将温度升至45~55℃,缓慢加入钛酸丁酯,搅拌均匀后加入冰乙酸、硝酸和柠檬酸,继续搅拌30~45min后,取出置于温度为60~65℃的烘箱中烘干1~1.5h,然后放入马弗炉中进行煅烧,煅烧完成后取出,冷却至室温;
S3、将聚酰亚胺纤维、聚四氟乙烯纤维、亚克力纤维和芳砜纶纤维通过针刺编织制成保护层,再将保护层放置于基布层上,通过针刺编织制成滤袋本体;
S4、将增粘剂放入胶料机中的胶桶中,通过胶料机对滤袋本体进行涂胶处理,将增粘剂均匀涂敷于滤袋本体缝合口的内表面上,涂胶完成后放入烘箱中进行干燥处理;
S5、将连接条通过粘胶贴覆于滤袋本体缝合口的外表面上,并用压辊滚压3~5遍,压辊贴合压强为0.03~0.07MPa;
S6、在滤袋本体的外表面分别涂覆耐高温涂料和防水涂料,各涂覆两遍,然后送入烘箱中进行干燥,干燥后冷却至室温,得到成品滤袋。
6.根据权利要求5所述的一种耐高温滤袋的其制备方法,其特征在于,所述步骤S1中,浸渍液以下按重量份计的各组分:丙烯酸乙酯16~23份、硫酸锰12~17份、氯化铝13~15份和聚四氟乙烯11~19份。
7.根据权利要求5所述的一种耐高温滤袋的其制备方法,其特征在于,所述步骤S2中,乙醇、钛酸丁酯、冰乙酸、硝酸和柠檬酸的质量比为(1~3):(4~7):9:(2~5):3。
8.根据权利要求5所述的一种耐高温滤袋的其制备方法,其特征在于,所述步骤S2中,马弗炉的温度为400~550℃,煅烧时间为3.5~4.5h。
9.根据权利要求5所述的一种耐高温滤袋的其制备方法,其特征在于,所述步骤S4中,增粘剂包括以下按重量份计的各组分:聚四氟乙烯22~26份、烷基萘醛树脂13~21份、聚丁烯15~19份、乙醇8~17份、柠檬酸9~11份和有机硅橡胶5~13份。
10.根据权利要求5所述的一种耐高温滤袋的其制备方法,其特征在于,所述步骤S4中,胶料机的上胶速度为10~13m/min,在涂胶完成后通过加热辊滚压滤袋的缝合口处,使增粘剂更均匀、更紧密的贴合于缝合口上,加热辊的温度为250~350℃,贴合压强为0.06~0.12MPa,线速度为12~15m/min。
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CN110280076A (zh) * 2019-07-16 2019-09-27 安徽中电环保材料股份有限公司 一种耐高温高效滤袋及其制备方法
CN110641821A (zh) * 2019-09-27 2020-01-03 杭州蒸气波网络科技有限公司 用于包装食品的包装袋

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