CN114905821B - 一种具有防黏功能的pe隔离膜 - Google Patents

一种具有防黏功能的pe隔离膜 Download PDF

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CN114905821B
CN114905821B CN202210531912.6A CN202210531912A CN114905821B CN 114905821 B CN114905821 B CN 114905821B CN 202210531912 A CN202210531912 A CN 202210531912A CN 114905821 B CN114905821 B CN 114905821B
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slipping
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palmitoamide
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CN114905821A (zh
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姚顺宇
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Nantong Tiansheng Plastic Packaging Co ltd
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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
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/32Layered products comprising a layer of synthetic resin comprising polyolefins
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/92Measuring, controlling or regulating
    • 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
    • B32B7/00Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/02Physical, chemical or physicochemical properties
    • 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
    • B32B7/00Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04Interconnection of layers
    • B32B7/10Interconnection of layers at least one layer having inter-reactive properties
    • 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
    • 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
    • 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
    • B32B9/045Layered 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 of synthetic resin
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38Packaging materials of special type or form
    • B65D65/40Applications of laminates for particular packaging purposes
    • 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
    • B32B2307/70Other properties
    • B32B2307/746Slipping, anti-blocking, low friction
    • 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
    • B32B2439/00Containers; Receptacles

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Laminated Bodies (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

本发明公开了一种具有防黏功能的PE隔离膜,其结构包括骨架层以及设置在所述骨架层上下两面的爽滑层,其创新点在于:爽滑层采用油基棕榈酰胺制备而成,爽滑层在越靠近骨架层时,油基棕榈酰胺的浓度越高,在生产PE隔离膜时,优先配比若干份不同浓度的爽滑剂,最后将爽滑剂依据浓度的大小,从高到低依次和骨架层在三层共挤设备中一体挤压成型,本发明选择油基棕榈酰胺能够对PE隔离膜的防黏系数进行有效的控制,而通过对防黏系数的控制能够对PE隔离膜的防黏类型进行划分,不同防黏系数的PE隔离膜能够应用在不同的场景,满足了不同用户的实际需要。

Description

一种具有防黏功能的PE隔离膜
技术领域:
本发明涉及一种PE隔离膜的生产技术领域,尤其是一种具有防黏功能的PE隔离膜。
背景技术:
PE塑料隔离膜常用于复合软包装材料的内层薄膜,而且也是目前应用最广泛、用量最大的一种塑料包装薄膜,约占塑料包装薄膜耗用量的40%以上,其中,PE隔离膜的最重要的性能就是防黏,其作用于在于避免PE隔离膜粘在其他物品上,然而现有的PE隔离膜的防黏系数普遍在某个区间之间,而且区间的范围比较大,用户在购买时选择性比较单一,而不同用户在购买防黏的PE隔离膜时,所应用的场景也各不相同,而这种区间范围比较大的防黏PE隔离膜,难以满足不同用户的实际需要。
发明内容:
本发明的目的提供一种具有防黏功能的PE隔离膜,解决上述现有技术问题中的一个或者多个。
为解决上述技术问题,本发明提供了一种具有防黏功能的PE隔离膜,其结构包括骨架层以及设置在所述骨架层上下两面的爽滑层,其创新点在于:爽滑层采用油基棕榈酰胺制备而成,爽滑层在越靠近骨架层时,油基棕榈酰胺的浓度越高,在生产PE隔离膜时,优先配比若干份不同浓度的爽滑剂,最后将爽滑剂依据浓度的大小,从高到低依次和骨架层在三层共挤设备中一体挤压成型。
进一步的,上述爽滑剂包括开口剂、油基棕榈酰胺以及分散剂。
进一步的,上述爽滑剂一共三份,油基棕榈酰胺的浓度依次为75%、80%、85%。
进一步的,上述骨架层分别和三份爽滑剂挤压成型的温度依次为80-120℃、100-140℃、150-170℃。
进一步的,上述骨架层为PE颗粒。
进一步的,上述分散剂的数均分子量为3000-5000,熔点为100-108℃。
进一步的,上述分散剂为聚乙烯蜡。
进一步的,上述开口剂为空心玻璃微珠,空心玻璃微珠的平均粒径为5-10um。
本发明的有益效果在于:
1、本发明提供了一种具有防黏功能的PE隔离膜,油基棕榈酰胺属于仲酰胺类,这种具有较大分子量的氨类化合物有着较低的迁移速率,从而使得摩擦系数CFF值较为容易控制,因此,选择油基棕榈酰胺能够对PE隔离膜的防黏系数进行有效的控制,而通过对防黏系数的控制能够对PE隔离膜的防黏类型进行划分,不同防黏系数的PE隔离膜能够应用在不同的场景,满足了不同用户的实际需要。
2、本发明提供了一种具有防黏功能的PE隔离膜,爽滑剂在越靠近骨架层时,油基棕榈酰胺的浓度设置的越高,而油基棕榈酰胺的浓度越高,爽滑剂在骨架层上的扩散速度越快,有利于爽滑剂和骨架层的快速一体成型,而越是远离骨架层,油基棕榈酰胺的浓度设置的越低,能够避免爽滑层和骨架发生融合的现象,导致爽滑剂从薄膜的表面流失,保证了PE隔离膜的爽滑性能。
3、本发明提供了一种具有防黏功能的PE隔离膜,骨架层选择PE颗粒,PE隔离膜在成型时,在和油基棕榈酰胺浓度为85%的爽滑剂进行融合时,三层共挤设备中的温度为80-120℃,在和油基棕榈酰胺浓度为80%的爽滑剂进行融合时,三层共挤设备中的温度为100-140℃,在和油基棕榈酰胺浓度为75%的爽滑剂进行融合时,三层共挤设备中的温度为150-170℃,在上述过程中,PE颗粒在不同的温度下经过三次混炼,结构更为紧密,提高了骨架层的强度。
具体实施方式:
为了加深对本发明的理解,下面将结合实施例对本发明作进一步详述,该实施例仅用于解释本发明,并不构成对本发明保护范围的限定。
本发明提供了一种具有防黏功能的PE隔离膜,其结构包括骨架层以及设置在所述骨架层上下两面的爽滑层,爽滑层采用油基棕榈酰胺制备而成,爽滑层在越靠近骨架层时,油基棕榈酰胺的浓度越高,在生产PE隔离膜时,优先配比若干份不同浓度的爽滑剂,最后将爽滑剂依据浓度的大小,从高到低依次和骨架层在三层共挤设备中一体挤压成型。
在本发明中,作为优选方案,上述爽滑剂包括开口剂、油基棕榈酰胺以及分散剂。
在本发明中,作为优选方案,上述爽滑剂一共三份,油基棕榈酰胺的浓度依次为75%、80%、85%。
在本发明中,作为优选方案,上述骨架层分别和三份爽滑剂挤压成型的温度依次为80-120℃、100-140℃、150-170℃。
在本发明中,作为优选方案,上述骨架层为PE颗粒。
在本发明中,作为优选方案,上述分散剂的数均分子量为3000-5000,熔点为100-108℃。
在本发明中,作为优选方案,上述分散剂为聚乙烯蜡。
在本发明中,作为优选方案,上述开口剂为空心玻璃微珠,空心玻璃微珠的平均粒径为5-10um。
在本发明中,油基棕榈酰胺属于仲酰胺类,这种具有较大分子量的氨类化合物有着较低的迁移速率,从而使得摩擦系数CFF值较为容易控制,因此,选择油基棕榈酰胺能够对PE隔离膜的防黏系数进行有效的控制,而通过对防黏系数的控制能够对PE隔离膜的防黏类型进行划分,不同防黏系数的PE隔离膜能够应用在不同的场景,满足了不同用户的实际需要。
在本发明中,爽滑剂在越靠近骨架层时,油基棕榈酰胺的浓度设置的越高,而油基棕榈酰胺的浓度越高,爽滑剂在骨架层上的扩散速度越快,有利于爽滑剂和骨架层的快速一体成型,而越是远离骨架层,油基棕榈酰胺的浓度设置的越低,能够避免爽滑层和骨架发生融合的现象,导致爽滑剂从薄膜的表面流失,保证了PE隔离膜的爽滑性能。
在本发明中,骨架层选择PE颗粒,PE隔离膜在成型时,在和油基棕榈酰胺浓度为85%的爽滑剂进行融合时,三层共挤设备中的温度为80-120℃,在和油基棕榈酰胺浓度为80%的爽滑剂进行融合时,三层共挤设备中的温度为100-140℃,在和油基棕榈酰胺浓度为75%的爽滑剂进行融合时,三层共挤设备中的温度为150-170℃,在上述过程中,PE颗粒在不同的温度下经过三次混炼,结构更为紧密,提高了骨架层的强度。
本行业的技术人员应该了解,本发明不受上述实施例的限制,上述实施例和说明书中描述的只是说明本发明的原理,在不脱离本发明精神和范围的前提下,本发明还会有各种变化和改进,这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其等效物界定。

Claims (8)

1.一种具有防黏功能的PE隔离膜,其结构包括骨架层以及设置在所述骨架层上下两面的爽滑层,其特征在于:所述爽滑层采用油基棕榈酰胺制备而成,所述爽滑层在越靠近所述骨架层时,所述油基棕榈酰胺的浓度越高,在生产PE隔离膜时,优先配比若干份不同浓度的爽滑剂,最后将所述爽滑剂依据浓度的大小,从高到低依次和所述骨架层在三层共挤设备中一体挤压成型。
2.根据权利要求1所述的一种具有防黏功能的PE隔离膜,其特征在于:所述爽滑剂包括开口剂、油基棕榈酰胺以及分散剂。
3.根据权利要求2所述的一种具有防黏功能的PE隔离膜,其特征在于:所述爽滑剂一共三份,油基棕榈酰胺的浓度依次为75%、80%、85%。
4.根据权利要求1所述的一种具有防黏功能的PE隔离膜,其特征在于:所述骨架层分别和三份爽滑剂挤压成型的温度依次为80-120℃、100-140℃、150-170℃。
5.根据权利要求4所述的一种具有防黏功能的PE隔离膜,其特征在于:所述骨架层为PE颗粒。
6.根据权利要求2所述的一种具有防黏功能的PE隔离膜,其特征在于:所述分散剂的数均分子量为3000-5000,熔点为100-108℃。
7.根据权利要求6所述的一种具有防黏功能的PE隔离膜,其特征在于:所述分散剂为聚乙烯蜡。
8.根据权利要求2所述的一种具有防黏功能的PE隔离膜,其特征在于:所述开口剂为空心玻璃微珠,所述空心玻璃微珠的平均粒径为5-10um。
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