CN105500869A - 一种防静电膜及其制备工艺 - Google Patents

一种防静电膜及其制备工艺 Download PDF

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CN105500869A
CN105500869A CN201610017169.7A CN201610017169A CN105500869A CN 105500869 A CN105500869 A CN 105500869A CN 201610017169 A CN201610017169 A CN 201610017169A CN 105500869 A CN105500869 A CN 105500869A
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layer
density polyethylene
ldpe
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static
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马莉娜
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DONGGUAN HUAYU PACKING Co Ltd
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
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    • B32B27/00—Layered products comprising a layer of synthetic resin
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    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B32B27/327—Layered products comprising a layer of synthetic resin comprising polyolefins comprising polyolefins obtained by a metallocene or single-site catalyst
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/15—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
    • B32B37/153—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state at least one layer is extruded and immediately laminated while in semi-molten state
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/0008—Electrical discharge treatment, e.g. corona, plasma treatment; wave energy or particle radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/0036—Heat treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/12—Deep-drawing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B43/00—Operations specially adapted for layered products and not otherwise provided for, e.g. repairing; Apparatus therefor
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    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/21—Anti-static
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/402—Coloured
    • B32B2307/404—Multi-coloured
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
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    • B32B2307/00—Properties of the layers or laminate
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Abstract

本发明提供了一种防静电膜，包括从上至下设置的抗静电PP层、染色PE层、抗静电PE层、抗紫外线PE层以及抗静电PP层。本发明设置有上、下两层抗静电PP层和中间的抗静电PE层，使抗静电效果更加明显；设置有染色PE层，满足彩色包装需要；设置有抗紫外线PE层，满足抗紫外线包装需要。

Description

一种防静电膜及其制备工艺
技术领域
本发明涉及薄膜材料领域，尤其涉及一种防静电膜及其制备方法。
背景技术
目前，薄膜类材料在包装的领域应用广泛，随着IT行业的迅速发展，也大量采用价廉物美的薄膜类材料包装，包装薄膜大量使用的各种塑料绝缘性高，容易产生静电，因此在电子产品的运输、储存的过程中，由于电磁感应和摩擦的原因，容易产生静电积累，使各种电子元件内部静电电位增高，产生高压放电现象，从而影响所包装的商品的质量，甚至对其造成破坏，造成经济损失。同时，缺乏足够柔韧性、抗震性的这类包装材料不能对电子产品提供足够的保护，也难以避免对产品造成的破坏。
发明内容
本发明要解决的技术问题是根据上述现有技术的不足，提供一种具有防静电功能包装用的薄膜及其制备工艺。
本发明的技术方案如下：
一种防静电膜，包括从上至下设置的抗静电PP层、染色PE层、抗静电PE层、抗紫外线PE层以及抗静电PP层。
进一步地，所述抗静电PP层的材料为三元共聚丙烯，所述染色PE层、抗静电PE层和抗紫外线PE层的材料为线性低密度聚乙烯薄膜。
进一步地，所述抗静电PP层厚度为20～80微米，所述染色PE层厚度为20～50微米，所述抗静电PE层厚度为20～80微米，所述染色PE层厚度为20～50微米。
一种如上述的防静电膜的制备工艺，其步骤如下：a.配料，b.熔融挤出，c.拉伸，d.冷却电晕，e.收卷分切；
a.配料:所述抗静电PP层的组分包括95～99%wt三元共聚丙烯和1～5%wt抗静电剂；所述染色PE层的组分46.5～48.5%wt茂金属低密度聚乙烯、46.5～48.5%wt低密度聚乙烯以及3～7%wt染色剂；所述抗静电PE层的组分46.5～48.5%wt茂金属低密度聚乙烯、46.5～48.5%wt低密度聚乙烯以及3～7%wt抗静电剂；所述抗紫外线PE层的组分46.5～48.5%wt茂金属低密度聚乙烯、46.5～48.5%wt低密度聚乙烯以及3～7%wt紫外线吸收剂；
b.熔融挤出：染色PE层、抗静电PE层和抗紫外线PE层的配料分别在三台主挤出机加热成熔融状态，抗静电PP层分别在两台辅助挤出机中加热成熔融状态，上述熔体分别经过过滤，在五层模头中汇合挤出厚片，挤出温度为165～215℃，挤出频率为20～45HZ；
c.拉伸：将冷却后的厚片预热后，在120～136℃下纵向拉伸4～5倍得到薄片；将纵向拉伸后的薄片预热后，在160～170℃下横向拉伸5～6倍得到薄膜；
d.冷却电晕：经拉伸后的薄膜冷却后进行表面电晕处理；
e.收卷分切：将电晕处理后的薄膜经牵引收成母卷，牵引速度为60～65M/min，最后分切成薄膜成品。
进一步地，所述三元共聚丙烯采用5C37F树脂，所述抗静电剂采用SAS93树脂；所述低密度聚乙烯采用4203树脂，所述茂金属低密度聚乙烯采用2045G树脂，所述染色剂采用JEY-3016树脂，所述紫外线吸收剂采用UV-327树脂。
与现有技术相比，本发明具有如下有益效果：本发明设置有上、下两层抗静电PP层和中间的抗静电PE层，使抗静电效果更加明显；设置有染色PE层，满足彩色包装需要；设置有抗紫外线PE层，满足抗紫外线包装需要。
附图说明
图1是本发明的局部剖面图。
附图标记
1、抗静电PP层，2、染色PE层，
3、抗静电PE层，4、抗紫外线PE层。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚，下面将结合附图对本发明作进一步地详细描述。
如图1所示，本发明提供的一种防静电膜，包括从上至下设置的抗静电PP层、染色PE层、抗静电PE层、抗紫外线PE层以及抗静电PP层。所述抗静电PP层的材料为三元共聚丙烯，所述染色PE层、抗静电PE层和抗紫外线PE层的材料为线性低密度聚乙烯薄膜。
所述抗静电PP层厚度为20～80微米，优选为50微米；所述染色PE层厚度为20～50微米，优选为20微米；所述抗静电PE层厚度为20～80微米，优选为50微米；所述染色PE层厚度为20～50微米，优选为20微米。
实施例1，一种如上述的防静电膜的制备工艺:
配料:所述抗静电PP层的组分包括950g三元共聚丙烯和50g抗静电剂；所述染色PE层的组分465g茂金属低密度聚乙烯、465g低密度聚乙烯以及70g染色剂；所述抗静电PE层的组分465g茂金属低密度聚乙烯、465g低密度聚乙烯以及70g抗静电剂；所述抗紫外线PE层的组分465g茂金属低密度聚乙烯、465g低密度聚乙烯以及70g紫外线吸收剂。其中，所述三元共聚丙烯采用5C37F树脂，所述抗静电剂采用SAS93树脂；所述低密度聚乙烯采用4203树脂，所述茂金属低密度聚乙烯采用2045G树脂，所述染色剂采用JEY-3016树脂，所述紫外线吸收剂采用UV-327树脂。
染色PE层、抗静电PE层和抗紫外线PE层的配料分别在三台主挤出机加热成熔融状态，抗静电PP层分别在两台辅助挤出机中加热成熔融状态，上述熔体分别经过过滤，在五层模头中汇合挤出厚片，挤出温度为165～215℃，挤出频率为20～45HZ。将冷却后的厚片预热后，在120～136℃下纵向拉伸5倍得到薄片；将纵向拉伸后的薄片预热后，在160～170℃下横向拉伸6倍得到薄膜。经拉伸后的薄膜冷却后进行表面电晕处理，将电晕处理后的薄膜经牵引收成母卷，牵引速度为62M/min，最后分切成薄膜成品。
实施例2，一种如上述的防静电膜的制备工艺:
配料:所述抗静电PP层的组分包括990g三元共聚丙烯和10g抗静电剂；所述染色PE层的组分485g茂金属低密度聚乙烯、485g低密度聚乙烯以及30g染色剂；所述抗静电PE层的组分485g茂金属低密度聚乙烯、485g低密度聚乙烯以及30g抗静电剂；所述抗紫外线PE层的组分485g茂金属低密度聚乙烯、485g低密度聚乙烯以及30g紫外线吸收剂。其中，所述三元共聚丙烯采用5C37F树脂，所述抗静电剂采用SAS93树脂；所述低密度聚乙烯采用4203树脂，所述茂金属低密度聚乙烯采用2045G树脂，所述染色剂采用JEY-3016树脂，所述紫外线吸收剂采用UV-327树脂。
染色PE层、抗静电PE层和抗紫外线PE层的配料分别在三台主挤出机加热成熔融状态，抗静电PP层分别在两台辅助挤出机中加热成熔融状态，上述熔体分别经过过滤，在五层模头中汇合挤出厚片，挤出温度为165～215℃，挤出频率为20～45HZ。将冷却后的厚片预热后，在120～136℃下纵向拉伸4.5倍得到薄片；将纵向拉伸后的薄片预热后，在160～170℃下横向拉伸5.5倍得到薄膜。经拉伸后的薄膜冷却后进行表面电晕处理，将电晕处理后的薄膜经牵引收成母卷，牵引速度为60～65M/min，最后分切成薄膜成品。
实施例3，一种如上述的防静电膜的制备工艺:
配料:所述抗静电PP层的组分包括980g三元共聚丙烯和20g抗静电剂；所述染色PE层的组分470g茂金属低密度聚乙烯、470g低密度聚乙烯以及60g染色剂；所述抗静电PE层的组分470g茂金属低密度聚乙烯、470g低密度聚乙烯以及60g抗静电剂；所述抗紫外线PE层的组分470g茂金属低密度聚乙烯、470g低密度聚乙烯以及60g紫外线吸收剂。其中，所述三元共聚丙烯采用5C37F树脂，所述抗静电剂采用SAS93树脂；所述低密度聚乙烯采用4203树脂，所述茂金属低密度聚乙烯采用2045G树脂，所述染色剂采用JEY-3016树脂，所述紫外线吸收剂采用UV-327树脂。
染色PE层、抗静电PE层和抗紫外线PE层的配料分别在三台主挤出机加热成熔融状态，抗静电PP层分别在两台辅助挤出机中加热成熔融状态，上述熔体分别经过过滤，在五层模头中汇合挤出厚片，挤出温度为165～215℃，挤出频率为20～45HZ。将冷却后的厚片预热后，在120～136℃下纵向拉伸4倍得到薄片；将纵向拉伸后的薄片预热后，在160～170℃下横向拉伸5倍得到薄膜。经拉伸后的薄膜冷却后进行表面电晕处理，将电晕处理后的薄膜经牵引收成母卷，牵引速度为62M/min，最后分切成薄膜成品。
以上所揭露的仅为本发明较佳实施例而已，当然不能以此来限定本发明之权利范围，因此依本发明权利要求所作的等同变化，仍属本发明所涵盖的范围。

Claims (5)

1.一种防静电膜，其特征在于：包括从上至下设置的抗静电PP层、染色PE层、抗静电PE层、抗紫外线PE层以及抗静电PP层。
2.根据权利要求1所述的一种防静电膜，其特征在于：所述抗静电PP层的材料为三元共聚丙烯，所述染色PE层、抗静电PE层和抗紫外线PE层的材料为线性低密度聚乙烯薄膜。
3.根据权利要求1所述的一种防静电膜，其特征在于：所述抗静电PP层厚度为20～80微米，所述染色PE层厚度为20～50微米，所述抗静电PE层厚度为20～80微米，所述染色PE层厚度为20～50微米。
4.一种如权利要求1所述的防静电膜的制备工艺，其步骤如下：a.配料，b.熔融挤出，c.拉伸，d.冷却电晕，e.收卷分切；
a.配料:所述抗静电PP层的组分包括95～99%wt三元共聚丙烯和1～5%wt抗静电剂；所述染色PE层的组分46.5～48.5%wt茂金属低密度聚乙烯、46.5～48.5%wt低密度聚乙烯以及3～7%wt染色剂；所述抗静电PE层的组分46.5～48.5%wt茂金属低密度聚乙烯、46.5～48.5%wt低密度聚乙烯以及3～7%wt抗静电剂；所述抗紫外线PE层的组分46.5～48.5%wt茂金属低密度聚乙烯、46.5～48.5%wt低密度聚乙烯以及3～7%wt紫外线吸收剂；
b.熔融挤出：染色PE层、抗静电PE层和抗紫外线PE层的配料分别在三台主挤出机加热成熔融状态，抗静电PP层分别在两台辅助挤出机中加热成熔融状态，上述熔体分别经过过滤，在五层模头中汇合挤出厚片，挤出温度为165～215℃，挤出频率为20～45HZ；
c.拉伸：将冷却后的厚片预热后，在120～136℃下纵向拉伸4～5倍得到薄片；将纵向拉伸后的薄片预热后，在160～170℃下横向拉伸5～6倍得到薄膜；
d.冷却电晕：经拉伸后的薄膜冷却后进行表面电晕处理；
e.收卷分切：将电晕处理后的薄膜经牵引收成母卷，牵引速度为60～65M/min，最后分切成薄膜成品。
5.根据权利要求4所述的一种防静电膜的制备工艺，其特征在于：所述三元共聚丙烯采用5C37F树脂，所述抗静电剂采用SAS93树脂；所述低密度聚乙烯采用4203树脂，所述茂金属低密度聚乙烯采用2045G树脂，所述染色剂采用JEY-3016树脂，所述紫外线吸收剂采用UV-327树脂。
CN201610017169.7A 2016-01-12 2016-01-12 一种防静电膜及其制备工艺 Pending CN105500869A (zh)

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