CN101633259B - Non-adhesive hot-laminating polyethylene film and preparation method thereof - Google Patents

Non-adhesive hot-laminating polyethylene film and preparation method thereof Download PDF

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CN101633259B
CN101633259B CN2008101342072A CN200810134207A CN101633259B CN 101633259 B CN101633259 B CN 101633259B CN 2008101342072 A CN2008101342072 A CN 2008101342072A CN 200810134207 A CN200810134207 A CN 200810134207A CN 101633259 B CN101633259 B CN 101633259B
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polyethylene
layer
masterbatch
ethylene
containing
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CN2008101342072A
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CN101633259A (en
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吕水抽
林小松
林陈震
齐庆德
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泉州利昌塑胶有限公司
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    • 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
    • B29C48/03Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07Flat, e.g. panels
    • B29C48/08Flat, e.g. panels flexible, e.g. films
    • 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
    • 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
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92504Controlled parameter
    • B29C2948/92704Temperature
    • 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
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92819Location or phase of control
    • B29C2948/92857Extrusion unit
    • B29C2948/92876Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/92895Barrel or housing
    • 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
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92819Location or phase of control
    • B29C2948/92857Extrusion unit
    • B29C2948/92904Die; Nozzle zone
    • 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
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92819Location or phase of control
    • B29C2948/92923Calibration, after-treatment or cooling zone

Abstract

The invention provides a non-adhesive hot-laminating polyethylene film. The film comprises a heat-sensitive function layer, a substrate layer and an anti-sticking layer which are orderly arranged and are formed by co-extrusion lamination. The film is characterized in that the substrate layer comprises 10 to 50 percent of polyethylene and 50 to 90 percent of polypropylene (calculated as the weightratio). A method for preparing the non-adhesive hot-laminating polyethylene film comprises the process steps of: adding raw materials of the substrate layer into an extruding machine; adding raw materials of the function layer into an auxiliary extruding machine; adding raw materials of the anti-sticking layer into another auxiliary extruding machine; extruding the raw materials after melting plastification, merging to form a multi-layer co-extruded thick sheet through a T type die head, and performing cooling molding through a cooling roller and a water tank; and performing biaxial tension and single-sided or double-sided corona treatment, and curling at a winding machine into a multi-layer co-extruded polyethylene film.

Description

无胶热复合聚乙烯薄膜及其制备方法技术领域:[0001] 本发明涉及一种无胶热复合聚乙烯薄膜及其制备方法。 No thermal plastic polyethylene film and composite TECHNICAL FIELD: [0001] The present invention relates to a thermal adhesive polyethylene film composite and a preparation method no. 背景技术:[0002] 无胶薄膜现在越来越成为市场主流,现在市售的通用三层或五层共挤出无胶薄膜基本为双向拉伸聚丙烯薄膜,其结构为:表层/基材层/功能层,或者表层/次表层/基材层/次表层/功能层。 BACKGROUND: [0002] No plastic films are now becoming more and more mainstream, is now commercially available general-purpose three or five coextruded film substantially without glue biaxially oriented polypropylene film, having the structure: skin / substrate layer / functional layer, or the surface / subsurface / base layer / subsurface / functional layer. 其中功能层材料主要为聚丙烯或聚乙烯,而基材层材料主要为聚丙烯。 Wherein the functional layer material is primarily polyethylene or polypropylene, and the substrate layer material is mainly polypropylene. 当功能层材料主要为聚乙烯时,由于其与基材层材料聚丙烯的加工性能不同,两者在共挤出后的双向拉伸加工过程中会出现加工工艺困难,特别是当功能层和基材层相对于防粘层均较厚的情况下,由于两材料之间加工温度差距大,容易出现粘辊现象,因此需要提供新的基材层材料配方使得基材层在加工过程中与功能层和防粘层都有很好的相容性,以解决前述加工问题。 When the functional layer material is primarily polyethylene, and processing due to their different material properties of the substrate layer of polypropylene, both the processing difficulties would be biaxially oriented after coextrusion process, especially when the functional layer and the base layer with respect to the case where the release layer were thicker, processing temperatures due to the large gap between the two materials, prone to roll coating, therefore, desirable to provide a new layer of material such that the base formulation and the substrate layer during processing the functional layer and the release layer has good compatibility, in order to solve the aforementioned processing problems. 发明内容:[0003] 本发明旨在解决上述技术问题,提供一种以聚乙烯作为基材层主要材料,并且具有全新功能层组成的无胶热复合聚乙烯薄膜。 SUMMARY OF THE INVENTION: [0003] The present invention is intended to solve the above problems, to provide a base layer of polyethylene as a main material, and having a non-thermal adhesive polyethylene film composite layers of new features. [0004] 本发明另一目的是提供一种无胶热复合聚乙烯薄膜的制备方法。 [0004] Another object of the present invention to provide a composite thermal plastic polyethylene film without preparation. [0005] 本发明的上述目的是通过如下的技术手段来实现的。 [0005] The object of the present invention is achieved by the following technical means to achieve. [0006] 本发明提供一种无胶热复合聚乙烯薄膜,其包括顺次设置并共挤出复合而成的热敏功能层、基材层、防粘层,所述基材层以重量比计含有10-50%的聚乙烯,50-90%的聚丙火布。 [0006] The present invention provides a thermally non-gel composite polyethylene film, which are sequentially arranged and comprising a heat-sensitive layer of the composite function obtained by coextrusion of the base layer, a release layer, said base layer in a weight ratio of a polyethylene containing, 10-50%, 50-90% polypropylene cloth fire. [0007] 所述基材层以重量比计还含有0-5%抗静电复合母料,0-20%氢化石油树脂复合母料,0-35%珠光复合母料,0-3%爽滑剂母料,0-10% 二氧化钛母料,所述抗静电母料为含20-55%聚乙烯/聚丙烯载体的复合型胺类或酯类抗静电母料,所述珠光母料是含20-55% 聚乙烯/聚丙烯载体的碳酸钙和/或聚对苯二甲酸丁二醇酯珠光复合母料,所述氢化石油树脂复合母料含20-55%聚乙烯/聚丙烯载体,所述爽滑母料为含有70-95%聚乙烯/聚丙烯载体的油酸酰胺或芥酸酰胺。 [0007] The substrate layer further contains 0-5% by weight of the antistatic masterbatch composite ratio, 0-20% hydrogenated petroleum resin composite masterbatch, the masterbatch composite pearlescent 0-35%, 0-3% slip masterbatch, 0-10% titanium dioxide master batch, the antistatic masterbatch containing 20-55% polyethylene / polypropylene composite vector-based or amine-based antistatic masterbatch, the masterbatch containing the pearlescent calcium carbonate 20-55% polyethylene / polypropylene carrier and / or polyethylene terephthalate pearlescent composite masterbatch, the masterbatch hydrogenated petroleum resin composite containing 20-55% polyethylene / polypropylene carrier, the slip masterbatch oleic acid amide or erucic acid amide containing 70 to 95% polyethylene / polypropylene carrier. 所述二氧化钛母料含有20-60%聚乙烯/聚丙烯载体。 The titanium dioxide masterbatch comprising 20-60% polyethylene / polypropylene carrier. [0008] 所述功能层材料选自乙烯-烯属不饱和羧酸共聚物、乙烯-烯属不饱和酯共聚物、 乙烯-马来酸酐共聚物、乙烯-α烯烃共聚物、离子聚合物,且所述乙烯基共聚物中与乙烯共聚的单体的含量以重量计为0.5-30%,所述α烯烃含有4-8碳原子。 [0008] The functional layer material is selected from ethylene - ethylenically unsaturated carboxylic acid copolymer, an ethylene - unsaturated ester copolymers, ethylene - maleic anhydride copolymer, an ethylene -α-olefin copolymer, ionomer, and the ethylene content of the copolymer with the vinyl monomer copolymerizable 0.5 to 30% by weight, said α-olefin containing 4-8 carbon atoms. [0009] 所述热敏功能层与所述基材层以及所述基材层与所述防粘层之间进一步设有夹层结构,所述的夹层材料选自聚丙烯或聚乙烯或其共混物。 [0009] the thermosensitive layer and the functional interlayer material and the substrate layer is further provided between the sandwich base material layer and the release layer is selected from the polyethylene or polypropylene or co mix. [0010] 一种无胶热复合聚乙烯薄膜制备方法,其包括如下工艺步骤:[0011] a.将热敏功能层材料混合投入一台辅助挤出机中,其中挤出机的工作温度为150-270°C,熔融塑化挤出;[0012] b.将基材层材料投入一台主挤出机中,其中挤出机工作温度为180-270°C,熔融塑化挤出;[0013] c.将防粘层材料投入另外一台辅助挤出机,其中挤出机工作温度为180-270°C之间,熔融塑化挤出;[0014] d.前述各层材料经熔融塑化后挤出,汇流经T型模头形成多层共挤出厚片,模头的工作温度为210-280°C,将所得厚片经冷却辊和水槽冷却成型,冷却辊和水槽的工作温度为10-35 0C ;[0015] e.将共挤出的厚片进行双向拉伸,其中纵向拉伸3-7倍,横向拉伸4-12倍,所述纵向或横向拉伸为逐级拉伸;[0016] 其中进一步包括位于步骤d前的步骤C'将夹层材料分别投入两台辅助挤出机中, 熔融塑化后与其他 [0010] A thermal plastic polyethylene film preparation method no composite, the process comprising the steps of:. [0011] a heat sensitive functional layer material mixed into an auxiliary extruder, wherein the working temperature of extrusion machines. 150-270 ° C, melt plastics extrusion;. [0012] b the base layer material into a main extruder, wherein the extruder operating temperature of 180-270 ° C, melt plastics extrusion; . [0013] c the release layer material into another auxiliary extruder, wherein the extruder operating temperature is between 180-270 ° C, melt plastics extrusion;. [0014] d through the layers of material after plasticized melt extrusion, T-die formed by the bus multilayer coextruded slab, the operating temperature of the die was 210-280 ° C, and the resulting slab is cooled by a cooling roll and a forming tank, water tank and the cooling roll the operating temperature of 10-35 0C; [0015] e coextruded biaxially stretched slab, wherein the longitudinal stretching 3-7 times, 4-12 times transverse direction, the longitudinal or transverse stretching. is stretched stepwise; [0016] wherein C further comprises a step located in front of the step d ', respectively, the interlayer material into two secondary extruder, the plasticized with other melted 材料汇流经T型模头共挤出。 Materials bus via a T-die coextrusion. [0017] 基于本发明所提供的无胶热复合聚乙烯薄膜,在加工过程中明显降低了拉伸温度,使得粘辊现象几乎不发生,进而降低了能耗和生产成本。 [0017] No heat adhesive composite film of the present invention provides a polyethylene based, in the process significantly reduces the stretching temperature, so that the phenomenon of roll hardly occurs, thereby reducing energy consumption and production cost. 而且产品的各项性能与传统无胶热复合双向拉伸聚丙烯薄膜相同。 And the performance with traditional products without heat adhesive composite biaxially oriented polypropylene film of the same. 具体实施方式:[0018] 下面结合具体的实施例来详细说明本发明所提供的双向拉伸聚乙烯薄膜及其制备方法,所述的实施例是为了更好地解释本发明,而不是对本发明权利要求保护范围的限制,所有基于本发明基本思想的修改和变动,都属于本发明请求保护的范围。 DETAILED DESCRIPTION: [0018] connection with the following specific examples biaxially stretched polyethylene film of the present invention and its preparation method provided by the detailed description of the embodiments in order to best explain the present invention, the present invention is not limit the scope of protection as claimed in claim all modifications and variations to the basic idea of ​​the present invention fall within the scope of the claimed invention. [0019] 实施例1[0020] 功能层材料以重量比计含85%的聚乙烯(MFR:3. lg/10min),2%的抗静电母料(含60%抗静电剂),10%的碳酸钙母料(含60%碳酸钙)和3%的增塑剂,混合均勻后,送入挤出机中,挤出机工作温度为200-235°C ;[0021] 基材层材料以重量比计含有40%的聚乙烯HP 425 J(MFR :3. lg/lOmin),40%聚丙烯(规格),3%抗静电复合母料(含60%抗静电剂),2%氢化石油树脂复合母料(含60%氢化石油树脂),14%珠光复合母料(含60%碳酸钙),爽滑剂,材料混合均勻后送入一台挤出机中,挤出机工作温度为180-200°C ;[0022] 90%聚丙烯,10%抗粘连母料ABPP05混合均勻后送入另外一台辅助挤出机中,挤出机工作温度为200-250°C ;[0023] 三台挤出机内的原料经过熔融塑化后,进入同一T型模头,形成功能层/聚乙烯基材层/防粘层三层共挤出结构的熔体,模头的设定工作温度为240°C ;[0024] 从 [0019] Example 1 [0020] The functional layer material in a weight ratio basis of polyethylene containing 85% (MFR:. 3 lg / 10min), 2% antistatic masterbatch (containing 60% antistatic agent), 10% calcium carbonate masterbatch (containing 60% calcium carbonate), and 3% of a plasticizer, uniformly mixed, fed to the extruder, the extruder operating temperature of 200-235 ° C; [0021] substrate layer material weight ratio of polyethylene containing 40% HP 425 J (MFR:. 3 lg / lOmin), 40% polypropylene (specifications), 3% anti-static compound masterbatch (containing 60% antistatic agent), 2% hydrogenated petroleum resin composite masterbatch (containing 60% hydrogenated petroleum resin), 14% pearlescent composite masterbatch (containing 60% calcium carbonate), slip agents, the mixed material is uniformly fed to an extruder, the extruder operating temperature of 180-200 ° C; [0022] 90% polypropylene, 10% of the antiblock masterbatch ABPP05 mixed into another auxiliary extruder, an extruder operating temperature of 200-250 ° C; [0023 ] in three extruders feed after melted plasticized, into the same T-die to form a functional layer / a polyethylene base material layer / release layer structure of a three-layer melt co-extrusion, the die set working temperature of 240 ° C; [0024] from 头挤出的熔体,经过冷却辊和水槽的冷却后,形成三层共挤出结构的厚片,冷却辊和水槽的工作温度分别为33°C和30°C ;[0025] 冷却后的厚片,进入纵向拉伸装置,进行预热,两步拉伸和热定型,纵向拉伸装置各辊的工作温度为70-142°C,纵向拉伸比为5.0(4. 4*1. 14)倍;[0026] 经过纵向拉伸后的膜片,进入横向拉伸装置,经过预热、拉伸、热处理后,冷却定型,逐级横向拉伸装置各辊的工作温度设定为K5_173°C,逐级横向拉伸,使得拉伸的薄膜更均勻,表面更平整,横向拉伸比为9. O倍;[0027] 横向拉伸后的薄膜进入牵引站,经过冷却、切边、测厚、双面电晕处理,然后进入收卷站收卷成膜卷。 Melt extruded, cooled through cooling rollers and tank, forming a three-layer coextruded slab structure, a cooling roll and sink operating temperature are 33 ° C and 30 ° C; the [0025] cooled slab, into the longitudinal stretching apparatus for preheating, stretching and heat-setting two-stage longitudinal stretching device rollers operating temperature of 70-142 ° C, longitudinal stretching ratio was 5.0 (4.4 * 1. 14) times; [0026] after the longitudinal stretching through the diaphragm, into the transverse stretching apparatus after preheating, stretching, heat treatment, cooling and sizing means stepwise operating temperature of each roller transverse stretching is set to K5_173 ° C, transverse stretching step by step, so that the stretched film a more uniform, smoother surface, transverse stretching ratio was 9. O times; the film [0027] the transverse stretching into the traction station, after cooling, trimming, thickness, double-sided corona treatment, and then rolling into the winding station forming roll. [0028] 实施例2[0029] 功能层材料以重量比计含80%的乙烯-马来酸酐共聚物(MFR :3. lg/10min),3% 的抗静电母料(含60%抗静电剂),10%的碳酸钙母料(含60%碳酸钙)和5%的增塑剂, 混合均勻后,送入挤出机中,挤出机工作温度为200-235°C ;[0030] 基材层材料以重量比计含有30%的聚乙烯HP 425 J(MFR :3. lg/lOmin),50%聚丙烯(规格),3%抗静电复合母料(含60%抗静电剂),2%氢化石油树脂复合母料(含60%氢化石油树脂),14%珠光复合母料(含60%碳酸钙),爽滑剂,材料混合均勻后送入一台主挤出机中,挤出机工作温度为180-200°C ;[0031] 90%聚丙烯,10%抗粘连母料ABPP05混合均勻后送入另外一台挤出机中,挤出机工作温度为200-250°C ;[0032] 三台挤出机内的原料经过熔融塑化后,进入同一T型模头,形成功能层/聚乙烯基材层/防粘层三层共挤出结构的熔体,模头的设定工作温度为240 [0028] Example 2 [0029] Ethylene functional layer material containing a weight ratio of 80% - maleic anhydride copolymer (MFR:. 3 lg / 10min), 3% antistatic masterbatch (containing 60% Antistatic agent), 10% calcium carbonate masterbatch (containing 60% calcium carbonate) and 5% plasticizer uniformly mixed, fed to the extruder, the extruder operating temperature of 200-235 ° C; [0030 ] base layer material in a weight ratio of polyethylene containing 30% HP 425 J (MFR:. 3 lg / lOmin), 50% polypropylene (specifications), 3% anti-static compound masterbatch (containing 60% antistatic agent ), 2% of hydrogenated petroleum resin composite masterbatch (containing 60% hydrogenated petroleum resin), 14% pearlescent composite masterbatch (containing 60% calcium carbonate), slip agents, the mixed material is uniformly fed to a main extruder extruder operating temperature of 180-200 ° C; [0031] 90% polypropylene, 10% of the antiblock masterbatch ABPP05 mixed into another extruder, the extruder operating temperature of 200-250 ° C; [0032] material in the three extruders after plasticized melt, into the same T-die, to form a melt layer structure of the functional / polyethylene base material layer / three-layer co-extruded release layer, set temperature of the die was 240 °C ;[0033] 从模头挤出的熔体,经过冷却辊和水槽的冷却后,形成三层共挤出结构的厚片,冷却辊和水槽的工作温度分别为33°C和30°C ;[0034] 冷却后的厚片,进入纵向拉伸装置,进行预热,两步拉伸和热定型,纵向拉伸装置各辊的工作温度为70-142°C,纵向拉伸比为5.0(4. 4*1. 14)倍;[0035] 经过纵向拉伸后的膜片,进入横向拉伸装置,经过预热、拉伸、热处理后,冷却定型,逐级横向拉伸装置各辊的工作温度设定为K5_173°C,逐级横向拉伸,使得拉伸的薄膜更均勻,表面更平整,横向拉伸比为9. O倍;[0036] 横向拉伸后的薄膜进入牵引站,经过冷却、切边、测厚、双面电晕处理,然后进入收卷站收卷成膜卷。 ° C; [0033] The melt extruded from the die, a cooling roll and after cooling tank, forming a three-layer coextruded slab structure, a cooling roll and sink operating temperature are 33 ° C and 30 ° C; [0034] after cooling the slab into longitudinal stretching apparatus for preheating, stretching and heat-setting two-stage longitudinal stretching device rollers operating temperature of 70-142 ° C, longitudinal stretching ratio 5.0 (. 44 * 114) times; [0035] after the longitudinal stretching through the diaphragm, into the transverse stretching apparatus after preheating, stretching, heat treatment, cooling and sizing each stepwise transverse stretch apparatus roller operating temperature was K5_173 ° C, transverse stretching step by step, so that the stretched film a more uniform, smoother surface, transverse stretching ratio was 9. O times; the film [0036] the transverse stretching into the traction station, after cooling, trimming, thickness, double-sided corona treatment, and then rolling into the winding station forming roll. [0037] 实施例3[0038] 功能层材料以重量比计含100%的乙烯-烯属不饱和酯共聚物(MFR :3. lg/10min) 送入挤出机中,挤出机工作温度为200-235°C ;[0039] 基材层材料以重量比计含有10%的聚乙烯HP 425 J(MFR :3. lg/lOmin),90%聚丙烯(规格)材料混合均勻后分送入三台挤出机中,挤出机工作温度为180-200°C ;[0040] 将80%聚丙烯,3%抗静电复合母料(含60%抗静电剂),2%氢化石油树脂复合母料(含60%氢化石油树脂),14%珠光复合母料(含60%碳酸钙),1%爽滑剂母料(含2%芥酸酰胺),[0041] 90%聚丙烯,10%抗粘连母料ABPP05混合均勻后送入另外一台辅助挤出机中,挤出机工作温度为200-250°C ;[0042] 挤出机内的原料经过熔融塑化后,进入同一T型模头,形成共挤出结构的熔体,模头的设定工作温度为240°C ;[0043] 从模头挤出的熔体,经过冷却辊和水槽的冷却后,形成五层共挤出结构的厚 Fed to the extruder, the extruder temperature: ethylenically unsaturated ester copolymer (. 3 lg / 10min MFR) - [0037] Example 3 [0038] The functional layer material in a weight ratio of ethylene containing 100% basis embodiments of 200-235 ° C; [0039] the base layer material in a weight ratio of polyethylene containing 10% HP 425 J: after (. MFR 3 lg / lOmin), 90% polypropylene (specification) dispensing material mixed in the three extruders, an extruder operating temperature of 180-200 ° C; [0040] 80% of polypropylene, 3% antistatic compound masterbatch (containing 60% antistatic agent), 2% of hydrogenated petroleum resin composite masterbatch (containing 60% hydrogenated petroleum resin), 14% pearlescent composite masterbatch (containing 60% calcium carbonate), 1% slip agent masterbatch (containing 2% erucic acid amide), [0041] 90% of polypropylene, 10% antiblock masterbatch ABPP05 uniformly mixed into a further secondary extruder, an extruder operating temperature of 200-250 ° C; in the starting material [0042] after the molten plasticizing extruder, into the same T-die to form a coextruded structure of a melt, the die set temperature of 240 ° C; [0043] the melt extruded from the die, a cooling roll and after cooling tank, forming a five-layer thick coextruded structure 片,冷却辊和水槽的工作温度分别为33°C和30°C ;[0044] 冷却后的厚片,进入纵向拉伸装置,进行预热,两步拉伸和热定型,纵向拉伸装置各辊的工作温度为70-142°C,纵向拉伸比为5.0(4. 4*1. 14)倍;[0045] 经过纵向拉伸后的膜片,进入横向拉伸装置,经过预热、拉伸、热处理后,冷却定型,逐级横向拉伸装置各辊的工作温度设定为K5_173°C,逐级横向拉伸,使得拉伸的薄膜更均勻,表面更平整,横向拉伸比为9. 0倍;[0046] 横向拉伸后的薄膜进入牵引站,经过冷却、切边、测厚、双面电晕处理,然后进入收卷站收卷成膜卷。 Sheet, and the water tank cooling roller operating temperature are 33 ° C and 30 ° C; the [0044] cooling the slab, into the longitudinal stretching apparatus for preheating, stretching and heat-setting two-stage longitudinal stretching means the operating temperature of each roller is 70-142 ° C, longitudinal stretching ratio was 5.0 (44 * 114.) times; [0045] after the longitudinal stretching through the diaphragm, into the transverse stretch apparatus, preheated stretching, heat treatment, cooling and sizing rollers gradual transverse stretch apparatus operating temperature was K5_173 ° C, transverse stretching step by step, so that the stretched film a more uniform, smoother surface, transverse stretching ratio is 9.0 times; the film [0046] the transverse stretching into the traction station, after cooling, trimming, thickness, double-sided corona treatment, and then rolling into the winding station forming roll.

Claims (5)

1. 一种无胶热复合聚乙烯薄膜,其包括顺次设置并共挤出复合而成的热敏功能层、基材层和防粘层,其特征在于:所述热敏功能层材料选自乙烯-烯属不饱和羧酸共聚物、乙烯-烯属不饱和酯共聚物、乙烯-马来酸酐共聚物、乙烯-α烯烃共聚物、离子聚合物,且所述乙烯基共聚物中与乙烯共聚的单体的含量以重量计为0. 5-30%,所述α烯烃含有4-8个碳原子;所述基材层以重量比计含有10-50%的聚乙烯,50-90%的聚丙烯。 1. A non-plastic composite heat polyethylene film comprising sequentially disposed, and the heat-sensitive layer of the composite function obtained by coextrusion of the base layer and the release layer, wherein: the heat-sensitive functional layer material is selected from since ethylene - ethylenically unsaturated carboxylic acid copolymer, an ethylene - unsaturated ester copolymers, ethylene - maleic anhydride copolymer, an ethylene -α-olefin copolymer, ionomer, and a copolymer of vinyl ethylene copolymerized monomer content to 0. 5 to 30% by weight, said α-olefin containing 4-8 carbon atoms; the base layer in a weight ratio of 10 to 50% of a polyethylene containing 50 90% of polypropylene.
2.如权利要求1所述的无胶热复合聚乙烯薄膜,其特征在于:所述基材层以重量比计还含有0-5%抗静电复合母料,0-20%氢化石油树脂复合母料,0-35%珠光复合母料, 0-3%爽滑剂母料,0-10%二氧化钛母料,所述抗静电复合母料为含20-55%聚乙烯/聚丙烯载体的复合型胺类或酯类抗静电母料,所述珠光复合母料是含20-55%聚乙烯/聚丙烯载体的碳酸钙和/或聚对苯二甲酸丁二醇酯珠光复合母料,所述氢化石油树脂复合母料含20-55%聚乙烯/聚丙烯载体,所述爽滑剂母料为含有70-95%聚乙烯/聚丙烯载体的油酸酰胺或芥酸酰胺,所述二氧化钛母料含有20-60%聚乙烯/聚丙烯载体。 2. No glue polyethylene film thermal compound according to claim 1, wherein: said base layer further comprises a weight ratio of 0-5% antistatic masterbatch compound, 0-20% hydrogenated petroleum resin composite masterbatch, the masterbatch composite pearlescent 0-35%, 0-3% slip agent masterbatch, 0-10% titanium dioxide master batch, the antistatic masterbatch composite containing 20-55% polyethylene / polypropylene carrier amine-based compound or antistatic masterbatch, the pearlescent composite masterbatch containing 20-55% polyethylene / polypropylene carrier of calcium carbonate and / or polyethylene terephthalate pearlescent composite masterbatch, the hydrogenated petroleum resin composite masterbatch containing 20-55% polyethylene / polypropylene carrier, said slip masterbatch containing oleamide or erucamide 70-95% polyethylene / polypropylene carrier, the titanium dioxide master batch containing 20 to 60% polyethylene / polypropylene carrier.
3.如权利要求1或2所述的无胶热复合聚乙烯薄膜,其特征在于:所述热敏功能层与所述基材层以及所述基材层与所述防粘层之间进一步设有夹层结构,所述的夹层材料选自聚丙烯或聚乙烯或其共混物。 3. No plastic polyethylene film or thermal compound according to claim 1, wherein: said function between the thermosensitive layer and the base layer and the substrate layer and the release layer further the sandwich structure is provided, said interlayer material selected from polypropylene or polyethylene or blends thereof.
4. 一种无胶热复合聚乙烯薄膜制备方法,其包括如下工艺步骤:a.将热敏功能层材料混合投入一台辅助挤出机中,其中挤出机的工作温度为150-270°C,熔融塑化挤出;所述热敏功能层材料选自乙烯-烯属不饱和羧酸共聚物、乙烯-烯属不饱和酯共聚物、乙烯-马来酸酐共聚物、乙烯-α烯烃共聚物、离子聚合物,且所述乙烯基共聚物中与乙烯共聚的单体的含量以重量计为0. 5-30%,所述α烯烃含有4-8个碳原子;b.将基材层材料投入一台主挤出机中,其中挤出机工作温度为180-270°C,熔融塑化挤出,所述基材层以重量比计含有10-50%的聚乙烯,50-90%的聚丙烯;c.将防粘层材料投入另外一台辅助挤出机,其中挤出机工作温度为180-270°C之间, 熔融塑化挤出;d.前述各层材料经熔融塑化后挤出,汇流经T型模头形成多层共挤出厚片,模头的工作温度为210-280°C,将所得厚片经 A non-thermal adhesive polyethylene composite film preparation method, the process comprising the steps of:. A mixing heat-sensitive functional layer material into a secondary extruder, wherein the extruder operating temperature of 150-270 ° C, melt plastics extrusion; the heat-sensitive functional layer material is selected from ethylene - ethylenically unsaturated carboxylic acid copolymer, an ethylene - unsaturated ester copolymers, ethylene-ethylenic - maleic anhydride copolymer, an ethylene -α-olefin copolymers, ionomer content, and the vinyl copolymer of ethylene with a monomer copolymerizable 0. 5-30 weight%, the α-olefin containing 4-8 carbon atoms; the B group. sheet layer material into a main extruder, wherein the extruder operating temperature of 180-270 ° C, melt plastics extrusion, the substrate layer at a weight ratio of polyethylene contains 10 to 50%, 50 90% polypropylene;. the release layer material C into another auxiliary extruder, wherein the extruder operating temperature is between 180-270 ° C, melt plastics extrusion; D the layers of material. after plasticized by melt extrusion, T-die formed by the bus multilayer coextruded slab, the operating temperature of the die was 210-280 ° C, the resulting slab was 却辊和水槽冷却成型,冷却辊和水槽的工作温度为10-35 0C ;e.将共挤出的厚片进行双向拉伸,其中纵向拉伸3-7倍,横向拉伸4-12倍,所述纵向或横向拉伸为逐级拉伸。 Cooling and shaping rolls but sink, a cooling roll and sink operating temperature 10-35 0C;. E coextruded biaxially stretched slab, wherein the longitudinal stretching 3-7 times, 4-12 times transverse direction said longitudinal or transverse stretching is stretched stepwise.
5.如权利要求4所述的一种无胶热复合聚乙烯薄膜制备方法,其中进一步包括位于步骤d前的步骤C'将夹层材料分别投入两台辅助挤出机中,熔融塑化后与其他层材料汇流经T型模头共挤出。 5. The non-gel preparation method of polyethylene film thermal compound according to claim 4, wherein the step C further comprises a step located in front of d ', respectively, the interlayer material into two secondary extruder, melted and plasticized other layers of the bus through a T-die coextrusion.
CN2008101342072A 2008-07-21 2008-07-21 Non-adhesive hot-laminating polyethylene film and preparation method thereof CN101633259B (en)

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Publication number Priority date Publication date Assignee Title
CN101058247A (en) 2006-12-08 2007-10-24 广东德冠包装材料有限公司 Paper plastic glue-free composite bidirectional stretching polypropylene film and its preparation method
CN101080322A (en) 2004-12-16 2007-11-28 埃克森美孚化学专利公司 Multi-layer films with improved properties

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Publication number Priority date Publication date Assignee Title
CN101080322A (en) 2004-12-16 2007-11-28 埃克森美孚化学专利公司 Multi-layer films with improved properties
CN101058247A (en) 2006-12-08 2007-10-24 广东德冠包装材料有限公司 Paper plastic glue-free composite bidirectional stretching polypropylene film and its preparation method

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