CN113829712A - 高挺度包装薄膜及其生产方法 - Google Patents

高挺度包装薄膜及其生产方法 Download PDF

Info

Publication number
CN113829712A
CN113829712A CN202111132781.6A CN202111132781A CN113829712A CN 113829712 A CN113829712 A CN 113829712A CN 202111132781 A CN202111132781 A CN 202111132781A CN 113829712 A CN113829712 A CN 113829712A
Authority
CN
China
Prior art keywords
surface layer
agent
polypropylene
percent
antioxidant
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202111132781.6A
Other languages
English (en)
Other versions
CN113829712B (zh
Inventor
邵峥
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ningbo Ruicheng Packing Material Co ltd
Original Assignee
Ningbo Ruicheng Packing Material Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ningbo Ruicheng Packing Material Co ltd filed Critical Ningbo Ruicheng Packing Material Co ltd
Priority to CN202111132781.6A priority Critical patent/CN113829712B/zh
Publication of CN113829712A publication Critical patent/CN113829712A/zh
Application granted granted Critical
Publication of CN113829712B publication Critical patent/CN113829712B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • B32B27/32—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
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • 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
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin 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
    • 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
    • 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
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS 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
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/40—Applications of laminates for particular packaging purposes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • C08L23/14—Copolymers of propene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2007/00—Flat articles, e.g. films or sheets
    • 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
    • B32B2250/00—Layers arrangement
    • B32B2250/24—All layers being polymeric
    • B32B2250/242—All polymers belonging to those covered by group B32B27/32
    • 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
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
    • 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
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/546—Flexural strength; Flexion stiffness
    • 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
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/552—Fatigue strength
    • 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
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558—Impact strength, toughness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS 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
    • B65D2565/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D2565/38—Packaging materials of special type or form
    • B65D2565/381—Details of packaging materials of special type or form
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2207/00—Properties characterising the ingredient of the composition
    • C08L2207/06—Properties of polyethylene
    • C08L2207/062—HDPE
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Laminated Bodies (AREA)
  • Wrappers (AREA)

Abstract

本发明公开了一种高挺度包装薄膜，它由外表层、次外表层、中间芯层和次内表层和内表层组成；外表层由共聚聚丙烯、抗氧剂、HDPE、叔丁基过氧基异丙苯、硬脂酸镁、硅灰石、防粘连爽滑母料组成；次外表层由共聚聚丙烯、钛酸酯偶联剂、LLDPE、聚烯烃热塑性弹性体、光稳定剂、滑石粉组成；中间芯层由均聚聚丙烯、抗静电剂、增挺剂、抗氧剂、脱氧剂、稳定剂、紫外线吸收剂组成；次内表层由共聚聚丙烯、均聚聚丙烯、碳酸钙、钛酸酯偶联剂、HDPE、液体石蜡和增韧剂组成；内表层由共聚聚丙烯、防粘连爽滑母料、抗静电剂、氢氧化镁、稀土偶联剂、交联剂、丁苯橡胶、润滑剂、抗氧剂、纳米碳酸钙和β晶成核剂组成。该薄膜挺度高，还具有增韧、消光、防老化等性能。

Description

高挺度包装薄膜及其生产方法
技术领域
本发明涉及包装材料技术领域，具体讲是一种高挺度包装薄膜及其生产方法。
背景技术
纸巾是现代生活不可或缺的一种重要家庭使用消耗品，如餐巾纸，面巾纸，卫生纸等，这些产品以其使用方便、卫生美观而渐渐成为了人们不可缺少的日常生活用品，产品外包装也不断发展更新和进步，逐渐将档次比较低的聚乙烯薄膜替换成透明度更好的PP薄膜。包装薄膜通过增挺剂的添加来提高产品的挺度，并通过流延挤出的方式使产品变薄，但少有其它功能，有待进一步地改善。
发明内容
鉴于上述现有技术的缺陷，本发明的一个目的在于：提供一种高挺度包装薄膜。
为解决上述问题，本发明的技术解决方案是：高挺度包装薄膜，它由外表层、次外表层、中间芯层和次内表层和内表层组成，其中：
外表层由共聚聚丙烯、抗氧剂、HDPE、叔丁基过氧基异丙苯、硬脂酸镁、硅灰石、防粘连爽滑母料组成；
次外表层由共聚聚丙烯、钛酸酯偶联剂、LLDPE、聚烯烃热塑性弹性体、光稳定剂、滑石粉组成；
中间芯层由均聚聚丙烯、抗静电剂、增挺剂、抗氧剂、脱氧剂、稳定剂、紫外线吸收剂组成；
次内表层由共聚聚丙烯、均聚聚丙烯、碳酸钙、钛酸酯偶联剂、HDPE、液体石蜡和增韧剂组成；
内表层由共聚聚丙烯、防粘连爽滑母料、抗静电剂、氢氧化镁、稀土偶联剂、交联剂、丁苯橡胶、润滑剂、抗氧剂、纳米碳酸钙和β晶成核剂组成。
进一步地，外表层、次外表层、中间芯层和次内表层和内表层的组分按质量比为：外表层15％，次外表层10％，中间芯层50％，次内表层10％，内表层15％。
进一步地，外表层的组分按质量比为：共聚聚丙烯56.6％、抗氧剂0.1％、HDPE39％、叔丁基过氧基异丙苯0.2％、硬脂酸镁0.1％、硅灰石2％、防粘连爽滑母料2％。
进一步地，次外表层的组分按质量比为：共聚聚丙烯62％、钛酸酯偶联剂2％、LLDPE 20％、聚烯烃热塑性弹性体5％、光稳定剂1％、滑石粉10％。
进一步地，中间芯层的组分按质量比为：均聚聚丙烯96.5％、抗静电剂1％、增挺剂1.5％、抗氧剂0.5％、脱氧剂0.2％、稳定剂0.1％、紫外线吸收剂0.2％。
进一步地，次内表层的组分按质量比为：共聚聚丙烯32％、均聚聚丙烯16.5％、碳酸钙20％、钛酸酯偶联剂0.3％、HDPE 21％、液体石蜡0.2％、增韧剂10％。
进一步地，内表层的组分按质量比为：共聚聚丙烯50％、防粘连爽滑母料1.3％、抗静电剂1％、氢氧化镁15％、稀土偶联剂2％、交联剂3％、丁苯橡胶12％、润滑剂0.5％、抗氧剂0.2％、纳米碳酸钙14％、β晶成核剂1％组成。
本发明还提供一种上述高挺度包装薄膜的生产方法，包括以下步骤：
(1)外表层、次外表层、中间芯层和次内表层和内表层各组分比例分别称取原料，外表层、次外表层、中间芯层和次内表层和内表层，混配后的原料均进行干燥；
(2)干燥后的外表层、次外表层、中间芯层和次内表层和内表层原料分别送入各自挤出机进行熔融混炼塑化；
(3)分别将熔融态熔体送入模头，熔体在模头中汇合后通过扁平状的模头口形成熔融态片材；
(4)用气刀将片材贴附于激冷辊上骤冷形成未定型的片材，激冷辊温度为20-35℃，然后经过水浴冷却后将片材定型形成铸片；
(5)铸片经拉伸后形成薄膜；
(6)薄膜通过红外线检测厚度将对应厚度偏差反馈到模头，通过对应位置螺栓加热功率微动，对薄膜厚度偏差进行修正；
(7)电晕面进行高频高压火花处理，诱发其表面化学键断裂，改善薄膜的表面润湿性和极性；
(8)将电晕处理后的产品进行冷却并收卷；
(9)对薄膜进行表面张力检测、热收缩率检测、拉伸强度和断裂伸长率弹性模量检测、摩擦系数检测、热封强度检测。
进一步地，步骤(9)中，热收缩率检测具体为：
用100mm*5mm的取样条沿试样宽度方向均匀截取横向和纵向试样4组，在试样的端部标记横、纵向及序号；将试样放入烘箱中进行加热，加热时间为5-10min，加热温度为100-120℃，加热完后取出冷却5-10min，再对试样的长度进行测量。
本发明的有益效果是：
外表层通过共聚聚丙烯和HDPE共混改性，使薄膜不但具有较高的拉伸强度，和具有消光效果；
次外表层通过共聚聚丙烯和LLDPE共混改性，可以提高薄膜的韧性和耐环境应力开裂性，同时添加聚烯烃热塑性弹性体进行增韧，使薄膜的韧性大幅度提高，用滑石粉进行增刚，保证薄膜有足够的刚性；
中间芯层通过增挺剂的添加来提高产品的挺度，并通过抗氧剂、脱氧剂、稳定剂、紫外线吸收剂来提高抗老化性能；
次内表层通过共聚聚丙烯、均聚聚丙烯、HDPE和增韧剂共混改性，薄膜具有较高的塑性和韧性保持率；
内表层不但为薄膜提供阻燃效果，还通过共聚聚丙烯与丁苯橡胶共混改性，具有增韧效果，具有较高的拉伸强度、弯曲强度和缺口冲击强度。
具体实施方式
为比较直观、完整地理解本发明的技术方案，现进行非限制性的特征说明如下：
实施例一：高挺度包装薄膜，它由外表层、次外表层、中间芯层和次内表层和内表层组成，其中：
外表层由共聚聚丙烯、抗氧剂、HDPE、叔丁基过氧基异丙苯、硬脂酸镁、硅灰石、防粘连爽滑母料组成；
次外表层由共聚聚丙烯、钛酸酯偶联剂、LLDPE、聚烯烃热塑性弹性体、光稳定剂、滑石粉组成；
中间芯层由均聚聚丙烯、抗静电剂、增挺剂、抗氧剂、脱氧剂、稳定剂、紫外线吸收剂组成；
次内表层由共聚聚丙烯、均聚聚丙烯、碳酸钙、钛酸酯偶联剂、HDPE、液体石蜡和增韧剂组成；
内表层由共聚聚丙烯、防粘连爽滑母料、抗静电剂、氢氧化镁、稀土偶联剂、交联剂、丁苯橡胶、润滑剂、抗氧剂、纳米碳酸钙和β晶成核剂组成。
外表层、次外表层、中间芯层和次内表层和内表层的组分按质量比为：外表层15％，次外表层10％，中间芯层50％，次内表层10％，内表层15％。
外表层的组分按质量比为：共聚聚丙烯56.6％、抗氧剂0.1％、HDPE 39％、叔丁基过氧基异丙苯0.2％、硬脂酸镁0.1％、硅灰石2％、防粘连爽滑母料2％。抗氧剂为抗氧剂1076，防粘连爽滑母料为芥酸酰胺。
次外表层的组分按质量比为：共聚聚丙烯62％、钛酸酯偶联剂2％、LLDPE 20％、聚烯烃热塑性弹性体5％、光稳定剂1％、滑石粉10％。
中间芯层的组分按质量比为：均聚聚丙烯96.5％、抗静电剂1％、增挺剂1.5％、抗氧剂0.5％、脱氧剂0.2％、稳定剂0.1％、紫外线吸收剂0.2％。抗静电剂为聚丙烯PP薄膜生产中常规使用的PP抗静电剂，如可以为市售商品PP抗静电剂S-1120、舒尔曼公司生产的PP抗静电剂ASPA2485DC等，增挺剂为C5氢化石油树脂、C9氢化石油树脂中的一种，抗氧剂为抗氧剂1010。
次内表层的组分按质量比为：共聚聚丙烯32％、均聚聚丙烯16.5％、碳酸钙20％、钛酸酯偶联剂0.3％、HDPE 21％、液体石蜡0.2％、增韧剂10％。
内表层的组分按质量比为：共聚聚丙烯50％、防粘连爽滑母料1.3％、抗静电剂1％、氢氧化镁15％、稀土偶联剂2％、交联剂3％、丁苯橡胶12％、润滑剂0.5％、抗氧剂0.2％、纳米碳酸钙14％、β晶成核剂1％组成。
本发明还提供一种上述高挺度包装薄膜的生产方法，包括以下步骤：
(1)外表层、次外表层、中间芯层和次内表层和内表层各组分比例分别称取原料，外表层、次外表层、中间芯层和次内表层和内表层，混配后的原料均进行干燥；
(2)干燥后的外表层、次外表层、中间芯层和次内表层和内表层原料分别送入各自挤出机进行熔融混炼塑化；
(3)分别将熔融态熔体送入模头，熔体在模头中汇合后通过扁平状的模头口形成熔融态片材；
(4)用气刀将片材贴附于激冷辊上骤冷形成未定型的片材，激冷辊温度为30℃，然后经过水浴冷却后将片材定型形成铸片，水浴温度为55℃；
(5)铸片经拉伸后形成薄膜；
(6)薄膜通过红外线检测厚度将对应厚度偏差反馈到模头，通过对应位置螺栓加热功率微动，对薄膜厚度偏差进行修正；
(7)电晕面进行高频高压火花处理，诱发其表面化学键断裂，改善薄膜的表面润湿性和极性；
(8)将电晕处理后的产品进行冷却并收卷；
(9)对薄膜进行表面张力检测、热收缩率检测、拉伸强度和断裂伸长率弹性模量检测、摩擦系数检测、热封强度检测。
次内表层的原料进行混配时，先将碳酸钙在110℃下干燥4h，按配方比例加入高速混炼机中混合1min，然后加入钛酸酯偶联剂和液体石蜡低速混合3min，进行表面活化处理，然后将共聚聚丙烯、均聚聚丙烯、HDPE、增韧剂及经表面活化处理的碳酸钙混合搅拌均匀，混合搅拌温度为100℃，时间为5min。活化处理的目的在于增加无机填料碳酸钙与共聚聚丙烯、均聚聚丙烯之间的混溶性。
步骤(9)中，热收缩率检测具体为：
用100mm*5mm的取样条沿试样宽度方向均匀截取横向和纵向试样4组，在试样的端部标记横、纵向及序号；将试样放入烘箱中进行加热，加热时间为10min，加热温度为120℃，加热完后取出冷却5min，再对试样的长度进行测量。

Claims (9)

1.高挺度包装薄膜，其特征在于：它由外表层、次外表层、中间芯层和次内表层和内表层组成，其中：
外表层由共聚聚丙烯、抗氧剂、HDPE、叔丁基过氧基异丙苯、硬脂酸镁、硅灰石、防粘连爽滑母料组成；
次外表层由共聚聚丙烯、钛酸酯偶联剂、LLDPE、聚烯烃热塑性弹性体、光稳定剂、滑石粉组成；
中间芯层由均聚聚丙烯、抗静电剂、增挺剂、抗氧剂、脱氧剂、稳定剂、紫外线吸收剂组成；
次内表层由共聚聚丙烯、均聚聚丙烯、碳酸钙、钛酸酯偶联剂、HDPE、液体石蜡和增韧剂组成；
内表层由共聚聚丙烯、防粘连爽滑母料、抗静电剂、氢氧化镁、稀土偶联剂、交联剂、丁苯橡胶、润滑剂、抗氧剂、纳米碳酸钙和β晶成核剂组成。
2.根据权利要求1所述的高挺度包装薄膜，其特征在于：外表层、次外表层、中间芯层和次内表层和内表层的组分按质量比为：外表层15％，次外表层10％，中间芯层50％，次内表层10％，内表层15％。
3.根据权利要求1所述的高挺度包装薄膜，其特征在于：外表层的组分按质量比为：共聚聚丙烯56.6％、抗氧剂0.1％、HDPE 39％、叔丁基过氧基异丙苯0.2％、硬脂酸镁0.1％、硅灰石2％、防粘连爽滑母料2％。
4.根据权利要求1所述的高挺度包装薄膜，其特征在于：次外表层的组分按质量比为：共聚聚丙烯62％、钛酸酯偶联剂2％、LLDPE 20％、聚烯烃热塑性弹性体5％、光稳定剂1％、滑石粉10％。
5.根据权利要求1所述的高挺度包装薄膜，其特征在于：中间芯层的组分按质量比为：均聚聚丙烯96.5％、抗静电剂1％、增挺剂1.5％、抗氧剂0.5％、脱氧剂0.2％、稳定剂0.1％、紫外线吸收剂0.2％。
6.根据权利要求1所述的高挺度包装薄膜，其特征在于：次内表层的组分按质量比为：共聚聚丙烯32％、均聚聚丙烯16.5％、碳酸钙20％、钛酸酯偶联剂0.3％、HDPE 21％、液体石蜡0.2％、增韧剂10％。
7.根据权利要求1所述的高挺度包装薄膜，其特征在于：内表层的组分按质量比为：共聚聚丙烯50％、防粘连爽滑母料1.3％、抗静电剂1％、氢氧化镁15％、稀土偶联剂2％、交联剂3％、丁苯橡胶12％、润滑剂0.5％、抗氧剂0.2％、纳米碳酸钙14％、β晶成核剂1％组成。
8.根据权利要求1所述的高挺度包装薄膜的生产方法，其特征在于包括以下步骤：
(1)外表层、次外表层、中间芯层和次内表层和内表层各组分比例分别称取原料，外表层、次外表层、中间芯层和次内表层和内表层，混配后的原料均进行干燥；
(2)干燥后的外表层、次外表层、中间芯层和次内表层和内表层原料分别送入各自挤出机进行熔融混炼塑化；
(3)分别将熔融态熔体送入模头，熔体在模头中汇合后通过扁平状的模头口形成熔融态片材；
(4)用气刀将片材贴附于激冷辊上骤冷形成未定型的片材，激冷辊温度为20-35℃，然后经过水浴冷却后将片材定型形成铸片；
(5)铸片经拉伸后形成薄膜；
(6)薄膜通过红外线检测厚度将对应厚度偏差反馈到模头，通过对应位置螺栓加热功率微动，对薄膜厚度偏差进行修正；
(7)电晕面进行高频高压火花处理，诱发其表面化学键断裂，改善薄膜的表面润湿性和极性；
(8)将电晕处理后的产品进行冷却并收卷；
(9)对薄膜进行表面张力检测、热收缩率检测、拉伸强度和断裂伸长率弹性模量检测、摩擦系数检测、热封强度检测。
9.根据权利要求8所述的高挺度包装薄膜的生产方法，其特征在于：步骤(9)中，热收缩率检测具体为：
用100mm*5mm的取样条沿试样宽度方向均匀截取横向和纵向试样4组，在试样的端部标记横、纵向及序号；将试样放入烘箱中进行加热，加热时间为5-10min，加热温度为100-120℃，加热完后取出冷却5-10min，再对试样的长度进行测量。
CN202111132781.6A 2021-09-27 2021-09-27 高挺度包装薄膜及其生产方法 Active CN113829712B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111132781.6A CN113829712B (zh) 2021-09-27 2021-09-27 高挺度包装薄膜及其生产方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111132781.6A CN113829712B (zh) 2021-09-27 2021-09-27 高挺度包装薄膜及其生产方法

Publications (2)

Publication Number Publication Date
CN113829712A true CN113829712A (zh) 2021-12-24
CN113829712B CN113829712B (zh) 2023-03-31

Family

ID=78970388

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111132781.6A Active CN113829712B (zh) 2021-09-27 2021-09-27 高挺度包装薄膜及其生产方法

Country Status (1)

Country Link
CN (1) CN113829712B (zh)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003095201A1 (en) * 2002-05-10 2003-11-20 Exxonmobil Corporation Multi-layer heat sealable polyolefin film comprising skin layer and transition layer of differing melting points
CN101659142A (zh) * 2009-06-30 2010-03-03 湖北慧狮塑业股份有限公司 多功能流延聚烯烃增挺薄膜
US20190001648A1 (en) * 2016-04-11 2019-01-03 Jindal Films Americas Llc White, Conformable Films for Pressure-Sensitive-Labeling Applications
CN112208178A (zh) * 2020-10-27 2021-01-12 河北方大包装股份有限公司 一种快递气泡袋用聚烯烃薄膜及其制备方法
CN112936899A (zh) * 2021-01-26 2021-06-11 浙江金瑞薄膜材料有限公司 一种多功能高雾面转移薄膜的生产方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003095201A1 (en) * 2002-05-10 2003-11-20 Exxonmobil Corporation Multi-layer heat sealable polyolefin film comprising skin layer and transition layer of differing melting points
CN101659142A (zh) * 2009-06-30 2010-03-03 湖北慧狮塑业股份有限公司 多功能流延聚烯烃增挺薄膜
US20190001648A1 (en) * 2016-04-11 2019-01-03 Jindal Films Americas Llc White, Conformable Films for Pressure-Sensitive-Labeling Applications
CN112208178A (zh) * 2020-10-27 2021-01-12 河北方大包装股份有限公司 一种快递气泡袋用聚烯烃薄膜及其制备方法
CN112936899A (zh) * 2021-01-26 2021-06-11 浙江金瑞薄膜材料有限公司 一种多功能高雾面转移薄膜的生产方法

Also Published As

Publication number Publication date
CN113829712B (zh) 2023-03-31

Similar Documents

Publication Publication Date Title
JP4327956B2 (ja) 繊維強化ポリプロピレン系複合材料
JPS6225130A (ja) 耐候性の無可塑剤、非架橋および深絞り成形性シ−トおよびその製造法
CN101902101A (zh) 一种三元乙丙冷缩电缆附件及其制备方法
CN103087422A (zh) 一种无规共聚聚丙烯改性料
CN112644123B (zh) 一种增韧型双向拉伸聚乳酸薄膜及其制备方法
EP2116354B1 (en) Heat shrinkable polyolefin film and process for producing the same
CN105328963A (zh) 一种高强抗热抗静电bopp薄膜三层共挤制备方法
KR101215729B1 (ko) 고유동 흐름성을 갖는 열가소성 수지 조성물
JP6005311B1 (ja) 芯材を有する押出し成形品
CN113829712B (zh) 高挺度包装薄膜及其生产方法
CN111303532A (zh) 一种激光焊接聚丙烯材料透光/吸光组合体及其制备方法
CN110903555B (zh) 一种聚丙烯组合物
JP6239848B2 (ja) 熱収縮積層フィルム
CN112210158A (zh) 一种隧道用eva防静电阻燃防水板
KR20040099865A (ko) 캘린더가 가능한 투명 필름 및 시트용 폴리프로필렌계조성물 및 이를 이용한 폴리프로필렌 투명 필름 및 시트의제조방법
CA2510419A1 (en) Multilayer shrink film with polystyrene and plyethylene layers
KR20020032327A (ko) 프로필렌계 중합체 및 그로부터 제조된 필름
CN112266579A (zh) 一种改性聚酯弹性体薄膜及其制备方法
CN110229421B (zh) 一种耐高温注塑聚丙烯材料及其制备方法和应用
JP6969353B2 (ja) 加飾成形体およびその製造方法
JP5334793B2 (ja) 難燃性樹脂フィルム及び難燃性樹脂フィルムの製造方法
CN104194093A (zh) 一种耐油橡胶
EP3546539A1 (en) Rolled body
JP2014047252A (ja) ポリプロピレン系樹脂成形体および樹脂成形体の製造方法
JP6992461B2 (ja) 加飾成形体およびその製造方法

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant