CN104109273A - 低雾度ldpe缠绕包装膜 - Google Patents

低雾度ldpe缠绕包装膜 Download PDF

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CN104109273A
CN104109273A CN201310132984.4A CN201310132984A CN104109273A CN 104109273 A CN104109273 A CN 104109273A CN 201310132984 A CN201310132984 A CN 201310132984A CN 104109273 A CN104109273 A CN 104109273A
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ldpe
haze
low
packaging film
film
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黄丽红
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SHANGHAI YINGZHI RUBBER PLASTIC PRODUCT CO Ltd
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SHANGHAI YINGZHI RUBBER PLASTIC PRODUCT CO Ltd
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/05—Alcohols; Metal alcoholates
    • C08K5/053—Polyhydroxylic alcohols
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/10—Esters; Ether-esters
    • C08K5/101—Esters; Ether-esters of monocarboxylic acids
    • C08K5/103—Esters; Ether-esters of monocarboxylic acids with polyalcohols
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/10—Esters; Ether-esters
    • C08K5/11—Esters; Ether-esters of acyclic polycarboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/15—Heterocyclic compounds having oxygen in the ring
    • C08K5/151—Heterocyclic compounds having oxygen in the ring having one oxygen atom in the ring
    • C08K5/1515—Three-membered rings
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/04—Homopolymers or copolymers of ethene
    • C08J2323/06—Polyethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/16—Applications used for films
    • 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
    • C08L2207/066—LDPE (radical process)

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Abstract

本发明公开了一种低雾度LDPE缠绕包装膜，由下述组分按重量份组成：LDPE100份，已二酸二壬酯1-2份，山梨醇油酸单甘油脂0.5-1.5份，环氧大豆油0.5-1.5份，二（3,4-二甲基苯亚甲基）山梨醇0.2-0.4份。按本行业通用方法即可制备该低雾度LDPE缠绕包装膜。例如，按照配方将各原料在190-210℃混合，T型口模挤出流延薄膜，得到厚度为30-40μm的低雾度LDPE缠绕包装膜。本发明的低雾度LDPE缠绕包装膜，拉升强度大，雾度低，防雾滴性好。

Description

低雾度LDPE缠绕包装膜
技术领域
本发明涉及一种包装材料，尤其涉及一种低雾度LDPE缠绕包装膜。 
背景技术
缠绕包装膜，又叫拉伸膜(stretch fllm),还叫弹性膜或拉伸膜，通常是采用进口线性聚乙烯LLDPE树脂及增粘剂特种助剂比例配方生产。国内最早以PVC为基材，DOA为增塑剂兼起自粘作用生产PVC缠绕膜。由于环保问题、成本高(相对PE比重大，单位包装面积少)、拉伸性差等原因，当1994-1995年国内开始生产PE拉伸膜时逐步被淘汰。PE拉伸膜先是以EVA为自粘材料，但其成本高，又有味道，后发展用PIB、VLDPE为自粘材料，基材现在以LLDPE为方，包括C4、C6、C8及茂金属PE(MPE)。 
早期LLDPE拉伸膜以吹膜为多，从单层发展到二层、三层；现在以流延法生产LLDPE拉伸膜为主，这是因为流延线生产具有厚薄均匀、透明度高等优点，可适用于高倍率预拉伸的要求。由于单层流延做不到单面粘，应用领域受到局限。单、双层流延在材料选择上没有三层流延的广，配方成本也高，所以还是以三层共挤的结构较为理想。优质的拉伸膜应具有透明度高，纵向伸长率高，屈服点高，横向撕裂强度高，穿刺性能好等特点。 
缠绕膜用途及通用性质，如下： 
单元化：这是缠绕膜包装的最大特性之一。借助薄膜超强的缠绕力和回缩性，将产品紧凑地、固定地捆扎成一个单元，使零散小件成为一个整体，即使在不利的环境下产品也无任何松散与分离，度且没有尖锐的边缘和粘性，以免造成损伤。 
初级保护性：初级保护性提供产品的表面保护，在产品周围形成一个很轻的、保护性外表，从而达到防尘、防油、防潮、防水、防盗的目的。尤为重要的是缠绕膜包装使包装物品均匀受力，避免受力不均对物品造成损伤，这是传统包装方式（捆扎、打包、胶带等包装）无法做到的。 
压缩固定性：借助缠绕膜拉伸后的回缩力将产品进行缠绕包装，形成一个紧凑的、不占空间的单元整体，使产品各托盘紧密地包裹在一起，可有效地防止运输过程中产品的相互错位与移动，拉伸缠绕膜同时可调整的拉伸力可以使硬质产品紧贴，使软质产品紧缩，尤其是在烟草业以及纺织业中有独特的包装效果。 
成本节约性：利用缠绕膜进行产品包装，可以有效降低使用成本，采用缠绕膜只有原本箱包装的15%左右，热收缩膜的35%左右，纸箱包装的50%左右。同时可以降低工人劳动强度，提高包装效率以及包装档次。 
发明内容
针对现有技术中存在的上述不足，本发明所要解决的技术问题是提供一种低雾度LDPE缠绕包装膜。 
本发明所要解决的技术问题，是通过如下技术方案实现的： 
一种低雾度LDPE缠绕包装膜，由下述组分按重量份组成：LDPE100份，己二酸二壬酯1-2份，山梨醇油酸单甘油脂0.5-1.5份，环氧大豆油0.5-1.5份,二（3,4-二甲基苯亚甲基）山梨醇0.2-0.4份。 
按本行业通用方法即可制备该低雾度LDPE缠绕包装膜。例如，按照配方将各原料在190-210℃混合，T型口模挤出流延薄膜，得到厚度为30-40μm的低雾度LDPE缠绕包装膜。 
本发明的低雾度LDPE缠绕包装膜，拉升强度大，雾度低，防雾滴性好。 
具体实施方式
通过实施例对本发明作进一步说明，但本发明并不受以下实施例所限定。 
实施例1 
称取：LDPE100公斤，己二酸二壬酯1.5公斤，山梨醇油酸单甘油脂1公斤，环氧大豆油1公斤,二（3,4-二甲基苯亚甲基）山梨醇0.3公斤。 
按本行业通用方法即可制备该低雾度LDPE缠绕包装膜。例如，按照配方将各原料在200℃混合，T型口模挤出流延薄膜，得到厚度为30-40μm的低雾度LDPE缠绕包装膜。 
测试：纵拉伸强度为26.2MPa，横拉伸强度为12.4MPa，雾度1.2%。 
本发明的低雾度LDPE缠绕包装膜，拉升强度大，雾度低，防雾滴性好。 
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本领域的技术人员在本发明所揭露的技术范围内，可不经过创造性劳动想到的变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应该以权利要求书所限定的保护范围为准。 

Claims (1)

1.一种低雾度LDPE缠绕包装膜，其特征在于，由下述组分按重量份组成：LDPE100份，已二酸二壬酯1-2份，山梨醇油酸单甘油脂0.5-1.5份，环氧大豆油0.5-1.5份,二（3,4-二甲基苯亚甲基）山梨醇0.2-0.4份。
CN201310132984.4A 2013-04-16 2013-04-16 低雾度ldpe缠绕包装膜 Pending CN104109273A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113817296A (zh) * 2021-09-16 2021-12-21 宿迁联盛科技股份有限公司 一种新型生物可降解缠绕膜专用料及其制备方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113817296A (zh) * 2021-09-16 2021-12-21 宿迁联盛科技股份有限公司 一种新型生物可降解缠绕膜专用料及其制备方法

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Application publication date: 20141022