CN107226973A - 一种木制品用包装膜的制备方法 - Google Patents

一种木制品用包装膜的制备方法 Download PDF

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CN107226973A
CN107226973A CN201710469220.2A CN201710469220A CN107226973A CN 107226973 A CN107226973 A CN 107226973A CN 201710469220 A CN201710469220 A CN 201710469220A CN 107226973 A CN107226973 A CN 107226973A
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parts
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packaging film
woodwork
strength
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顾建芳
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Suzhou Austrian Packaging Technology Co Ltd
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Abstract

本发明公开了一种木制品用包装膜的制备方法，原料为：PVC、亚磷酸三苯酯、ACR、硫醇甲基锡、纳米三氧化二铝、UV‑531、甲基丙烯酸甲酯、十溴二苯醚、己二醇月桂酰胺、丙烯酸丁酯、顺丁烯二酸酐、苯甲酸酯、EPP、EP和着色剂；纵向拉伸强度110‑150MPa，横向拉伸强度60‑80 MPa，纵向伸长率400‑500%，横向伸长率600‑800%；熔融时间105‑115s，击穿电压9.8‑12.8kV/mm，撕裂强度100‑140kN/m，缺口冲击强度6.6‑7kJ/m2；弯曲强度42‑46 MPa，邵氏硬度45‑65，自然光老化12个月后拉伸强度损失0.013‑0.017%透光率85‑95%。

Description

一种木制品用包装膜的制备方法
技术领域
本发明涉及包装用材料技术领域，尤其涉及一种木制品用包装膜的制备方法。
背景技术
PVC主要成分为聚氯乙烯，为微黄色半透明状，有光泽。透明度胜于聚乙烯、聚丙烯，差于聚苯乙烯，随助剂用量不同，分为软、硬聚氯乙烯，软制品柔而韧，手感粘，硬制品的硬度高于低密度聚乙烯，而低于聚丙烯，在屈折处会出现白化现象。常见制品：板材、管材、鞋底、玩具、门窗、电线外皮、文具等。是一种使用一个氯原子取代聚乙烯中的一个氢原子的高分子材料。
货物的表面和形状会给人留下第一印象。从这层意义上说，PVC膜的市场前景十分看好。而事实上，随着时代的发展，PVC也正以其良好的性能、简单的工艺以及其他诸多优点渐渐赢得了人们的欢心，已被越来越多的人接受和认可，在欧美国家PVC是建筑行业的宠儿，PVC在人们的日常生活中随处可见。PVC不但可以表现自然界的颜色，还可以表现人们幻想中的颜色。在德国，40%的家具都是用PVC来作表面材料的，看到那些色泽自然、色彩华丽、丰富多样、图案美丽、式样典雅而高档的办公桌、书架、沙发、厨柜，谁也不会把它们和街头那些满目疮痍的“白色垃圾”联想到一起，更不会想到正是PVC吸塑膜赋予了它们如此美丽的外衣。
包装在运输、装卸、储存过程中，为防止外界雨、淡水、海水等渗入包装内，影响内装物资质量，采用某些防水材料作阻隔层，并用防水粘接剂或衬垫、密封等措施，以阻止水浸入包装内部。
为了防止因水侵入包装件而影响内装物品质，所采取一定防护措施的包装称为防水包装。防水包装属于外包装，一些具有保护性的内包装，例如防潮包装、防锈包装、防霉包装、防震包装等，可以与防水包装结合考虑，但不能代替。
PVC可分为软PVC和硬PVC。其中硬PVC大约占市场的2/3，软PVC占1/3。软PVC一般用于地板、天花板以及皮革的表层，但由于软PVC中含有柔软剂，容易变脆,不易保存，所以其使用范围受到了局限。硬PVC不含柔软剂，因此柔韧性好，易成型，不易脆，无毒无污染，保存时间长，因此具有很大的 开发应用价值。
通常，外包装采用防雨水结构，内包装为了防止潮气的影响而采用防潮、防止金属的氧化而采用防锈、防止或抑制霉菌孢子发芽与生长而采用防霉等结构，它们的工艺措施并不完全相同。虽然液态的雨水和气态的水蒸气(潮湿空气)的物理化学性质是相同的，但它们对包装件的侵袭方式和现象是不同的。所以，防雨水包装结构不一定能兼防潮包装的作用。因为，防雨水包装只是单纯为了防止外界雨、雪、霜、露等渗入包装内侵蚀内装物，除非是采用气密性容器包装，它对外界潮湿空气的侵蚀是防止不了的，也不能起阻止作用。要想防止包装内的残存潮气及内装物蒸发出来的潮气对内装物的影响，还必须进行防潮、防锈和防霉包装等。
PVC产业在全世界发展迅速，前景广阔，各国都看好PVC的潜力以及其对生态环境的好处，PVC正以其 优越、独特的性能向世人证明其作用和地位是任何其它产品都无法取代的，社会发展需要它，环境保护需 要它，它是我们人类社会文明进步的必然趋势。
进行防水包装时，需要了解流通环境的降雨气候特点，例如降雨强度情况、降雨分布、持续降雨日数情况。在空投物资时，包装件可能会在水中浸泡一定的时间，这时就要求包装件具有相当的浸水能力。
PVC的生产工艺并不复杂，普通的生产线一般由滚压机、印刷机、背涂机和切割机组成，主要是通过滚压机的直动搅拌，滚轴旋转以及高温滚压生产出厚度仅为0.3 mm至0.7mm的薄膜，生产的同时并且通过印刷机在膜的正面印上花色，通过背涂机在膜的背面附上一层背涂。可不要小看这层背涂，它是PVC膜优质性能的一个重要保证。背涂由特殊材料组成,是一种高能亲和剂,正是由于这层背涂，PVC薄膜才能紧紧地和中密板或其它板材融合在一起，十年甚至十五年不开胶。而普通贴面膜的最大问题就是无法解决膜的脱落问题。由于整套生 产过程都是在高温下(滚压机内温度达到220度)进行的，这就使PVC膜具有高抗光性和耐火性，保证PVC膜的高质量。当然，这对生产机器的要求很高，通常一套生产线的生产设备造价约为3千9百万马克，折合人民币约1.6亿元。但另一方面，PVC膜的生产工艺却相当简单，机器产量也很大，所以全面地看，PVC实际是一种低投入、高产量的产品。
发明内容
本发明提供一种耐热老化、拉伸强度高、冲击强度高和硬度高的木制品用包装膜的制备方法，解决现有防水包装用材料的制备方法硬度低和拉伸强度低等技术问题。
本发明采用以下技术方案：一种木制品用包装膜的制备方法，包括如下步骤：
第一步：按照质量份数配比称取PVC100份，亚磷酸三苯酯0.2-0.8份，ACR22-28份，硫醇甲基锡10-20份，纳米三氧化二铝10-30份，UV-531为0.1-0.3份，甲基丙烯酸甲酯16-20份，十溴二苯醚10-20份，己二醇月桂酰胺3-7份，丙烯酸丁酯2-8份，顺丁烯二酸酐1-5份，苯甲酸酯为0.2-0.6份，EPP20-40份，EP5-9份，着色剂0.006-0.008份；
第二步：将PVC投入高速捏合机中，升温至75-95℃，加入剩余原料，升温至105-125℃，捏合速度1000-1100r/min，捏合13-15min，捏合后的材料二辊塑炼，前辊温度为135-145℃，转速18-20 r/min，后辊145-155℃，转速24-28 r/min，混炼25-35min；
第三步：然后在挤出机挤出片材，料筒温度150-160℃、155-165℃、170-180℃，连接器温度165-175℃、170-180℃，机头温度165-175℃、170-180℃、170-190℃，料筒直径100-150mm，螺杆长径比L/D为20-25，牵引速度20-60m/min。
作为本发明的一种优选技术方案：所述木制品用包装膜的制备方法的原料按质量份数配比如下：PVC100份，亚磷酸三苯酯0.2份，ACR22份，硫醇甲基锡10份，纳米三氧化二铝10份，UV-531为0.1份，甲基丙烯酸甲酯16份，十溴二苯醚10份，己二醇月桂酰胺3份，丙烯酸丁酯2份，顺丁烯二酸酐1份，苯甲酸酯为0.2份，EPP20份，EP5份，着色剂0.006份。
作为本发明的一种优选技术方案：所述木制品用包装膜的制备方法的原料按质量份数配比如下：PVC100份，亚磷酸三苯酯0.8份，ACR28份，硫醇甲基锡20份，纳米三氧化二铝30份，UV-531为0.3份，甲基丙烯酸甲酯20份，十溴二苯醚20份，己二醇月桂酰胺7份，丙烯酸丁酯8份，顺丁烯二酸酐5份，苯甲酸酯为0.6份，EPP40份，EP9份，着色剂0.008份。
作为本发明的一种优选技术方案：所述木制品用包装膜的制备方法的原料按质量份数配比如下：PVC100份，亚磷酸三苯酯0.5份，ACR25份，硫醇甲基锡15份，纳米三氧化二铝20份，UV-531为0.2份，甲基丙烯酸甲酯18份，十溴二苯醚15份，己二醇月桂酰胺5份，丙烯酸丁酯5份，顺丁烯二酸酐3份，苯甲酸酯为0.4份，EPP30份，EP7份，着色剂0.007份。
作为本发明的一种优选技术方案：所述着色剂采用永固紫。
有益效果
本发明所述一种木制品用包装膜的制备方法采用以上技术方案与现有技术相比，具有以下技术效果：1、制备方法简单，节省人力物力，纵向拉伸强度110-150MPa，横向拉伸强度60-80 MPa，纵向伸长率400-500%，横向伸长率600-800%；2、燃烧离火自熄，熔融时间105-115s，击穿电压9.8-12.8kV/mm，撕裂强度100-140kN/m，缺口冲击强度6.6-7kJ/m2；3、弯曲强度42-46 MPa，邵氏硬度45-65，原料来源广泛，成本低廉，自然光老化12个月后拉伸强度损失0.013-0.017%；4、可以在各种极端环境下广泛使用，100℃热老化两个月后拉伸强度损失0.08-0.12%，透光率85-95%，可以广泛生产并不断代替现有木制品用包装膜。
具体实施方式
以下结合实例对本发明作进一步的描述，实施例仅用于对本发明进行说明，并不构成对权利要求范围的限制，本领域技术人员可以想到的其他替代手段，均在本发明权利要求范围内。
实施例1：
第一步：按照质量份数配比称取PVC100份，亚磷酸三苯酯0.2份，ACR22份，硫醇甲基锡10份，纳米三氧化二铝10份，UV-531为0.1份，甲基丙烯酸甲酯16份，十溴二苯醚10份，己二醇月桂酰胺3份，丙烯酸丁酯2份，顺丁烯二酸酐1份，苯甲酸酯为0.2份，EPP20份，EP5份，永固紫0.006份。
第二步：将PVC投入高速捏合机中，升温至75-95℃，加入剩余原料，升温至105-125℃，捏合速度1000-1100r/min，捏合13-15min，捏合后的材料二辊塑炼，前辊温度为135-145℃，转速18-20 r/min，后辊145-155℃，转速24-28 r/min，混炼25-35min；
第三步：然后在挤出机挤出片材，料筒温度150-160℃、155-165℃、170-180℃，连接器温度165-175℃、170-180℃，机头温度165-175℃、170-180℃、170-190℃，料筒直径100-150mm，螺杆长径比L/D为20-25，牵引速度20-60m/min。
制备方法简单，节省人力物力，纵向拉伸强度110MPa，横向拉伸强度60MPa，纵向伸长率400%，横向伸长率600%；燃烧离火自熄，熔融时间105s，击穿电压9.8kV/mm，撕裂强度100kN/m，缺口冲击强度6.6kJ/m2；弯曲强度42MPa，邵氏硬度45，原料来源广泛，成本低廉，自然光老化12个月后拉伸强度损失0.017%；可以在各种极端环境下广泛使用，100℃热老化两个月后拉伸强度损失0.12%，透光率85%，可以广泛生产并不断代替现有木制品用包装膜。
实施例2：
第一步：按照质量份数配比称取PVC100份，亚磷酸三苯酯0.8份，ACR28份，硫醇甲基锡20份，纳米三氧化二铝30份，UV-531为0.3份，甲基丙烯酸甲酯20份，十溴二苯醚20份，己二醇月桂酰胺7份，丙烯酸丁酯8份，顺丁烯二酸酐5份，苯甲酸酯为0.6份，EPP40份，EP9份，永固紫0.008份。
第二步：将PVC投入高速捏合机中，升温至75-95℃，加入剩余原料，升温至105-125℃，捏合速度1000-1100r/min，捏合13-15min，捏合后的材料二辊塑炼，前辊温度为135-145℃，转速18-20 r/min，后辊145-155℃，转速24-28 r/min，混炼25-35min；
第三步：然后在挤出机挤出片材，料筒温度150-160℃、155-165℃、170-180℃，连接器温度165-175℃、170-180℃，机头温度165-175℃、170-180℃、170-190℃，料筒直径100-150mm，螺杆长径比L/D为20-25，牵引速度20-60m/min。
制备方法简单，节省人力物力，纵向拉伸强度130MPa，横向拉伸强度70 MPa，纵向伸长率450%，横向伸长率700%；燃烧离火自熄，熔融时间110s，击穿电压11.8kV/mm，撕裂强度120kN/m，缺口冲击强度6.8kJ/m2；弯曲强度44MPa，邵氏硬度55，原料来源广泛，成本低廉，自然光老化12个月后拉伸强度损失0.015%；可以在各种极端环境下广泛使用，100℃热老化两个月后拉伸强度损失0.1%，透光率90%，可以广泛生产并不断代替现有木制品用包装膜。
实施例3：
第一步：按照质量份数配比称取PVC100份，亚磷酸三苯酯0.5份，ACR25份，硫醇甲基锡15份，纳米三氧化二铝20份，UV-531为0.2份，甲基丙烯酸甲酯18份，十溴二苯醚15份，己二醇月桂酰胺5份，丙烯酸丁酯5份，顺丁烯二酸酐3份，苯甲酸酯为0.4份，EPP30份，EP7份，永固紫0.007份。
第二步：将PVC投入高速捏合机中，升温至75-95℃，加入剩余原料，升温至105-125℃，捏合速度1000-1100r/min，捏合13-15min，捏合后的材料二辊塑炼，前辊温度为135-145℃，转速18-20 r/min，后辊145-155℃，转速24-28 r/min，混炼25-35min；
第三步：然后在挤出机挤出片材，料筒温度150-160℃、155-165℃、170-180℃，连接器温度165-175℃、170-180℃，机头温度165-175℃、170-180℃、170-190℃，料筒直径100-150mm，螺杆长径比L/D为20-25，牵引速度20-60m/min。
制备方法简单，节省人力物力，纵向拉伸强度150MPa，横向拉伸强度80 MPa，纵向伸长率500%，横向伸长率800%；燃烧离火自熄，熔融时间115s，击穿电压12.8kV/mm，撕裂强度140kN/m，缺口冲击强度7kJ/m2；弯曲强度46 MPa，邵氏硬度65，原料来源广泛，成本低廉，自然光老化12个月后拉伸强度损失0.013%；可以在各种极端环境下广泛使用，100℃热老化两个月后拉伸强度损失0.08%，透光率95%，可以广泛生产并不断代替现有木制品用包装膜。

Claims (5)

1.一种木制品用包装膜的制备方法，其特征在于，包括如下步骤：
第一步：按照质量份数配比称取PVC100份，亚磷酸三苯酯0.2-0.8份，ACR22-28份，硫醇甲基锡10-20份，纳米三氧化二铝10-30份，UV-531为0.1-0.3份，甲基丙烯酸甲酯16-20份，十溴二苯醚10-20份，己二醇月桂酰胺3-7份，丙烯酸丁酯2-8份，顺丁烯二酸酐1-5份，苯甲酸酯为0.2-0.6份，EPP20-40份，EP5-9份，着色剂0.006-0.008份；
第二步：将PVC投入高速捏合机中，升温至75-95℃，加入剩余原料，升温至105-125℃，捏合速度1000-1100r/min，捏合13-15min，捏合后的材料二辊塑炼，前辊温度为135-145℃，转速18-20 r/min，后辊145-155℃，转速24-28 r/min，混炼25-35min；
第三步：然后在挤出机挤出片材，料筒温度150-160℃、155-165℃、170-180℃，连接器温度165-175℃、170-180℃，机头温度165-175℃、170-180℃、170-190℃，料筒直径100-150mm，螺杆长径比L/D为20-25，牵引速度20-60m/min。
2.根据权利要求1所述的一种木制品用包装膜的制备方法，其特征在于，所述木制品用包装膜的制备方法的原料按质量份数配比如下：PVC100份，亚磷酸三苯酯0.2份，ACR22份，硫醇甲基锡10份，纳米三氧化二铝10份，UV-531为0.1份，甲基丙烯酸甲酯16份，十溴二苯醚10份，己二醇月桂酰胺3份，丙烯酸丁酯2份，顺丁烯二酸酐1份，苯甲酸酯为0.2份，EPP20份，EP5份，着色剂0.006份。
3.根据权利要求1所述的一种木制品用包装膜的制备方法，其特征在于，所述木制品用包装膜的制备方法的原料按质量份数配比如下：PVC100份，亚磷酸三苯酯0.8份，ACR28份，硫醇甲基锡20份，纳米三氧化二铝30份，UV-531为0.3份，甲基丙烯酸甲酯20份，十溴二苯醚20份，己二醇月桂酰胺7份，丙烯酸丁酯8份，顺丁烯二酸酐5份，苯甲酸酯为0.6份，EPP40份，EP9份，着色剂0.008份。
4.根据权利要求1所述的一种木制品用包装膜的制备方法，其特征在于，所述木制品用包装膜的制备方法的原料按质量份数配比如下：PVC100份，亚磷酸三苯酯0.5份，ACR25份，硫醇甲基锡15份，纳米三氧化二铝20份，UV-531为0.2份，甲基丙烯酸甲酯18份，十溴二苯醚15份，己二醇月桂酰胺5份，丙烯酸丁酯5份，顺丁烯二酸酐3份，苯甲酸酯为0.4份，EPP30份，EP7份，着色剂0.007份。
5.根据权利要求1所述的一种木制品用包装膜的制备方法，其特征在于，所述着色剂采用永固紫。
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