CN107216569A - 一种木制品用防水包装膜的制备方法 - Google Patents
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Abstract
本发明公开了一种木制品用防水包装膜的制备方法,原料为:PVC、丙烯酸、三羟甲基丙烷三丙烯酸酯、偏苯三酸三甲酯、PP、DSTP、硬脂酸铝、硬脂酸钡、硬脂酸锌、石蜡、ESBO、纳米莫来石、纳米二氧化钛、偶氮二异丁腈和着色剂;纵向拉伸强度15‑25MPa,横向拉伸强度14‑18 MPa,纵向伸长率400‑600%,横向伸长率380‑480%;熔融时间95‑115s,透光率88‑92%,撕裂强度700‑900N/cm;弯曲强度36‑40 MPa,邵氏硬度46‑50,自然光老化12个月后拉伸强度损失0.03‑0.07%;100℃热老化两个月后拉伸强度损失0.2‑0.4%。
Description
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防水包装膜的制备方法。
背景技术
PVC是完全无毒无味的,对人体皮肤或是呼吸系统没有任何刺激,对于那些对木料和油漆过敏的人来说,使用PVC膜包装的家具或厨具是非常合适的。通过使用PVC膜作装饰膜,人们就可以大量地避免使用中密板、刨花板、胶合板和纤维板,减少使用木材量,从而减少对森林乃至环境的破。
PVC的使用曾一度在西方国家引起了很大的争议,许多人试图用种种其它材料代替PVC。但事实证明,PVC的质量比其它替代品相比毫不逊色,而在造价上则比这些材料便宜。
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。
从这层意义上说,PVC膜的市场前景十分看好。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。
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。
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防水包装膜的制备方法,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:一种木制品用防水包装膜的制备方法,包括如下步骤:
第一步:按照质量份数配比称取PVC100份,丙烯酸9-11份,三羟甲基丙烷三丙烯酸酯20-40份,偏苯三酸三甲酯10-20份,PP50-90份,DSTP为0.1-0.3份,硬脂酸铝0.6-1份,硬脂酸钡0.5-4.5份,硬脂酸锌0.8-1.2份,石蜡0.5-1.5份,ESBO5-9份,纳米莫来石为0.5-4.5份,纳米二氧化钛1.8-2.2份,偶氮二异丁腈8-10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80-100℃,加入剩余原料,升温至125-135℃,捏合速度1100-1300r/min,捏合8-12min,捏合后的材料二辊塑炼,前辊温度为185-195℃,转速18-20 r/min,后辊165-185℃,转速22-24 r/min,混炼15-25min;
第三步:然后在挤出机挤出片材,料筒温度160-170℃、165-175℃、175-185℃,连接器温度170-180℃、175-185℃,机头温度170-180℃、175-185℃、180-190℃,收卷后检验入库。
作为本发明的一种优选技术方案:所述木制品用防水包装膜的制备方法的原料按质量份数配比如下:PVC100份,丙烯酸9份,三羟甲基丙烷三丙烯酸酯20份,偏苯三酸三甲酯10份,PP50份,DSTP为0.1份,硬脂酸铝0.6份,硬脂酸钡0.5份,硬脂酸锌0.8份,石蜡0.5份,ESBO5份,纳米莫来石为0.5份,纳米二氧化钛1.8份,偶氮二异丁腈8份,着色剂0.006份。
作为本发明的一种优选技术方案:所述木制品用防水包装膜的制备方法的原料按质量份数配比如下:PVC100份,丙烯酸11份,三羟甲基丙烷三丙烯酸酯40份,偏苯三酸三甲酯20份,PP90份,DSTP为0.3份,硬脂酸铝1份,硬脂酸钡4.5份,硬脂酸锌1.2份,石蜡1.5份,ESBO9份,纳米莫来石为4.5份,纳米二氧化钛2.2份,偶氮二异丁腈10份,着色剂0.008份。
作为本发明的一种优选技术方案:所述木制品用防水包装膜的制备方法的原料按质量份数配比如下:PVC100份,丙烯酸10份,三羟甲基丙烷三丙烯酸酯30份,偏苯三酸三甲酯15份,PP70份,DSTP为0.2份,硬脂酸铝0.8份,硬脂酸钡2.5份,硬脂酸锌1份,石蜡1份,ESBO7份,纳米莫来石为2.5份,纳米二氧化钛2份,偶氮二异丁腈9份,着色剂0.007份。
作为本发明的一种优选技术方案:所述着色剂采用酞菁红。
有益效果
本发明所述一种木制品用防水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15-25MPa,横向拉伸强度14-18 MPa,纵向伸长率400-600%,横向伸长率380-480%;2、燃烧离火自熄,熔融时间95-115s,透光率88-92%,撕裂强度700-900N/cm,;3、弯曲强度36-40 MPa,邵氏硬度46-50,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0.03-0.07%;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0.2-0.4%,可以广泛生产并不断代替现有木制品用防水包装膜。
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,丙烯酸9份,三羟甲基丙烷三丙烯酸酯20份,偏苯三酸三甲酯10份,PP50份,DSTP为0.1份,硬脂酸铝0.6份,硬脂酸钡0.5份,硬脂酸锌0.8份,石蜡0.5份,ESBO5份,纳米莫来石为0.5份,纳米二氧化钛1.8份,偶氮二异丁腈8份,酞菁红0.006份。
第二步:将PVC投入高速捏合机中,升温至80-100℃,加入剩余原料,升温至125-135℃,捏合速度1100-1300r/min,捏合8-12min,捏合后的材料二辊塑炼,前辊温度为185-195℃,转速18-20 r/min,后辊165-185℃,转速22-24 r/min,混炼15-25min;
第三步:然后在挤出机挤出片材,料筒温度160-170℃、165-175℃、175-185℃,连接器温度170-180℃、175-185℃,机头温度170-180℃、175-185℃、180-190℃,收卷后检验入库。
制备方法简单,节省人力物力,纵向拉伸强度15MPa,横向拉伸强度14MPa,纵向伸长率400%,横向伸长率380%;燃烧离火自熄,熔融时间95s,透光率88%,撕裂强度700N/cm,;弯曲强度36 MPa,邵氏硬度46,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0.07%;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0.4%,可以广泛生产并不断代替现有木制品用防水包装膜。
实施例2:
第一步:按照质量份数配比称取PVC100份,丙烯酸11份,三羟甲基丙烷三丙烯酸酯40份,偏苯三酸三甲酯20份,PP90份,DSTP为0.3份,硬脂酸铝1份,硬脂酸钡4.5份,硬脂酸锌1.2份,石蜡1.5份,ESBO9份,纳米莫来石为4.5份,纳米二氧化钛2.2份,偶氮二异丁腈10份,酞菁红0.008份。
第二步:将PVC投入高速捏合机中,升温至80-100℃,加入剩余原料,升温至125-135℃,捏合速度1100-1300r/min,捏合8-12min,捏合后的材料二辊塑炼,前辊温度为185-195℃,转速18-20 r/min,后辊165-185℃,转速22-24 r/min,混炼15-25min;
第三步:然后在挤出机挤出片材,料筒温度160-170℃、165-175℃、175-185℃,连接器温度170-180℃、175-185℃,机头温度170-180℃、175-185℃、180-190℃,收卷后检验入库。
制备方法简单,节省人力物力,纵向拉伸强度20MPa,横向拉伸强度16 MPa,纵向伸长率500%,横向伸长率440%;燃烧离火自熄,熔融时间105s,透光率90%,撕裂强度800N/cm,;弯曲强度38 MPa,邵氏硬度48,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0.05%;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0.3%,可以广泛生产并不断代替现有木制品用防水包装膜。
实施例3:
第一步:按照质量份数配比称取PVC100份,丙烯酸10份,三羟甲基丙烷三丙烯酸酯30份,偏苯三酸三甲酯15份,PP70份,DSTP为0.2份,硬脂酸铝0.8份,硬脂酸钡2.5份,硬脂酸锌1份,石蜡1份,ESBO7份,纳米莫来石为2.5份,纳米二氧化钛2份,偶氮二异丁腈9份,酞菁红0.007份。
第二步:将PVC投入高速捏合机中,升温至80-100℃,加入剩余原料,升温至125-135℃,捏合速度1100-1300r/min,捏合8-12min,捏合后的材料二辊塑炼,前辊温度为185-195℃,转速18-20 r/min,后辊165-185℃,转速22-24 r/min,混炼15-25min;
第三步:然后在挤出机挤出片材,料筒温度160-170℃、165-175℃、175-185℃,连接器温度170-180℃、175-185℃,机头温度170-180℃、175-185℃、180-190℃,收卷后检验入库。
制备方法简单,节省人力物力,纵向拉伸强度25MPa,横向拉伸强度18 MPa,纵向伸长率600%,横向伸长率480%;燃烧离火自熄,熔融时间115s,透光率92%,撕裂强度900N/cm,;弯曲强度40 MPa,邵氏硬度50,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0.07%;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0.2%,可以广泛生产并不断代替现有木制品用防水包装膜。
Claims (5)
1.一种木制品用防水包装膜的制备方法,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,丙烯酸9-11份,三羟甲基丙烷三丙烯酸酯20-40份,偏苯三酸三甲酯10-20份,PP50-90份,DSTP为0.1-0.3份,硬脂酸铝0.6-1份,硬脂酸钡0.5-4.5份,硬脂酸锌0.8-1.2份,石蜡0.5-1.5份,ESBO5-9份,纳米莫来石为0.5-4.5份,纳米二氧化钛1.8-2.2份,偶氮二异丁腈8-10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80-100℃,加入剩余原料,升温至125-135℃,捏合速度1100-1300r/min,捏合8-12min,捏合后的材料二辊塑炼,前辊温度为185-195℃,转速18-20 r/min,后辊165-185℃,转速22-24 r/min,混炼15-25min;
第三步:然后在挤出机挤出片材,料筒温度160-170℃、165-175℃、175-185℃,连接器温度170-180℃、175-185℃,机头温度170-180℃、175-185℃、180-190℃,收卷后检验入库。
2.根据权利要求1所述的一种木制品用防水包装膜的制备方法,其特征在于,所述木制品用防水包装膜的制备方法的原料按质量份数配比如下:PVC100份,丙烯酸9份,三羟甲基丙烷三丙烯酸酯20份,偏苯三酸三甲酯10份,PP50份,DSTP为0.1份,硬脂酸铝0.6份,硬脂酸钡0.5份,硬脂酸锌0.8份,石蜡0.5份,ESBO5份,纳米莫来石为0.5份,纳米二氧化钛1.8份,偶氮二异丁腈8份,着色剂0.006份。
3.根据权利要求1所述的一种木制品用防水包装膜的制备方法,其特征在于,所述木制品用防水包装膜的制备方法的原料按质量份数配比如下:PVC100份,丙烯酸11份,三羟甲基丙烷三丙烯酸酯40份,偏苯三酸三甲酯20份,PP90份,DSTP为0.3份,硬脂酸铝1份,硬脂酸钡4.5份,硬脂酸锌1.2份,石蜡1.5份,ESBO9份,纳米莫来石为4.5份,纳米二氧化钛2.2份,偶氮二异丁腈10份,着色剂0.008份。
4.根据权利要求1所述的一种木制品用防水包装膜的制备方法,其特征在于,所述木制品用防水包装膜的制备方法的原料按质量份数配比如下:PVC100份,丙烯酸10份,三羟甲基丙烷三丙烯酸酯30份,偏苯三酸三甲酯15份,PP70份,DSTP为0.2份,硬脂酸铝0.8份,硬脂酸钡2.5份,硬脂酸锌1份,石蜡1份,ESBO7份,纳米莫来石为2.5份,纳米二氧化钛2份,偶氮二异丁腈9份,着色剂0.007份。
5.根据权利要求1所述的一种木制品用防水包装膜的制备方法,其特征在于,所述着色剂采用酞菁红。
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