CN105602097A - 一种保温隔热轻量化箱体及其制备方法 - Google Patents
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Abstract
本发明提供了一种箱体,所述箱体材料包括:B和C的双层复合体叠加16-3000层而成的叠加复合体,所述B为高融体强度聚丙烯(HMSPP)发泡物,所述C为均聚聚丙烯或碳酸钙聚丙烯。本发明提供的箱体具有保温、隔热、无毒、可微波、可烘烤、轻量化等特性,真正实现了绿色、环保多用途特性。
Description
技术领域
本发明涉及一种箱体,尤其涉及一种保温隔热轻量化箱体。
背景技术
在工业生产和物流转运、储存等领域,如周转箱,储存箱等,是不可或缺的工具。其中,周转箱也称为物流箱,广泛用于机械、汽车、家电、轻工、电子等行业,其周转便捷、堆放整齐,便于管理。适用于工厂物流中的运输、配送、储存、流通加工等环节。周转箱可与多种物流容器和工位器具配合,用于各类仓库、生产现场等多种场合,在物流管理越来越被广大企业重视的今天,周转箱帮助完成物流容器的通用化、一体化管理,是生产及流通企业进行现代化物流管理的必备品。
但是,在现有技术中,这些储存箱、周转箱等,有以聚丙烯、聚乙烯、聚氯乙烯等为基材,这些制品密度大于0.90g/cm3,低温时易变脆、不耐磨、易老化等缺点,同时还存在箱体自身较重,承重力不好、易损坏,拉高了运输和转运成本等问题。尤其是对于一些需要特殊储藏、转运的货品,如海鲜,医药化工类产品,难以在储藏、流通中保持货物品质。
发明内容
本发明提供的箱体具有保温、隔热、无毒、可微波、可烘烤、轻量化等特性,真正实现了绿色、环保多用途特性。
本发明的目的是通过以下措施实现的:
一种箱体,所述箱体材料包括:B和C的双层复合体叠加16-3000层而成的叠加复合体,所述B为高融体强度聚丙烯(HMSPP)发泡物,所述C为均聚聚丙烯或碳酸钙聚丙烯。本发明所述的叠加是B料和C料的物理成层粘合,不发生化学反应和物料的无序混合。本发明大大提高了材料的应用性能,如力学强度、阻隔性等等。优选地,上述高融体强度聚丙烯与C的重量比为(80~90)∶(5~10)。
上述高融体强度聚丙烯发泡物的发泡剂E为碳酸氢钠。其优选用量为高融体强度聚丙烯∶E-碳酸氢钠=(80~90)∶(2~5),重量比计。
为了覆盖、着色等,上述材料可以包括均聚聚丙烯。均聚聚丙烯中可以添加F-色母料,用量为总量的5wt‰-5wt%。进一步地,各组分的配比优选为包括:A-均聚聚丙烯5-10份、高融体聚丙烯80-90份、C-均聚PP或碳酸钙聚丙烯5-10份、E-碳酸氢钠2-5份,以重量比计。碳酸钙聚丙烯中碳酸钙含量为10-30wt%。
具体地,上述材料按照A-(BC)n-A的排列方式复合。其中n为BC层状结构的层数;n=16~3000。
上述箱体在货物的周转、储存、包装中的应用,优选为周转箱或包装箱。包括折叠式和非折叠式。
优选地,上述周转箱,包括箱体材料制作而成的片材,片材上设置有用于折叠箱体的折痕,通过折痕形成具有开口的箱体,开口端的四边嵌合设置加强筋,每边两端设置有凸台(堆码、定位)。
上述包装箱,包括箱体材料制作而成的片材,片材上设置有用于折叠箱体的折痕,通过折痕形成封口箱体,用于货物的包装和盛放。
本发明的另一目的在于提供上述箱体的制备方法。其通过以下措施实现的:
上述箱体的制备方法,将B、C分别经混炼塑化挤出,经分配成B和C的双层复体,双层复体叠加16-3000层形成叠加复合体,将其与其它混炼塑化挤出物经分配挤出复合材料;所述挤出温度控制在160-280℃。
上述箱体的制备方法,包括以下步骤:
(1)根据不同要求在A加入色母料,拌匀,投入A挤出机内,高融体强度聚丙烯加入E-碳酸氢钠混匀后加入B挤出机料斗内,C加入C挤出机料斗内,挤出加工温度控制在160-280℃;
(2)高融体强度聚丙烯与E-碳酸氢钠的混合料经B挤出机混炼塑化挤出,C料经C挤出机混炼塑化挤出;经过分配器分成B和C的双层复体,然后叠加挤出16-3000层的叠加复合体;A的混合料经A挤出机混炼塑化挤出,通过分配机将A挤出产物、叠加复合体再次经分配挤出,经过T型头模具形成A-(BC)n-A表面不同或相同颜色及性能的中间为BC层状结构的发泡复合材料,经压制、牵引、切片加工成不同宽度和厚度的片材,转至下层工序;
(3)将制作出来不同规格、发泡倍率和颜色的片材,送至热成型机,根据不同需求,将片材送入烘箱烘软,温度控制在180-350℃,烘烤时间在5-180s;通过冲切、压痕、铆焊成箱体,制得。
有益效果
1.本发明的箱体具有保鲜隔热的作用,可回收、可分解、可微波、可烘烤、保温、无毒等特性,真正实现了绿色、环保的多用途特性,尤其适用于海鲜、医药化工产品的储存、盛放、运输。
2.本发明物理性能、耐高低温性能、耐微波性能优异。
3.本发明耐酸碱、耐腐蚀,轻量化,且易于加工、折叠成型且耐用不易损坏断裂。
具体实施方式
下面结合具体实施例对本发明作进一步阐述,但本发明并不限于以下实施例。所述方法如无特别说明均为常规方法。所述原材料如无特别说明均能从公开商业途径而得。
实施例1
一种保温隔热轻量化箱体,各组分的配比如下所示:A-均聚聚丙烯(均聚PP)8份;高融体强度聚丙烯85份(中国石化燕山石化公司)、C-碳酸钙聚丙烯(其中碳酸钙含量为30wt%)8份、A-均聚PP8份、E-碳酸氢钠3份;A中添加10wt‰F-色母料。其制备方法按以下步骤:
(1)在两份A中分别加入色母料,拌匀,分别投入A挤出机料斗内;高融体强度聚丙烯加入E-碳酸氢钠发泡,然后加入B挤出机料斗内;C加入C挤出机料斗内;挤出加工温度控制在220℃;
(2)B高融体强度聚丙烯发泡物经B挤出机混炼塑化挤出,C料经C挤出机混炼塑化挤出;经过分配器分成B和C组成的双层复体(BC层状结构),然后进入叠加机叠加挤出16-3000层的叠加层状复合体;A的混合料经A挤出机混炼塑化挤出,通过分配机将A挤出产物、叠加复合体再次经分配挤出A、BC、BC…A(或者描述为A-(BC)n-A),的复合材料,经过T型头模具形成A-(BC)n-A表面不同或相同颜色及性能的中间为BC层状结构的发泡复合材料,经压制、牵引、切片加工成不同宽度和厚度的片材,转至下层工序;
(3)将制作出的片材,送至热成型机,送入烘箱烘软,温度控制在280℃,烘烤时间在60s;通过冲切、压痕、铆焊成箱体。制得的箱体可用于货品的包装、运输转运以及储存。如:周转箱,其箱体材料制作而成的片材上设置有用于折叠箱体的折痕,通过折痕形成具有开口的箱体,开口端的四边嵌合设置加强筋,每边两端设置有凸台(堆码、定位);包装箱,箱体材料制作而成的片材上设置有用于折叠箱体的折痕,通过折痕形成封口箱体,用于货物的包装和盛放。得到的箱体产品表面光滑、平整,无伤痕,凹凸、裂纹、杂质等,色泽均匀一致。
1.本产品的物理性能如表1所示。
表1
透氧性测试条件:温度23℃,压力760mmHg。
2.耐高温测试:①将箱体每5个一组叠放放于恒定160℃的电烤箱内,测试结果表2。
表2
②将箱体每5个一组叠放于恒定220℃的电烤箱内,测试结果表3。
表3
3.经检测,本产品符合GB14934-94和GB-9688-1988、GB18006.1-2009。
4.按照GB5009.12-2010等检测结果:蒸发残渣_水=7.4mg/L、蒸发残渣乙醇=2.7mg/L、蒸发残渣_乙酸=8.65mg/L,蒸发残渣_正己烷=4.7mg/L。
5.箱体长期(12个月以上)分别或者交替置于90℃和-50℃环境中,其性能(如表1中的物理性能)不变。耐腐蚀实验:分别浸泡于饱和氢氧化钙溶液和20%的氯化氢,48h,产品无变化。
6.本产品的检测结果如表4。
表4
Claims (10)
1.一种箱体,其特征在于,所述箱体材料包括:B和C的双层复合体叠加16-3000层而成的叠加复合体,所述B为高融体强度聚丙烯发泡物,所述C为均聚聚丙烯或碳酸钙聚丙烯。
2.如权利要求1所述的箱体,所述高融体强度聚丙烯与C的重量比为(80~90):(5~10)。
3.如权利要求1或2所述的箱体,所述高融体强度聚丙烯发泡物的发泡剂为碳酸氢钠。
4.如权利要求3所述的箱体,高融体强度聚丙烯:碳酸氢钠=(80~90):(2~5),重量比计。
5.如权利要求1-4任一所述的箱体,所述材料还可以包括均聚聚丙烯;所述均聚聚丙烯分别作为A料两份,各组分的配比为:A-均聚聚丙烯5-10份、高融体聚丙烯80-90份、C-均聚PP或碳酸钙5-10份、E-碳酸氢钠2-5份,以重量比计。
6.如权利要求5所述的箱体,A中可以添加F-色母料,用量为5wt‰-5wt%。
7.如权利要求5或6所述的箱体,按照A-(BC)n-A的排列方式复合,其中n为BC层状结构的层数;n=16~3000。
8.如权利要求1-7所述的箱体在货物的周转、储存、包装中的应用;优选为周转箱或包装箱。
9.如权利要求-7任一所述的箱体的制备方法,将B、C分别经混炼塑化挤出,经分配成B和C的双层复体,双层复体叠加16-3000层形成叠加复合体,将其与其它混炼塑化挤出物经分配挤出复合材料;所述挤出温度控制在160-280℃。
10.如权利要求9所述的箱体的制备方法,包括以下步骤:
(1)在A加入色母料,拌匀,投入A挤出机料斗内,高融体强度聚丙烯加入E-碳酸氢钠混匀后加入B挤出机料斗内,C加入C挤出机料斗内,挤出加工温度控制在160-280℃;
(2)高融体强度聚丙烯与E-碳酸氢钠的混合料经B挤出机混炼塑化挤出,C料经C挤出机混炼塑化挤出;经过分配器分成B和C的双层复体,然后叠加挤出16-3000层的叠加复合体;A的混合料经A挤出机混炼塑化挤出,通过分配机将A挤出产物、叠加复合体再次分配挤出,经T型头模具形成A-(BC)n-A的发泡复合材料,经压制、牵引、切片加工成片材;
(3)将片材送入烘箱烘软,温度控制在180-350℃,烘烤时间在5-180s;通过冲切、压痕、铆焊成箱体。
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CN200981360Y (zh) * | 2006-05-12 | 2007-11-28 | 施达玉 | 一种塑制夹芯板 |
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CN200981360Y (zh) * | 2006-05-12 | 2007-11-28 | 施达玉 | 一种塑制夹芯板 |
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