CN106279922A - 一种环保塑木复合托盘及其制备方法 - Google Patents

一种环保塑木复合托盘及其制备方法 Download PDF

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CN106279922A
CN106279922A CN201610771470.7A CN201610771470A CN106279922A CN 106279922 A CN106279922 A CN 106279922A CN 201610771470 A CN201610771470 A CN 201610771470A CN 106279922 A CN106279922 A CN 106279922A
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许开强
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Abstract

本发明公开了一种环保塑木复合托盘及其制备方法,属于塑木复合材料领域。该托盘包括以下重量份的原料制成:改性竹屑粉15‑35份、碳纤维5‑8份、废旧聚乙烯粒子85‑95份、安息香丁醚0.6‑1份、N,N‑亚甲基双丙烯酰胺3‑4份、硅油2‑5份、聚乙烯蜡0.5‑2份、硬脂酸钙0.5‑1.5份、纳米硅藻土4‑6份、氧化锌1‑2份、环氧大豆油1‑2份、色母料1‑2份、甘油0.2‑0.8份。本发明将竹屑粉、废旧聚乙烯先后改性,再加入其它辅助剂制成快了成本低、质量轻、表面光洁、色彩多样的塑木复合托盘;在节约资源的同时,达到了节能环保效果。

Description

一种环保塑木复合托盘及其制备方法
技术领域
本发明属于塑木复合材料领域,具体是一种环保塑木复合托盘及其制备方法。
背景技术
木塑复合材料是以木质纤维为原料与塑料通过增容共混工艺加工成型使其成为具有二者优点的高性能、高附加值的新型复合材料。目前木塑加工行业中塑料基体一般选用熔点相对较低的高密度聚乙烯、聚丙烯、聚苯乙烯、聚氯乙烯等,其中以高密度聚乙烯应用较为广泛,而填充纤维则常选用廉价的具有高长径比的天然植物纤维,如木粉、甘蔗渣、稻壳粉、棉桔杆、亚麻。
木塑复合材料的推广和应用还可以解决由于废旧塑料无法回收对环境造成污染的问题,并使纤维废弃资源得到充分利用,具有一定的社会效益。但植物纤维的主要成分纤维素、半纤维素和木质素等含有大量的极性羟基和酚羟基官能团,使其表现出很强的化学极性。而热塑性塑料多数为非极性,具有憎水性,两者复合时,亲水性的纤维与憎水性的塑料基体之间,存在着较高的界面能差,两者很难达到充分的界面融合。且由于植物纤维表面存在有大量的羟基,易形成氢键而聚集,使植物纤维不能在塑料基体中均匀分散,造成分散性不佳,这使得应力在界面不能有效地传递,所制复合材料的冲击强度和拉伸强度会显著降低,从而影响复合材料的综合性能。因为了提高木塑复合材料内各相材料的相容性和分散性,通常需要加入偶联剂、相容剂以及一些其他助剂来改善材料之间的界面相容性。
目前随着木塑复合材料制备领域发展日益成熟,目前制备木塑复合材料的主要成型工艺有:挤出成型、热压成型以及挤压成型工艺。木塑制品的应用已经遍布建筑、物流、室内装潢、园林等各个行业。其今后的应用趋势将主要向着高档化、高附加值功能化的方向发展。但是木塑复合材料由于其制备材料的限制,其强度低,韧性差,明显制约了其使用范围。
发明内容
本发明所要解决的技术问题是针对现有技术存在不足,提供一种环保塑木复合托盘及其制备方法。
为了达到上述目的,本发明采用以下技术方案。
一种环保塑木复合托盘,包括以下重量份的原料:改性竹屑粉15-35份、碳纤维5-8份、废旧聚乙烯粒子85-95份、安息香丁醚0.6-1份、N,N-亚甲基双丙烯酰胺3-4份、硅油2-5份、聚乙烯蜡0.5-2份、硬脂酸钙0.5-1.5份、纳米硅藻土4-6份、氧化锌1-2份、环氧大豆油1-2份、色母料1-2份、甘油0.2-0.8份。
作为优选,所述环保塑木复合托盘,包括以下重量份的原料:改性竹屑粉25份、碳纤维6.5份、废旧聚乙烯粒子90份、安息香丁醚0.8份、N,N-亚甲基双丙烯酰胺3.5份、硅油3.5份、聚乙烯蜡1.5份、硬脂酸钙1份、纳米硅藻土5份、氧化锌1.5份、环氧大豆油1.5份、色母料1.5份、甘油0.5份。
所述环保塑木复合托盘的制备方法,包括以下步骤:
⑴将竹屑粉浸入0.4-0.6mol/L的氢氧化钠溶液中,在95-100℃处理45-100min,取出竹屑粉后进行烘干,烘干温度105-110℃,烘干后的竹屑粉与丁二酸酐按1:1的质量比混合后加入N,N-二甲基甲酰胺中进行酰化反应,在80-100℃反应1-2h,105-110℃烘干酰化反应后竹屑粉,得到改性竹屑粉;将废旧聚乙烯粒子、安息香丁醚、N,N-亚甲基双丙烯酰胺在混炼机中于160-165℃进行混炼10-12min,得到的混合物送入造粒机造粒,粒子用高压汞灯辐照处理,光源功率1000-4000W,辐照间距8-12cm,辐照时间15-30s,辐照结束后得到改性废旧聚乙烯粒子;
⑵将改性竹屑粉、碳纤维、改性废旧聚乙烯粒子、硅油、聚乙烯蜡、硬脂酸钙、纳米硅藻土、氧化锌、环氧大豆油、色母料、甘油放入高速搅拌机中混合30-45min,得到混合粉料;
⑶将混合粉料装入模具中,在平板硫化机上升温至165-180℃,升压至5-8MPa,恒温恒压下使混合物料熔结成密实材料后,恒压冷却至室温,模压成型得到塑木复合托盘。
本发明的有益技术效果:本发明将竹屑粉、废旧聚乙烯先后改性,再加入其它辅助剂制成快了成本低、质量轻、表面光洁、色彩多样的塑木复合托盘;在节约资源的同时,达到了节能环保效果。
具体实施方式
下面结合实施例进一步对本发明的技术方案作详细的阐述,但不都成对本发明的范围性限制。
实施例1
一种环保塑木复合托盘,包括以下重量份的原料:改性竹屑粉15份、碳纤维5份、废旧聚乙烯粒子85份、安息香丁醚0.6份、N,N-亚甲基双丙烯酰胺3份、硅油2份、聚乙烯蜡0.5份、硬脂酸钙0.5份、纳米硅藻土4份、氧化锌1份、环氧大豆油1份、氧化铁红1份、甘油0.2份。
所述环保塑木复合托盘的制备方法,包括以下步骤:
⑴将竹屑粉浸入0.4mol/L的氢氧化钠溶液中,在95℃处理45min,取出竹屑粉后进行烘干,烘干温度105℃,烘干后的竹屑粉与丁二酸酐按1:1的质量比混合后加入N,N-二甲基甲酰胺中进行酰化反应,在80℃反应1h,105℃烘干酰化反应后竹屑粉,得到改性竹屑粉;将废旧聚乙烯粒子、安息香丁醚、N,N-亚甲基双丙烯酰胺在混炼机中于160℃进行混炼10min,得到的混合物送入造粒机造粒,粒子用高压汞灯辐照处理,光源功率1000W,辐照间距8cm,辐照时间15s,辐照结束后得到改性废旧聚乙烯粒子;
⑵将改性竹屑粉、碳纤维、改性废旧聚乙烯粒子、硅油、聚乙烯蜡、硬脂酸钙、纳米硅藻土、氧化锌、环氧大豆油、氧化铁红、甘油放入高速搅拌机中混合30min,得到混合粉料;
⑶将混合粉料装入模具中,在平板硫化机上升温至165℃,升压至5MPa,恒温恒压下使混合物料熔结成密实材料后,恒压冷却至室温,模压成型得到塑木复合托盘。
实施例2
一种环保塑木复合托盘,包括以下重量份的原料:改性竹屑粉15-35份、碳纤维8份、废旧聚乙烯粒子95份、安息香丁醚1份、N,N-亚甲基双丙烯酰胺4份、硅油5份、聚乙烯蜡2份、硬脂酸钙1.5份、纳米硅藻土6份、氧化锌2份、环氧大豆油2份、酞菁绿2份、甘油0.8份。
所述环保塑木复合托盘的制备方法,包括以下步骤:
⑴将竹屑粉浸入0.6mol/L的氢氧化钠溶液中,在100℃处理100min,取出竹屑粉后进行烘干,烘干温度110℃,烘干后的竹屑粉与丁二酸酐按1:1的质量比混合后加入N,N-二甲基甲酰胺中进行酰化反应,在100℃反应2h,105-110℃烘干酰化反应后竹屑粉,得到改性竹屑粉;将废旧聚乙烯粒子、安息香丁醚、N,N-亚甲基双丙烯酰胺在混炼机中于165℃进行混炼12min,得到的混合物送入造粒机造粒,粒子用高压汞灯辐照处理,光源功率4000W,辐照间距12cm,辐照时间30s,辐照结束后得到改性废旧聚乙烯粒子;
⑵将改性竹屑粉、碳纤维、改性废旧聚乙烯粒子、硅油、聚乙烯蜡、硬脂酸钙、纳米硅藻土、氧化锌、环氧大豆油、酞菁绿、甘油放入高速搅拌机中混合45min,得到混合粉料;
⑶将混合粉料装入模具中,在平板硫化机上升温至165-180℃,升压至8MPa,恒温恒压下使混合物料熔结成密实材料后,恒压冷却至室温,模压成型得到塑木复合托盘。
实施例3
一种环保塑木复合托盘,包括以下重量份的原料:改性竹屑粉25份、碳纤维6.5份、废旧聚乙烯粒子90份、安息香丁醚0.8份、N,N-亚甲基双丙烯酰胺3.5份、硅油3.5份、聚乙烯蜡1.5份、硬脂酸钙1份、纳米硅藻土5份、氧化锌1.5份、环氧大豆油1.5份、酞菁蓝1.5份、甘油0.5份。
所述环保塑木复合托盘的制备方法,包括以下步骤:
⑴将竹屑粉浸入0.5mol/L的氢氧化钠溶液中,在100℃处理75min,取出竹屑粉后进行烘干,烘干温度110℃,烘干后的竹屑粉与丁二酸酐按1:1的质量比混合后加入N,N-二甲基甲酰胺中进行酰化反应,在90℃反应1.5h,110℃烘干酰化反应后竹屑粉,得到改性竹屑粉;将废旧聚乙烯粒子、安息香丁醚、N,N-亚甲基双丙烯酰胺在混炼机中于165℃进行混炼11min,得到的混合物送入造粒机造粒,粒子用高压汞灯辐照处理,光源功率2500W,辐照间距10cm,辐照时间23s,辐照结束后得到改性废旧聚乙烯粒子;
⑵将改性竹屑粉、碳纤维、改性废旧聚乙烯粒子、硅油、聚乙烯蜡、硬脂酸钙、纳米硅藻土、氧化锌、环氧大豆油、酞菁蓝、甘油放入高速搅拌机中混合35min,得到混合粉料;
⑶将混合粉料装入模具中,在平板硫化机上升温至170℃,升压至6.5MPa,恒温恒压下使混合物料熔结成密实材料后,恒压冷却至室温,模压成型得到塑木复合托盘。

Claims (3)

1.一种环保塑木复合托盘,其特征在于,包括以下重量份的原料:改性竹屑粉15-35份、碳纤维5-8份、废旧聚乙烯粒子85-95份、安息香丁醚0.6-1份、N,N-亚甲基双丙烯酰胺3-4份、硅油2-5份、聚乙烯蜡0.5-2份、硬脂酸钙0.5-1.5份、纳米硅藻土4-6份、氧化锌1-2份、环氧大豆油1-2份、色母料1-2份、甘油0.2-0.8份。
2.根据权利要求1所述环保塑木复合托盘,其特征在于,包括以下重量份的原料:改性竹屑粉25份、碳纤维6.5份、废旧聚乙烯粒子90份、安息香丁醚0.8份、N,N-亚甲基双丙烯酰胺3.5份、硅油3.5份、聚乙烯蜡1.5份、硬脂酸钙1份、纳米硅藻土5份、氧化锌1.5份、环氧大豆油1.5份、色母料1.5份、甘油0.5份。
3.根据权利要求1所述环保塑木复合托盘的制备方法,其特征在于,包括以下步骤:
⑴将竹屑粉浸入0.4-0.6mol/L的氢氧化钠溶液中,在95-100℃处理45-100min,取出竹屑粉后进行烘干,烘干温度105-110℃,烘干后的竹屑粉与丁二酸酐按1:1的质量比混合后加入N,N-二甲基甲酰胺中进行酰化反应,在80-100℃反应1-2h,105-110℃烘干酰化反应后竹屑粉,得到改性竹屑粉;将废旧聚乙烯粒子、安息香丁醚、N,N-亚甲基双丙烯酰胺在混炼机中于160-165℃进行混炼10-12min,得到的混合物送入造粒机造粒,粒子用高压汞灯辐照处理,光源功率1000-4000W,辐照间距8-12cm,辐照时间15-30s,辐照结束后得到改性废旧聚乙烯粒子;
⑵将改性竹屑粉、碳纤维、改性废旧聚乙烯粒子、硅油、聚乙烯蜡、硬脂酸钙、纳米硅藻土、氧化锌、环氧大豆油、色母料、甘油放入高速搅拌机中混合30-45min,得到混合粉料;
⑶将混合粉料装入模具中,在平板硫化机上升温至165-180℃,升压至5-8MPa,恒温恒压下使混合物料熔结成密实材料后,恒压冷却至室温,模压成型得到塑木复合托盘。
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