霍少杰,朱礼智,李光,贺颖奇,孙彬青.木粉/PHBV复合缓冲材料的制备及性能表征[J].包装工程,2022,43(13):42-52.
HUO Shao-jie,ZHU Li-zhi,LI Guang,HE Ying-qi,SUN Bin-qing.Preparation and Characterization of Poplar Powder/PHBVComposite Cushion Material[J].Packaging Engineering,2022,43(13):42-52. |
| 木粉/PHBV复合缓冲材料的制备及性能表征 |
| Preparation and Characterization of Poplar Powder/PHBVComposite Cushion Material |
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| DOI：10.19554/j.cnki.1001-3563.2022.13.006 |
| 中文关键词: 木粉 缓冲材料 发泡剂 性能 |
| 英文关键词: poplar powder cushion material foaming agent performance |
| 基金项目:天津市教委科研计划(2017KJ032) |
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| 中文摘要: |
| 目的 制备一种缓冲性能优异的木粉/聚β–羟基丁酸戊酸酯(PHBV)复合缓冲材料，作为缓冲包装材料用于运输包装领域。方法 选用马来酸酐接枝聚丙烯(MAPP)作为偶联剂，选用碳酸氢钠(NaHCO3)和偶氮二甲酰胺(AC)作为发泡剂，采用共混热压工艺制备毛白杨木粉和聚(β–羟基丁酸戊酸酯)(PHBV)复合材料，进行力学性能和缓冲性能测试，并通过扫描电子显微镜(SEM)、傅里叶红外光谱(FT–IR)、差示扫描量热法(DSC)等进行性能表征，分析讨论不同木塑比、发泡剂种类和添加量对木塑复合缓冲材料微观界面、缓冲性能的影响。结果 研究结果表明，当木粉与PHBV质量比为6∶4时木塑复合材料的缓冲性能、吸收能量和热性能最佳，NaHCO3发泡剂和AC发泡剂质量分别为2.0 g和1.5 g时，泡孔多且均匀，与木纤维交织连接形成稳定连续的泡孔结构，受压时不会出现应力集中点，吸收能量分别提高了34.6%和33.8%，加入适量发泡剂熔融焓分别提升了43.74%和41.83%，其中加入AC发泡剂材料的结晶率明显提高。结论 当木粉与PHBV质量比为6:4，NaHCO3发泡剂和AC发泡剂质量分别为2.0 g和1.5 g时，制备得到的木粉/PHBV复合材料具有优异的缓冲性能，在运输包装领域具有潜在的应用前景。 |
| 英文摘要: |
| The work aims to prepare a high-performance poplar powder/poly (β-hydroxybutyrate valerate) (PHBV) composite cushion material that can be used in transport packaging field as the cushion packaging material. With maleic anhydride grafted polypropylene (MAPP) as the coupling agent and NaHCO3 and AC as the foaming agent, blending hot pressing process was adopted to prepare the poplar powder/PHBV composite material. Then, mechanical properties and cushioning performance were tested and performance characterization was carried out by scanning electron microscope (SEM), Fourier infrared spectroscopy (FT-IR) and differential scanning calorimetry (DSC) to analyze the effects of different wood-plastic ratios, types and amount of foaming agent on the micro-interface and cushioning performance of poplar/PHBV composite material. According to the results, the cushioning performance, energy absorption and thermal performance of composite material were the best when the wood/plastic ratio was 6:4. When NaHCO3 and AC were added in 2.0 g and 1.5 g respectively, the cells were numerous and uniform, and were interwoven and connected with wood fibers to form a stable and continuous cell structure. There were no stress concentration points under compression, and energy absorption increased by 34.6% and 33.8% respectively. The enthalpy of fusion was increased by 43.74 % and 41.83 % when an appropriate amount of foaming agent was added, and the crystallization rate with AC foaming materials was significantly increased. When the mass ratio of poplar powder to PHBV is 6 :4, and the mass of NaHCO3 foaming agent and AC foaming agent is 2.0 g and 1.5 g, respectively, the prepared poplar powder/PHBV composite material has excellent cushioning performance and has potential application prospects in the field of transport packaging. |
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