王冰,范亚莉,江贵长,刘婧仪.新型抗菌聚氨酯包装膜的制备与表征[J].包装工程,2021,42(17):155-161.
WANG Bing,FAN Ya-li,JIANG Gui-chang,LIU Jing-yi.Preparation and Characterization of New Antibacterial Polyurethane Packaging Film[J].Packaging Engineering,2021,42(17):155-161. |
| 新型抗菌聚氨酯包装膜的制备与表征 |
| Preparation and Characterization of New Antibacterial Polyurethane Packaging Film |
| 投稿时间：2020-12-07 |
| DOI：10.19554/j.cnki.1001-3563.2021.17.020 |
| 中文关键词: 聚氨酯合成 纳米银 抗菌薄膜 |
| 英文关键词: s, 2011, 32(5):24—29. |
| 基金项目:天津市大学生创新创业计划(202110057033) |
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| 中文摘要: |
| 目的 以2，4甲苯二异氰酸酯(TDI)、2，2二羟甲基丁酸(DMBA)和聚己内酯(PCL)为原料，合成一种新型聚氨酯材料，加入不同质量分数的纳米银作为抗菌剂，探究R值(—NCO与—OH的摩尔比)和纳米银添加量对薄膜性能的影响。方法 将不同R值的材料合成聚氨酯，添加不同质量分数的纳米银抗菌剂流延成膜，分析不同R值和不同添加量的纳米银对薄膜力学、透氧、亲/疏水、吸水率、耐酸碱、抗菌性等的影响。结果 R值的增大使薄膜的力学性能先增大后减小，表面性质由亲水转向疏水，透气性、吸水率变小，耐碱性、耐酸性增强。添加少量的纳米银不会对薄膜力学性能、亲/疏水性能、透氧性、吸水率造成明显影响，但使薄膜的耐碱性增强，耐酸性降低。结论 R值越大，薄膜的各项性能越好，纳米银的添加赋予了薄膜一定的抗菌性。 |
| 英文摘要: |
| A new type of polyurethane material was synthesized from 2,4 toluene diisocyanate (TDI), 2,2 dihydroxymethyl butyric acid (DMBA) and polycaprolactone (PCL). Different mass fractions of nano silver were added as antibacterial agent. The effects of R value (molar ratio of —NCO/—OH) and the amount of nano silver on the properties of the film were investigated. Polyurethane films were prepared from materials with different R values and nano-silver antibacterial agents. The effects of different R values and nanosilver dosage on the mechanical properties, oxygen permeability, hydrophilic/hydrophobic, water absorption, acid and alkali resistance and antibacterial properties of the films were analyzed. With the increase of R value, the mechanical properties of the film first increased and then decreased, the surface properties changed from hydrophilic to hydrophobic, the air permeability and water absorption decreased, and the resistance to alkali and acid increased. The addition of a small amount of nano silver has no significant effect on the mechanical properties, hydrophilic/hydrophobic properties, oxygen permeability and water absorption of the film, but increases the resistance to alkaline and decreases the resistance to acid. The higher the R value is, the better the properties of the film. The addition of nano silver gives the film some antibacterial properties. |
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