| TPU/MABS合金的耐乙醇和耐碘伏性能研究 |
| Study on Ethanol and Iodophor Resistance Properties of TPU/MABS Alloys |
| 投稿时间：2022-10-10 修订日期：2022-10-14 |
| DOI：10.12136/j.issn.1000-890X.2024.07.0500 |
| 中文关键词: 聚氨酯 甲基丙烯酸甲酯-丙烯腈-丁二烯-苯乙烯共聚物 耐乙醇性能 耐碘伏性能 |
| 英文关键词: TPU methyl methacrylate-acrylonitrile-butadiene-styrene copolymer ethanol resistance property Iodophor resistance property |
| 基金项目:国家重点基础研究发展计划（973计划） |
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| 中文摘要: |
| 制备不同共混比的聚醚型和聚酯型（TPU）/甲基丙烯酸甲酯-丙烯腈-丁二烯-苯乙烯共聚物（MABS）合金，对TPU/MABS合金的耐乙醇和耐碘伏性能进行研究。结果表明：经乙醇和碘伏浸泡24 h的MABS在垂直于应力方向出现大量的裂纹甚至断裂；随着TPU用量的增大，经乙醇和碘伏浸泡24 h的TPU/MABS合金的应力开裂裂纹逐渐减少甚至消失，未经浸泡以及经乙醇和碘伏浸泡24 h的TPU/MABS合金的拉伸强度减小，乙醇浸泡24 h的TPU/MABS合金的冲击强度先增大后减小；当TPU用量分别为30和20份时，乙醇和碘伏浸泡的聚醚型TPU/MABS合金的冲击强度最大。综合来看，经乙醇与碘伏浸泡的聚醚型TPU/MABS合金的抗应力开裂性能比聚酯型TPU/MABS合金很好，抗冲击强度更大。 |
| 英文摘要: |
| Polyether type and polyester type polyurethane（TPU）/methyl methacrylate-acrylonitrile-butadiene-styrene copolymer（MABS） alloys were prepared with different TPU/MABS blending ratios，and their ethanol and Iodophor resistance properties were studied.The results showed that after soaking in ethanol and Iodophor for 24 h，MABS exhibited a large number of cracks or even fractures perpendicular to the stress direction.With the increase of TPU amount，the cracks of TPU/MABS alloys soaked in ethanol and Iodophor for 24 h decreased or even disappeared.The tensile strengths of TPU/MABS alloys unsoaked and ethanol and Iodophor soaked for 24 h decreased.The impact strength of TPU/MABS alloy soaked in ethanol for 24 h first increased and then decreased.When the TPU amount was 30 and 20 phr respectively，polyether type TPU/MABS alloys soaked in ethanol and Iodophor had the highest impact strength respectively.Overall，stress cracking resistance property of polyether type TPU/MABS alloy was better than that of polyester type TPU/MABS alloy，and the impact strength was lager. |
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