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首页> 外文期刊>Journal of Polymers and the Environment >Biodegradability of Epoxidized Soybean Oil Based Thermosets in Compost Soil Environment
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Biodegradability of Epoxidized Soybean Oil Based Thermosets in Compost Soil Environment

机译：堆肥土壤环境中环氧化大豆油基热固性材料的生物降解性

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摘要

In this study, bio-thermoset from epoxidized soybean oil (ESO) was prepared in the presence of meth-ylhexahydrophthalic anhydride curing agent and 2-ethyl-4-methylimidazole catalyst. The crosslink densities of the synthesized ESO are ranged from 0.109 × 10~(-3) to 0.308 × 10~(-3) mol/cm~3. The ESO bio-thermosets were exposed to the soil-burial test for 8 months. Weight change and morphology of the degraded ESO specimens were assessed. It was found that the weight loss of ESO was governed by the materials compositions, crosslink density and the soil-burial exposure time. The 3 mm thickness ESO bio-thermosets with crosslink density of 0.109 × 10~(-3) mol/cm~3 had fully biodegraded after soil-burial for 6 months. In addition, 16S rDNA sequencing was carried out to identify the soil microorganisms. It was suggested that Comamonas sp., Bacillus sp., Streptomyces sp. and Acineto-bacter sp. are the possible soil microbes that degrade the ESO bio-thermosets in the compost soil environment.
机译：在这项研究中，在甲基-乙基六氢邻苯二甲酸酐固化剂和2-乙基-4-甲基咪唑催化剂的存在下，由环氧化大豆油（ESO）制备了生物热固性树脂。合成的ESO的交联密度为0.109×10〜（-3）至0.308×10〜（-3）mol / cm〜3。将ESO生物热土暴露于土壤掩埋试验8个月。评估了降解的ESO标本的重量变化和形态。发现ESO的重量损失由材料组成，交联密度和土壤-埋葬时间控制。 3 mm厚的ESO生物热固性土的交联密度为0.109×10〜（-3）mol / cm〜3，在土葬6个月后已完全生物降解。另外，进行了16S rDNA测序以鉴定土壤微生物。有人建议Comamonas sp。，芽孢杆菌属sp。，链霉菌sp.。和不动杆菌属。是在堆肥土壤环境中降解ESO生物热菌的可能的土壤微生物。

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  • 来源
    《Journal of Polymers and the Environment》 |2014年第1期|140-147|共8页
  • 作者

    W. S. Chow; S. G. Tan; Z. Ahmad; K. H. Chia; N. S. Lau; K. Sudesh;

  • 作者单位

    School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, Engineering Campus, 14300 Nibong Tebal, Pulau Pinang, Malaysia;

    School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, Engineering Campus, 14300 Nibong Tebal, Pulau Pinang, Malaysia;

    School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, Engineering Campus, 14300 Nibong Tebal, Pulau Pinang, Malaysia;

    Ecobiomaterial Research Laboratory, School of Biological Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia;

    Ecobiomaterial Research Laboratory, School of Biological Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia;

    Ecobiomaterial Research Laboratory, School of Biological Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Bio-thermosets; Biodegradation; Soybean oil; Soil microbes;

    机译：生物热电堆;生物降解;豆油;土壤微生物;

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