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首页> 外文期刊>Journal of Applied Polymer Science >Polyblend CPP and Bionolle with PP-g-MAH as compatibilizer. II. Biodegradability
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Polyblend CPP and Bionolle with PP-g-MAH as compatibilizer. II. Biodegradability

机译：聚丙烯共混物CPP和Bionolle与PP-g-MAH作为相容剂。二。生物降解性

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摘要

The biodegradability of Bionolle and a CPP/Bionolle blend in two biotic environments, that is, soil and a lipase-enzyme solution, were evaluated using the mechanical properties and weight-loss data. It was noted that upon soil burial the tensile strength and elongation at break of polyblends were significantly reduced, particularly after 3 months. The time of complete loss of strength as predicted from the curve-fit model was found sequentially to be 6.80, 5.03, 4.84, 11.49, and 140.25 months for Bionolle, compatibilized Bionolle, and CPP/Bionolle (25/75), (50/50), and (75/25), respectively. Meanwhile, the weight loss of polyblends during soil burial were observed to generally increase with increasing Bionolle content. Even a synergistic effect on the weight loss was shown by compatibilized Bionolle and CPP/Bionolle (25/75). Additionally, the time for complete weight loss as estimated from the curve-fit model was 12.57, 7.83, 7.01, and 13.90 months for Bionolle, compatibilized Bionolle, and CPP/Bionolle (25/75) and (50/50), respectively. From the enzymatic degradation, it was recognized that in the early stage of biodegradation both the amorphous phase and the crystalline parts were randomly attacked. It was found that the weight loss that resulted from enzymatic degradation was satisfactorily described by a generalized kinetic curve derived from a first-order reaction.
机译：使用机械性能和减肥数据评估了Bionolle和CPP / Bionolle共混物在两种生物环境（即土壤和脂肪酶-酶溶液）中的生物降解能力。注意到在土壤埋葬时，多掺混物的抗张强度和断裂伸长率显着降低，特别是在3个月后。根据曲线拟合模型的预测，发现Bionolle，相容的Bionolle和CPP / Bionolle（25/75）的强度完全丧失的时间依次为6.80、5.03、4.84、11.49和140.25个月，（50 / 50）和（75/25）。同时，观察到在土壤掩埋过程中多掺混物的重量损失通常随着Bionolle含量的增加而增加。相容的Bionolle和CPP / Bionolle（25/75）甚至显示出对减肥的协同作用。另外，根据曲线拟合模型估计的完全减肥时间，Bionolle，相容的Bionolle和CPP / Bionolle（25/75）和（50/50）分别为12.57、7.83、7.01和13.90个月。从酶促降解中，认识到在生物降解的早期，无定形相和结晶部分均被随机攻击。已经发现，由酶促降解引起的重量损失通过源自一级反应的通用动力学曲线令人满意地描述。

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