동물 사료를 퇴비화한 퇴비를 이용하여 플라스틱의 생분해도를 KS M 3100-1(2002)의 규격에 의거하여 측정하였을 때 평가 결과의 재현성을 반복 실험을 통하여 조사하였다. 퇴비로부터의 이산화탄소 발생은 실험을 3회 반복하더라도 상호 유사한 거동을 나타내었다. Polycaprolactone(PCL)과 poly(butylene succinate-co-butylene adipate)(PBSA)에 대한 생분해도 측정을 동물 사료 퇴비를 이용하여 행한 결과 제조 날짜가 다른 퇴비를 사용하였을 때 생분해 10-35일 사이에는 생분해도가 약간 다르게 나타났으나 최종 생분해도는 상효 유사하여 퇴비를 이용한 플라스틱의 생분해도는 훌륭한 재현성을 보였다.

Biodegradability of plastics was evaluated according to KS M3100-1(2002) and reproducibility of the evaluation results was examined using a compost made from an animal fodder composting. Amount of CO₂ produced from the compost exhibited almost the same trend in the three times of the repeated experiments. Biodegradability of polycaprolactone(PCL) and poly(butylene succinate-co-butylene adipate)(PBSA) was carried out by using the compost and it appeared slightly different during 10-35 days after the onset of the biodegradation test depending on the compost production date. However the final biodegradability was almost identical in the repeated experiments indicating that the biodegradation test can be realized in the compost with an excellent reproducibility.

Compost Plastic Materials Biodegradability Reproducibility

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