[1]ZHAO Wenling.Analysis of Degradation Characteristic and Its Effect Factors of New Biodegradable PLA Sand Barrier[J].Research of Soil and Water Conservation,2015,22(06):198-202.
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Analysis of Degradation Characteristic and Its Effect Factors of New Biodegradable PLA Sand Barrier
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
22
Number of periods:
2015 06
Page number:
198-202
Column:
Public date:
2015-12-28
- Title:
- Analysis of Degradation Characteristic and Its Effect Factors of New Biodegradable PLA Sand Barrier
- Keywords:
- biodegradable sand barrier; poly lactic acid fiber; effect factors; degradable characteristic
- CLC:
- S775
- DOI:
- -
- Abstract:
- To delay the use time of new biodegradable poly lactic acid fiber in desertification control process, we investigated and determined the PLA sand barrier materials laied on the bare sand dune for 5 years and combined the laboratory experiments of single-factor controlling temperature and soil moisture to analyze degradation characteristic and its effect factors of PLA sand barrier. The results showed that high temperature and high humdity could accelerate degradation process of PLA sand barrier materials. Mechanical performance loss of PLA fiber was the largest in mesoslope of upwind and windward side. The mechanical permormance loss of sand barrier materials exposing to air was larger 12.29% than that of sand barrier materials facing the ground. The high temperature occurred after rain in summer and fluent and intensive blown-sand activities were the main factors leading to PLA sand barrier material degradation.
- References:
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