麻类纺织产品生命周期环境表现评价研究综述

A review on the evaluation of life cycle environmental performance of hemp textile products

量化与评价麻类纺织产品生命周期的环境表现可为麻类纺织产品的绿色设计、绿色生产以及绿色消费提供参考。综述了纤维大麻、苎麻、亚麻等3种主要麻类纺织产品生命周期环境表现的研究进展,重点对麻类作物在种植过程中的固碳效应、释氧效应以及重金属迁移效应进行了分析讨论。结果表明,麻类纺织产品环境表现量化与评价主要集中在全球变暖潜势、水体富营养化、水体酸化3类指标上,主要针对大麻、亚麻、苎麻在纤维、纱线以及织物阶段的环境表现进行量化与评价;麻类纺织产品在纤维原材料获取的种植阶段具有碳中和效应和释氧效应,可依据光合速率法、生物量法或光合作用反应式量化与评价固碳量和释氧量;针对麻类作物不同产品流向来量化与评价重金属迁移效应的正外部性。以期客观、完整、准确地评估麻类纺织产品生命周期内的环境影响。

Quantifying and evaluating the environmental performance of the life cycle of hemp textile products can provide a reference for the green design,green production and green consumption of hemp textile products.The research progress of the life cycle environmental performance of three main hemp textile products including hemp,ramie and flax was reviewed,and the carbon sequestration effect,oxygen release effect and heavy metal migration effect of hemp crops during planting were analyzed and discussed.The results show that the quantification and evaluation of the environmental performance of hemp textile products mainly focus on three indicators:global warming potential,water eutrophication and water acidification,mainly for the environmental performance of hemp,flax and ramie in the fiber,yarn and fabric stages.Hemp textile products have carbon neutralization effect and oxygen release effect in the planting stage of fiber raw material acquisition,and carbon sequestration and oxygen release can be quantified and evaluated according to photosynthetic rate method,biomass method or photosynthesis reaction formula.Quantifying and evaluating the positive externalities of heavy metal migration effects for different product flow directions of hemp crops.It is expected to objectively,completely and accurately assess the environmental impact in the life cycle of hemp textile products.