
Effects of Chestnut Shell Pigment Addition on Performance of Cellulose-Based Liquid Mulching Film
SUN Zuo-ling, YAO Xian-fu, HE Zhao-yun, ZHOU Zhi-chao, YAO Zeng-yu
Effects of Chestnut Shell Pigment Addition on Performance of Cellulose-Based Liquid Mulching Film
Photoaging affects the performance and service life of degradable liquid plastic film. Melanin is a highly effective photoprotectant left by biological evolution. In this paper, melanin was used in liquid mulch film, and the effect of chestnut shell pigment on the performance of carboxymethyl cellulose liquid mulch film was discussed. The results showed that the addition of chestnut shell pigment significantly improved the tensile strength of the plastic film, reduced the elongation at break, made the film loose, increased the pores, and increased the water vapor permeability. The addition of chestnut shell pigment also significantly improved the antioxidant capacity and ultraviolet aging resistance of plastic film. When the mass ratio of chestnut shell pigment to carboxymethyl cellulose was 5:3, the liquid mulch film could effectively slow down the evaporation of soil water and had good soil water retention performance. Chestnut shell pigment can be used as a cheap and environmentally friendly degradable liquid mulch film photoprotectant.
Chestnut shell pigment / Carboxymethyl cellulose / Liquid mulching film / Anti-aging / Ultraviolet protectant
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