Heat-resistant plant fiber PLA compound capable of being easily operated and processed at low temperature to maintain fiber primary color and preparation method thereof

The invention discloses a heat-resistant plant fiber PLA compound capable of being simply operated and processed at low temperature to maintain the fiber primary color and a preparation method thereof. The heat-resistant plant fiber PLA compound is prepared from 61.2-73.6 parts by weight of PLA, 7 to 10 parts by weight of PBS; 2-3 parts by weight of a plasticizer, 16-24 parts by weight of plant fibers, 5.6-8.4 parts by weight of a coupling agent-ethanol solution, 0.3 part by weight of an antioxidant and 0.3 part by weight of a lubricant, and the coupling agent-ethanol solution is prepared by compounding a coupling agent and an ethanol solution according to a mass ratio of 1: 6, uniformly stirring and sealing at normal temperature for 1 hour. The heat-resistant plant fiber PLA compound hasthe effect of keeping the primary color of the fiber through low-temperature processing. 本发明公开了一种可简易操作低温加工保持纤维原色的耐热植物纤维PLA复合物及其制备方法。其由61.2-73.6重量份PLA，7-10重量份PBS，2-3重量份增塑剂，16-24重量份植物纤维，5.6-8.4重量份偶联剂-乙醇溶液，0.3重量份抗氧剂，0.3重量份润滑剂制备得