Biodegradable coating material and preparation method thereof

• Main Authors: LIN KEXIN, WANG LEI, CHEN DONGNI, GUO BINGZHI, YAN LIXIN, JIAO QINGZE
• Format: Patent
• Language: Chinese; English
• Published: 26.07.2019
• Subjects: IMPREGNATING OR COATING OF PAPER; PAPER NOT OTHERWISE PROVIDED FOR; PAPER-MAKING; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; PRODUCTION OF CELLULOSE; PULP COMPOSITIONS; TEXTILES; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G

The invention provides a biodegradable coating material and a preparation method thereof. The biodegradable coating material comprises, in weight, 1%-2.25% of anionic cellulose ether, 0.5-2% of non-ionic cellulose ether, 1%-2.25% of chitosan and 93.5%-96% of pH (potential of hydrogen) value regulators and water. The preparation of the method of the biodegradable coating material is simple in process, easy to operate and low in production cost, the coating material is simply sprayed or sprayed in a rolled manner to obtain a biodegradable packaging film, industrial production is easily implemented, the material has excellent economic benefits, so that a petroleum derived compound applied on a current packaging material is replaced, and environmental pressure of the earth is relieved. 本发明提供一种可生物降解涂层材料及其制备方法，所述可生物降解涂层材料由以下组份混合而成：阴离子型纤维素醚、非离子纤维素醚、壳聚糖、pH值调节剂和水，其中各组份的重量百分比为：阴离子型纤维素醚1％～2.25％，非离子纤维素醚0.5％～2％，壳聚糖1％～2.25％，pH值调节剂和水共93.5％～96％。本发明的生物可降解涂层材料的制备方法工艺十分简单，易于操制，生产成本低廉，将该涂层材料经简单的喷涂或滚涂之后，就可以得到可生物降解包装薄膜，易于工业化生产并具有很