PREPARATION METHOD FOR PLASTIC-FREE BIOMASS-BASED OIL-PROOF AND ANTIBACTERIAL FOOD PACKAGING PAPER
收藏国家林业和草原科学数据中心2023-02-12 更新2024-03-07 收录
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资源简介：
A preparation method for plastic-free biomass-based oil-proof and antibacterial food packaging paper， comprising: preparation of pulp， preparation of dry paper， sizing， coating， and a drying process. The preparation process of the dry paper comprises for 100 parts of pulp， weighing 0.25-0.75 part of a wet strengthening agent， 0.1-0.3 part of nanocellulose， and 0.3-0.5 part of chitosan， and performing sheet-making together with the pulp; a coating process comprises dissolving chitosan in an acetic acid aqueous solution， and adding the nanocellulose subsequent to being oxidized by an oxidant， and oxidized starch to prepare a coating liquid， wherein 100 parts of the coating liquid comprises 0.3-0.5 part of chitosan， 0.3-0.6 part of oxidized nanocellulose， and 2.5-30 parts of oxidized starch. By means of internal sizing and surface sizing， the nanocellulose is introduced， and chitosan and the nanocellulose are compounded; compared with an existing cationic starch surface sizing technique， the present invention combines the antigrease property and the antibacterial property of chitosan， and the mechanical property and the barrier property of the nanocellulose.
提供机构：
国家林业和草原科学数据中心
创建时间：
2023-02-12
