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研究了利用纤维素原料制作纤维素海绵的方法。用一定浓度的氢氧化钠溶液浸泡木浆板,晾干后,用水浸泡一段时间,然后溶于NaOH/硫脲溶液中。在纤维素溶液中加入一定量的成孔剂成型,经过老化,再生等一系列工序后,即可制得纤维素海绵。讨论了纤维素浓度和成孔剂用量对纤维素海绵物理性能的影响,并用光学显微镜对产物结构进行观察。实验结果表明:NaOH溶液的质量浓度为10%～15%,成孔剂用量为26g/50g纤维素溶液,纤维素质量浓度为5%～5.5%,老化时间为2d时,此时产品的综合性能较高。
A method of making a cellulose sponge using a cellulose raw material was studied. With a certain concentration of sodium hydroxide solution soak pulp board, dry, soaked in water for a period of time, and then dissolved in NaOH / thiourea solution. In the cellulose solution by adding a certain amount of pore forming agent, after aging, regeneration and a series of processes, you can get a cellulose sponge. The effects of cellulose concentration and the amount of pore-forming agent on the physical properties of cellulose sponge were discussed. The structure of the product was observed with optical microscope. The experimental results show that the mass concentration of NaOH solution is 10% ~ 15%, the amount of pore-forming agent is 26g / 50g cellulose solution, the concentration of cellulose is 5% ~ 5.5% and the aging time is 2d. High performance.