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Nano-fibrillated cellulose, a nano-level cellulose. It is a nano-scale cellulose extracted from natural cellulose. Nanocrystalline particles have the characteristics of nanocellulose. And nanocellulose also has unique strength and optical properties, so its application is very broad. Nano-fiber cellulose or green nano-material. NFC can be used in nano-composites and papermaking. At present, NFC has been used as reinforcement filler in nanocomposites. The mechanical properties, thermal stability and barrier properties of the composites prepared in this way have been improved compared with the raw materials. However, in papermaking, due to the negative charge on the surface of NFC, the cellulose and filler have good dispersion when added to the paper material. Moreover, there are a large number of free hydroxyl groups on the surface of NFC, which can combine into a lot of hydrogen bonds. Thus, the strength of the paper is improved. In this experiment, it was found that there was NFC in 50% sulfuric acid hydrolysate product at 45 degrees Celsius from bleached coniferous wood Kraft pulp board and hydrolyzed with sulfuric acid. The morphology was observed by Regulus8220 scanning electron microscope. Through the experiment, the optimum ratio of acrylic resin and NFC is 8 / 2, so the performance of paper is better. Finally, the different amount of surfactant is explored, and the influence of NFC on the effect of paper is explored. When the amount of NFC is 2, the enhancement effect of the paper is the best, and when the amount of surfactant is more than 2% of NFC, the enhancement effect of the paper becomes worse.
Nanofibrillated cellulose is a nano-grade cellulose. It is a nano-cellulose extracted from natural cellulose. The characteristics of the nanoparticles are owned by nanocellulose. Moreover, nanocellulose also has unique strength and optical properties, so its application prospects are very broad.
Nanofibrillated cellulose is also a green nanomaterial. NFC can be well applied in nanocomposites and papermaking. At present, in nano-composite materials, NFC has been used as a reinforcing filler. The mechanical properties, thermal stability, and barrier properties of the composite materials used in the preparation are higher than those of raw materials. In papermaking, since the NFC surface has a negative charge, the addition of the paper stock will result in good dispersion of the cellulose and the filler. Moreover, there are a large number of free hydroxyl groups on the NFC surface, which can be combined into many Hydrogen bonds increase the strength of the paper. This experiment explored the use of bleached softwood Kraft pulp boards that were hydrolyzed with sulfuric acid and found that NFC was present in the 50% strength sulfuric acid hydrolysate at 45 degrees Celsius for 4 hours. And the specific morphology was observed by scanning electron micrograph of Regulus8220. Through experiments, the optimal ratio of acrylic resin and NFC is 8/2, and the performance of enhanced paper is better. Finally, different amounts of surfactants were also investigated to explore the effect of NFC on the effect of paper. Through experiments, When the surfactant is 2% in the NFC content, the reinforcing effect of the paper is the best. When the amount of the surfactant added exceeds 2% of the NFC content, the reinforcing effect on the paper becomes worse.
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