Grassland degradation , desertification , basification pose great threat on ecological balance . slow development of grassland husbandry cause imbalance in our agricultural structure 草地退化、沙化、盐碱化对生态平衡造成严重威胁,草地畜牧业滞后使农业结构失衡。
2.
Using refined cotton , chloroacetic acid , sodium hydroxide and hydrogen peroxide as main feedstock , sodium carboxymethyl cellulose was made by the process of basification , etherification , abstersion and drying 摘要以精制棉、氯乙酸、氢氧化钠和过氧化氢为原料,经过碱化、醚化、洗涤、干燥,制得羧甲基纤维素钠。
3.
For decorating , cement and terrazzo floor , walls and walls and ceilings of workshops for producing beverage , food stuffs cosmetics , electronics , medines , electrical appliances , etc . and places which need to be free from basification and dust 适用于电器、电子、机械、食品、医药、化工、烟草、饲料、纺织、服装、家具、塑料、文体用品等制造工厂的车间水泥或水磨石地面。
4.
For decorating , cement and terrazzo floor , walls and walls and ceilings of workshops for producing beverage , food stuffs cosmetics , electronics , medicines , electrical appliances , etc . and places which need to be free from basification and dust 适用于电器、电子、机械、食品、医药、化工、烟草、饲料、纺织、服装、家具、塑料、文化用品等制造工厂的车间水泥或水磨石地面。
5.
Meanwhile adopting two - step process of viscosity - decreasing method , i . e . adding hydrogen peroxide during the process of basification and abstersion to decrease the viscosity of alkaline cellulose , as a result the sodium carboxymethyl cellulose with ultra low viscosity was obtained 同时,采用二步降粘法,在碱化及洗涤过程中加入过氧化氢,以降低纤维素钠的粘度,制得超低粘度的梭甲基纤维素钠。