Calcium lignosulphonate is a natural polymer planet rich in resources, but also a very important renewable resources as the world resource crisis worsening ecological environment and increasing demand, lignin and its derivatives Due rich source of raw materials, cheap, non-toxic, and easy to diversify the molecular structure of chemical modification and other characteristics, the research and application
of increasingly widespread attention at home and abroad. describes the use of the main byproduct of the paper industry to take calcium lignosulphonate system surfactants and lignin sulfonate several effective chemical modification methods and product applications formate pathway gives an example of using lignin modified CWS additives. Overview of various grafting methods lignin sulfonate, lignin sulfonate graft product discussed in soil conditioners, water thickening, oil drilling, adhesives, etc., and of lignin sulfonate salt grafted and application prospected. In nature, calcium lignosulphonate is a natural polymer is an abundant and important after the cellulose organic macromolecular substances. It exist in plants and cellulose, the cellulose from the adhesive action, together constitute the cell wall.
The molecular structure of the polymer main phenylpropane units, which are mainly benzene propane guaiacyl propane, lilac propane and propane for by benzene investigated various factors on calcium lignosulphonate and acrylamide graft copolymer affect the reaction, and the structure of the product by infrared spectroscopy; addition, the product properties, such as thermal stability, salt, anti-calcium capabilities were tested. The optimum conditions for graft copolymerization: m (calcium lignosulfonate): m (acrylamide) = 1:5, initiator concentration of 4.2 × 10-3mol.L-1, the reaction temperature is 50 ℃, reaction time 2h. IR spectrum of the graft copolymer indicated that the graft reaction between the calcium lignosulphonate and acrylamide. The graft copolymer has a thermal stability, salt, anti-calcium better ability. Lignin is a plant reserves second only to cellulose polymer, is a cheap, abundant, environmentally friendly renewable natural resources [1]. Currently the main component of black liquor is lignin, but because of some inherent characteristics of its own, such as the molecular structure of heterogeneity, a very low solubility in water, such as limiting its further application. In sulfite waste paper as raw materials,
condensation of the reaction, a lignin sulfonate synthesized graft copolymer of vinyl monomers by graft both by IR analysis of its graft.
On this basis, through a series of modified metal ion complexation reactions and reaction sulfonation reaction of the graft copolymer modified synthesized oilfield drilling fluid MGBM - 1. The results showed that, MGBM - 1 with viscosity, fluid loss of double effect, reducing water loss effects and good thermal stability, high calcium lignosulphonate salt pollution and other advantages, the performance is better than iron-chromium lignosulfonate. Sulfonated lignin products of lignin containing a methoxy group, a hydroxyl group (including phenol and hydroxyl), a double bond, a sulfonic acid group and an ether bond on a variety of functional groups in its molecule, Calcium lignosulfonate grafted Its Application, can under certain conditions with a variety of substances to various modification reactions (mainly oxidizing agent, metal ions, sulfonated sulfonating agent, formaldehyde condensates, or grafting) [1].
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of increasingly widespread attention at home and abroad. describes the use of the main byproduct of the paper industry to take calcium lignosulphonate system surfactants and lignin sulfonate several effective chemical modification methods and product applications formate pathway gives an example of using lignin modified CWS additives. Overview of various grafting methods lignin sulfonate, lignin sulfonate graft product discussed in soil conditioners, water thickening, oil drilling, adhesives, etc., and of lignin sulfonate salt grafted and application prospected. In nature, calcium lignosulphonate is a natural polymer is an abundant and important after the cellulose organic macromolecular substances. It exist in plants and cellulose, the cellulose from the adhesive action, together constitute the cell wall.
The molecular structure of the polymer main phenylpropane units, which are mainly benzene propane guaiacyl propane, lilac propane and propane for by benzene investigated various factors on calcium lignosulphonate and acrylamide graft copolymer affect the reaction, and the structure of the product by infrared spectroscopy; addition, the product properties, such as thermal stability, salt, anti-calcium capabilities were tested. The optimum conditions for graft copolymerization: m (calcium lignosulfonate): m (acrylamide) = 1:5, initiator concentration of 4.2 × 10-3mol.L-1, the reaction temperature is 50 ℃, reaction time 2h. IR spectrum of the graft copolymer indicated that the graft reaction between the calcium lignosulphonate and acrylamide. The graft copolymer has a thermal stability, salt, anti-calcium better ability. Lignin is a plant reserves second only to cellulose polymer, is a cheap, abundant, environmentally friendly renewable natural resources [1]. Currently the main component of black liquor is lignin, but because of some inherent characteristics of its own, such as the molecular structure of heterogeneity, a very low solubility in water, such as limiting its further application. In sulfite waste paper as raw materials,
condensation of the reaction, a lignin sulfonate synthesized graft copolymer of vinyl monomers by graft both by IR analysis of its graft.
On this basis, through a series of modified metal ion complexation reactions and reaction sulfonation reaction of the graft copolymer modified synthesized oilfield drilling fluid MGBM - 1. The results showed that, MGBM - 1 with viscosity, fluid loss of double effect, reducing water loss effects and good thermal stability, high calcium lignosulphonate salt pollution and other advantages, the performance is better than iron-chromium lignosulfonate. Sulfonated lignin products of lignin containing a methoxy group, a hydroxyl group (including phenol and hydroxyl), a double bond, a sulfonic acid group and an ether bond on a variety of functional groups in its molecule, Calcium lignosulfonate grafted Its Application, can under certain conditions with a variety of substances to various modification reactions (mainly oxidizing agent, metal ions, sulfonated sulfonating agent, formaldehyde condensates, or grafting) [1].
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