Comparative study of partial and total replacement of linear alkyl benzene sulphonate by novel polymer on the properties of detergent

摘要

Novel Polymer was first synthesized from Coconut oil, rosin and maleic anhydride and then used with sodium lauryl sulphate as mixed active matter in powder detergent formulation with a view to replace the conventional active matter like Linear Alkyl Benzene Sulphonate (LABS). The reaction conditions of novel polymer such as mole ratio, temperature, time of reaction and use of catalyst have been standardized to get a product with desired HLB ratio, viscosity and solubility. The prepared powder detergents were analyzed for surface tension, detergency and foaming power and compared with commercial detergent sample. All detergent compositions exhibited comparable performance to commercial one with respect to detergency and surface tension whereas foaming power decreased as the amount of novel polymer in the formulation increased. Satisfactory results were found even for low concentration (0.5%) of powder detergents. In successive compositions acid slurry has been replaced by neutralized novel polymer by to 20 to 100%. A comparison of our novel polymer based detergents with commercial samples shows that novel polymer based powder detergent give excellent foaming, surface tension reduction and detergency properties. The raw material cost of our novel detergents in reasonable and they can be tried on pilot scale and commercial scale production. The special feature of these detergents is freedom from conventional linear alkyl benzene sulphonate and sodium tripoly phosphate so they can be labeled as Eco friendly products for green environment. The proposed compositions can be easily prepared in existing novel polymer manufacturing plants applying minor modification.