Effect of Chloropropanol Content in PAE Wet Strength Agents on Chloropropanol Content in Paper Water Extractions
In order to detect the chloropropanol content in the polyamide-epichlorohydrin(PAE)wet strength agents,this study established gas chromatography-mass spectrometry(GC-MS)method to detect the content of l,3-dichloro-2-propanol(1,3-DCP)and 3-chloro-1,2-pro-panediol(3-MCPD).At the same time,the relationship between chloropropanol content in PAE wet strength agents and in paper water ex-tractions was studied by adding wet strength agents.The content of 1,3-DCP and 3-MCPD decreased significantly with the improvement of the manufacturing process of a certain wet strength agent in 4 batches.The chloropropanol content in water extraction and the tensile strength of the papers were tested by adjusting the dosage of wet strength agent and retention aid.The results showed that the chloropropanol content in paper water extraction was positively correlated with its content in the wet strength agent and was directly proportional to the dosage of wet strength agent.When the actual dosage of retention aid exceeded the recommended dosage of manufacturer,the extracted chloropropanol content showed no significant relationship with the retention aid dosage,but it would cause the wet and dry tensile strength of paper to de-cline.
万方数据
维普
