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本发明涉及一种维生素B6工业生产过程中产生的黑色膏状物(以下简称黑膏)被用作阻燃剂以制备一种聚丙烯阻燃母料。原料组成如下:黑膏100~200 phr、三聚氰胺50 phr以及羧酸或酸酐5~20 phr混合均匀后,搅拌升温反应一段时间,待冷却后将其碾磨至粉状。本发明的优点:对维生素B6废渣的资源再利用,同时对黑膏进行改性制备阻燃剂,形成了新的阻燃剂配方在聚丙
The present invention relates to a black paste (hereinafter referred to as black paste) produced during the industrial production of vitamin B6 which is used as a flame retardant to prepare a polypropylene flame-retardant masterbatch. Raw materials are as follows: black paste 100 ~ 200 phr, melamine 50 phr and carboxylic acid or anhydride 5 ~ 20 phr After mixing, heating reaction for a period of stirring, to be cooled to powder after grinding. The invention has the advantages of reusing the resources of vitamin B6 waste residue, modifying the black paste to prepare the flame retardant, and forming the new flame retardant formula in the polypropylene