MB S resin (Methylmetharylate-Butadiene-Sty-rene) is the graft copolymer of TEB 3K (M), divinyl (B) and vinylbenzene (S), has special nucleocapsid structure.Be mainly used in modified PVC resin (PVC).PVC after the modification not only can improve its erosion-resisting characteristics, and can keep the original transparency of PVC.The MBS resin is that modified PVC is produced best materials transparent or colorful film sheet material, tubing and granulation bottle blowing, and therefore, said MBS resin is widely used in pvc pipe material, sheet material, sheet material, various goods such as torsion film and clear vial.In addition, the MBS resin also can be used for PS and the ABS resin of retrofiting, so the MBS resin is with a wide range of applications as the impact modifying agent of polyvinyl chloride resin.
In the production process of existing MBS resin; Be that divinyl and vinylbenzene are carried out emulsification as monomer in water and emulsifying agent; Under the initiation of initiator, carry out polymerization, produce styrene-butadiene latex (SBR latex), add TEB 3K and vinylbenzene again and carry out emulsion grafting polymerization after composite with 7: 3 ratio; Obtain MBS resin graft latex (MBS resin latex); Through obtaining the MBS powder after cohesion, dehydration and the drying treatment, right at last, the MBS resin of producing in the existing technology with the adjustment of PVC consistency and refractive index on also exist not enough; Moreover what in existing processes, have does not add stablizer, and improving aspect the coloured light of PVC, there is open defect in the employing single stable agent that has.
So, how a kind of working method of MBS resin is provided, be used to improve PVC sheet material coloured light, to avoid above-described various shortcoming, become present problem demanding prompt solution for the dealer of association area.
Post time: Aug-17-2022