P. TangboriboonratT. TanunchaiC. TiyapiboonchaiyaMahidol University2018-09-072018-09-071999-12-01Plastics, Rubber and Composites Processing and Applications. Vol.28, No.7 (1999), 357-362095981112-s2.0-0033348443https://repository.li.mahidol.ac.th/handle/20.500.14594/25408Skim natural rubber latex has been characterised before crosslinking with γ-radiation. Micrographs of γ-vulcanised skim particles embedded in polystyrene revealed a semi-interpenetrating polymer network morphology of fine rubber-polystyrene particles surrounded by membrane layer. Creamed skim latex was prepared by addition of 15-45 phr sodium alginate and further used for encapsulation of urea fertiliser. Non-spherical capsules containing an homogeneous urea dispersion were obtained. © 1999 IoM Communications Ltd.Mahidol UniversityEngineeringArticleSCOPUS