a mixture  of  sodium  lauryl  sulfate  (sls)  as  ionic  emulsifer  and  stearyl alcohol as non-ionic emulsifer was employed in a vinyl chloride emulsion polymerization  reaction  to  study  the  infuence  of  various  interactive parameters involved in the reaction system. it was found that the particle size was dependent on the amount and type of emulsifer. the average particle size of polyv...

Plasticizers for poly(vinyl chloride) (PVC), including ortho- and tere-phthalates, trimellitates, citrates, various aliphatic dicarboxylates, are systematically studied with all-atom molecular simulation. Effects of plasticizer structure on its performance, as measured by performance metrics thermodynamic compatibility PVC, effectiveness reducing the material’s Young’s modulus, migration rate i...

BDNPF/A is a useful energetic plasticizer, but mixed formal, which consists of BDNPF, DNPBF, and BDNBF, is anticipated to be better than BDNPF/A in chemically, thermally and economically. Last year, we successfully synthesized and characterized the mixed formal that has minimum contents of diformal. It is well known that the existing mixed formal always has an 8 ~ 10 % of diformal. At first, we...

The application of phthalate plasticizers has been restricted around the world due to their poor migration and potential harm human body. Hence, producing functional bio-based via exploiting clean reusable resources meets satisfaction current demands. In this study, flame-retardant rubber seed oil-based plasticize (FRP) was prepared epoxidation reaction ring opening addition reactions, which us...

Di-2-ethylhexyl phthalate (DEHP), often referred to as dioctyl phthalate or DOP, is the most widely used plasticizer for vinyl plastics, and approximately 350 million pounds were produced in the United States during 1970. Altogether the production of phthalate ester plasticizers was 855 million pounds (1). The cumulative production of DEHP and related phthalate plasticizers in the United States...

Diclofenac sodium as ophthalmic dosage form is used for the treatment of the pain, swelling and redness of patients' eyes recovering from cataract surgery; however, it faces the bioavailability limitation of eye drops due to effective protective mechanisms and corneal barrier functions in the eyes. Therefore, this investigation was aimed to develop ocular film formulations to achieve controlled...

Molecular dynamics simulations were carried out to study the effects of interface interactions between a crystalline structure and a plastic bonded explosive (PBX) system. In this work, the hydroxyl-terminated polybutadiene (HTPB) represents the polymer, isophorone diisocyanate (IPDI) is the diisocyanate and dioctyl adipate (DOA) is the plasticizer. Two different crystal high explosives compone...