Study on processs and impact strength for a rotationally molded truck fender

Synthesis and Application of Hydrophobically Associating Cationic Polyacrylamide

“…Initiator and initiation temperature: Initiator system and initiator dosage selected by micellar polymerization were similar to other ways of polymerization of acrylamide and potassium persulfate (KSP) 20,29 was the most commonly used water-soluble initiator and the initiator dosage was generally the mass ratio of 0.1 to 1 %. Other water-soluble initiators: redox initiators such as ammonium persulfate-sodium bisulfite 21,[30][31][32] ; water-soluble azo initiator such as azobisisobutylamidine hydrochloride; redox composite initiator such as potassium persulfate-sodium thiosulfate-azobis isobutyryl cyanide 33 . But few studies were carried out by the separate use of an oilsoluble initiator such as azobisisobutyronitrile initiator.…”

“…However, there were a lot of researches about applications of HACPAM as flocculant for treatment of papermaking wastewater as well and their flocculation performance was better than traditional cationic polyacrylamide. Li et al 33 had synthesized P(AM-DMDAAC-OA) by using octadecyl acrylate (OA) as hydrophobic monomer and researched flocculation effect of the paper mill wastewater by adding P(AM-DMDAAC-OA). Due to the strong hydrophobic interaction of P(AM-DMDAAC-OA), its flocculation performance was better than that of polymeric ferric sulfate and polyacrylamide.…”

A New Approach for Resin Selection in Rotational Molding

“…The positive and negative separation measures are calculated using Equations (8) and (9) and are shown in Table 4. The separation measures are also represented in Figure 1.…”

“…Recently Li et al [9] have optimized the process conditions of LLDPE for a rotationally-molded truck fender to achieve the highest impact strength with respect to the heating time and MFI. Liu et al [10] have attempted to optimize the impact strength of rotationally-molded products through Taguchi's designs of experiments technique (DOE).…”

Processing of a LLDPE/HDPE pressure vessel liner by rotomolding

“…The low tooling cost makes rotomolding an ideal process for prototype production for many applications, such as the study of liners for compressed natural gas (CNG) type IV (composite) filament-wound pressure vessels, as recommended in ISO 11439:00 1 -Gas cylinders-high pressure cylinders for the on-board storage of natural gas as a fuel for automotive vehicles 2,3 . Rotomolding process operates at low pressure and allows the production of complex tension-free samples compared to high pressure processes 4,5 . The rotomolding process requires a powdered or micronized polymer and thus some air bubbles can be entrapped in the molten polymeric material 6 .…”