Properties of EPDM/PP thermoplastic vulcanizates produced by an intermeshing-type internal mixer comparing with a co-rotating twin-screw extruder
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Wattana Teppinta
,
Banja Junhasavasdikul
Abstract
A unique technology for producing thermoplastic vulcanizate (TPV) has been developed using an intermeshing-type internal mixer (ITM). TPV produced by the ITM was compared with that produced using a co-rotating twin screw extruder (Co-TSE) to assess the former’s commercial possibilities. TPV, originating from ethylene-propylene-diene monomer (EPDM) and polypropylene (PP), was produced by both machines with equal filled volumes, same shear rate, and same specific mechanical energy. Results indicate that ITMs can be used to produce TPV with mechanical properties comparable to those of TPV produced by Co-TSE. TPV can be produced with a lower shear rate with ITM compared to Co-TSE. A long residence time can be maintained in the mixing chamber of the ITM, allowing high conversion of the cross-linking reaction and resulting in better elastic recovery properties due to the higher cross-linking density. However, this resulted in higher viscosity of TPV produced by ITM.
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Articles in the same Issue
- Frontmatter
- Material properties
- Thermo-oxidative and thermal degradation kinetics of silica/polymethyl methacrylate composites with electrostatic interaction phase interfaces
- Study of the rheology and foaming processes of poly(vinyl chloride) plastisols with different foaming agents
- The non-isothermal crystallization behavior of polyamide 6 and polyamide 6/HDPE/MAH/L-101 composites
- Preparation and assembly
- Preparation and properties of biodegradable polymer/nano-hydroxyapatite bioceramic scaffold for spongy bone regeneration
- Properties of EPDM/PP thermoplastic vulcanizates produced by an intermeshing-type internal mixer comparing with a co-rotating twin-screw extruder
- Applications and characterization of silicalite-1/polydimethylsiloxane composite membranes for the pervaporation of a model solution and fermentation broth
- Electroless plate of polyaniline-silver composite layer on polyester fibers
- Surface modification of polymeric flat sheet membranes by adding oligomeric fluoroalcohol
- Engineering and processing
- Processing polymer nanocomposites with natural additives for medical applications
- Dissolution improvement of an active pharmaceutical ingredient in a polymer melt by hot melt extrusion
- Determination of the fundamental dimension development in building direction for laser-sintered parts
Articles in the same Issue
- Frontmatter
- Material properties
- Thermo-oxidative and thermal degradation kinetics of silica/polymethyl methacrylate composites with electrostatic interaction phase interfaces
- Study of the rheology and foaming processes of poly(vinyl chloride) plastisols with different foaming agents
- The non-isothermal crystallization behavior of polyamide 6 and polyamide 6/HDPE/MAH/L-101 composites
- Preparation and assembly
- Preparation and properties of biodegradable polymer/nano-hydroxyapatite bioceramic scaffold for spongy bone regeneration
- Properties of EPDM/PP thermoplastic vulcanizates produced by an intermeshing-type internal mixer comparing with a co-rotating twin-screw extruder
- Applications and characterization of silicalite-1/polydimethylsiloxane composite membranes for the pervaporation of a model solution and fermentation broth
- Electroless plate of polyaniline-silver composite layer on polyester fibers
- Surface modification of polymeric flat sheet membranes by adding oligomeric fluoroalcohol
- Engineering and processing
- Processing polymer nanocomposites with natural additives for medical applications
- Dissolution improvement of an active pharmaceutical ingredient in a polymer melt by hot melt extrusion
- Determination of the fundamental dimension development in building direction for laser-sintered parts
