Compatibilization and mechanical properties of compression-molded polypropylene/high-impact polystyrene blends

2018 ◽  
Vol 34 (3) ◽  
pp. 117-127 ◽  
Author(s):  
Felipe Bier de Mello ◽  
Sonia Marli Bohrz Nachtigall ◽  
Cleia de Andrade Salles ◽  
Sandro Campos Amico
Keyword(s):  
Research Work ◽  
Melt Flow Index ◽  
Ethylene Vinyl Acetate ◽  
High Impact ◽  
Flow Index ◽  
High Impact Polystyrene ◽  
Mechanical Tensile ◽  
Styrene Butadiene ◽  
Positive Effect ◽  
Butadiene Styrene

This research work focused on polypropylene/high-impact polystyrene polymer blends. Since this blend (80/20 in weight) was incompatible, styrene–ethylene–butylene–styrene (SEBS) block copolymer, styrene–butadiene–styrene (SBS), and ethylene vinyl acetate were tested as compatibilizers (2.5 or 7.5 wt% in relation to blend). After blending via extrusion, the compositions were compression molded and their mechanical (tensile and impact), morphological (scanning electron microscopy), and rheological (melt flow index and viscosity) properties were evaluated. Blends containing SBS and 7.5 wt% of SEBS showed a positive effect regarding impact strength, although with a decrease in Young’s modulus and tensile strength. Rheological characteristics were also affected by the compatibilizers.

scholarly journals Physical Properties of Short Pineapple Leaf Fibre (PALF) Reinforced High Impact Polystyrene (HIPS) Composites

2009 ◽  
Vol 18 (1) ◽  
pp. 096369350901800 ◽  
Author(s):  
J. P. Siregar ◽  
S. M. Sapuan ◽  
Ab. Rahman ◽  
M. Zaki ◽  
H. M. D. Khairul Zaman
Keyword(s):  
Physical Properties ◽  
Water Absorption ◽  
Melt Flow Index ◽  
High Impact ◽  
Flow Index ◽  
Thickness Swelling ◽  
Compression Moulding ◽  
Melt Mixing ◽  
High Impact Polystyrene ◽  
Absorption Thickness

The aim of this study to investigate the physical properties of short pineapple leaf fibre (SPALF) reinforced high impact polystyrene (HIPS) composites. Three different sizes of the fibre were used in this study which was 10-40mesh, 40-60mesh and 60-80mesh. A five different fibre contents were used in this study which was 10%, 20%, 30%, 40%, and 50%. The fabricated SPALF/HIPS composites were used melt mixing and compression moulding. The physical properties of SPALF/HIPS composites such as water absorption, thickness swelling, melt flow index (MFI), and density board of composites were studied. The result showed that the addition of the SPALF was decreased the physical properties compare to pure HIPS (0% SPALF).

Studies on Thermo-Mechanical Properties of Post-Consumer High Impact Polystyrene in Five Reprocessing Steps

2002 ◽  
Vol 18 (2) ◽  
pp. 99-110 ◽  
Author(s):  
R.C. Santana ◽  
Sati Manrich
Keyword(s):  
Mechanical Properties ◽  
Mechanical Test ◽  
Complex Viscosity ◽  
Melt Flow Index ◽  
Chain Scission ◽  
Mechanical Tests ◽  
High Impact ◽  
Flow Index ◽  
Shear Stresses ◽  
High Impact Polystyrene

This study consisted of an investigation of the thermo-mechanical properties of post-consumer high impact polystyrene (HIPS) through five consecutive injection moulding steps to simulating the recycling cycles. The selectively collected HIPS residue was ground, washed only in water, dried, agglutinated and then moulded as a set of mechanical test specimens before the first step. The melt flow index (MFI), glass transition temperature (Tg), complex viscosity (η*), deflection temperature under flexural load (HDT), tensile, flexural and impact strength tests were determined at each reprocessing cycles. The results revealed that the degradative effect of consecutive recycling on the material's thermal properties was low and may be considered negligible. After five reprocessing cycles, the results showed an ∼8°C decrease of Tg in DSC, an increase of MFI, a decrease in viscosity and a slight decrease of HDT, which could be attributed to chain scission caused by consecutive cycles of exposure to shear stresses and high temperature. The material became slightly more rigid and fragile, as indicated by the mechanical tests.

Investigation of Hardness of Short Abaca (Musa Textile Nee) Fibre-Reinforced High Impact Polystyrene (HIPS) Composites by Response Surface Methodology

2011 ◽  
Vol 471-472 ◽  
pp. 821-826 ◽  
Author(s):  
E.H. Agung ◽  
S.M. Sapuan ◽  
M.M.H. Megat Ahmad ◽  
Dahlan Khairul Mohd. Zaman ◽  
U. Mustofa
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Brinell Hardness ◽  
Hardness Test ◽  
High Impact ◽  
Hot Press ◽  
High Impact Polystyrene ◽  
Hardness Property ◽  
Styrene Butadiene ◽  
Butadiene Styrene

In this paper, the hardness property of abaca (Musa textile Nee) fibre reinforced high impact polystyrene (HIPS) composites with maelic anhydride (MAH) used as coupling agent and styrene butadiene styrene (SBS) copolymer rubber (Cyclo resin) used as impact modifier was investigated using response surface methodology.. The composites were initially fabricated using a rolling machine and finally using a hot press machine to obtain a desired thickness. These samples were then tested for Brinell hardness test. A statistical approach of response surface methodology was used to obtain the interaction between various compositions mentioned above for abaca fibre reinforced HIPS composites. The BHN (Brinell hardness number) was analyzed using response surface methodology (Box Behnken method).

Sign in / Sign up

Export Citation Format

Share Document