Effect of a styrene-butadiene copolymer on the phase structure and impact strength of polyethylene/high-impact polystyrene blends

2001 ◽  
Vol 81 (3) ◽  
pp. 570-580 ◽  
Author(s):  
I. Fortelný ◽  
D. Michálková ◽  
J. Hromádková ◽  
F. Lednický
Keyword(s):  
Impact Strength ◽  
Phase Structure ◽  
High Impact ◽  
High Impact Polystyrene ◽  
Styrene Butadiene

scholarly journals PENGARUH PELARUT (ETIL BENZENA), PERBANDINGAN STYRENE BUTADIENE RUBBER (SBR) TERHADAP STIREN, DAN JUMLAH INISIATOR (BPO) PADA PEMBUATAN HIGH IMPACT POLYSTYRENE (HIPS)

2010 ◽  
Vol 2 (2) ◽  
Author(s):  
Dwi Wahyuni
Keyword(s):  
Impact Strength ◽  
High Heat ◽  
High Impact ◽  
Styrene Butadiene Rubber ◽  
Ethyl Benzene ◽  
Butadiene Rubber ◽  
High Impact Polystyrene ◽  
Aerospace Material ◽  
Styrene Butadiene ◽  
The Impact

High impact polystyrene (HIPS) is the widely used material now, and also for the aerospace material as a communication instrument system and an electrical insulation. In order to produce HIPS, there are a view method which can be executed. In this case, the research is executed by the copolymerization processes of styrene butadiene rubber (SBR) solution in styrene. Variables which influence to the result properties (HIPS) are the SBR to styrene ratio, the solvent (ethyl benzene), the benzoyl peroxide initiator (BPO). The properties of the product are tensile strength, impact strength, softening point, melting point and the hardness. The result showed that the properties of the HIPS product was near of the HIPS high heat. The optimal processes condition was the solvent to the styrene monomer ratio was 0.05492, the SBR to the styrene ratio was 0.1236 and the BPO to the styrene ratio was 0,0003. The properties of the HIPS product were: the impact strength was (519-1215) N per cm, the tensil strength not more than was 106 N per cm, the elongation was (36-54) percent and the hardness was (65-69) shore A. This properties achieved at the mixing polymerization processes 4 scale in 11-12 hours, the early mixing at 4 scale 1 hours, the cutting chain 2 drops.

Study on Non-Halogen Flame-Retarded HIPS with High Strength HIPS

2008 ◽  
Vol 47-50 ◽  
pp. 1245-1249
Author(s):  
Zhong Wei Wu ◽  
Qing Jie Jiao ◽  
Chong Guang Zang ◽  
Hui Lan
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Impact Strength ◽  
High Strength ◽  
High Impact ◽  
High Impact Polystyrene ◽  
Flame Retarded ◽  
Notch Impact Strength

PPO was a better intensifier and charred material for High-impact polystyrene (HIPS), it could make HIPS achieve UL94V-0 with APP, MC, RDP. Especially, RDP not only improved the flame-retarded property but also controlled the hole producing, and had the best consistent with matrix which could improve the mechanical properties. SBS and SEBS were better consistent with matrix, especially SEBS was tiny granule, which could be dispersed in matrix easily. The properties of SEBS toughened the non-halogen flame-retarded HIPS was followed: tensile strength: 18.83MPa; izod notch impact strength: 15.7kJ/m2; UL94V-0.

Some considerations on the second phase structure in high impact polystyrene and on the related measurement methods

1994 ◽  
Vol 13 (21) ◽  
pp. 1555-1557 ◽  
Author(s):  
S. Anzaldi ◽  
L. Bonifaci ◽  
E. Malaguti ◽  
M. Vighi ◽  
G. P. Ravanetti
Keyword(s):  
Phase Structure ◽  
Measurement Methods ◽  
High Impact ◽  
Second Phase ◽  
High Impact Polystyrene

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.

Sign in / Sign up

Export Citation Format

Share Document