scholarly journals Recycled polycarbonate as impact modifier in polypropylene

2019 ◽  
Author(s):  
Jean Baptiste X. Michel Hau ◽  
Baltus Cornelius Bonse
Keyword(s):  
Impact Modifier

Additives with Dual Function - Acrylate Ester Copolymers as Modifiers for Engineering Polymers and as Carrier Resin for Masterbatches

2003 ◽  
Vol 11 (2) ◽  
pp. 91-100 ◽  
Author(s):  
K. Hausmann ◽  
R. Chou
Keyword(s):  
Coupling Agents ◽  
Dual Function ◽  
Molecular Architecture ◽  
Ethylene Copolymers ◽  
Improve Product ◽  
Polymeric Additives ◽  
Impact Modifier ◽  
End Use ◽  
Engineering Polymers

Additives are generally perceived to improve product properties. Depending on the end use this polymeric additives can be used as impact modifiers, coupling agents or compatibilisers. In this paper a family of ethylene copolymers is described which are characterised through a very heterogeneous molecular architecture and thus an enhanced compatibility with other polymers and fillers. This allows them to fulfil two functions: they can be used as compatibiliser or impact modifier, but due to their high filler acceptance they are also useful as a carrier resin for masterbatches

Influences of NBR/Al2O3/YSZ as Fillers for PMMA Composite on the Thermal Properties

2017 ◽  
Vol 888 ◽  
pp. 198-202
Author(s):  
Ahmed Omran Alhareb ◽  
Hazizan Md Akil ◽  
Zainal Arifin Ahmad
Keyword(s):  
Thermal Stability ◽  
Thermal Properties ◽  
Butadiene Rubber ◽  
Pmma Matrix ◽  
Nitrile Butadiene Rubber ◽  
Monomer Content ◽  
Unreacted Monomer ◽  
Impact Modifier ◽  
Dsc Curves ◽  
Pmma Powder

The aim of this study is to investigate the effect of nitrile butadiene rubber (NBR as impact modifier) together with Al2O3/YSZ (toughening) as different filler ratios in PMMA material on the DSC thermal properties. PMMA matrix without fillers was mixed between PMMA powder and 0.5 wt.% of BPO and fixed at 7.5 wt.% of NBR particles with different ratios of filler (1, 3, 5, 7 and 10 wt.%) of Al2O3/YSZ mixture filler by (1:1 ratio). The TGA data were shown that the PMMA composite have better thermal stability compared to unreinforced PMMA matrix. While, DSC curves shows slightly similar in Tg value. DSC results also indicated the presence of unreacted monomer content for both reinforced and unreinforced PMMA composites. As conclusion of this study, the reinforced PMMA composites are improved in thermal stability compared to unreinforced PMMA matrix.

Effect of the core-shell impact modifier shell thickness on toughening PVC

2004 ◽  
Vol 44 (10) ◽  
pp. 1885-1889 ◽  
Author(s):  
Juh-Shyong Lee ◽  
Feng-Chih Chang
Keyword(s):  
Shell Thickness ◽  
Core Shell ◽  
The Core ◽  
Impact Modifier

Enhanced impact modifier for rigid PVC formulations

2003 ◽  
Vol 9 (1) ◽  
pp. 19-25 ◽  
Author(s):  
Lawrence J. Effler ◽  
Mark T. Berard
Keyword(s):  
Impact Modifier ◽  
Rigid Pvc

The Frequency Effects on Fatigue Threshold of PVC-M and PVC-U in Air and Water Medium

2008 ◽  
Vol 41-42 ◽  
pp. 183-187
Author(s):  
N. Samat ◽  
Alan Whittle ◽  
Mark Hoffman
Keyword(s):  
Stress Ratio ◽  
Low Frequency ◽  
Threshold Value ◽  
Cyclic Fatigue ◽  
Fatigue Threshold ◽  
Water Medium ◽  
Chlorinated Polyethylene ◽  
Frequency Effects ◽  
Testing Environment ◽  
Impact Modifier

The cyclic fatigue threshold value (Kth) of PVC materials with (PVC-M) and without (PVC-U) impact modifier was determined and compared in air and water environments. The PVCM specimens contain 6 pphr of chlorinated polyethylene (CPE) impact modifier. The testing was undertaken at a stress ratio of R=0.1 and fatigue threshold was evaluated at 3 different frequencies: 1Hz, 7Hz and 20Hz. Frequency noticeably affected the fatigue threshold value; regardless of the testing environment; at low frequency the fatigue threshold of PVC-M was below PVC-U, however, this difference gradually decreased with increasing frequency as Kth of PVC-M increased but Kth of PVC-U remained constant. This trend was accelerated in water where a higher of fatigue threshold, Kth, was also observed. A lower fatigue threshold of PVC-M than PVC-U is associated with the presence of CPE particles. The absorption of water into the PVC matrix was evident with the formation of nodular structures observed on the fracture surface. The presence of the nodular structures (at regions close to the threshold) has retarded the fibrillation of crazes, which then blunted the crack propagation.

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