ADDITIVES | IMPACT MODIFIERS
the show has been cancelled, it is blogging about them instead. SBG-001, from Fine-Blend, is a core-shell impact modifier with a high compatibility to polycarbonate and designed for use in PC/ABS blends (Figure 3). The butadiene rubber core improves impact performance while the SAN-GMA (styrene-acryloni- trile-glycidyl methacrylate) copolymer shell provides compatibility with the PC as the GMA (epoxy) groups can react with the polycarbonate end-groups. The supplier says toughening efficiency is better than conventional MBS impact modifiers. The grade is also claimed to improve heat stability and hydrolytic resistance, with the additional benefit of reduced incidence of surface defects. An addition of 3% of SBG-001 is effective in upgrading the impact properties of recycled PC/ABS, the com- pany says.
Another grade from Fine-Blend is SOG-03, a POE-g-GMA (polyolefin elastomer with GMA grafts), which can be used as a toughener in thermoplastic polyesters and PC/PBT alloys. SACO AEI Polymers’ Armidan impact modifiers
are maleic anhydride grafted POEs. They can be incorporated into PA and PBT to improve deforma- tion and crack resistance of the finished product, with typical loading levels varying from 8-25% depending on the system. The SOG-02 grade is claimed to efficiently improve impact resistance of PBT and its alloys,
especially glass reinforced PBT types. SACO AEI Polymers highlights its good flow characteristics in particular. CMG5805 can improve impact resistance of PA and PA-based alloys while CMG5805-L has better toughening efficiency at low temperatures.
Broad MAH options Turkey’s Tisan Engineering Plastics claims to be the first in the country to manufacture a range of maleic anhydride grafted polymers, which it markets for impact modification and compatibilisa- tion applications under the Olebond brand. Manufactured by reactive extrusion grafting of maleic anhydride, the products are based on a broad range of polymers, including PE, PP, EVA and ABS.
Olebond 7403 is a polyolefin-based grade suitable for impact modification of polyamides. It is claimed to provide very good compatibility and bonding with polyamide matrices and, due to its low Tg, provides good performance at low temperatures. Compatibilisation grades include Olebond 740, a PP based product designed for use with non polar polymer systems, and Olebond 7402, which is used in production of halogen-free cable compounds, multilayer pipes, and PE blends with other polymers. It promotes adhesion of the PE to barrier-type polymers such as PA and ethylene vinyl alcohol (EVOH), as well as to metal, PE, PP, cellu- lose, polyester, and PC. The Olebond 7402 CW product is said to be an effective coupling agent
Elix and Polyscope target interiors
ELIX Polymers and Polyscope Poly- mers have been working on develop- ment of specialty compounds for high demanding automotive premium applications such as sunroof modules and other structural parts. An ELIX Polymers modifier is used
for Polyscope’s Xiran products, which are based on styrene maleic anhy- dride (SMA). It is a powder form ABS, which is said to provide superior impact strength performance at room and low temperatures for polymer blends. The ELIX portfolio also includes several SAN compounding grades used as a base resin for colour concentrates. According to the two companies,
Xiran outperforms many other polymers when it comes to the
28 COMPOUNDING WORLD | April 2021
Sunroof frames are a prime application for Polyscope’s Xiran polymer
production of large high precision components requiring dimensional stability, low creep, high temperature resistance, stiffness, and low warpage. Its ability to be moulded within very
tight tolerances makes it well suited for complex precision parts such as sunroof frames. �
www.elix-polymers.com �
www.polyscope.eu
www.compoundingworld.com
IMAGE: ELIX POLYMERS/POLYSCOPE
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58 |
Page 59 |
Page 60 |
Page 61 |
Page 62 |
Page 63 |
Page 64 |
Page 65 |
Page 66 |
Page 67 |
Page 68 |
Page 69 |
Page 70 |
Page 71 |
Page 72 |
Page 73 |
Page 74 |
Page 75 |
Page 76 |
Page 77 |
Page 78 |
Page 79 |
Page 80 |
Page 81 |
Page 82
