additives feature | Clarifiers and nucleators
Pallets (right) are a target application for Milliken’s new HPN210M nucleator, while its established HPN20E grade is now being used in IBM pharma bottles (below)
HPN 20E overrides the nucleation-effect of pigments to reduce variation and improve dimensional control independent of colour. Adeka’s NA-27 nucleator is finding use in filled and pigmented PP, particularly for interior and exterior automotive applications, where it improves mechanical properties. The organophos- phorus salt-based formula offers better dispersion than other Adeka grades, which helps the nucleating agent function more effectively, says Goman. While most nucleants produce the alpha-crystal phase of PP, a special class of nucleating agents forms the beta-crystal phase. Beta nucleating agents are different from other nucleators, and they find a fit in specialized, niche applications, notes Phil Jacoby, inventor of the technology and now a consult- ant at Jacoby Polymer Consulting. While most nucleators increase modulus,
beta nucleators slightly reduce modulus but significantly improve impact strength. If an extruded, beta-nucleated PP sheet is stretched in the solid state, such as on a BOPP film line, the beta crystals undergo self-cavitation, leading to the formation of micropores that are below a micron in size, notes Jacoby. The additive finds use in microporous, breathable films, such as: house wrap or in lithium ion batteries; in high-strength geotextile sheets; in thermo-
formed food packaging containers; and in pressurized PP pipes. Mayzo specializes in beta nucleant masterbatches, and NJC offers a pure beta nucleator.
More information: AMI’s Polyolefin Additives 2015 conference takes place in Cologne, Germany on 20-22 October. The programme has recently been published at
http://bit.ly/POadd15.
Click on the links for more information: ❙
www.adk.co.jp/en ❙
www.amfine.com ❙
www.Braskem.com ❙
www.BASF.com ❙
www.Grace.com ❙
www.jacobypolymer.com ❙
www.Milliken.com ❙
www.Mayzo.com ❙
www.njceurope.com ❙
www.roquette-performance-plastics.com
NORNER - Expert Services in Plastic Additives NORNER is an industrially focused plastics institute.
Norner holds world leading competence in plastic additives and polymer modifi cation which includes a versatile centre for additive performance testing with sophisticated laboratory equipment and processing pilots. This includes a wide range of exposure testing facilities.
Recipe development, compounding, performance verifi cation, moulding and extrusion, exposure and life time testing and additive analysis.
How can we help you? read more at
www.norner.no /
post@norner.no
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 |
Page 83 |
Page 84 |
Page 85 |
Page 86
