Albis breaks ground on new compounding plant
Weekly Resin Report: PE purchasing may have peaked
New PA12 from Evonik meets stringent fire protection code for rail vehicles
A. Schulman moving ahead with new product and sales strategy after “reset year”
Solid PS & PET bottle resin prices slide in April
Teknor Apex grows nylon business with new Creamid product line (yes Creamid)
NILIT completes sale of nylon division to Celanese
Ineos Styrolution to increase ABS & ASA capacity in Mexico and announces new plant in Texas
Weekly Resin Report: PE, PP prices trending down
M Holland to build new distribution center near Chicago & Here
Nova Chemicals to pay large settlement to Dow for patent infringement
PP prices tumble 5.5 cents in April
Lanxess investing $27 million in Belgium to improve nylon production & Here
Plasticomp installs new pultrusion line to make long carbon fiber reinforced materials
Most of us in the plastic materials industry have some familiarity with the various ASTM and ISO test methods that are reported on data sheets and certificates of analysis. However, if you do a deep dive into any of the test methods, and by deep dive I mean read from stem to stern, you will find all kinds of things that you might not have thought of. Having set up and run an accredited testing laboratory in the past, I performed deep dives into many of the ASTM and ISO procedures.
Today, I want to explore one small part of the ASTM D 638 procedure for tensile properties. Before you say that you would rather drink battery acid, let me assure you that I will not dive too deep and I will leave you with some practical information and you will be able to point out a mistake on a lot of data sheets and certificates of analysis in the future.
Commodity material prices increase in March
Companies working to develop new nano-cellulose reinforced material
New M&G PET plant back on schedule after problems with contractor
Akzo Nobel to separate chemicals arm
ExxonMobil and SABIC to build joint polyethylene plant in Corpus Christi TX and Here
Nova buying majority stake in olefins plant
US production of polyethylene to exceed domestic demand
Weekly Resin Report: Processors seek to shore up depleted inventories
Editors Note: Sorry about the news digest not being posted last week. I had a bit of a family emergency.
Japan Polypropylene introduces new grade of glass fiber reinforced TPO for automotive interior parts
Invista develops new nylon 1,6 resin
Weekly Resin Report (4/11/2017): Processor and supplier activity picks up at start of Q2
New Clariant master-batches boost properties for recycled PET and PLA
Weekly Resin Report (4/4/2017): Spot polypropylene prices develop steep discounts to contracts
Formosa shuts down PVC plant after leak
Miliken & Company acquires Keystone Aniline
European compounders threatened by tight titanium dioxide supplies
Clariant introduces low VOC stabilizer packages for automotive interior plastics
Trinseo doubles down on medical market, achieves ISO 13485 certification
Weekly Resin Report II: Flow of offers improves, prompted by better liquidity for most materials
Compounding Solutions to provide compounding for Lubrizol medical grade polyurethanes
Solvay sells cross-linkable compounds unit
Nova, Borealis and Total Petrochemicals to form joint venture to make PE in Texas
Americhem to overhaul UK manufacturing site
A moisture analyzer is a great tool for any plastic processor to have. It will tell you for sure that you are drying the material adequately. It is also a great tool for material suppliers to have so that they can aid customers who are trying to troubleshoot problems.
How exactly a moisture analyzer works seems like a bit of witchcraft. You put a bit of material in, you choose some type of program and hit the start button. Ten to twenty minutes later, the readout shows a percentage. The process is a little bit more complex than just heating the material and burning off the moisture weighing the sample before and after. You don’t need a moisture analyzer to do that, you can do that with a lab dryer and lab balance. How does it work?
New 6500 ton injection molding machine to mold septic tanks
BASF to invest in new additives plant in China
Spanish oil company Repsol introduces line of PP, PE and EVA for medical applications
Toho Tenax develops new carbon fiber reinforced PEEK based on recycled feedstocks
Weekly resin report: Spot PP and PE prices ease back a penny
Chevron Phillips declares force majeure on HDPE
Nylon 6 and 6/6 price increases take hold
Teknor Apex inks nylon distribution deal with M. Holland
Dow veteran joins PolyOne board
Lanxess’ transformation leads to solid 2016 financial results
French start-up advances milk-based bioplastics
US Navy develops new transparent TPE armor
Russian supplier Sibur sees growth in polyolefin
Hydraulic Pressure vs Plastic Pressure
When we refer to injection pressure, we can be talking about one of two things. We can be talking about hydraulic pressure which refers to the pressure that the hydraulic ram is exerting on the screw or we can be talking about plastic pressure which is the pressure that the screw puts on the melted plastic.
These two are not the same thing and if you specify an injection pressure range on your processing guides, you should only specify hydraulic pressure and you should be very clear about it.
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