Reliable. Resilient. Recycled.
Reliable. Resilient. Recycled.
Unfilled polypropylene has rather low impact and stiffness. As a result, polypropylene materials are often modified to improve their mechanical properties. To improve stiffness the polypropylene can be compounded with short glass fiber (SGF-PP) or long glass fiber (LGF-PP). Key benefits of glass reinforced polypropylene compounds include significant increase in tensile, flexural, and heat performance. […]
The short answer is no. There are no special tooling modifications required to mold Injectoblend™ recycled materials. A common misperception is that the shrink characteristics for virgin materials are different than their recycled equivalent. The obvious concern with a different shrink factor is the need to weld and/or re-cut the steel on the cavities and […]
Nylon 66 is a crystalline engineering thermoplastic made up of hexamethylenediamine and adipic acid that undergo a condensation reaction to form the polymer and is noted for the following performance characteristics: Chemical Resistance Abrasion Reistance Friction Resistance Heat Resistance Nylon 66 is commonly available in general purpose, glass reinforced and impact modified grades. For 33% […]
Most large OEM’s have their own internal engineering teams to help evaluate and approve materials that will be used in the construction of their product. Plastics is no exception with OEM’s maintaining an approved material source list assigned to defined physical, thermal, and environmental performance specifications. This formal approval process can be time consuming and […]
One of the major benefits of 3D math data for component designs is the ability of CAD programs to accurately generate part volume (cm³). To calculate estimated part weight in grams using 3D CAD data multiply the calculated part volume (cm³) by the specific gravity (g/cm³) for the target plastic material.
1) Do the mold dimensions fit between the machine tie bar spacing and within the platen? 2) Is the machine clamp tonnage sufficient? Calculate estimated machine clamp tonnage by multiplying the part’s projected surface area by the clamping force factor for the specified plastic material. This simple calculation is a good rule of thumb, but […]
Polycarbonate is available in a wide range of viscosities for blow molding, extrusion, and injection molding applications. A melt flow rate (MFR) test using an extrusion plastometer is an excellent way to determine the viscosity of polycarbonate. Below are typical melt flow rate ranges based on ASTM D1238 (condition 300/1.2): Blow molding grades (eg. 5 […]
Polycarbonate resins are amorphous thermoplastic polymers based on bisphenol A. Polycarbonate is noted for the following performance characteristics: High Impact Strength Dimensional Stability Heat Resistance Memory Clarity A major drawback of polycarbonate is its susceptibility to chemical attack in certain end use environments. Avoid using PC in environments with methyl alcohol, acetone, ketones, ethers, aromatic […]
Acetal resins are semi-crystalline, thermoplastic polymers commonly referred to as polyoxymethylene (POM). Acetal is noted for the following characteristics: Mechanical Strength Rigidity Natural Lubricity Chemical Resistance Fatigue Endurance Acetal is made by the polymerization of formaldehyde. When overheated acetal can form gaseous decomposition products that are largely formaldehyde and can cause irritation to the skin, […]
