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Attribution: Dr. MiaoMiao Xiao, Research Engineer
Ingenia Polymer Corp.
Excerpt: Blocking is the term used to describe the adhesion between adjacent layers of films due to presence of Van der Waal’s interactions, specifically between the amorphous regions of polymer. This occurs in tightly wound rolls of film and increases in the presence of heat and pressure. An example of blocking is the sticking together of the thin plastic bags in the produce section in the grocery stores.
Excerpt: In recent years, new liquid phosphite chemistries have been developed for the stabiliza- tion of polyolefins offering a number of technical and regulatory advantages over more traditional alternatives. However, liquid additives are not the preferred physical form for incorporation into the polymer, especially when a liquid feeder is not readily available. Liquid phosphites are additionally challenging as a liquid feeding system will need to be carefully temperature controlled to manage metering viscosity and nitrogen blan- keted to prevent additive degradation.
Attribution: Michael McLaren, Dr. Miao Miao Xiao, Patrick Greenidge
Ingenia Polymers Corp.
Excerpt: Films made from polyethylene/polyolefins exhibit a high Coefficient of Friction (CoF). This makes handling/conversion of the films difficult due to the tackiness of the surface and the inability of the films to slide over themselves and packaging equipment surfaces. The tackiness of the films is reduced by introducing slip agents. Slip agents are materials which act at the surface of the film or object to reduce the friction between it and another surface, thereby reducing CoF.
Attribution: Dr. MiaoMiao Xiao, Michael McLaren, Patrick Greenidge, Richard Siewsankar, Keith Henderson, Chuol Solomon
Ingenia Polymers Corp.
Excerpt: Recycle friendly technologies designed to enable film structures that contain ever higher levels of recyclate resin, functional additives or pigments that are derived from recycled sources and are themselves more easily recycled.
Attribution: Michael McLaren, Alyssa Schneider
Ingenia Polymers Corp.
Excerpt: Elimination of LDPE in Shrink Films and Potential for Down-gauging Ingenia’s INABLE product line – supporting your Circular Economy efforts
Attribution: Ali Goger, Richard Siewsankar and Patrick Greenidge
Ingenia Polymers Corp.
Excerpt: The use of Ingenia’s proprietary purge compounds increases overall efficiency and lowers costs by reducing downtime between color and material changeovers. Moreover, our purge compounds can also extend the life of your processing equipment and reduce waste.
Excerpt: Nylon and EVOH purge compound is designed specifically for rapid change-over in multilayer film extrusion. This thermoplastic compound is safe to use, is not abrasive or corrosive, and does not emit noxious fumes.
This specialty compound is highly effective in reducing change-over time and reducing scrap while improving manufacturing on-stream time. The film bubble is maintained during the transition.
Contents: Summary, Typical Purge Procedure, Blown Film – Optimal Procedure, Gels, Typical Values, Form, and Package Type.
Excerpt: Nylon and EVOH purge compound is designed specifically for rapid change-over in multilayer film extrusion. This thermoplastic compound is safe to use, is not abrasive or corrosive, and does not emit noxious fumes.
This specialty compound is highly effective in reducing change-over time and reducing scrap while improving manufacturing on-stream time. The film bubble is maintained during the transition.
Excerpt: We have all seen it several times – what was a perfectly good film has changed color – it has become yellow or pink or tan. It’s due to Gas fading. Gas fading is also known in the film industry as ‘pinking’ or ‘yellowing’.
Excerpt: We have all seen it several times – what was a perfectly good film has changed color – it has become yellow or pink or tan. It’s due to Gas fading. Gas fading is also known in the film industry as ‘pinking’ or ‘yellowing’.
Excerpt: Plastic films are typically clear when made from LDPE or LLDPE and transluscent when made from HDPE. These films are pigmented white by using Titanium Dioxide since it imparts maximum opacity and whiteness over other minerals.