Phos Plastic Degradation Services
PE&PP: Validation Testing
Validation Testing of Mixed Polymer Beads: Aged PE and Pristine PP
Our validation testing protocol is meticulously crafted to swiftly and accurately assess the homogeneity of mixed polymer samples. This process is particularly crucial when evaluating combinations of aged Polyethylene (PE) beads mixed with pristine Polypropylene (PP) beads.
The testing is also designed to detect any unexpected or undesired degradation that may have occurred during the manufacturing process. A key observation in these tests is the distinct visibility of unaged PP, which prominently stands out at the center of the PE pellets. This contrast not only aids in the analysis of the material composition but also underscores the effectiveness of our testing in identifying variances within mixed polymer samples.
PE Bottle Cap Degradation
PE Bottle Cap Degradation Analysis: Focus on Mechanically Induced Aging
Our prototyping imaging protocol is intricately designed to uncover potential weaknesses in the formation or extrusion processes of Polyethylene (PE) bottle caps. Additionally, it aims to identify any design or structural vulnerabilities that might contribute to premature degradation.
In our analysis, images are segmented based on the percentage of oxidation, specifically measured by the Carbonyl Index (CI). We have observed that early-stage degradation is characterized by an increase in chemical degradation due to oxidation, without significant physical degradation. In contrast, late-stage degradation, marked by a CI of 1.0, is associated with a substantial increase in both surface and bulk crystallinity. This progression from early to late-stage degradation provides critical insights into the aging process of PE bottle caps, particularly those affected by mechanical wear.
Testing On Site or In Our Labs
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— Phos Technology