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Plastic Failure Analysis & Testing

You are here: Home / Archives for Plastic Failure Analysis & Testing

January 3, 2019

Are Polypropylene Mesh Implants Safe?

Recent problems and failures with PP mesh implants have led to thousands of hernia and surgical mesh lawsuits All products that contain hydrogen bonded to carbon are susceptible to oxidative degradation. For example, foods that we eat and medicines that we take contain hydrogen bonded to carbon.

December 19, 2018

Redesign of Plastic Pail to Eliminate Failure

Dr. Duane Priddy, Plastic Expert Group Plastic five-gallon pails, with handles attached, are used extensively. Our client manufactures these pails and was experiencing occasional failure at the point of attachment of the handle to the side of the pail. Our experts evaluated the current design and

December 19, 2018

Redesign of Plastic Bottle Closure to Eliminate Failure

Dr. Duane Priddy, Plastic Expert Group The client manufactures plastic bottles for chemical solutions. At the end of the threads is a tab that produces a clicking sound when the screw cap was fully seated. Occasionally a tab would break off the bottle. Our experts evaluated the current design and

December 19, 2018

Cause of Worm-Tracking of Chrome Plated ABS Bumpers

Dr. Duane Priddy, Plastic Expert Group The client manufactures chrome-plated ABS bumpers for an automotive customer. They periodically experience bumpers with “worm tracking” on them as seen in the figure below. Our experts extensively analyzed a worm-tracked bumper comparing areas where the

December 19, 2018

Fiber Optic Not Resistant to Corrosive Chemicals

The product shown below is an inspection light using the principles of illumination fiber optics to disperse high-intensity light in a 360-degree pattern and is widely deployed by military and homeland security personnel. The light enters the fiber optic from a 5-Watt LED flashLight (circled area).

December 19, 2018

Improved Fiber Optic Materials by Improving the Polymerization Process

Acrylic and methacrylic-based optical systems generally exhibit superior optical properties such as light transmission when bulk polymerized (e.g., cast in situ) in the purest form possible. There are normally two types of impurities that cause bulk scattering, bubbles, and chemical impurities such

December 19, 2018

Prediction of Service Life for Plastic Parts

Dr. Duane Priddy, Plastic Expert Group Plastic parts undergo both chemical and physical aging during their use. The prudent plastic part manufacturer seeks to demonstrate the useful life of their product in order to determine an appropriate warranty period. Of course, running laboratory tests

PVC discoloration

December 17, 2016

PVC Discoloration

PVC fabrics are used extensively in boats. Glen Raven Fabrics decided to hire Plastic Expert Group to figure out the root cause of the PVC discoloration. We performed an extensive analysis of discolored PVC fabrics to identify the chemistry taking place in the fabric that was causing the

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