Thermoplastic Materials

Thermoplastic materials are polymers that soften when heated and harden when cooled, allowing them to be repeatedly shaped without fundamentally changing their chemical structure. Their behavior arises from reversible changes in molecular mobility: heat weakens intermolecular interactions and permits flow, while cooling restores rigidity; unlike thermosetting plastics, they can often be remelted and reprocessed. In biology, thermoplastics such as polystyrene, polycarbonate, polypropylene, and thermoplastic elastomers support laboratory consumables, microfluidic devices, diagnostic platforms, and tissue-engineering scaffolds. Their tunable stiffness, transparency, chemical resistance, and manufacturability influence cell culture, sample handling, and the design of biomedical research tools.

Thermoplastic Materials - Related Videos

Research

JoVE Journal - Biology

Fabrication of the Thermoplastic Microfluidic Channels

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2008

Here we demonstrate how to fabricate thermoplastic microfluidic chips using hot embossing and heat sealing. Then we demonstrate how to use in situ light directed surface grafting and polymerization through the sealed chip to form the composite solid phase columns.

Three-dimensional Printing of Thermoplastic Materials to Create Automated Syringe Pumps with Feedback Control for Microfluidic Applications

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Cited by 3 •

2018

Here we present a protocol to construct a pressure-controlled syringe pump to be used in microfluidic applications. This syringe pump is made from an additively manufactured body, off-the-shelf hardware, and open-source electronics. The resulting system is low-cost, straightforward to build, and delivers well-regulated fluid flow to enable rapid microfluidic research.

Ultrasonic Welding of Thermoplastic Composite Coupons for Mechanical Characterization of Welded Joints through Single Lap Shear Testing

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Cited by 4 •

2016

A straightforward procedure for ultrasonic welding of thermoplastic composite coupons for basic mechanical testing is described. Key characteristics of this ultrasonic welding process are the use of flat energy directors for simplified process preparation and the use of process data for the fast definition of optimum processing conditions.

Research

JoVE Journal - Engineering
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Multi-material Ceramic-Based Components – Additive Manufacturing of Black-and-white Zirconia Components by Thermoplastic 3D-Printing (CerAM - T3DP)

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Cited by 26 •

2019

Here we describe a protocol for additively manufacturing black-and-white zirconia components by Thermoplastic 3D-Printing (CerAM - T3DP) and co-sintering defect-free.

Education

JoVE Science Education - Engineering

Material Constants

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2023

Source: Roberto Leon, Department of Civil and Environmental Engineering, Virginia Tech, Blacksburg, VA In contrast to the production of cars or toasters, where millions of identical copies are made and extensive prototype testing is possible, each civil engineering structure is unique and very expensive to reproduce (Fig.1). Therefore, civil engineers must extensively rely on analytical modeling to design their structures. These models are simplified abstractions of reality and are used to...

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