Flow-induced polymer crystallization under pressure and its engineering application in “structuring” polymer processing

GJ Zhong, SG Yang, J Lei, ZM Li - Macromolecules, 2024 - ACS Publications
Polymer processing is an essential step in achieving the desired shape and properties of
polymer parts that are being broadly used in areas from packaging to aerospace. However …

High-throughput in situ characterization of polymer crystallization under an intense flow, high pressure, and cooling gradient during injection molding

J Yin, LF Deng, GQ Ma, FY Wu, JZ Xu, X Gao… - …, 2023 - ACS Publications
Injection molding is a polymer-processing method widely used, which consumes about one-
third of global plastics and produces 80% of plastic parts. However, it is still challenging to in …

Mold temperature-and molar mass-dependent structural formation in micro-injection molding of isotactic polypropylene

X Zhao, T Liao, X Yang, P Coates, B Whiteside… - Polymer, 2022 - Elsevier
The structural formation and development of isotactic polypropylene (iPP) upon the micro-
injection molding process was investigated at different mold temperatures and molecular …

Recent developments of in-situ process and in-line quality monitoring in injection molding using intelligent sensors

S Shin, K Baek, J Oh, YB Kim, MD Kim, H So - Sensors and Actuators A …, 2025 - Elsevier
Advanced sensor-system-integrated injection molding is a promising technology that can
overcome long-lasting problems in the injection molding industry, improve product quality …

Flash Flow-Induced Crystallization of Poly(l-lactide) under Elevated Pressure during Industrial-Scale Injection Molding Revealed by Time-Resolved Synchrotron X …

J Yin, J Zhang, ZY Chen, LF Deng, DZ Jia, H Lin… - …, 2024 - ACS Publications
Poly (l-lactide)(PLLA) is a promising biodegradable alternative to petroleum-based plastics,
but it exhibits slow crystallization kinetics. Understanding flow-induced crystallization under …

In-situ synchrotron X-ray investigating crystallization of isotactic polypropylene with β-nucleating agent during injection molding

LF Deng, J Yin, J Zhang, ZY Chen, H Lin, JZ Xu… - Polymer, 2024 - Elsevier
The coupling effects of mold temperature and packing pressure fields on structure evolution
of isotactic polypropylene with β-nucleating agent (iPP/β) during injection molding were …

Molecular dynamics simulations of stretch-induced crystal changes in crystallized polyethylene/carbon nanotubes nanocomposites

YH Zhou, J Yang, ZP Zhou, TF Hao, YJ Nie - Chinese Journal of Polymer …, 2023 - Springer
Understanding deformation mechanisms in semi-crystalline polymers during stretching is
useful for guiding the processing of high-performance polymer products. In the current work …

Visualization and monitoring of the injection molding process using ultrasonic phased array

K Ji, R Gao, H Chen, J Fu, P Zhao - Journal of Materials Processing …, 2024 - Elsevier
Injection molding is a significant means of producing high-quality plastic parts. In the
injection molding process, the microstructure of the product is directly determined by two …

The crystallization behavior regulating nature of hydrogen bonds interaction on polyamide 6, 6 by poly (vinyl pyrrolidone)

Y Liu, L Peng, JL Lin, Y Zhou, DJ Wang… - Chinese Journal of …, 2023 - Springer
The crystallization behavior of polyamide 6, 6 (PA66) under complex flow field is of great
importance for its final mechanical properties. Poly (vinyl pyrrolidone)(PVP) was applied as …

[HTML][HTML] Evaluating the injection moulding of plastic parts using in situ Time-Resolved Small-Angle X-ray Scattering Techniques

AA Costa, F Gameiro, A Potêncio, DP Silva, P Carreira… - Polymers, 2022 - mdpi.com
In this study, we describe the design and fabrication of an industrial injection moulding
system that can be mounted and used on the NCD-SWEET small-angle X-ray scattering …