Patricia Dolez, PhD, PEng

Area of Study / Keywords

Textile Science Materials Engineering Protective Clothing

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About

My research is focused on protective clothing/ personal protective equipment (PPE) and industrial applications, as well as knowledge transfer to the next generation and the industry: it is rooted in an interdisciplinary approach that involves collaborations across multiple disciplines and partnerships with the industry and end-users. What motivates me is sharing my passion for innovation and team work.

Other activities

Co-Director, Commercialization, iSMART (smartnetworkcentre.ca)

Chair, Canadian Advisory Committee on ISO/TC 94/SC 13 (protective clothing)

Member of the Board of Directors, the Institute of Textile Science (www.textilesciences.com)

Member, Canadian Advisory Committee on ISO/TC229 (nanotechnologies)

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Research

Research interests: Protective clothing, Nanotechnologies, Smart textiles, Natural fibres, Recycled materials, Materials ageing

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Teaching

Teaching areas: Protective clothing, Nanotechnologies, Smart Textiles, Textile Science

Development of the research and training platform “Sustainable Innovation for Clothing, Textiles, and PPE: A Triadic Perspective”. It is aimed at enhancing knowledge; developing new tools, materials, designs and constructions; and providing training for end-users and the next generation of researchers in clothing, textiles, and Personal Protective Equipment (PPE). The ultimate goal is for technology to enhance the lives of people by improving wellbeing and providing protection and comfort. 

HECOL 470 - Advanced Materials for Protective Clothing

Students explore advanced materials for protective clothing. Resistance of textiles to mechanical, thermal, chemical, biological, and electrical hazards as well as questions of durability and comfort are discussed with an emphasis on current research. The course describes phenomena and mechanisms involved, presents appropriate materials and structures, and depicts the relevant test methods. Prerequisite: HECOL 370 or consent of instructor.

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HECOL 474 - Introduction to Nanotechnologies and Smart Textiles

Students explore opportunities offered by nanotechnologies and smart materials/structures as they relate to textile products. Mechanisms involved, materials used, fabrication processes, properties/performance obtained, and some examples of commercial applications are presented. Challenges encountered with these new technologies are also discussed. Prerequisite: HECOL 170 and 60 units; or consent of instructor.

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HECOL 570 - Advanced Materials for Protective Clothing

Students explore advanced materials for protective clothing. Resistance of textiles to mechanical, thermal, chemical, biological, and electrical hazards as well as questions of durability and comfort are discussed with an emphasis on current research. The course describes phenomena and mechanisms involved, presents appropriate materials and structures, and depicts the relevant test methods. Not to be taken if credit received for HECOL 470.

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HECOL 574 - Introduction to Nanotechnologies and Smart Textiles

Students explore opportunities offered by nanotechnologies and smart materials/structures as they relate to textile products. Mechanisms involved, materials used, fabrication processes, properties/performance obtained, and some examples of commercial applications are presented. Challenges encountered with these new technologies are also discussed. Prerequisite: consent of the instructor. Not to be taken if credit received for HECOL 474.

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Browse more courses taught by Patricia Dolez

This R&D program looks at establishing a made-in-Canada supply of regenerated cellulose fibres using Canadian sources of cellulose and the environmentally-friendly Lyocell process. It aims to determine the optimal characteristics of the sources of cellulose and parameters of the production process as well as the appropriate performance improvement technologies for regenerated cellulose fiber products through the Lyocell process for different applications. This project will pave the way to produce made-in-Canada environmentally friendly cellulose-based fibres for a wide range of products. It involves several companies along the product value chain, including Davey Textile Solutions, Mark's Work Wearhouse, TechFibre Industries, Plantae Technologies, Canadian Rockies Hemp Corporation, and General Recycled. 

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The COVID-19 pandemic has been a rude reminder of the difficulty in controlling the propagation of viruses. If protective clothing and masks currently used by medical personnel can protect them from being exposed, the contaminated protective equipment can still act as a vector for viruses and bacteria and lead to the contamination of other patients, other medical personnel and personal objects/family members. Self-decontaminating personal protective equipment could prevent this issue. 

Protective clothing neutralizing chemical and biological agents upon contact also offer an interesting strategy to avoid issues with filter materials getting clogged and toxic agents contaminating unprotected people nearby. The self-decontaminating membrane can even be breathable, increasing the protective clothing wearer's comfort.

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E-textiles have massive potentials to change the health care, safety, and protection industries due to their unique capability to sense physiological and environmental conditions, alert about a potential issue, and mitigate the change in conditions. However, the current e-textile industry is facing some limitations as universal testing and quality control standards are necessary further market grown.

This project aims to develop reliable, robust, and universal test methods to assess the efficiency, safety and durability of e-textiles.

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High performance materials and textile structures are used to manufacture protective clothing for people exposed to heat and flame, for instance firefighters and workers in the oil and gas industry. However, if the performance of the clothing is assessed in the new condition, the understanding of the effect of the various aging conditions (UV, heat, moisture, steam, abrasion, laundering, etc.) the materials will be exposed to during the lifetime of the clothing is still limited. In addition, the worker has no way to assess if the residual level of performance of his clothing is still sufficient to protect him for the hazards associated with his tasks. 

The objectives of the research are to gain a better understanding of the effect of aging conditions on the performance of protective clothing materials over time as well as develop predictive (using models) and indicative (using sensors) strategies to evaluate the residual performance of protective clothing as a result of use. 

Hoque, M. S., Dolez, P.I

Journal of Applied Polymer Science. 2024 April; 10.1002/app.55624

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Hoque, M. S., Johnson, T., de la Mata, P., Harynuk, J., Dolez, P. I.

Fibers and Polymers. 2024 April; 10.1007/s12221-024-00540-5

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Munevar-Ortiz L., Nychka J.A., Dolez P.I.

Journal of Applied Polymer Science. 2024 April; 10.1002/app.55548

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Yogesh Kumar, Mohammad Rezasefat, Sandro C. Amico, Andrea Manes, Patricia I. Dolez, James D. Hogan

Thin-Walled Structures. 2024 April; 10.1016/j.tws.2024.111611

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Josephine T. Bolaji, Patricia I. Dolez

Fibers. 2024 March; 10.3390/fib12040030

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Islam, Md. R., Gholamreza, F., Golovin, K., Dolez, P. I.

Journal of Testing and Evaluation. 2024 March; 52 (4) 10.1520/JTE20230614

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Saiful Hoque, Ankit Saha, Hyun‐Joong Chung, Patricia Dolez

Journal of Polymer Science. 2024 March; 10.1002/pol.20230950

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Laura Munevar‐Ortiz, John A. Nychka, Patricia I. Dolez

Polymer Composites. 2024 January; 10.1002/pc.27840

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Luka Morita, Shima Jalali, Abolfazl Vaheb, Rawan Elsersawy, Kunj Golwala, Asad Asad, Patricia I. Dolez, James D. Hogan, Mohammad Abu Hasan Khondoker, Dan Sameoto

Micromachines. 2023 December; 10.3390/mi14122227

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Lelia Lawson, Madison Ford, Md. Saiful Hoque, Wade Chute, David C. Bressler, Patricia I. Dolez

Applied Sciences. 2023 November; 10.3390/app132312759

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Jemma R. P. Forgie, Floriane Leclinche, Emilie Dréan, Patricia I. Dolez

Applied Sciences. 2023 November; 10.3390/app132212476

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Md Rashedul Islam, Kevin Golovin, Patricia I. Dolez

Textiles. 2023 September; 10.3390/textiles3040024

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Md. Saiful Hoque, Patricia I. Dolez

Journal of Applied Polymer Science. 2023 August; 10.1002/app.54255

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Ikra Iftekhar Shuvo, Justine Decaens, Patricia I Dolez

Flexible and Printed Electronics. 2023 June; 10.1088/2058-8585/accf6a

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Shroff A, Karolia A, Dolez PI

Handbook on Conservation of Museum Textiles. 2023 March; 2 10.1002/9781119983903.ch37

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Shuvo I. I., Dolez P I.

Functional and Technical Textiles. 2023 February; 10.1016/C2020-0-02578-8

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Lelia Lawson, Lauren M. Degenstein, Bronwyn Bates, Wade Chute, Dan King, Patricia I. Dolez

Sustainability. 2022 November; 10.3390/su142215337

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Josephine Taiye Bolaji, Patricia I. Dolez

Textiles. 2022 October; 10.3390/textiles2040032

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Farzan Gholamreza, Yang Su, Ruoyao Li, Anupama Vijaya Nadaraja, Robert Gathercole, Ri Li, Patricia I. Dolez, Kevin Golovin, René M. Rossi, Simon Annaheim, Abbas S. Milani

Materials. 2022 August; 10.3390/ma15165786

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Md. Saiful Hoque, Ankit Saha, Hyun‐Joong Chung, Patricia I. Dolez

Journal of Applied Polymer Science. 2022 August; 10.1002/app.52666

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Patricia I. Dolez, Sabrina Marsha, Rachel H. McQueen

Textiles. 2022 June; 10.3390/textiles2020020

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Christina Anna Braun, Seo Lin Nam, Aidee Paulina de la Mata, James Harynuk, Hyun‐Joong Chung, Patricia Isabelle Dolez

Journal of Applied Polymer Science. 2022 May; 10.1002/app.52183

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Munevar-Ortiz L., Batcheller J., Dolez P.I.

Journal of Testing and Evaluation. 2021 November; 10.1520/JTE20210357

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Cho C, Nam SL, de la Mata PA, Harynuk JJ, Elias A, Chung H-J, Dolez PI

J Appl Polym Sci. 2021 November; 10.1002/app.51955

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Dolez, PI

Sensors. 2021 September; 21 10.3390/s21186297

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Degenstein LM, Sameoto D, Hogan JD, Asad A, Dolez PI

Micromachines. 2021 June; 12 (7):773 (29p.) 10.3390/mi12070773

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Shuvo II, Decaens J, Lachapelle D, Dolez P I

Textiles for Functional Applications. 2021 March; 10.5772/intechopen.91596

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Dolez PI, Decaens J, Buns T, Lachapelle D, Vermeersch O.

IOP Conf. Series: Materials Science and Engineering. 2020 January; 827

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Dolez P, Malajati Y

Performance of Protective Clothing and Equipment: Innovative Solutions to Evolving Challenges. ASTM International. 2020 January; STP 1624

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Triki E, Dolez PI

J Text I. 2019 January;

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Wingert L, Cloutier Y, Hallé S, Bahloul B, Tessier D, Giraudel J-L, Dolez P, Tuduri L

J Occup Environ Hyg. 2019 January; 16 (8):592-606

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Weltrowskia M, Dolez PI

J Nanotechnol. 2019 January; 2019

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Cho C, Elias A, Batcheller J, Dolez P, Chung H-J

J Ind Text.. 2019 January; doi: 10.1177/ 1528083719869387

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Dolez PI

Nanomaterials-Based Coatings: Fundamentals and Applications, Nguyen-Tri, Rtimi, Ouellet Plamondon (Eds.), Elsevier. 2019 January;

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Dolez PI, Tomer NS, Malajati Y

J Appl Polym Sci.. 2018 January; 136

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Dolez P.I., Izquierdo V.

In Book: Advanced characterization and testing of textiles. Elsevier, Amsterdam, NL. 2017 January;

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Bourgès-Gastaud S., Dolez P., Blond E, Touze-Foltz N.

Minerals Engineering. 2017 January; 100

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Arfaoui M. A., Dolez P. I., Dubé M., David É.

Applied Surface Science. 2017 January; 397

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Dolez P.

In Book: Nano Engineering: Global Approaches to Health & Safety Issues, Elsevier, Amsterdam, NL. 2015 January;

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Vinches L., de Santa Barbara J., Hallé S., Dolez P., Wilkinson K. J.

International Journal of Theoretical and Applied Nanotechnology. 2013 January; 1 (2):1-16

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Nguyen C. T., Dolez P. I., Vu-Khanh T., Gauvin C., Lara J.

Plastics, Rubber and Composites. 2013 January; 42 (5):187-193

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Arrieta C., David E., Dolez P., Vu-Khanh T.

Polymer degradation and Stability. 2011 January; 96 (8):1411-1419

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