Development of Biodegradable Fiber-Based Bags for Sustainable Plant Nurture

About the Project

The need for environmentally friendly and sustainable solutions to combat plastic pollution has never been more critical. Plastics, particularly single-use plastic bags, have had a detrimental impact on our ecosystems and contribute to environmental degradation. In response to this challenge, this Ph.D. project aims to develop biodegradable fibrous bags designed for nurturing plants, thus contributing to a more sustainable and greener future.

The project will primarily focus on the utilization of Polyhydroxybutyrate (PHB) and related biodegradable polymers to create fiber-based materials. PHB is a biodegradable thermoplastic polymer produced by various microorganisms and offers excellent biodegradability properties. By exploring PHB blends and composites, we aim to enhance the mechanical and degradation properties of the materials.

We will conduct comprehensive studies to evaluate the biodegradability of these fiber-based materials under various environmental conditions, such as soil, water, and compost. Understanding the degradation kinetics and environmental factors influencing biodegradation is crucial in ensuring the eco-friendliness of these bags. The project will include the design, production, and optimization of fiber-based bags suitable for nurturing plants. These bags will be engineered to provide essential support for plant growth, including moisture retention, breathability, and structural integrity.

By focusing on the development of biodegradable fiber-based bags, this project aligns with the broader sustainability goals of reducing plastic waste and promoting circular economies. These bags will offer a sustainable alternative to traditional plastic planters and nursery pots, addressing the issue of plastic pollution and providing a solution that benefits both the environment and agriculture.

The research methodology will involve a combination of material science, polymer blending, biodegradation testing, and plant growth studies. Various techniques such as fiber spinning, melt extrusion, compounding, and biodegradability assessment under controlled conditions will be utilized to achieve the project goals. The optimisation of blending conditions, ratios and processing conditions and the rheological-fibre spinnability will be taken into account.

This Ph.D. project is a proactive step toward addressing the environmental challenges posed by single-use plastics. It offers a sustainable solution for nurturing plants and aligns with the global push for eco-friendly alternatives. By developing biodegradable fiber-based bags, this research aims to contribute to a greener and more sustainable future while promoting circular economy principles in the agriculture and horticulture sectors.

Academic qualifications

First degree (minimum 2:1 classification) in Material Engineering, Polymer Science, Mechanical Engineering, or Chemical Engineering

English language requirement

IELTS score must be at least 6.5 (with not less than 6.0 in each of the four components). Other, equivalent qualifications will be accepted.

Subject knowledge:

• Materials
• Polymers
• Biodegradable Polymers

Essential attributes:

• The candidate should have a solid academic foundation with a bachelor's and preferably a master's degree in a related field, such as materials science, polymer chemistry, environmental science, or a closely related discipline. Understanding of polymer processing techniques such as electrospinning, melt extrusion, and rheology of the polymers is a plus.
• Strong analytical and problem-solving skills are crucial for conducting research, optimizing materials, and addressing biodegradation challenges.

Desirable attributes:

• A basic understanding of biodegradable polymers and related materials science concepts can be advantageous. Experience in biodegradation analysis of the polymer is desirable.

APPLICATION CHECKLIST

• Completed application form
• CV
• 2 academic references, using the Postgraduate Educational Reference Form (download)
• Research project outline of 2 pages (list of references excluded). The outline may provide details about
  1. Background and motivation of the project. The motivation, explaining the importance of the project, should be supported also by relevant literature. You can also discuss the applications you expect for the project results.
  2. Research questions or objectives.
  3. Methodology: types of data to be used, approach to data collection, and data analysis methods.
  4. List of references.
• The outline must be created solely by the applicant. Supervisors can only offer general discussions about the project idea without providing any additional support.
• Statement no longer than 1 page describing your motivations and fit with the project.
• Evidence of proficiency in English (if appropriate)

For informal enquiries about this PhD project, please contact R.Salehiyan@napier.ac.uk

PhD Start Date: October 2026

Application link: https://evision.napier.ac.uk/si/sits.urd/run/siw_sso.go?mP9MDnTs1Rwm8ftb3WVhDhXtraMQwXSUMdHC9wIc34es5bJqXf