This Industrial Doctoral Centre (IDC) addresses a national need by building on the strengths of the existing EngD in Micro- and NanoMaterials and Technologies (MiNMaT) and the University of Surrey's excellent track record of working with industry to provide a challenging, innovative and transformative research environment in materials science and engineering. Following the proven existing pattern, each research engineer (RE) will undertake their research with their sponsor at their sponsor's premises. The commitment of potential sponsors is demonstrated in the significant number of accompanying letters of support. Taking place over all four years, carefully integrated intensive short courses (normally one week duration) form the taught component of the EngD. These courses build on each other and augment the research. By using a core set of courses, graduates from a number of physical science/engineering disciplines can acquire the necessary background in materials. This is essential as there are insufficient numbers of students who have studied materials at undergraduate level. The research focus of this IDC will be the solution of academically challenging and industrially relevant processing-microstructure-property relationship problems, which are the corner-stones of the discipline. This will be possible because REs will interact with internationally leading academics and have access to a suite of state-of-the-art characterisation instrumentation, enabling them to obtain extensive hands on experience. As materials features as one of the University's seven research priority areas, there is strong institutional support as demonstrated in the Vice Chancellor's supporting letter, which pledges 2.07M of new money for this IDC. As quality and excellence run through all aspects of this IDC, those graduating with an EngD in MiNMaT will be the leaders and innovators of tomorrow with the confidence, knowledge and research expertise to tackle the most challenging problems to keep UK industry ahead of its competitors.

Chemical technologies underpin almost every aspect of our lives, from the energy we use to the materials we rely on and the medications we take. The UK chemical industry generates £73.3 billion revenue and employs 161,000 highly skilled workers. It is highly diverse (therefore resilient) with SMEs and microbusinesses making up a remarkable 96% of the sector. Today's global chemicals industry is responsible for 10% of greenhouse gas (GHG) emissions and consumes 20% of oil and gas as carbon feedstock to make products. Decarbonisation (defossilisation) of the chemicals sector is, therefore, urgently required, but to do so presents major technical and societal challenges. New sustainable chemical technologies, enabled by new synthesis, catalysis, reaction engineering, digitalisation and sustainability assessment, are needed. In order to ensure that the UK develops a resource efficient, resilient and sustainable economy underpinned by chemical manufacturing, developments in chemical technologies must be closely informed by whole systems approaches to measure and minimise environmental footprints, understand supply chains and assess economic and technological viability, using techniques such as life cycle assessment and material flow analysis. Lack of access to experts in science and engineering with a holistic understanding of sustainable systems is widely and publicly recognised as a significant risk. It is therefore extremely timely to establish a new EPSRC CDT in Sustainable Chemical Technologies that fully integrates a whole systems approach to training and world leading research in an innovation-driven context. This CDT will train the next generation of leaders in sustainable chemical technologies with new skills to address the growing demand for highly skilled PhD graduates with the ability to develop and transfer sustainable practices into industry and society. The new CDT will be a unique and vibrant focus of innovative doctoral training in the UK by taking full advantage of two exciting new developments at Bath. First, the CDT will be embedded in our new Institute for Sustainability (IfS) which has evolved from the internationally leading Centre for Sustainable and Circular Technologies (CSCT) and which fully integrates whole systems research and sustainable chemical technologies - two world-leading research groupings at Bath - under one banner. Second, the CDT will operate in close partnership with our recently established Swindon-based Innovation Centre for Applied Sustainable Technologies (iCAST, www.iCAST.org.uk) a £17M partnership for the rapid translation of university research to provide a dynamic innovation-focused context for PhD training in the region. Our fresh and dynamic approach has been co-created with key industrial, research, training and civic partners who have indicated co-investment of over £17M of support. This unique partnership will ensure that a new generation of highly skilled, entrepreneurial, innovative PhD graduates is nurtured to be the leaders of tomorrow's green industrial revolution in the UK.

Fibre-reinforced composites are finding increased usage in load-bearing structures in a variety of applications in marine, automotive and rail transport industries owing to their specific strength and stiffness properties. A serious problem with these composite materials, particularly glass-reinforced polymeric composites, which are the most prevalent in marine and other surface transport applications, is that they support combustion and in fire conditions burn, most often with heavy soot and smoke. Insulation can reduce the fire hazard, but does not eliminate it. Moreover the insulation adds weight and cost to apply.The combustible part of the composite is organic resin matrix. Most common method of fire retarding the resin and hence, the overall composite is the physical and chemical modification of the resin by either adding fire retardant element in the polymer backbone or using fire retardant additives in the resin. For polyester or vinyl ester resins, usually halogenated chemicals are used. While the presence of halogen significantly reduces the flammability of the resin, due to increasing environmental awareness and strict environmental legislations thereof, halogen - containing fire retardants are being strictly scrutinised. When non-halogen flame retardants are used, invariably they are required in large quantities (>30% w/w) to achieve required level of fire retardancy. The high concentrations of additives however, can reduce the mechanical properties of the composite. Moreover, they also affect resin's processability for resin transfer moulding technique, commonly used for these types of composites. We propose here a step change in the resin matrix by reducing the combustibility of vinyl ester and/or polyester resin by co-blending with inherently fire retardant resins, such as phenolic or melamine-formaldehyde resin.This proposal is a joint attempt by 'Fire Materials' group at the University of Bolton and 'Fluid Structure Interactions Research Group (FSIRG) at the University of Southampton to develop, construct, test and model novel, fire-retardant composites, initially for marine applications. The principal focus is to develop a modified polymeric matrix to reduce the combustibility of the vinyl ester or polyester resins by blending with appropriately modified phenolic and melamine resins, which will increase the thermal stability and char-forming capacity of the matrix. The physical and chemical properties of the modified resin will be optimised to enable: (a) the resin to be infusible for moulding leading to good processing ability: (b) low temperature cure capability to maximize compatibility and bonding with glass fibres; and (c) up-scaling to produce large laminates and structures. It is proposed that two different approaches will be taken: the first one 'Material' based, mainly by Bolton, and the other 'Structure' based, to which both Bolton and Southampton will contribute. The specific tasks include resin blending, chemical / physical modification of the resin, process modelling and resin infusion, composite laminate preparation and flammability evaluation. The composite laminates and structures thus produced are expected to comply with the fire performance requirements contained in the International Convention for the Safety of Life at Sea (SOLAS) as `IMO/HSC Code (Code of Safety for High Speed craft of the International Maritime Organisation). Additionally, the structural performance of the composite would be expected to be comparable with current glass/vinyl ester. We also propose to conduct fire performance modelling, mechanical characterisation and progressive damage analysis from a structural design viewpoint.We expect these composites to find applications also in other engineering arenas for which low-weight, thermally resistant and fire-retardant structures are increasingly being sought.

Advanced composite materials consist of reinforcement fibres, usually carbon or glass, embedded within a matrix, usually a polymer, providing a structural material. They are very attractive to a number of user sectors, in particular transportation due to their combination of low weight and excellent material properties which can be tailored to specific applications. Components are typically manufactured either by depositing fibres into a mould and then infusing with resin (liquid moulding) or by forming and consolidation of pre-impregnated fibres (prepreg processing). The current UK composites sector has a value of £1.5 billion and is projected to grow to over £4 billion by 2020, and to between £6 billion and £12 billion by 2030. This range depends on the ability of the industry to deliver structures at required volumes and quality levels demanded by its target applications. Much of this potential growth is associated with next generation single-aisle aircraft, light-weighting of vehicles to reduce fuel consumption, and large, lightweight and durable structures for renewable energy and civil infrastructure. The benefits of lightweight composites are clear, and growth in their use would have a significant impact on both the UK's climate change and infrastructure targets, in addition to a direct impact on the economy through jobs and exports. However the challenges that must be overcome to achieve this growth are significant. For example, BMW currently manufacture around 20,000 i3 vehicles per year with significant composites content. To replace mass produced vehicles this production volume would need to increase by up to 100-times. Airbus and Boeing each produce around 10 aircraft per month (A350 and 787 respectively) with high proportions of composite materials. The next generation single aisle aircraft are likely to require volumes of 60 per month. Production costs are high relative to those associated with other materials, and will need to reduce by an order of magnitude to enable such growth levels. The Future Composites Manufacturing Hub will enable a step change in manufacturing with advanced polymer composite materials. The Hub will be led by the University of Nottingham and University of Bristol; with initial research Spokes at Cranfield, Imperial College, Manchester and Southampton; Innovation Spokes at the National Composites Centre (NCC), Advanced Manufacturing Research Centre (AMRC), Manufacturing Technology Centre (MTC) and Warwick Manufacturing Group (WMG); and backed by 18 leading companies from the composites sector. Between the Hub, Spokes and industrial partners we will offer a minimum of £12.7 million in additional support to deliver our objectives. Building on the success of the EPSRC Centre for Innovative Manufacturing in Composites (CIMComp), the Hub will drive the development of automated manufacturing technologies that deliver components and structures for demanding applications, particularly in the aerospace, transportation, construction and energy sectors. Over a seven year period, the Hub will underpin the growth potential of the sector, by developing the underlying processing science and technology to enable Moore's law for composites: a doubling in production capability every two years. To achieve our vision we will address a number of research priorities, identified in collaboration with industry partners and the broader community, including: high rate deposition and rapid processing technologies; design for manufacture via validated simulation; manufacturing for multifunctional composites and integrated structures; inspection and in-process evaluation; recycling and re-use. Matching these priorities with UK capability, we have identified the following Grand Challenges, around which we will conduct a series of Feasibility Studies and Core Projects: -Enhance process robustness via understanding of process science -Develop high rate processing technologies for high quality structures

In our successful proposal in the Adventurous Manufacturing round 2 call, we proposed a scalable, inexpensive, commodity materials-based water-based reversible adhesive. This glue needed to be stable for periods of many months and easily applied by the end user. This was achieved and a UK patent was submitted (P340927GB) a year after the project start. The technology is extremely simple; we used emulsion polymerization to synthesize polymer nanoparticles. These were stabilized with polyelectrolytes, either physically adsorbed to, or polymerized from, the nanoparticles. Polyelectrolytes are polymers that are either positively (polycations) or negatively (polyanions) charged. This water-based emulsion forms a film, just like a paint. When a surface coated with a polyanion-stabilized emulsion is brought into contact with another surface coated with a polycation-stabilized emulsion there is good adhesion. This adhesion further improves when the films dry, and, unusually for a water-based adhesive, does not fail in moist and humid environments. However, as intended, the bond does fail in an acidic or alkaline environment. This creates a unique concept in adhesive technologies because the adhesion can be made to fail on demand, which is an important concept for recycling. Furthermore, this is neither a structural adhesive (based on covalent bonds) nor a pressure-sensitive adhesive, and is therefore an entirely new class of glue, which we deem an electrostatic adhesive. The purpose of this proposal is to develop the technology in the following ways: (i) increase the versatility of the technology by administering it as a spray rather than a paint; (ii) increase the speed of debonding by patterning the surface(s) or by reducing the pH difference from neutral at which bonding fails; (iii) developing fully environmentally friendly materials for use in the adhesive; and (iv) making the adhesive conducting so that it can be applied to e-waste, and, in particular, the recycling of printed circuit boards. As part of this fourth work package, the glue will also be adapted for thermal heat management tasks. Electronic components often reach elevated temperatures, and a glue with good thermal conduction that can adhere a heat sink and remain stable at temperatures of ~70 degrees C will be developed. A fifth work package will involve testing the electronic and thermal reversible glue in real-world environments. Some work on the first two of these work packages will be performed before the start of the project, and some work demonstrating the feasibility of an adhesive that is more environmentally friendly than the first formulations has already been performed, e.g., through the addition of epoxidized soybean oil to the formulations. The fourth and fifth work packages represent an entirely new departure for this technology. The challenges facing us are due to this being a disruptive (step-change) technology, and because it is difficult to convince manufacturers to adapt their processes, we need to adapt ours to work with current processes. This is certainly the case for the bottle-labelling industry, which we have initially targeted, and it may also be needed in other industries. By the end of the grant (September 2026), our new glue will be commercially viable for use in industries working in areas such as labelling and packaging, specialist parts (e.g., car manufacture), and electronics.