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This paper introduced the simple synthesis process of self-cleaning coating with fog-resistance property using hydrophobic polydimethylsiloxane (PDMS) polymer and nano-calcium carbonate (nano-CaCO₃) and titanium dioxide (TiO₂).

The synthesis method of PDMS/nano-CaCO₃-TiO₂ is based on sol-gel process. The crosslinking between PDMS and nanoparticles is driven by the covalent bond at temperature of 50°C. The 3-Aminopropyltriethoxysilane is used as binder for nanoparticles attachment in polymer matrix. Two fabrication methods are used, which are dip- and spray-coating methods.

The prepared coated glass fulfilled the requirement of standard self-cleaning and fog-resistance performance. For the self-cleaning test BS EN 1096-5:2016, the coated glasses exhibited the dust haze value around 20%–25% at tilt angle of 10°. For the antifog test, the coated glasses showed the fog haze value were below 2% and the gloss value were above 85%. The obtained results completely achieved the standard antifog value ASTM F659-06 protocol.

Findings will provide an infrastructure support for the building glass to enhance building’s energy efficiency, cleaning performance and friendly environment.

This study proposed the simple synthesis method using hydrophobic polymer and nano-CaCO₃ and nano-TiO₂, which can achieve optimum self-cleaning property at low tilt angle and fog-resistance performance for building glass.

The research findings have high potential for building company, cleaning building company and government sector. The proposed project capable to reduces the energy consumption about 20% per annum due to labor cost, time-consuming and safety during manual cleaning.

The novel method to develop self-cleaning coating with fog-resistance using simple synthesis process and fabrication method for building glass application.

This study investigates the influence of consumption values on green Fast-Moving Consumer Goods (FMCG) purchase behaviour in the context of green household cleaning products in the Western Province of Sri Lanka.

We used the survey strategy and 326 effective responses as the sample of this study.

Our findings reveal that specific consumption values, specifically functional, conditional and epistemic values, significantly impact green FMCG purchase behavior towards green household cleaning products. However, social and emotional values did not substantially influence this behavior.

The results of our study suggest practical implications for green FMCG marketers aiming to boost consumer adoption of green household cleaning products in Sri Lanka. To achieve this, marketers should focus on enhancing consumer value perceptions and strategically emphasize the consumption values consumers prioritize. Green FMCG marketers have a competitive advantage in the Sri Lankan market by doing so.

This research addresses a notable gap in the literature concerning green FMCG purchase behavior related to green household cleaning products within international and local contexts. Furthermore, this study distinguishes itself by adopting the Theory of Consumption Values as its foundational theory, offering fresh insights compared to previous research employing alternate theories, such as the Theory of Planned Behavior and the Theory of Reasoned Action, to examine similar phenomena.

This paper aims to design the nano-titanium dioxide (TiO₂) coating system which has superhydrophilic property, self-cleaning mechanism and antifog property as well as strong adhesion on glass substrate.

Two hydrophilic materials have been used such as TiO₂ nanoparticles as fillers and hydrophilic copolymer, Pluronic F-127 by using simple sol–gel approach. The prepared solution was applied onto glass through dip- and spray-coating techniques and then left for drying at ambient temperature.

The nano-TiO₂ superhydrophilic coating has achieved the water contact angle of 4.9° ± 0.5°. The superhydrophilic coating showed great self-cleaning effect against concentrated syrup and methylene blue where thin layer of water washes the dirt contaminants away. The nano-TiO₂ coating exhibits great antifog performance that maintains high transparency of around 89% when the coated glass is placed above hot-fog vapor for 10 min. The fog droplets were condensed into water film which allowed the transmission of light through the glass. The strong adhesion of coated glass shows no total failure at scratch profile when impacted with scratch load of 500, 800 and 1,200 mN.

Findings will be useful in the development of self-cleaning superhydrophilic coating that is applicable on building glass and photovoltaic panel.

The developed nano-TiO₂ coating is developed by the combination of hydrophilic organic copolymer–inorganic TiO₂ network to achieve great superhydrophilic property, optimum self-cleaning ability and supreme antifog performance.

The findings will be useful for residents in building glass window where the application will reduce dust accumulation and keep the glass clean for longer period.

The synthesis of nano-TiO₂ superhydrophilic coating which can be sprayed on large glass panel and cured at ambient temperature.

The main aim of this study is to study the effect of alkyl dimethyl benzyl ammonium chloride on removing stains, yellowness and harmful metal ions on historical printed paper, as well as the effect of this cleaner on optical and chemical properties of treated paper.

The assessments after and before treatment were carried out using digital microscopy, infrared spectroscopy (FTIR), pH measurement, color change and finally scanning electron microscopy.

The results showed that the concentrations used under study (1% and 3%) cleaned the paper efficiently without any observed effect on the chemical composition of cellulose, which was confirmed by IR spectra. The most stains that completely disappeared were the soil spots, also the pH values had improved significantly after treatment, which confirms that the detergent is effective in neutralizing the acidity of cellulose. Moreover, the color change revealed an increase in the chromatic lightness of the paper after treatment, which agreed with the results of the scanning electron microscopy examination, as the paper appeared free of dirt, and the fibers and bundles became more cohesive.

To the best of the authors’ knowledge, this study is a unique study, as there is no previous literature that has indicated the use of the effect of alkyl dimethyl benzyl ammonium chloride washing treatments for printed historical paper, as it was limited only to making disinfection materials and water purification products.

This photovoice study aims to explore how cleaners experience dirty and invisible work in the workplace.

This research is twofold. The authors first used the photovoice technique, which is one of the visual data collection techniques, to elaborate on the phenomena. The data were obtained with the participation of seven people (four women and three men) from building cleaners working at two public universities in Turkey. Three photographs were requested from each participant and selected nine photographs were described and analyzed among the collected 21 photographs. In addition to photovoice research, five interviews gave insight into the cleaners’ experiences in the second stage of the study.

This research revealed that participating cleaners experienced invisible dirty work and they felt undervalued, despised, treated as “second class/low-level people” and stigmatized.

This study recommends that university administrations defend the rights and dignity of cleaners at work, provide services to support their inclusion and increase staff awareness.

This study sheds light into an understudied area which is the building cleaners’ invisible and dirty work experiences and how that impacts their lives via a photovoice research.

Titanium(IV) oxide nanoparticles (TiO₂ NP) were deposited to cotton denim fabrics using a self-crosslinking acrylate – a polymer dispersion to extend the lifetime of the products. This study aims to determine the optimum conditions to increase abrasion resistance, to provide self-cleaning properties of denim fabrics and to examine the effects of these applications on other physical properties.

The denim samples were first treated with nonionic surfactant to increase their wettability. Three different amounts of the polymer dispersion and two different pH levels were selected for the experimental design. The finishing process was applied to the fabrics with pad-dry-cure method.

The presence of the coatings and the adhesion of TiO₂ NPs to the surfaces were confirmed by scanning electron microscope and Fourier transform infrared spectroscopy analysis. It was ascertained that the most appropriate self-crosslinking acrylate amount and ambient pH level is 10 mL and “2”, respectively, for providing increased abrasion resistance (2,78%) and enhanced self-cleaning properties (363,4%) in the denim samples. The coating reduced the air permeability and softness of the denim samples. Differential scanning calorimetry and thermogravimetry analysis results showed that the treatments increased the crystallization temperatures and melting enthalpy values of the denim samples. Based on the thermal test results, it is clear that mass loss of the denim samples at 370°C decreased as the amount of self-crosslinking acrylate increased (at pH 3).

This study helped us to find out optimum amount of self-crosslinking acrylate and proper pH level for enhanced self-cleaning and abrasion strength on denim fabrics. With this finishing process, an environmentally friendly and long-life denim fabric was designed.

Providing student housing designed to support students living with a disability is a global challenge. This study assesses buildings' physical health condition systems and drivers of physical health condition effects on students living with disability (SWD) in purpose-built university housing in Ghana.

The study used quantitative design and methods based on the theory of supportive design premises. Using the partial least square structural equation model, a survey of 301 students living with a physical disability, mild visual disability and mild hearing disability was collected in 225 student housings.

The study found that insect control and cleaning services are a priority in off-campus building design and management and directly positively affected the sense of control and physical health of SWD. The nature of lightning systems, noise and thermal comfort directly negatively affected SWD disability learning and discomfort.

Reviewing and enforcing student housing design drawings at the preliminary development stage by university management is critical. More broadly, physical health systems that control cleaning, noise and thermal comfort are essential for SWD health in student housing.

Studies on all-inclusive building designs have consistently focused on lecture theaters and libraries with limited attention on the physical health condition systems in student housing that support the quality healthcare of university campuses. Research on physical health condition systems in student housing is significant for all-inclusiveness and student housing management.

After completion of the case study, the students will be able to identify and discuss competition using Porter’s five forces, analyse and understand the enablers and challenges that impacted Rocky Brands’ growth and recommend a solution in relation to Rocky Brands’ growth strategy.

This case study investigates Rocky Brands, a South African manufacturer and distributor of cleaning products in the retail market. The case was set in November 2022 and highlights the important events ranging from the company’s founding in 2011 up until 2022. This case aims to study strategy in the South African fast moving consumer goods industry. At the time of writing the case study, Rocky Brands was operating across South Africa, with their main manufacturing warehouse in Johannesburg and a subsidiary manufacturing warehouse in Durban. They were changing the Durban warehouse to a distribution warehouse, as they planned to manufacture primarily from a bigger warehouse in Johannesburg. Rishav Juglall, the main protagonist, is the founder and managing director of Rocky Brands. Rocky Brands imports and redistributes several of the brands that the company sells, including Weiman’s, Wright’s and Goo Gone. They also manufacture their own line of products in South Africa under the Oakmont brand. Juglall acknowledges that their sales and revenue have grown yearly, but they have recently saturated the market and reached a plateau. Juglall needs to determine whether he should diversify into Africa, expand his product range or enter the market for private label cleaning products.

The case study’s primary focus is on strategy in an emerging market. This case study is suited to undergraduate students studying Porter’s five competitive forces, SWOT analysis (see teaching note exhibit) or the Ansoff matrix in the fields of strategy, marketing or macroeconomics. This case study can be taught in courses such as decision-making, environment of business, leadership or strategic implementation. The case study will teach students how to apply the frameworks to a business and assist students in determining which option is best for the business.

Teaching notes are available for educators only.

CSS 3: Entrepreneurship.

This case study outlines the strategic and organisational issues faced by an entrepreneurial firm operating in an emerging economy. This case study has been written to equip students with how entrepreneurs can overcome certain barriers and use technology to achieve product–market fit, taking the Indian laundry sector as an example. The following are the key learnings for the case: start-ups need to continuously assess the product–market fit to organise a highly unorganised sector; market entry and expansion modes require proper evaluation of available entry and expansion modes before pursual; franchising decisions require firm-specific and location-specific considerations; and careful consideration given to celebrity endorsement will result in increased sales.

The Indian laundry market was a highly unorganised market and presented an untapped opportunity. While the market opportunity was enormous, the existing solutions comprised local vendors that may not provide end-to-end services (washing, ironing, etc.). The case study described how a young entrepreneur, Arunabh Sinha, overcame certain challenges to achieve a product–market fit for metro cities and later expanded to Tier 2 and Tier 3 cities in India as well. However, the challenges remained, as the firm expanded by using a franchise model, and other modes of business were required to be evaluated as well.

The case study is suitable for students pursuing MBA courses in marketing, service marketing and entrepreneurship development.

Teaching notes are available for educators only.

CSS3: Entrepreneurship.