The purpose of this paper is to determine the impacts of impregnation with Imersol Aqua to red colour tone (RCT) of some softwood materials and varnishes.
Abstract
Purpose
The purpose of this paper is to determine the impacts of impregnation with Imersol Aqua to red colour tone (RCT) of some softwood materials and varnishes.
Design/methodology/approach
For this purpose, test samples prepared from Scots pine (Pinus sylvestris Lipsky), Oriental spruce (Picea orientalis Link) and Uludağ fir (Abies Bornmülleriana Mattf.), which met the requirements of ASTM D 358, were impregnated with Imersol Aqua by short‐term, medium‐term and long‐term immersion techniques in accordance with ASTM D 1413 and producer's definition. After impregnation, surfaces were coated by synthetic, acrylic, water‐based and polyurathane varnishes in accordance with ASTM D 3023 standards. RCT values of samples after varnishing process were determined in accordance with ASTM D 2244.
Findings
It was found that RCT was the highest in Scots pine, long‐term dipping and synthetic varnish, and the lowest in Uludağ fir, short‐term dipping and water‐borne varnish. Considering the interaction of wood type, period of impregnation and type of varnish, RCT was the highest in pine, short term of dipping and acrylic varnish and the lowest in Oriental spruce, short term of dipping and synthetic varnish. So, impregnation process, impregnation period and varnishes applied during tests showed increasing impact for RCT value of Scots pine, Oriental spruce and Uludağ fir woods. This result must be taken into care in manufacture of wooden furniture and construction elements where RCT is important.
Research limitations/implications
The endurance of the protective coating (such as varnish) to external effects is limited and the lifetime of the coating is determined by the type and the severity of the effects to which it is exposed.
Practical implications
The impact of varnish type, wood material type and impregnation chemical on RCT can determine the usefulness of the massive wood materials where RCT values are important.
Originality/value
It is conjectured that especially for the manufacturers and consumers in the furniture, construction and decoration sector, the data obtained in this study will contribute to the making up of the deficiencies in the understanding of the subject.
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Hakan Keskin, Musa Atar, Süleyman Korkut and Derya Sevim Korkut
The purpose of this paper is to determine the effect of Imersol Aqua impregnation of Scotch pine, Oriental spruce, and Uludağ fir on the surface adhesion strength of various types…
Abstract
Purpose
The purpose of this paper is to determine the effect of Imersol Aqua impregnation of Scotch pine, Oriental spruce, and Uludağ fir on the surface adhesion strength of various types of varnishes. The finding obtained would benefit the manufacturers of building materials and furniture, where the surface adhesion strength of water‐based varnishes is a concern.
Design/methodology/approach
For this purpose, test samples were prepared from Scotch pine, Oriental spruce, and Uludağ fir woods that met the requirements of ASTM D 358. The samples were impregnated with Imersol Aqua using short‐, medium‐, and long‐term immersion techniques according to ASTM D 1413 and the manufacturer's instructions. After impregnation, surfaces were coated with synthetic, acrylic, polyurethane, and water‐based varnishes in accordance with ASTM D 3023 standards. After the varnishing process, the adhesion strength of the samples was determined in accordance with ASTM D 4541.
Findings
It was also found that among the wood samples, the adhesion strength was highest in Scotch pine and lowest in Uludağ fir. The synthetic varnish produced the highest adhesion strength, whereas polyurethane and acrylic varnishes had the lowest adhesion strength. The adhesion strength was highest after medium‐term immersion and lowest after long‐term dipping. The highest adhesion strength (4.299 MPa) was produced by a combination of Scotch pine, medium‐duration immersion, and the use of a wood‐based varnish. The lowest adhesion strength (2.090 MPa) resulted from the combination of Uludağ fir, long‐term immersion, and a water‐based varnish.
Research limitations/implications
Impregnating woods using materials with appropriate water repellent, biotic, and abiotic effects before the application of varnishes and paints is important for long‐term protection against photochemical degradation, dimensional changes, biological factors, and fire.
Practical implications
The effect of a varnish on surface adhesion strength can determine the usefulness of the varnish.
Originality/value
Improving surface adhesion of some varnishes via medium‐term impregnation with Imersol Aqua impregnation should be used on Scotch pine, Oriental spruce, and Uludağ fir woods which could be used in the manufacturing of building materials and furniture, where the surface adhesion strength of water‐based varnishes is a concern.
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This study aims to investigate the practice of bay’ ‘inah contract in personal and home financing products by some Islamic Finance Institutions (IFIs) and examine the differences…
Abstract
Purpose
This study aims to investigate the practice of bay’ ‘inah contract in personal and home financing products by some Islamic Finance Institutions (IFIs) and examine the differences in the selection of contracts in banking products amongst IFIs mainly involving personal financing. The study will also propose a solution to the problem of differences and simultaneously standardise personal financing contracts in Malaysia.
Design/methodology/approach
The methodology of this study is qualitative, in which the data are collected through library research and field studies. The library research is done by examining books of usul al-fiqh (principles of Islamic jurisprudence), mura’aht al-khilaf, maqasid shariah (objectives of Islamic law) articles, statutes and related circulars, while field studies are conducted in an unstructured interview method with some members of Shariah Advisory Council (SAC) and academicians from Bank Negara Malaysia (BNM), IFIs and public university.
Findings
The findings show that there is a difference in views amongst SAC members in IFIs on bay’ ‘inah contract that effects the differences in the execution of such contract in banking applications. The study found that the bay’ ‘inah contract was non Shariah (Islamic law) compliant based on Shariah’s arguments and the opinion of the majority of past and present Islamic scholars. The study found that the BNM’s SAC did not allow the bay’ ‘inah contract to be practiced in personal and home financing products. Hence, this study proposes standardisation steps based on differences in the problems studied. The study also suggested that the SAC of BNM make improvements and updates on its solution regarding the bay’ ‘inah contract so that it is not misunderstood especially amongst IFIs.
Research limitations/implications
The study is only looking at one case study, which is the bay’ ‘inah contract practiced by the IFIs in Malaysia.
Practical implications
This study proposes the standardisation of personal financing products practiced by the IFIs. The results of this study can reduce Sharīʿah non-compliance products in the market. The results of this study have gained a deep understanding of the solution of bay’ ‘inah contract made by the SAC of BNM. The findings also reduce the conflict between Shariah scholars locally and internationally and can restore the image of Islamic banking in Malaysia from engaging with controversy products or contracts.
Social implications
The confidence of the public in Islamic banking is increasing as there is no contractual engagement with serious controversial issues and contracts similar to the concept of riba and hilah (trick) that is prohibited by Islamic law in IFIs.
Originality/value
This study analyses the differences of fatwa (a ruling on the point of Islamic law) about bay’ ‘inah contract decided by some SACs of IFI based on the discipline of usul al-fiqh. The study found that the bay’ ‘inah contract is not allowed by Islamic law. The study has proposed the standardisation of the fatwa differences based on the concept of mura’aht al-khilaf and the concept of standardisation in Islamic finance and to standardise personal financing products amongst IFIs in Malaysia.
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Md. Abdul Alim, Kim-Lim Tan, Teck Weng Jee, Boo Ho Voon, Md. Julhaz Hossain and Md. Uzzal Mia
This paper focuses on the factors that affect entrepreneurs' performance in small and medium enterprises (SMEs) in the context of a developing nation. Despite the advances in this…
Abstract
Purpose
This paper focuses on the factors that affect entrepreneurs' performance in small and medium enterprises (SMEs) in the context of a developing nation. Despite the advances in this literature, examination of opportunity recognition in the same model with personal factors and environmental factors on entrepreneurs' performance is lacking.
Design/methodology/approach
A quantitative survey was carried out and the data sample of 198 SMEs entrepreneurs in Bangladesh was collected using quota sampling technique. Partial least squares-based structural equation modeling (PLS-SEM) was employed to test the hypothesized relationships.
Findings
The study found that the direct effect of personal and environmental factors significantly influences entrepreneurs' performance and opportunity recognition, and opportunity recognition significantly influences entrepreneurs' performance. The results further indicated that opportunity recognition mediates the relationships between environmental factors and entrepreneurs' performance, but not on the relationships between personal factors and entrepreneurs' performance.
Practical implications
The findings from the study guide SMEs entrepreneurs' performance by utilizing the opportunity recognition more efficiently and effectively. The study further enhances practitioners' understanding of the drivers and motivations of entrepreneurs within a developing nation context.
Originality/value
Although some previous studies already exist that discuss SMEs entrepreneurs' performance, there have been few studies focusing on opportunity recognition and mediation role of opportunity recognition, and far lesser in the context of a developing nation.