PERFORMANCES OF A POLYSILICON BYPRODUCT - SILICON TETRACHLORIDE - ON SWELLING AND TANNING PROCESS
Journal Title: Revista de Pielărie Încălţăminte - Year 2015, Vol 15, Issue 1
Abstract
Sodium silicate was prepared with a polysilicon byproduct-silicon tetrachloride. The swelling property of the sodium silicate was then investigated including proteoglycan removing ability, silicon absorptivity, relative weight and thickness increase. Meanwhile, a new process for cleaner wet blue preparation was carried out. Properties of the wet blue such as mechanical properties, thermal stability and surface color were tested following the standard method. Chrome distribution of the wet blue was investigated with an inductively coupled plasma (ICP). A scanning electron microscope (SEM) and a atomic force microscope (AFM) were also used to illustrate the histological features of the wet blue. Finally, environmental impact of both swelling and tanning process were studied through COD, chrome contention, total solids and turbidity test. The results showed that the swelling ability of these silicate agents was distinctly related with their modulus. The lower the modulus, the better the swelling ability was shown, in terms of a higher relative weight and thickness increase, a better proteoglycan removing and a better silicon absorptivity. The SEM analysis indicated fiber bundles were fully opened with this silicate agent. For the wet blue prepared by new method, an equally quality data was shown compared with control, meanwhile, a lighter surface color, less and equally distributed Cr(III) were detected. More compact fiber bundles were shown on the SEM images. No obvious damage was detected in tropocollagen fiber structures through AFM analysis. Furthermore, compared with the traditional process, COD, total solids and turbidity data of both swelling and tanning effluent provided a lower value. The results could provide a feasible way for silicon tetrachloride recycling, also provide valuable references for clean production of leather industry.
Authors and Affiliations
Bo TENG, Xiaoyun JIAN, Jinwei ZHANG, Wuyong CHEN, Yinghong WANG
Keywords
Related Articles
- EP ID EP535477
- DOI -
- Views 108
- Downloads 0
INVESTIGATION AND EVALUATION OF THE QUALITY FEATURES RELATED TO COMFORT OF CASUAL SHOES IN BANGLADESHI LEADING RETAIL BRANDS USING PHYSICAL AND CHEMICAL STANDARD TEST METHODS
Several materials and chemicals are being used during manufacturing processes of shoes which are responsible for a good quality product. Nowadays it has been coming out of the current market of Bangladesh that leading re...
POLYAMIDE/POLYETHYLENE/GRAPHITE NANOCOMPOSITES: DEVELOPMENT AND MORPHO-STRUCTURAL AND PHYSICAL-MECHANICAL CHARACTERISATION
This paper presents the development of bipolymer nanopolymers - polyamide and polyethylene - compatibilised with polyethylene-graft-maleic anhydride and graphite nanoparticles. Polyamide/polyethylene (PA/PE) composites a...
The collagen state within the parchment after influence of artificial aging
The study examines the influence of artificial aging on the stability of collagen within the parchments. Aging of the parchments was generated by heating at 70°C in a dry oven for 72 h as well as by keeping the parchment...
PARAMETERS OPTIMIZATION OF PID CONTROLLERS FOR LEATHER MANUFACTURING PROCESS BY USING GENETIC ALGORITHMS
In this paper is proposed a control strategy for leather manufacturing process. This control strategy makes use of conventional PID control algorithms in combination with an evolutionary optimization technique, namely ge...
FOOT PRESSURE CHARACTERISTICS OF CHINESE OVERWEIGHT AND OBESE CHILDREN DURING GAIT
There are differences in foot pressure characteristics depending on ethnicity. This is the first study to evaluate dynamic plantar pressures of overweight children, not only obese children in China, which can provide the...