Angebote zu "Phenolic" (24 Treffer)

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Phenolic Resins
329,99 € *
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The salient and versatile features of phenolic resins provide favorable comparisons between them and other thermosetting resins as well as thermoplastic products: thermal behavior, high strength level, long term thermal and mechanical stability, fire, smoke and low toxicity characteristics, electrical and thermal insulating capabilities, cost performance characteristics. The technical content of the book describes significant new phenolic resin chemistry, transformations and recent mechanistic pathways of resole and novolak cure. A vastly expanded treatment of selected application areas consists of wood composites, insulation/textile felts, molding compounds, paper/fabric impregnation, foundry, abrasives, friction and refractory. New applications with up-to-date developments include high performance and advanced composites, imaging/photoresist and carbon/graphite areas. Also included in detail: Standardized test methods important for ISO 9001 ff certification.

Anbieter: Dodax AT
Stand: 24.01.2020
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Turnip Extract and Wastewater Treatment
39,90 € *
ggf. zzgl. Versand

Waste from various industries contains numerous aromatic compounds that are carcinogenic in nature and have harmful impact on human health. Currently, several procedures are being used for removal of phenol (an aromatic compound) from industrial wastewater. Among these, application of enzymatic catalysis has the potential to substitute conventional methods of waste treatment. On other hand, TURNIP (Brassica napis) is widely cultivated as vegetable in different part of the world and cost effective because of its low-priced and readily availability. Turnip s peroxidase content derived from its extract was evaluated for removal of phenolic content present in tannery wastewater. Along with cost effectiveness and greater activity, crude TURNIP extract (comprising peroxidase) is an environment friendly approach to remove phenolic contents from polluted water. This book deals with each aspect of wastewater/ tannery effluent treatment through turnip extract (turnip peroxidases) to remove the phenolic contents. Moreover, this book also comprises methodology to maximize the activity of peroxidases for utmost elimination of phenolic contaminants.

Anbieter: Dodax
Stand: 24.01.2020
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Turnip Extract and Wastewater Treatment
41,10 € *
ggf. zzgl. Versand

Waste from various industries contains numerous aromatic compounds that are carcinogenic in nature and have harmful impact on human health. Currently, several procedures are being used for removal of phenol (an aromatic compound) from industrial wastewater. Among these, application of enzymatic catalysis has the potential to substitute conventional methods of waste treatment. On other hand, TURNIP (Brassica napis) is widely cultivated as vegetable in different part of the world and cost effective because of its low-priced and readily availability. Turnip s peroxidase content derived from its extract was evaluated for removal of phenolic content present in tannery wastewater. Along with cost effectiveness and greater activity, crude TURNIP extract (comprising peroxidase) is an environment friendly approach to remove phenolic contents from polluted water. This book deals with each aspect of wastewater/ tannery effluent treatment through turnip extract (turnip peroxidases) to remove the phenolic contents. Moreover, this book also comprises methodology to maximize the activity of peroxidases for utmost elimination of phenolic contaminants.

Anbieter: Dodax AT
Stand: 24.01.2020
Zum Angebot
Extraction of tokaji aszu marc (Winery waste) w...
39,90 € *
ggf. zzgl. Versand

Wine production generates a huge amount of waste which is considered as unbeneficial and potentially causes environment problems. However, due to the advance technology, minimization of waste production in several wine industries has drawn attention to many. Winery wastes are regarded as a low-cost source of antioxidant and phenolic compounds. Therefore, this specific study aimed to develop the optimal extraction conditions for antioxidant activity and total phenolic content using this solvent concentration. These compounds can be used as food preservatives and natural colourants in food industries.

Anbieter: Dodax
Stand: 24.01.2020
Zum Angebot
Extraction of tokaji aszu marc (Winery waste) w...
41,10 € *
ggf. zzgl. Versand

Wine production generates a huge amount of waste which is considered as unbeneficial and potentially causes environment problems. However, due to the advance technology, minimization of waste production in several wine industries has drawn attention to many. Winery wastes are regarded as a low-cost source of antioxidant and phenolic compounds. Therefore, this specific study aimed to develop the optimal extraction conditions for antioxidant activity and total phenolic content using this solvent concentration. These compounds can be used as food preservatives and natural colourants in food industries.

Anbieter: Dodax AT
Stand: 24.01.2020
Zum Angebot
Extraction Of Phenolic Compounds From Spent Cof...
39,90 € *
ggf. zzgl. Versand

An attempt was made for the first time to investigate and optimize ultrasound-assisted solid-liquid extraction (USLE) of phenolic compounds from spent coffee grounds (low-cost source of valuable phenolic compounds) using three levels, four factors (ultrasonic power, extraction temperature, extraction time and solid-liquid ratio) Box-Behnken response surface design (BBD). From the results, mathematical models were developed to illustrate the effects of process variables and their interactions on the extraction yield of phenolic compounds. The optimum process conditions were found to be: ultrasonic power of 410 W, ultrasonic temperature of 49°C, extraction time of 26 min and solid-liquid ratio of 1:30 g/ml. Under the optimal conditions, the experimental values agreed with predicted values within 95% confidence level, thus indicating the suitability of BBD in optimizing the USLE of phenolic compounds from spent coffee grounds.

Anbieter: Dodax
Stand: 24.01.2020
Zum Angebot
Extraction Of Phenolic Compounds From Spent Cof...
41,10 € *
ggf. zzgl. Versand

An attempt was made for the first time to investigate and optimize ultrasound-assisted solid-liquid extraction (USLE) of phenolic compounds from spent coffee grounds (low-cost source of valuable phenolic compounds) using three levels, four factors (ultrasonic power, extraction temperature, extraction time and solid-liquid ratio) Box-Behnken response surface design (BBD). From the results, mathematical models were developed to illustrate the effects of process variables and their interactions on the extraction yield of phenolic compounds. The optimum process conditions were found to be: ultrasonic power of 410 W, ultrasonic temperature of 49°C, extraction time of 26 min and solid-liquid ratio of 1:30 g/ml. Under the optimal conditions, the experimental values agreed with predicted values within 95% confidence level, thus indicating the suitability of BBD in optimizing the USLE of phenolic compounds from spent coffee grounds.

Anbieter: Dodax AT
Stand: 24.01.2020
Zum Angebot
Expanded Graphite Composite Based Bipolar Plate...
51,30 € *
ggf. zzgl. Versand

Polymer electrolyte membrane fuel cells (PEMFC) are the most promising power sources for various portable electronic devices that operate at low temperature in between 70-80°C. Bipolar plate, an important component of PEMFC contributes nearly 80% weight of the total weight of fuel cell and 50% of the total cost of fuel cell stack. Worldwide efforts are going on to develop strong and thin bipolar plate. This book described the development of Low Density and Low Cost Expanded Graphite (EG) Based Composite Bipolar Plate for PEMFC. (EG) synthesized from different flake size of natural graphite using chemical oxidation and thermal treatment has loose structure and porous behavior which endows high surface area. The composites bipolar plates are developed from EG and phenolic resin in different wt. percentages ratio. The composites with EG ranges from 40-50 wt. % are suitable for achieving the desired electrical and mechanical properties of PEMFC

Anbieter: Dodax AT
Stand: 24.01.2020
Zum Angebot
Expanded Graphite Composite Based Bipolar Plate...
49,90 € *
ggf. zzgl. Versand

Polymer electrolyte membrane fuel cells (PEMFC) are the most promising power sources for various portable electronic devices that operate at low temperature in between 70-80°C. Bipolar plate, an important component of PEMFC contributes nearly 80% weight of the total weight of fuel cell and 50% of the total cost of fuel cell stack. Worldwide efforts are going on to develop strong and thin bipolar plate. This book described the development of Low Density and Low Cost Expanded Graphite (EG) Based Composite Bipolar Plate for PEMFC. (EG) synthesized from different flake size of natural graphite using chemical oxidation and thermal treatment has loose structure and porous behavior which endows high surface area. The composites bipolar plates are developed from EG and phenolic resin in different wt. percentages ratio. The composites with EG ranges from 40-50 wt. % are suitable for achieving the desired electrical and mechanical properties of PEMFC

Anbieter: Dodax
Stand: 24.01.2020
Zum Angebot