Natural resin

Xem 1-6 trên 6 kết quả Natural resin
  • Straight and clear sapwood specimens of 3x3x1.5 cm were prepared from spruce (Picea orientalis L.), pine (Pinus sylvestris L.), beech (Fagus orientalis L.), and alder (Alnus glutinosa Geartn. L.).

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  • Each section includes chapters with interesting topics. Authors spread around the world have been resolved so we are delighted that this book represents research in promising high. Material properties are described in more creative ways for the standard components or biological materials and sources of natural materials. Commonly used materials such as glass, carbon, epoxy resin, concrete, ... described the characteristics improve or construction work. Waste materials use and recycling is the next step and it is a important way how to save resources and our environment....

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  • Sustainability in natural systems is built on the closed-end process of recycling materials. Our present society produces so much that is not recyclable, like resin-molded chairs and air polluting automobile tires, that it is necessary to apply intention to source reduction and product responsibility. Chapter 18 provides knowledge of municipal solid waste and how to disposal and recovery.

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  • Dynamic Semiconductor RAM Structures Industrial Robots Inorganic Fibres & Composite Materials Reverse Osmosis Optical Fibres Nickel &Cobalt Extraction Using Organic Compounds Solid State Video Cameras Microprocessors Molecular Sieve Catalysts Methods of Abating Residual Formaldehyde in Industrial Resins Universal Computer Interfaces Protein Folding Mercury Cadmium Te IIu ride Imagers

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  • Propolis is a natural, resinous, hive product with various bioactive properties. Polymorphonuclear leukocytes (PMNLs) use both oxygen-dependent (respiratory burst) and oxygen-independent mechanisms (releasing proteolytic enzymes such as elastase) to destroy infectious agents.

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  • Two chemical treatments were applied to jute fibers to create a better bonding of fiber to resin in natural composite materials. The jute fibers have been treated with hydroxide potassium (KOH) and a bleaching agent, canxi hypochlorite (Ca(OCl)2.4H2O), in varying periods. Characterization techniques such as FT-IR, SEM were used to evaluate the effect of chemical treatments on fiber structure. After treatment the surface topography of jute was clean and microfibrils were revealed, these lead to an enhancement in mechanical properties and interfacial strength between jute fiber and PP.

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