نتایج جستجو برای: wood fiber
تعداد نتایج: 168337 فیلتر نتایج به سال:
Fiber dimensions and lignin and cellulose content of various highly productive, non-wood plants and agricultural residues were examined to assess their suitability for paper production. Plants like kenaf (Hibiscus cannabinus L.) and giant reed (Arundo donax L.) internodes gave very good derived values, especially slenderness ratio, which is directly comparable to some softwood and most hardwood...
Fishing boats are vessels that almost 90% of the building materials made wood. The nature wood is easily weathered and attacked by destroying organisms causes fishing with to be damaged. Banana trees plants thrive in Indonesia. In addition fruit, banana tree leaves part often used for reprocessing. However, midrib cannot utilized optimally will become unused waste. Therefore, author has an inno...
Cellulose is a renewable and biodegradable natural biopolymersynthesized mainly in plants such as wood, bark, cotton fiber, green algae, some bacteria and animals. Pre-treatment processes such as alkaline purification and enzymatic purification are applied in order to create a proper sorption characteristic of regenerated cellulose fiber. Prior to the application of cellulose/cellulose derivati...
P. fortunei was imported into Iran from China and was planted at different spacings in the forest of the north of Iran, for wood production. In this research, physical, chemical, mechanical properties and morphological characteristics of Iranian cultivated paulownia (Paulownia fortunei L.) wood were investigated. Paulownia has acceptable Runkel, flexibility and slenderness coefficients, which a...
Research on wood-flour-filled polypropylene has primarily focused on one species of wood flour and one or two broad particle-size distributions. To fully exploit the use of wood flour as a filler, the effects of species and particle size need to be examined. This study focused on the effects of both of these variables on the properties of polypropylene filled with wood flour. To examine the eff...
Wood xylem fiber cell consists of two main parts: a thick secondary wall and thin compound middle lamella (CML). A middle layer (S2) is the thickest layer of the secondary wall and is reinforced with fibrous polysaccharide crystals oriented more or less parallel to the fiber cell axis. The orientation angle (microfibril angle; MFA) determines the mechanical properties of the wood xylem fibers, ...
The eucalypts as a group are attractive because of their rapid growth. This results in very high yields on a volume basis and in combination with the comparatively high specific gravities, the yields of dry fiber can be truly impressive. Maximum yield of dry fiber is the logical goal when the anticipated use is for fuel, or as a chemical feedstock for processes such as destructive distil latio...
Certain dicotyledon families characteristically have tracheids as their imperforate tracheary element type. Of these, six families are anomalous by having septate (or nonseptate but living) fiber-tracheids or libriform fibers coexisting with the tracheids in some species or genera (Austrobaileyaceae, Celastraceae, Convolvulaceae, Ericaceae , and Grossulariaceae, and Rosaceae) . Data from the li...
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