نتایج جستجو برای: various natural

تعداد نتایج: 1204109  

Journal: :Journal of Applied Polymer Science 2021

Lignin functions as an essential polymer in plants that forms the plant body's structural framework. The natural glue holds cellulosic fibers together body, thereby providing rigidity and strength. Despite this, lignin shows promising relevance for biomaterial production due to its abundance, nontoxic nature biodegradability. Considerably, adhesive components were derived from petroleum, which ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سمنان - دانشکده مهندسی موادو متالورژی 1393

the aim of this paper is eliminating cr(vi) by natural hap. hap is a inexpensive material which is used from bovine critical bone ash in order to remove heavy metal ions like cr(vi). some experiments in different ph are performed (ph=2,3,7). maximum adsorption was appeared at ph=2, dosage=0.3 gr, c0=10 mg/l. cr(vi) removal depends on ph value and initial amount of cr(vi) result of experiments w...

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