Neural Networks Model of Polypropylene Surface Modification by Air Plasma

2007 ◽  
Author(s):  
Changquan Wang ◽  
Xuewu Wang ◽  
Xiangning He
Keyword(s):  
Neural Networks ◽  
Surface Modification ◽  
Air Plasma

scholarly journals A self-boosting microwave plasma strategy tuned by air pressure for the highly efficient and controllable surface modification of carbon

RSC Advances ◽  
2021 ◽  
Vol 11 (17) ◽  
pp. 9955-9963
Author(s):  
Yanjing Liu ◽  
Jiawei He ◽  
Bing Zhang ◽  
Huacheng Zhu ◽  
Yang Yang ◽  
...  
Keyword(s):  
Surface Modification ◽  
Carbon Fiber ◽  
High Efficiency ◽  
Microwave Plasma ◽  
Air Pressure ◽  
Air Plasma ◽  
Highly Efficient ◽  
Carbon Fiber Cloth

Microwave enabled air plasma was boosted by a carbon fiber cloth (CFC) and used for the high-efficiency surface modification of the CFC, yielding CFCs with tunable contents of oxygen and each O-containing group.

scholarly journals Hydrophobic Waxes in Ivory Nuts Affect Surface Modification by Atmospheric Air Plasma Jet

2020 ◽  
Vol 2 (2) ◽  
pp. 48-49
Keyword(s):  
Contact Angle ◽  
Surface Modification ◽  
Water Contact Angle ◽  
Plasma Jet ◽  
Raman Imaging ◽  
Wall Material ◽  
Air Plasma ◽  
Water Contact ◽  
Atmospheric Air ◽  
Imaging Results

Ivory nuts, produced by palms from the genus Phytelephas, possess a hard and microporous endosperm with a strong resemblance to elephant ivory. The nuts sustainable appeal made them popular as eco-friendly substitutes to ivory since they promote the development of forest communities without contributing to deforestation and animal poaching. In addition, they have been commercialized as microbeads to replace microplastics in cosmetic applications. However, this material is vulnerable to deterioration by micro-organisms and insects, as they are predominantly constituted by β-1,4-mannan, a hydrophilic polysaccharide similar to cellulose. In this context, seed endosperm was treated for 80 s by an atmospheric air plasma jet so as to modify its wettability, as plasma has been widely studied recently for seed disinfection and surface modification. Plasma treated samples were characterized by the water contact angle, AFM, and Raman imaging. Water contact angle results showed an increase from (31.5 ± 8.7)º to (78.9 ± 5.4)º, indicating incorporation of hydrophobic moieties to the sample surface. In turn, AFM images demonstrate the formation of a rough and heterogeneous coating that resembles epicuticular wax layers. Furthermore, principal component analysis of Raman imaging results evidenced contributions from wax (1156, 1170 and 1410 cm-1), carbohydrates (1020, 1080 and 1106 cm-1), and lignin (1573, 1635 and 1662 cm-1). These results indicate that plasma treatment promoted the migration of hydrophobic waxes to the surface and their crosslinking with fragmented cell wall material such as mannan, xylan, and lignin, promoting seed hydrophobization with no need for additional precursors or generation of side products.

Surface Modification of Cellulose Membrane by Air Plasma Treatment

2013 ◽  
Vol 770 ◽  
pp. 112-115
Author(s):  
Nawal Binhayeeniyi ◽  
Adinan Jehsu ◽  
Mancharee Sukpet ◽  
Safitree Nawae
Keyword(s):  
Surface Modification ◽  
Plasma Treatment ◽  
Surface Modifications ◽  
Contact Angles ◽  
Cellulose Membrane ◽  
Air Plasma ◽  
Before And After ◽  
Cellulose Membranes ◽  
Hydrophilic Membranes ◽  
Air Plasma Treatment

Low-temperature air plasma was used to treat the cellulose membranes by varying the period of time from 10 to 30 minutes. The surfaces of membranes were changed from hydrophobic to hydrophilic membranes. The contact angles of treated membranes were increased when increasing time to treat. The surface modifications of membrane before and after treated were characterized by SEM. It is shown that air plasma treatment is used to improve the roughness. The dielectric property was also studied.

Surface modification of polyelectrolyte multilayers by high radio frequency air plasma treatment

2015 ◽  
Vol 329 ◽  
pp. 287-291 ◽  
Author(s):  
Tiago Dias Martins ◽  
Rogério Aparecido Bataglioli ◽  
Thiago Bezerra Taketa ◽  
Fernando da Cruz Vasconcellos ◽  
Marisa Masumi Beppu
Keyword(s):  
Surface Modification ◽  
Radio Frequency ◽  
Plasma Treatment ◽  
Polyelectrolyte Multilayers ◽  
Air Plasma ◽  
Air Plasma Treatment

Surface modification of a biomedical polyethylene terephthalate (PET) by air plasma

2009 ◽  
Vol 255 (8) ◽  
pp. 4446-4451 ◽  
Author(s):  
Liqing Yang ◽  
Jierong Chen ◽  
Yafei Guo ◽  
Zheng Zhang
Keyword(s):  
Surface Modification ◽  
Polyethylene Terephthalate ◽  
Air Plasma

Surface modification of polyethersulfone ultrafiltration membranes by corona air plasma for separation of oil/water emulsions

2013 ◽  
Vol 430 ◽  
pp. 24-36 ◽  
Author(s):  
Ilin Sadeghi ◽  
Abdolreza Aroujalian ◽  
Ahmadreza Raisi ◽  
Bahram Dabir ◽  
Mahdi Fathizadeh
Keyword(s):  
Surface Modification ◽  
Air Plasma ◽  
Ultrafiltration Membranes ◽  
Oil Water
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