Binary Structured Polypropylene/Polyethylene Glycol Micro-nanofibrous Membranes with Enhanced Water and Air Permeability

2021 ◽  
Vol 22 (1) ◽  
pp. 69-76
Author(s):  
Heng Zhang ◽  
Qi Zhen ◽  
Jing-Qiang Cui ◽  
Huan-Wei Sun ◽  
Rang-Tong Liu ◽  
...  
Keyword(s):  
Polyethylene Glycol ◽  
Air Permeability ◽  
Nanofibrous Membranes

Electrospun Polyethylene Glycol/Polyvinyl Alcohol Composite Nanofibrous Membranes as Shape-Stabilized Solid–Solid Phase Change Materials

2020 ◽  
Vol 2 (3) ◽  
pp. 167-177 ◽  
Author(s):  
Junwen Huang ◽  
Houyong Yu ◽  
Somia Yassin Hussain Abdalkarim ◽  
Jaromir Marek ◽  
Jiri Militky ◽  
...  
Keyword(s):  
Polyethylene Glycol ◽  
Polyvinyl Alcohol ◽  
Phase Change ◽  
Phase Change Materials ◽  
Solid Phase ◽  
Nanofibrous Membranes

Nanofibrous Membranes with High Air Permeability and Fluffy Structure based on Low Temperature Electrospinning Technology

2020 ◽  
Vol 21 (7) ◽  
pp. 1466-1474
Author(s):  
Siying Lin ◽  
Xiang Huang ◽  
Zhenxiang Bu ◽  
Zhihong Lin ◽  
Peiqin Xie ◽  
...  
Keyword(s):  
Low Temperature ◽  
Air Permeability ◽  
Nanofibrous Membranes

Silicone oil based softeners including different additives

2019 ◽  
Vol 31 (1) ◽  
pp. 16-31
Author(s):  
Onur Balci ◽  
Gözde Özlem Kinoglu ◽  
Burcu Sancar Besen
Keyword(s):  
Polyethylene Glycol ◽  
Thermal Comfort ◽  
Silicone Oil ◽  
Air Permeability ◽  
Polyethylene Glycol 400 ◽  
Content Type ◽  
Moisture Management ◽  
Novel Approach ◽  
Hydrophilic Character ◽  
Thermal Comfort Properties

Purpose In this study, which is divided into two parts, the silicone softeners having different properties and including different additives as glycerin, polyethylene glycol 400 (PEG 400) and polyethylene glycol 4000 (PEG 4000) (due to their high hydrophilic characters) are produced for the purpose of providing or developing the hydrophilic character, lubricity and filling properties of the emulsions. The paper aims to discuss this issue. Design/methodology/approach In the first part of the study, the produced silicone emulsions were characterized and applied to the 100 percent cotton-knitted fabrics. In addition, the mechanical properties and whiteness degrees of the fabrics were also researched. In this part of the study, the effects of the produced silicone softeners on the comfort properties of the fabric samples were investigated by qualitative handle, hydrophility, contact angle, air permeability, thermal comfort and moisture management tests. Findings The results showed that while classic silicone application improved mechanical comfort properties of the samples such as the handle and drape properties, they worsened other thermal comfort properties as hydrophility, transfer or dispersion of the moisture, and air permeability. In addition, the thermal comfort properties about heat transfer of the fabric samples were not significantly affected by application of the silicone softeners. All results were affected from the producing recipe of the silicone softeners, and generally the usage of the additives had positive effect on the comfort results depending on the producing recipe (especially type of the silicone oil) of the silicone softeners. Research limitations/implications In this study, the additives were used in single form; however, their dual or trio combinations and/or their different amounts can be used in the emulsions. Practical implications In order to enhance the hydrophilic character, lubricity and filling properties of the silicone softeners, they could be produced by using appropriate additives. Originality/value In the literature, there were not any studies about the silicone softeners including different additives. So the authors can say that the contribution of the additives to the recipes of the silicone softeners is a novel approach.

Prevention of peritendinous adhesions with electrospun polyethylene glycol/polycaprolactone nanofibrous membranes

2015 ◽  
Vol 133 ◽  
pp. 221-230 ◽  
Author(s):  
Chih-Hao Chen ◽  
Shih-Hsien Chen ◽  
K.T. Shalumon ◽  
Jyh-Ping Chen
Keyword(s):  
Polyethylene Glycol ◽  
Nanofibrous Membranes

Preparation of PVDF Nanofibrous Membrane and its Waterproof and Breathable Property

2013 ◽  
Vol 796 ◽  
pp. 327-330 ◽  
Author(s):  
Ying Zhou ◽  
Li Rong Yao ◽  
Qiang Gao
Keyword(s):  
Contact Angle ◽  
Volume Ratio ◽  
Air Permeability ◽  
Nanofibrous Membrane ◽  
Pvdf Membrane ◽  
Nanofibrous Membranes ◽  
The Relationship

PVDF nanofibrous membranes were successfully prepared by electrospinning in this paper, and the component solvent of DMF/acetone was used. The concentration of PVDF and the volume ratio of component solvents of DMF/acetone were the most important variables to affect the morphology, diameter and uniformity of the nanofibers. The concentration of spinning fluid changed from 10 wt% to18 wt% and the volume ratio of DMF/acetone ranged from 2/8 to 8/2. The results of the study showed that the better nanofibrous membrane was prepared when the concentration of PVDF was 12 wt% and the ratio of component solvent DMF/acetone was 6/4. At this moment, the morphology and contact angle of PVDF membrane were better in comparison with other groups. The contact angle, waterproof properties, air permeability were measured, which indicated that the PVDF nanofibrous membrane showed a good air permeability and had an excellent waterproof properties at the same time. In the meantime, by changing the thickness of membrane, we could analyze the relationship between the thickness of the membrane and its breathability and waterproofness.

Immunocytochemical detection of hepatic carbohydrate metabolic enzymes: Improved resolution with polyethylene glycol embedding and visio-bond semithin sections

1992 ◽  
Vol 50 (1) ◽  
pp. 792-793
Author(s):  
Kuixiong Gao ◽  
Randal E. Morris ◽  
Bruce F. Giffin ◽  
Robert R. Cardell
Keyword(s):  
Polyethylene Glycol ◽  
Glycogen Phosphorylase ◽  
Phosphoenolpyruvate Carboxykinase ◽  
Glycogen Synthase ◽  
Metabolic Enzymes ◽  
Silver Stain ◽  
Accurate Localization ◽  
Immunocytochemical Detection ◽  
Semithin Sections ◽  
Parenchymal Cells

Several enzymes are involved in the regulation of anabolic and catabolic pathways of carbohydrate metabolism in liver parenchymal cells. The lobular distribution of glycogen synthase (GS), phosphoenolpyruvate carboxykinase (PEPCK) and glycogen phosphorylase (GP) was studied by immunocytochemistry using cryosections of normal fed and fasted rat liver. Since sections of tissue embedded in polyethylene glycol (PEG) show good morphological preservation and increased detectability for immunocytochemical localization of antigenic sites, and semithin sections of Visio-Bond (VB) embedded tissue provide higher resolution of cellular structure, we applied these techniques and immunogold-silver stain (IGSS) for a more accurate localization of hepatic carbohydrate metabolic enzymes.

Directional observation on lipid of male nectary of Lindera megaphylla hemsl. by the rapid embedding method with polyethylene glycol (PEG)

1990 ◽  
Vol 48 (3) ◽  
pp. 718-719
Author(s):  
Dai Dalin ◽  
Guo Jianmin
Keyword(s):  
Electron Microscope ◽  
Polyethylene Glycol ◽  
Chemical Reaction ◽  
Traditional Method ◽  
Osmium Tetroxide ◽  
Unsaturated Lipid ◽  
Embedding Method ◽  
Long Period ◽  
New Methods

Lipid cytochemistry has not yet advanced far at the EM level. A major problem has been the loss of lipid during dehydration and embedding. Although the adoption of glutaraldehyde and osmium tetroxide accelerate the chemical reaction of lipid and osmium tetroxide can react on the double bouds of unsaturated lipid to from the osmium black, osmium tetroxide can be reduced in saturated lipid and subsequently some of unsaturated lipid are lost during dehydration. In order to reduce the loss of lipid by traditional method, some researchers adopted a few new methods, such as the change of embedding procedure and the adoption of new embedding media, to solve the problem. In a sense, these new methods are effective. They, however, usually require a long period of preparation. In this paper, we do research on the fiora nectary strucure of lauraceae by the rapid-embedding method wwith PEG under electron microscope and attempt to find a better method to solve the problem mentioned above.

Polyethylene Glycol Tx Aids Chronic Constipation

2008 ◽  
Vol 42 (2) ◽  
pp. 48
Author(s):  
DOUG BRUNK
Keyword(s):  
Polyethylene Glycol ◽  
Chronic Constipation

Polyethylene glycol-mediated direct gene transfer in Nicotiana spp.

1992 ◽  
Vol 85 (2) ◽  
pp. 345-351 ◽  
Author(s):  
Gokarna B. Gharti-Chhetri ◽  
Wichai Cherdshewasart ◽  
Jocelyne Dewulf ◽  
Michel Jacobs ◽  
loan Negrutiu
Keyword(s):  
Polyethylene Glycol ◽  
Gene Transfer ◽  
Direct Gene Transfer ◽  
Direct Gene
Sign in / Sign up

Export Citation Format

Share Document