The effect of certain production conditions of the properties of high-modulus polyvinyl alcohol fibres

1971 ◽  
Vol 1 (6) ◽  
pp. 662-665
Author(s):  
O. S. Lelinkov ◽  
L. E. Utevskii ◽  
K. E. Perepelkin
Keyword(s):  
Polyvinyl Alcohol ◽  
High Modulus ◽  
Production Conditions

High-modulus polyvinyl alcohol fibres

1971 ◽  
Vol 1 (5) ◽  
pp. 578-579
Author(s):  
K. E. Perepelkin ◽  
O. S. Leninkov ◽  
L. E. Utevskii ◽  
A. I. Mazo ◽  
B. M. Pugach ◽  
...  
Keyword(s):  
Polyvinyl Alcohol ◽  
High Modulus

The effect of degree of polymerization on the structure and properties of polyvinyl alcohol fibers with high strength and high modulus

2020 ◽  
Vol 138 (10) ◽  
pp. 49971
Author(s):  
Xinqiu Hong ◽  
Yongjing Xu ◽  
Liming Zou ◽  
Yan Vivian Li ◽  
Junwei He ◽  
...  
Keyword(s):  
Polyvinyl Alcohol ◽  
High Strength ◽  
Degree Of Polymerization ◽  
Structure And Properties ◽  
High Modulus

Preparation of ultra-high modulus polyvinyl alcohol fibers by the zone-drawing method

1990 ◽  
Vol 40 (1112) ◽  
pp. 2101-2112 ◽  
Author(s):  
Toshio Kunugi ◽  
Tamio Kawasumi ◽  
Takashi Ito
Keyword(s):  
Polyvinyl Alcohol ◽  
High Modulus ◽  
Drawing Method

EXELFS Studies of Carbon Fibers

1990 ◽  
Vol 48 (2) ◽  
pp. 72-73
Author(s):  
V. Serin ◽  
K. Hssein ◽  
G. Zanchi ◽  
J. Sévely
Keyword(s):  
Carbon Fibers ◽  
Energy Analysis ◽  
Electron Excitation ◽  
Complex Structures ◽  
High Modulus ◽  
Promising Technique ◽  
X Ray ◽  
Fine Structures ◽  
X Ray Absorption

The present developments of electron energy analysis in the microscopes by E.E.L.S. allow an accurate recording of the spectra and of their different complex structures associated with the inner shell electron excitation by the incident electrons (1). Among these structures, the Extended Energy Loss Fine Structures (EXELFS) are of particular interest. They are equivalent to the well known EXAFS oscillations in X-ray absorption spectroscopy. Due to the EELS characteristic, the Fourier analysis of EXELFS oscillations appears as a promising technique for the characterization of composite materials, the major constituents of which are low Z elements. Using EXELFS, we have developed a microstructural study of carbon fibers. This analysis concerns the carbon K edge, which appears in the spectra at 285 eV. The purpose of the paper is to compare the local short range order, determined by this way in the case of Courtauld HTS and P100 ex-polyacrylonitrile carbon fibers, which are high tensile strength (HTS) and high modulus (HM) fibers respectively.

Autonomous self-healing polyisoprene elastomers with high modulus and good toughness based on the synergy of dynamic ionic crosslinks and highly disordered crystals

2020 ◽  
Vol 11 (41) ◽  
pp. 6549-6558
Author(s):  
Yohei Miwa ◽  
Mayu Yamada ◽  
Yu Shinke ◽  
Shoichi Kutsumizu
Keyword(s):  
Mechanical Properties ◽  
Room Temperature ◽  
Self Healing ◽  
High Modulus ◽  
Disordered Crystals ◽  
Ionic Crosslinks

We designed a novel polyisoprene elastomer with high mechanical properties and autonomous self-healing capability at room temperature facilitated by the coexistence of dynamic ionic crosslinks and crystalline components that slowly reassembled.

On visions and promises — ethical aspects of in vitro meat

2019 ◽  
Vol 3 (6) ◽  
pp. 753-758
Author(s):  
Silvia Woll
Keyword(s):  
Animal Welfare ◽  
Environmental Issues ◽  
Meat Production ◽  
Ethical Aspects ◽  
Existing Problems ◽  
In Vitro Meat ◽  
Production And Consumption ◽  
Production Conditions

Innovators of in vitro meat (IVM) are convinced that this approach is the solution for problems related to current meat production and consumption, especially regarding animal welfare and environmental issues. However, the production conditions have yet to be fully clarified and there is still a lack of ethical discourses and critical debates on IVM. In consequence, discussion about the ethical justifiability and desirability of IVM remains hypothetical and we have to question those promises. This paper addresses the complex ethical aspects associated with IVM and the questions of whether, and under what conditions, the production of IVM represents an ethically justifiable solution for existing problems, especially in view of animal welfare, the environment, and society. There are particular hopes regarding the benefits that IVM could bring to animal welfare and the environment, but there are also strong doubts about their ethical benefits.

Cryogels based on composition chitosan–polyvinyl alcohol: synthesis and properties

2019 ◽  
Vol 5 (4) ◽  
pp. 56-63
Author(s):  
E.V. Dikhtiaruk ◽  
◽  
V.V. Paientko ◽  
A.K. Matkovsky ◽  
Yu.N. Nichiporuk ◽  
...  
Keyword(s):  
Polyvinyl Alcohol ◽  
Alcohol Synthesis

Insecticidal bait development for control of Musca Domestica L.

2020 ◽  
pp. 28-30
Author(s):  
Mikhail A. Levchenko ◽  
Keyword(s):  
Musca Domestica ◽  
Poultry Farm ◽  
Laboratory Studies ◽  
Scientific Center ◽  
Insecticidal Effect ◽  
Invasive Diseases ◽  
Previous Level ◽  
Group Feeding ◽  
Livestock Building ◽  
Production Conditions

The control of houseflies (Musca domestica L.) in veterinary surveillance premises is an important measure for the welfare of animals against infectious and invasive diseases. For this purpose, the most effective chemical insecticides are used. To prevent possible resistance to them, bait insecticides with two active binary ingredients from different chemical classes are used. The work was carried out in the laboratory of the Tyumen Scientific Center and in the production conditions of ZAO Pyshminskaya Poultry Farm. This material presents the main stages in the development of a prototype of the insecticidal bait Mukhnet AX containing two insecticides: 1.5% acetamiprid and 6% chlorfenapir. For this purpose, adults of houseflies Musca domestica L. 3-5 days old were used. Under laboratory conditions, effective rational doses of the above insecticides were determined by group feeding, feeding and by the method of assessing food insecticidal baits when fighting flies from 0.00002 to 4% concentrations. According to the results of laboratory studies, it was found that the optimal doses causing 100% death of insects were 0.5% for acetamiprid and 2% for chlorfenapir. The insecticidal efficiency of the developed bait Mukhnet AH against flies in production conditions on the first day after the treatment of the livestock building was 91.25%. The insecticidal effect of the measures taken lasted for at least 6 days. The restoration of the number to the previous level of the number of insects occurred after 10 days. Based on the results obtained, the Method of using the composition of an insecticidal bait agent in the fight against Musca domestica was proposed and patented.

Synthesis and Characterisation of Polyaniline-Polyvinyl Alcohol-NiO Nanocomposite Film

2011 ◽  
Vol 3 (8) ◽  
pp. 91-93 ◽  
Author(s):  
Sindhu Honmute ◽  
◽  
Arunkumar Lagashetty ◽  
A. Venkataraman A. Venkataraman
Keyword(s):  
Polyvinyl Alcohol ◽  
Nanocomposite Film
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