scholarly journals Investigations of Adhesive Properties of Polyamide Modified with Friction Reducing Agents

2022 ◽  
Vol 16 (1) ◽  
pp. 113-121
Author(s):  
Kamil Anasiewicz ◽  
Józef Kuczmaszewski
Keyword(s):  
Reducing Agents ◽  
Adhesive Properties ◽  
Friction Reducing

Selection and Use of Age Resistors in Rubber Compounds

1934 ◽  
Vol 7 (4) ◽  
pp. 663-687
Author(s):  
Richard A. Crawford
Keyword(s):  
Surface Treatment ◽  
Early Development ◽  
Reducing Agents ◽  
Adhesive Properties ◽  
Temperature Changes ◽  
Rubber Industry ◽  
Beneficial Effects ◽  
Organic Bases ◽  
Rapid Deterioration ◽  
Rubber Compounds

Abstract THE early development of the rubber industry was handicapped by two serious defects in rubber articles. They were not stable to temperature changes, and they deteriorated rapidly with age. Although the process of vulcanization corrected the first difficulty, rapid deterioration with age was common until the discovery of certain organic accelerators, such as p-aminodimethylaniline, the aldehydeamines, and mercaptobenzothiazole. Prior to these discoveries a number of materials had been patented for the purpose of improving the age-resisting properties of rubber, but many of them were of little merit and most of the others possessed some accelerating value, a fact which was not appreciated at the time. Typical of the more useful early patents for age-resisting materials are American patents by Murphy in 1870 (15), Moore in 1901 (14), and Martin in 1922 (12), and the German and English patents of the Ostwalds in 1908 and 1910 (19, 20). Murphy patented phenol, cresol, and cresylic acid, either added to the uncured stock or as dipping solutions for vulcanized articles for the purpose of improving their resistance to aging. Moore used reducing agents, including hydroquinone, pyrogallol, and p-aminophenol hydrochloride, to preserve the adhesive properties of rubber cements. Martin suggested aniline and other organic bases as a surface treatment for vulcanized articles. The Ostwalds also recognized the beneficial effects of aniline on rubber and stated that it could be added at any convenient stage of manufacture. (It is interesting to note that these inventors considered that addition of aniline to uncured stock or dipping the cured article in aniline were equivalent, and they, therefore, evidently did not recognize the accelerating effect of aniline.)

scholarly journals Aspartic Acid-derived Wear-preventing and Friction-reducing Agents for Ionic Liquids

2008 ◽  
Vol 37 (3) ◽  
pp. 300-301 ◽  
Author(s):  
Ichiro Minami ◽  
Naoko Watanabe ◽  
Hidetaka Nanao ◽  
Sigeyuki Mori ◽  
Kenta Fukumoto ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Aspartic Acid ◽  
Reducing Agents ◽  
Friction Reducing

Research on friction reducing agents

1973 ◽  
Vol 9 (1) ◽  
pp. 32-45 ◽  
Author(s):  
Truman C. Clough
Keyword(s):  
Reducing Agents ◽  
Friction Reducing

Methods for the Concentration of Bovine Ac-Globulin (Factor V)

1961 ◽  
Vol 06 (03) ◽  
pp. 435-444 ◽  
Author(s):  
Ricardo H. Landaburu ◽  
Walter H. Seegers
Keyword(s):  
Room Temperature ◽  
Barium Carbonate ◽  
Deae Cellulose ◽  
Reducing Agents ◽  
Factor V ◽  
Isoelectric Precipitation ◽  
Stabilizing Agent ◽  
Bovine Plasma ◽  
The Stability

SummaryAn attempt was made to obtain Ac-globulin from bovine plasma. The concentrates contain mostly protein, and phosphorus is also present. The stability characteristics vary from one preparation to another, but in general there was no loss before 1 month in a deep freeze or before 1 week in an icebox, or before 5 hours at room temperature. Reducing agents destroy the activity rapidly. S-acetylmercaptosuccinic anhydride is an effective stabilizing agent. Greatest stability was at pH 6.0.In the purification bovine plasma is adsorbed with barium carbonate and diluted 6-fold with water. Protein is removed at pH 6.0 and the Ac-globulin is precipitated at pH 5.0. Rivanol and alcohol fractionation is followed by chromatography on Amberlite IRC-50 or DEAE-cellulose. The final product is obtained by isoelectric precipitation.

Recent data on the causative agent of pale green dwarf (Acholeplasma laidlawii var. granulum incertae sedis) in Ukraine: pathogenicityand virulence factors and host reactions

2015 ◽  
Vol 2 (1) ◽  
pp. 30-34
Author(s):  
K. Korobkova ◽  
V. Patyka
Keyword(s):  
Phenylalanine Ammonia Lyase ◽  
Proteolytic Enzymes ◽  
Physiological State ◽  
Plant Cells ◽  
Temporary Increase ◽  
Adhesive Properties ◽  
The Impact ◽  
Signaling Interactions ◽  
Pale Green

Contemporary state of the distribution of mycoplasma diseases of cultivated crops in Ukraine was analyzed. The changes of the physiological state of plant cells under the impact of mollicutes were investigated. It was demonstrated that there is temporary increase in the activity of peroxidase, catalase, polyphenoloxidase, phenylalanine-ammonia-lyase at the early stages of interaction. The adhesive properties are changed in the mollicutes under the impact of plant lectin; there is synthesis of new polypeptides. It was determined that the phytopathogenic acholeplasma is capable of producing a complex of proteolytic enzymes into the culture me- dium. It was concluded that when plant cells are infected with acholeplasma, a number of signaling interactions and metabolic transformations condition the recognition of pathogenesis and ensure the aggregate response of a plant to stress in the form of defense reactions. It was assumed that some specifi cities of the biology of phy- topathogenic acholeplasma determine their avoiding the immune mechanisms of plants and promote long-term persistence of mollicutes.

Characteristics of Adhesive Properties of Lactobacillus Strains Synthesising Biosurfactants

2007 ◽  
Vol 22 (2) ◽  
pp. 333-342 ◽  
Author(s):  
Piotr Gołek ◽  
Włodzimierz Bednarski ◽  
Monika Lewandowska
Keyword(s):  
Adhesive Properties

The study of the drilling mud fluid loss reducing agents based on carboxymethyl starch and cellulose

2017 ◽  
pp. 102-105
Author(s):  
R.R. Sagitov ◽  
◽  
K.M. Minaev ◽  
A.S. Zakharov ◽  
A.S. Korolev ◽  
...  
Keyword(s):  
Reducing Agents ◽  
Fluid Loss ◽  
Drilling Mud ◽  
Carboxymethyl Starch

Microfluidic Quantification of Yeast Surface Adhesion

2018 ◽  
Author(s):  
Kristina Reinmets ◽  
Amin Dehkharghani ◽  
Jeffrey S. Guasto ◽  
Stephen Fuchs
Keyword(s):  
Genetic Background ◽  
Food Production ◽  
Rapid Screening ◽  
Surface Adhesion ◽  
Adhesive Properties ◽  
Fungal Adhesion ◽  
Yeast Surface ◽  
Population Scale

<div>Fungal adhesion is fundamental to processes ranging from</div><div>infection to food production yet, robust, population-scale</div><div>quantification methods for yeast surface adhesion are lacking. We developed a microfluidic assay to distinguish the effects of genetic background and solution conditions on adhesion. This approach will enable the rapid screening of yeast adhesive properties for anti-fouling surfaces and a host of other applications.</div>

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