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Title: Effect of addition of coal-tar pitches on adhesive properties of copolymer of ethylene with vinyl acetate

Abstract

Results of studies of the effect of the addition of coal-tar pitches on the water resistance and adhesive properties of the copolymer of ethylene with vinyl acetate (CEVA) used as an adhesive layer in polymer films for protection of oil and gas pipelines against corrosion are presented. The dependence of the adhesive strength of CEVA with 12% vinyl acetate (VA) on the concentration of coal-tar pitch additives with softening temperatures of 70, 85, and 107/sup 0/C was found to be extreme with maximum adhesive strength in the concentration range of 0.8-1.4%. This increase in adhesive strength at low concentrations is thought to be due to improvement in the wetability of the melt. After long exposure (30h) to boiling water, the water resistance of the adhesive joints was improved by the addition of coal-tar pitches; but in the initial period of boiling, a decrease in water resistance was produced by the addition of coal-tar pitches. Films with pitch additives with a softening temperature of 70/sup 0/C were noted to have the highest hydrophobicity at low concentrations of the pitch additive.

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Inst. of Physical Organic Chemistry, Kiev, Ukrainian SSR
OSTI Identifier:
6534851
Resource Type:
Journal Article
Journal Name:
J. Appl. Chem. USSR (Engl. Transl.); (United States)
Additional Journal Information:
Journal Volume: 56:8; Other Information: Translated from Zh. Prikl. Khim. (Leningrad); 56: No. 8, 1856-1859(Aug 1983)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 01 COAL, LIGNITE, AND PEAT; PIPELINES; CORROSION PROTECTION; PITCHES; ADHESION; SURFACE PROPERTIES; POLYETHYLENES; POLYVINYLS; ACETIC ACID ESTERS; ADHESIVES; COAL TAR; COPOLYMERS; ETHYLENE; EXPERIMENTAL DATA; FILMS; NATURAL GAS; PETROLEUM; WATERPROOFING; ALKENES; CARBOXYLIC ACID ESTERS; DATA; ENERGY SOURCES; ESTERS; FLUIDS; FOSSIL FUELS; FUEL GAS; FUELS; GAS FUELS; GASES; HYDROCARBONS; INFORMATION; NUMERICAL DATA; ORGANIC COMPOUNDS; ORGANIC POLYMERS; OTHER ORGANIC COMPOUNDS; POLYMERS; POLYOLEFINS; TAR; 360404* - Materials- Polymers & Plastics- Physical Properties- (-1987); 010600 - Coal, Lignite, & Peat- Properties & Composition

Citation Formats

Chernikov, O I, Mironov, V A, Mitrokhina, L L, Kuznetsova, L S, Nepomnyashchaya, A S, and Kachan, A A. Effect of addition of coal-tar pitches on adhesive properties of copolymer of ethylene with vinyl acetate. United States: N. p., 1984. Web.
Chernikov, O I, Mironov, V A, Mitrokhina, L L, Kuznetsova, L S, Nepomnyashchaya, A S, & Kachan, A A. Effect of addition of coal-tar pitches on adhesive properties of copolymer of ethylene with vinyl acetate. United States.
Chernikov, O I, Mironov, V A, Mitrokhina, L L, Kuznetsova, L S, Nepomnyashchaya, A S, and Kachan, A A. 1984. "Effect of addition of coal-tar pitches on adhesive properties of copolymer of ethylene with vinyl acetate". United States.
@article{osti_6534851,
title = {Effect of addition of coal-tar pitches on adhesive properties of copolymer of ethylene with vinyl acetate},
author = {Chernikov, O I and Mironov, V A and Mitrokhina, L L and Kuznetsova, L S and Nepomnyashchaya, A S and Kachan, A A},
abstractNote = {Results of studies of the effect of the addition of coal-tar pitches on the water resistance and adhesive properties of the copolymer of ethylene with vinyl acetate (CEVA) used as an adhesive layer in polymer films for protection of oil and gas pipelines against corrosion are presented. The dependence of the adhesive strength of CEVA with 12% vinyl acetate (VA) on the concentration of coal-tar pitch additives with softening temperatures of 70, 85, and 107/sup 0/C was found to be extreme with maximum adhesive strength in the concentration range of 0.8-1.4%. This increase in adhesive strength at low concentrations is thought to be due to improvement in the wetability of the melt. After long exposure (30h) to boiling water, the water resistance of the adhesive joints was improved by the addition of coal-tar pitches; but in the initial period of boiling, a decrease in water resistance was produced by the addition of coal-tar pitches. Films with pitch additives with a softening temperature of 70/sup 0/C were noted to have the highest hydrophobicity at low concentrations of the pitch additive.},
doi = {},
url = {https://www.osti.gov/biblio/6534851}, journal = {J. Appl. Chem. USSR (Engl. Transl.); (United States)},
number = ,
volume = 56:8,
place = {United States},
year = {Wed Aug 01 00:00:00 EDT 1984},
month = {Wed Aug 01 00:00:00 EDT 1984}
}