plasticnewsПластические массыPlasticheskie massy0554-2901PLASTMASSY Publishing House (Moscow)10.35164/0554-2901-2026-02-34-37plasticnews-1236Research ArticleАНАЛИЗ И МЕТОДЫ РАСЧЁТАANALYSIS AND CALCULATION METHODSВоздухопроницаемость композиционных материалов, армированных нетканым иглопробивным полотномThe breathability of composite materials reinforced with non-woven needle-punched fabricНгуенВ. К.NguyenV. K.

Москва

Moscow 

КожевниковаО. В.KozhevnikovaO. V.

Москва

Moscow 

ДедовА. В.DedovA. V.

Москва

Moscow 

dedovs55@rambler.ruРоссийский государственный университет имени А.Н. КосыгинаРоссияA.N. Kosygin Russian State UniversityRussian FederationМосковский политехнический университетРоссияMoscow Polytechnic UniversityRussian Federation202615052026123437Copyright © Нгуен В.К., Кожевникова О.В., Дедов А.В., 20262026Нгуен В.К., Кожевникова О.В., Дедов А.В.Nguyen V.K., Kozhevnikova O.V., Dedov A.V.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.plastics-news.ru/jour/article/view/1236

Исследована зависимость коэффициента проницаемости по воздуху от степени пропитки композиционных материалов, полученных пропиткой высокопористого нетканого иглопробивного полотна водной дисперсией полиуретана. Образцы композиционных материалов получены методом пропитки полотна без отжима между валами каландра. Избыток дисперсии удаляли при свободном стекании из образца на сетке. Коэффициент проницаемости увеличивается при возрастании степени пропитки от 0 до 0,6 и снижается при степени пропитки больше 0,6. Рост воздухопроницаемости композиционных материалов связали с фиксацией волокон частицами полиуретана. Методом электронной микроскопии исследована структура композиционных материалов со степенью пропитки 0,60 и 1,32.

The dependence of the air permeability coefficient on the degree of impregnation of composite materials obtained by impregnating highly porous non-woven needle-punched fabric with an aqueous dispersion of polyurethane was has been studied. Samples of composite materials were obtained by impregnating the fabric without squeezing between the calender rolls. Excess dispersion was removed by free flow from the sample on a grid. The permeability coefficient increases with the degree of impregnation from 0 to 0.6 and decreases with the degree of impregnation greater than 0.6. The increase in breathability of composite materials was associated with the fixation of fibers by polyurethane particles. The structure of composite materials with impregnation degrees of 0.60 and 1.32 was studied using electron microscopy.

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The authors declare that there are no conflicts of interest present.