Influence of the Needle Number on the Heat Insulation Performance of Pre-oxidized Fibre Felts

• Autorzy: Zhao X. , Liu Y. , Liang T.

Identyfikatory

DOI

10.5604/01.3001.0011.7307

Warianty tytułu

PL

Wpływ liczby igieł na izolację termiczną filców z włóknami preoksydowanymi

• Języki publikacji: EN

Abstrakty

EN

Many factors were needed to be considered to prepare pre-oxidised fibre felts with excellent heat insulation performance, and different production processes showed differences in the heat insulation performance of pre-oxidised fibre felts. In order to probe into the influence of the production process on the heat insulation performance of materials, a large number of experiments were needed to be carried out. For needle-punched nonwoven pre-oxidised fibre felts, web features, needle characteristics and the needle process will all affect the structure of pre-oxidised fibre felts, thus bringing a major influence on the heat insulation performance of pre-oxidised fibre felts. In this paper, the influence of the needle number on the heat insulation performance of pre-oxidised fibre felts was mainly studied. Results showed that an increase in the needle number will cause a decrease in the thickness and gram weight of pre-oxidised fibre felts, and a weakening trend in the heat insulation performance of pre-oxidiaed fibre felts with an increasing needle number at room temperature and at 100-200 °C was shown. Moreover when the needle number was 1 and 2, the pre-oxidised fibre needled felts had good heat insulation performance, and for pre-oxidized fibre felts at different needle numbers with increasing temperature, the temperature difference in a steady state increased linearly.

PL

Aby przygotować filce z włóknami preoksydowanymi o doskonałymi właściwościami izolacyjnymi, należy wziąć pod uwagę wiele czynników, a różne procesy produkcyjne wykazały różnice w wydajności izolacji cieplnej filców włóknistych. Aby zbadać wpływ procesu produkcyjnego na parametry izolacji termicznej materiałów, konieczne było przeprowadzenie wielu eksperymentów. W pracy badano głównie wpływ liczby igieł na izolacyjność cieplną wstępnie utlenionych filców włóknistych. Wyniki pokazały, że zwiększenie liczby igieł spowodowało zmniejszenie grubości i gramatury filców włóknistych oraz osłabienie tendencji w zakresie izolacji cieplnej filców z włóknami preoksydowanymi wraz ze wzrastającą liczbą igieł w temperaturze pokojowej i w 100-200 °C. Ponadto, gdy liczba igieł wynosiła 1 i 2, pre-utlenione włókniny igłowane miały dobrą izolację cieplną, a dla wstępnie utlenionych filców włóknistych przy różnych numerach igieł ze wzrastającą temperaturą, różnica temperatur w stanie ustalonym wzrastała liniowo.

Słowa kluczowe

EN

needle number; pre-oxidised fibre felt; heat insulation performance; thermal conductivity coefficient; back temperature

PL

filc z włókna; izolacja cieplna; współczynnik przewodności cieplnej; temperatura powrotu

• Wydawca: Sieć Badawcza Łukasiewicz - Łódzki Instytut Technologiczny
• Czasopismo: Fibres & Textiles in Eastern Europe
• Rocznik: 2018
• Tom: Vol. 26, no. 3 (129)
• Strony: 80--86
• Opis fizyczny: Bibliogr. 29 poz., rys., tab.

Twórcy

autor

Zhao X.

• Tianjin Polytechnic University, School of Textiles, Tianjin 300387, China
• Key Laboratory of Advanced Textile Composites of Ministry of Education, Tianjin, 300387, China

autor

Liu Y.

• Tianjin Polytechnic University, School of Textiles, Tianjin 300387, China
• Key Laboratory of Advanced Textile Composites of Ministry of Education, Tianjin, 300387, China

autor

Liang T.

• Tianjin Polytechnic University, School of Textiles, Tianjin 300387, China

Bibliografia

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Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).