FARKLI ÖRME YAPILARINA SAHİP KNT İLAVELİ PP/CAM ELYAF TAKVİYELİ ÇİFT EKSENLİ ATKI ÖRME TERMOPLASTİK KOMPOZİTLERİNİN MEKANİK ÖZELLİKLERİ

Year 2024, , 33 - 41, 30.06.2024

Özgür Demircan , Abdurrahman Yıldız

https://doi.org/10.22531/muglajsci.1422587

Abstract

Bu çalışmada düz (P), interlok (INT), askı (T) ve askı&atlama (TM) gibi farklı örgü yapılarına sahip dört tip çift eksenli atkılı örme (BWK) kumaş (polipropilen (PP) reçine iplik/cam elyaf (GF)) ve çok duvarlı karbon nanotüpler (ÇDKNT'ler) (ağırlıkça %0,4) ÇDKNT ilaveli termoplastik laminantlar üretmek için takviye olarak kullanıldı. Laminantların mekanik özelliklerini incelemek için, eğilme, kısa kiriş ve Charpy darbe testleri numunelere uygulandı. Ön çalışmalarda, ÇDKNT'li ve ÇDKNT'siz termoplastik laminantların üretilmesi için düz örgülü BWK kumaşlar kullanılmış ve numuneler üzerinde eğilme testleri yapılarak ÇDKNT 'lerin laminantlar üzerindeki olumlu etkisi ortaya çıkarılmıştır. Ağırlıkça %0,4 ÇDKNT'li INT ve TM örgü tipleri neredeyse aynı bükülme modülüsü ve mukavemetine sahiptir. Ağırlıkça %0,4 ÇDKNT'li interlok örgü tipine sahip BWK laminantlarla askı tipi ile olanlarına göre %5 ve %41 daha yüksek bükülme modülü ve mukavemeti elde edildi. Ağırlıkça %0,4 ÇDKNT'li askı&atlama örgülü (21,02 MPa ve 6,34 Joule) ve askı örgülü (16,39 MPa ve 4,04 Joule) plakalar karşılaştırıldığında %28,2 daha yüksek kısa kiriş mukavemeti ve %57 daha yüksek Charpy darbe enerjisi elde edildi.

Keywords

Düz, İnterlok, Askı ve Askı&atlama örgü, Karışık elyaflar, Karbon nanotüpler, Termoplastik laminantlar, Eğilme, Kısa kiriş ve Charpy darbe testi özellikleri

Project Number

Project Numbers: PYO.MUH.1901.16.001 and PYO.MUH.1901.18.008

MECHANICAL PROPERTIES OF CNTS INTEGRATED PP/GLASS FIBER REINFORCED BIAXIAL WEFT-KNITTED THERMOPLASTIC COMPOSITES WITH DIFFERENT KNITTING STRUCTURES

Abstract

In this study, four types of biaxial weft-knitted (BWK) fabrics (polypropylene (PP) resin yarn/glass fiber (GF) with different knitting structures such as plain (P), interlock (INT), tuck (T) and tuck&miss (TM) and multi-walled carbon nanotubes (MWCNTs) (0.4 wt%) were used as reinforcements to produce thermoplastic laminates with MWCNTs. In order to study the mechanical characteristics of the laminates, the flexural, short beam and Charpy impact tests on the samples were performed. In preliminary studies, the BWK fabrics with the plain knittings were used to produce the thermoplastic laminates with and without MWCNTs and positive effect of MWCNTs on the laminates were found out by performing the flexural tests on the specimens. The BWK laminates with the INT and TM knitting types with 0.4 wt% MWCNTs had almost same bending modulus and strength. 5% and 41% higher bending modulus and strength were gained with the BWK laminates with the interlock knitting type with 0.4-wt% MWCNTs compared to that was with the tuck type. 28.2% higher short beam strength and 57% higher Charpy impact energy were obtained with tuck&miss with 0.4-wt% MWCNTs (21.02 MPa and 6.34 Joule) compared to that was with the tuck knitting (16.39 MPa and 4.04 Joule).

Keywords

Plain, Interlock, Tuck and Tuck&miss knitting, Commingled fibers, Carbon nanotubes, Thermoplastic laminates, Flexural, short beam and Charpy impact test characteristics

Ethical Statement

This study is an original study; Scientific ethical principles and rules were followed at all stages of the study, including preparation, data collection, analysis and presentation of information.

Supporting Institution

We wish to acknowledge company of Shima Seiki Mfg. Ltd., Japan to supply BWK fabrics. This work was supported by the Research fund of Ondokuz Mayıs University (Project Numbers: PYO.MUH.1901.16.001 and PYO.MUH.1901.18.008).

Project Number

Project Numbers: PYO.MUH.1901.16.001 and PYO.MUH.1901.18.008

Thanks

We wish to acknowledge company of Shima Seiki Mfg. Ltd., Japan to supply BWK fabrics. This work was supported by the Research fund of Ondokuz Mayıs University (Project Numbers: PYO.MUH.1901.16.001 and PYO.MUH.1901.18.008).

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