Polipropilen Kopolimerinde (PPB) Kalsiyum Karbonat Tane Boyutunun Kısa Süreli Çekme Sürünme Özellikleri Üzerine Etkisi

Authors : Bülent AYDEMİR, Şenol ŞAHİN, Tülin ŞAHİN

Pages : 206-213

Doi:10.17100/nevbiltek.368459

View : 19 | Download : 9

Publication Date : 2018-12-30

Article Type : Research Paper

Abstract :Polypropylene block copolymer insert ignore into journalissuearticles values(PPB); composite materials consist of polypropylene and micro particle mineral filled materials that is calcium carbonate insert ignore into journalissuearticles values(CC);. The samples to be used in the tests were formed by adding calcium carbonate insert ignore into journalissuearticles values(CC); mineral in three different particle sizes. The different commercial CC minerals average particle sizes are 1.65 μm, 2.15 μm, 5 μm. The PPB composite materials are prepared at constant quantities of CC with content of 17.5 percentage of the volume ratio insert ignore into journalissuearticles values(or 38.89% in weight);. In this study, the short time tensile creep behavior of 17,5 vol. % different particle sizes CC filled PPB materials were investigated for different stress levels. Stress levels were selected from the stress below its yield strength. The stress levels are at 8 MPa, 16 MPa. As a result, it was found that the creep elongation or strain drop insert ignore into journalissuearticles values(∆ε); values decrease in the CC filled PPB materials according to the unfilled PPB material. In addition, it has been found that the absorbed energy levels reduce as the particle size increases.
Keywords : Creep, PPB, Particle size, Calcium carbonate