Durability of LDPE/UHMWPE Composites under Accelerated Degradation

被引：8

作者：

Zaharescu, Traian ^{[1
,2
,6
]}

Rapa, Maria ^{[3
]}

Blanco, Ignazio ^{[4
,5
]}

Borbath, Tunde ^{[2
,6
]}

Borbath, Istvan ^{[2
,6
]}

机构：

[1] Natl Inst Elect Engn INCDIE ICPE CA, Radiochem Ctr, Bucharest 030138, Romania

[2] ROSEAL SA, Harghita 535600, Romania

[3] Polytech Univ, Dept Mat Proc & Ecomet, Bucharest 060042, Romania

[4] Univ Catania, Dept Civil Engn & Architecture, Viale Andrea Doria 6, I-95125 Catania, Italy

[5] Univ Catania, UdR Catania Consorzio INSTM, Viale Andrea Doria 6, I-95125 Catania, Italy

[6] ROSEAL SA, Odorheiu Secuiesc 535600, Harghita, Romania

来源：

POLYMERS | 2020年 / 12卷 / 06期

关键词：

UHMWPE; LDPE; blends; oxidative degradation; chemiluminescence; DSC; MOLECULAR-WEIGHT POLYETHYLENE; LIVED FREE-RADICALS; THERMAL-OXIDATION; LIFETIME PREDICTION; POLYMER OXIDATION; BLENDS; STABILIZATION; POLYOLEFINS; RADIATION; PERFORMANCE;

D O I：

10.3390/polym12061241

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

This study presents a detailed analysis of thermal and radiation resistances of low density polyethylene (LDPE)/ultra-high molecular weight polyethylene (UHMWPE) blends containing hydroxyapatite as functional filler and rosemary acting as antioxidant against oxidative degradation. Three main procedures, chemiluminescence (CL), Fourier transform infrared spectroscopy (FTIR), and differential scanning calorimetry (DSC), were applied for the determination of the degree of degradation when these materials are subjected to heat and radiation action. The crystallinity was also assessed for the characterization of diffusion peculiarities. The contributions of the mixing components are discussed based on their oxidation strength. The activation energies required for the oxidative degradation of the studied formulations were calculated.

引用

页数：15

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