UV stability and radiation-crosslinking of linear low density polyethylene and low density polyethylene for greenhouse applications

被引：50

作者：

Basfar, AA ^{[1
]}

Ali, KMI ^{[1
]}

Mofti, SM ^{[1
]}

机构：

[1] King Abdulaziz City Sci & Technol, Atom Energy Res Inst, Riyadh 11442, Saudi Arabia

来源：

POLYMER DEGRADATION AND STABILITY | 2003年 / 82卷 / 02期

关键词：

LLDPE; LDPE; weathering; radiation; UV; gel content;

D O I：

10.1016/S0141-3910(03)00216-7

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Ultraviolet (UV) radiation stability and gamma-radiation crosslinking of linear low density polyethylene (LLDPE) and low density polyethylene (LDPE) for greenhouse film applications was investigated. Various combinations of primary antioxidant (i.e. Irganox 1010), secondary antioxidant (i.e. Irgafos 168), UV absorber (i.e. Chimassorb 81) and hindered amine light stabilizer (HALS) were used to prepare thin PE films (60 mum thick). The films were cross-linked by gamma-rays with doses of 20-200 kGy. Accelerated weathering test up to 1146 h and natural (outdoor) weathering up to 165 days were performed for the prepared films. In addition, gel content and mechanical properties of these films were determined. Improved UV stability was achieved with films of LLDPE and LDPE containing HALS along with other additives. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：229 / 234

页数：6

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