The effect of cross-linking on the thermal properties of LDPE/wax blends

被引:49
作者
Mtshali, TN
Krupa, I
Luyt, AS
机构
[1] Univ N Qwaqwa, Sch Chem Sci, ZA-9866 Phuthaditjhaba, South Africa
[2] Slovak Acad Sci, Inst Polymer, Bratislava 84236, Slovakia
关键词
LDPE/wax blends; cross-linking; thermal analysis; DSC; TGA;
D O I
10.1016/S0040-6031(01)00636-0
中图分类号
O414.1 [热力学];
学科分类号
摘要
Thermal properties of cross-linked and uncross-linked low-density polyethylene (LDPE)/Fischer-Tropsch wax blends were investigated in this paper. For cross-linked blends, the gel content was determined. It was observed that the gel content increases with an increase in DCP concentration. The degree of crystallinity decreased with an increase in DCP concentration. The wax and LDPE were not mutually miscible at higher wax concentrations in the crystalline phase, as well as in the melt. The thermal stability of the blends decreased with an increase in wax content, and no direct correlation between thermal stability and cross-link density was observed. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:47 / 54
页数:8
相关论文
共 24 条
[1]   EFFICIENCY OF CHEMICAL CROSS-LINKING OF POLYPROPYLENE [J].
BORSIG, E ;
FIEDLEROVA, A ;
LAZAR, M .
JOURNAL OF MACROMOLECULAR SCIENCE-CHEMISTRY, 1981, A16 (02) :513-528
[2]  
BRINK A, 1969, J BR POLYM, V1, P323
[3]  
BRISKMAN BA, 1983, USP KHIM+, V52, P830
[4]  
Cho K, 1997, J APPL POLYM SCI, V63, P1265, DOI 10.1002/(SICI)1097-4628(19970307)63:10<1265::AID-APP4>3.0.CO
[5]  
2-I
[6]   High modulus polyethylene fibres:: Preparation, properties and modification by crosslinking [J].
Chodák, I .
PROGRESS IN POLYMER SCIENCE, 1998, 23 (08) :1409-1442
[8]  
GOWARIKER VR, 1993, POLYM SCI, P216
[9]   Thermoanalytical investigation of the cross-linkability of a hard paraffin wax in the presence of benzoyl peroxide [J].
Hlangothi, SP ;
Luyt, AS .
THERMOCHIMICA ACTA, 2000, 360 (01) :41-46
[10]   BENZOYL PEROXIDE AS A CROSS-LINKING AGENT FOR POLYETHYLENE [J].
KAMPOURIS, EM ;
ANDREOPOULOS, AG .
JOURNAL OF APPLIED POLYMER SCIENCE, 1987, 34 (03) :1209-1216