Properties of the Composition Based on Modified Polyethylenes

Shixaliyev Kerem Sefi

doi:10.11648/j.ajche.20190703.12

Abstract

The subject of this paper is to study the properties of compositions based on a modified polyethylene and a thermoplastic polyolefin structural features. As a result of the modification of polyethylene, the high elasticity of the material grows, which outwardly makes this polymer similar in complex to the physico-mechanical properties of rubber. The calculations made allowed us to estimate the parameters of the observed thermal transitions and to assign them to the mobility of specific elem ents of the structure.

Highlights

Significant deterioration of strength properties is observed in samples after 12 months of contact with Balakhan oil; comparatively worse properties are shown by HDPE samples containing TU and Thioalkofen-MBP, both in its deformation and strength properties
An analysis of the results shows that thioalkofen MBP and a mixture of amines can be introduced into HDPE in an amount of up to 0.2%
Oil swelling occurs to a lesser degree, except for coal-coal oil, in which the swelling of the initial HDPE in 12 months reaches 8.4% in the presence of diaphene-HH, during this period, the swelling is 2.16%

Summary

Structural Features of Polyolefin Thermoplastic Elastomers

Polyolefin thermoplastic elastomers were obtained on the basis of ethylene-propylene elastomers and high-density polyethylene by two methods, in the first case sulfurcontaining compounds (altaks, sulfur) were used as the modifying agent, in the second-MPC. “A” series thermoplastic elastomers were obtained by combining the initial polymer components in the melt on the rollers at a roll temperature of 433 ÷ 4530 K with a gap of ~ 0.2 mm between them. After melting the crystalline thermoplastic, EPDM and structuring agents were added. The composition formulation had the following composition (parts by weight): EPDM-100; HDPE-10 ÷ 80; dicumyl peroxide [1,2]. The thermoplastic elastomers of the “B” series were obtained in the same way as the “A”-type thermoplastic elastomers, according to the following formulation (wt.): EPDM-100; HDPE-10 ÷ 80; altaks 1.8; sulfur-2.0

Тhe Effect of Aggressive Liquids on the Basic Properties of Polyethylene

Result

Dielectric Properties of Stabilized Polyethylenes

Findings

Temperature Dependence of the Mechanical Loss Tangent in HDPE

Conclusion