Mechanical Degradation of Polyethylene Plastic Film by Oxo-Degradable Additives

被引:2
|
作者
Yousef, Noha Said [1 ]
机构
[1] Pharos Univ, Fac Engn, Petrochem Dept, Alexandria 21311, Egypt
关键词
additives; linear low-density polyethylene; mechanical properties; oxo-degradation; polyethylene plastic film; thermal degradation; LOW-DENSITY POLYETHYLENE; BIODEGRADATION; POLYOLEFINS; CARBOXYLATES; LDPE;
D O I
10.3390/chemengineering7020017
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Utilizing oxo-degradable additives is an alternate, efficient method of managing plastic trash. To prepare the polymer chain for microorganisms to break down the fragments over time, oxo-degradation of plastics involves breaking the chain into small pieces. In this study, a film with a thickness of 35 mu m is created by mixing a mixture of linear low-density polyethylene (LLDPE) and d2w grade master batch (pro-oxidant). This thickness falls within the range of specifications for linear low-density polyethylene (LLDPE) films manufactured in petrochemical businesses. Additionally, is the study investigates how the mechanical characteristics of linear low-density polyethylene (LLDPE) are affected by the addition of a d2w pro-oxidant additive at five different weight percentages (0, 0.5, 1, 2, and 3% w/w). After thermal processing for films in an oven for one to seven days, the progress of LLDPE film is monitored by FTIR analysis to check for the presence of the carbonyl group by assessing the mechanical properties of the film. Tensile strength at break, tensile strength at yield, elongation at break, and elongation at yield are the mechanical qualities that are measured. Both the machine direction (MD) and the transverse direction (TD) are used to measure all properties. Following seven days of exposure to the oven at 70 degrees C, the mechanical properties of the film deteriorated. Both in the machine and transverse directions (MD and TD), the tensile strength at break dropped by 46.62% and 31.8%, respectively. Both in the machine and transverse directions (MD and TD), the tensile strength at yield dropped by 22% and 36.36%, respectively. Both machine and transverse elongation at break (MD and TD) were reduced by 21% and 38.36%, respectively. Following the addition of pro-oxidant and after thermo-oxidative treatment in an oven at 70 degrees C for 7 days, the results of the FTIR measurement for LLDPE did not significantly alter.
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页数:12
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