The relationship among changes in microstructure, active sites behavior and properties in the propylene polymerization with a 4th generation Ziegler-Natta catalyst [PDF]
Polyolefins Journal, 2019 Three polypropylene samples (1-3) were synthesized with a 4th generation Ziegler-Natta catalyst in the presence of cyclohexyldimethoxymethylsilane (donor c), dicyclopenthyldimethoxysilane (donor d) and diisopropyldimethoxysilane (donor p), respectively ...
Shokoufeh Hakim +2 more
doaj +1 more source
Comparative study of intraperitoneal adhesions related to light-weight polypropylene mesh and type I polymerized and purified bovine collagen coated light-weight polypropylene mesh in rabbits [PDF]
Acta Cirúrgica Brasileira, 2017 Purpose: To compare the effectiveness of light-weight polypropylene mesh coated with polymerized and purified bovine type I collagen (Surgidry HNB) in the treatment of abdominal wall defect and the degree of adhesion formation.
Diego Paim Carvalho Garcia +8 more
doaj +1 more source
New strategies to improve results of mesh surgeries for vaginal prolapses repair – an update
International Brazilian Journal of Urology, 2015 The use of meshes has become the first option for the treatment of soft tissue disorders as hernias and stress urinary incontinence and widely used in vaginal prolapse's treatment.
Fernando Goulart Fernandes Dias +3 more
doaj +1 more source
Arab Journal of Basic and Applied SciencesDisposable masks, predominantly made from polypropylene, share similar environmental challenges as plastic waste due to their persistence and limited biodegradability.
Hadiyanto +6 more
doaj +1 more source
Recycling of Polyolefins for Multiple Lifecycles
Macromolecular Materials and EngineeringThe recycling of polyolefins for multiple life cycles is becoming a legislative requirement in the South African plastics industry. This study shows that this cannot be a blanket requirement for all polyolefins.
Megan Matthews, Albert van Reenen
doaj +1 more source
Update on complications of synthetic suburethral slings
International Brazilian Journal of UrologySynthetic suburethral slings have become the most widely used technique for the surgical treatment of stress urinary incontinence. Despite its high success rates, significant complications have been reported including bleeding, urethral or bladder injury,
Cristiano Mendes Gomes +7 more
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Recycling, 2021 Polypropylene (PP) has a high recycling potential. However, the properties of mechanically recycled PP (R-PP) have not been fully compared to those of virgin PP (V-PP).
Abdelhak Ladhari +3 more
doaj +1 more source
Adhesion prevention in reabsorbable polyethylene glycol hydrogel (Coseal®) coated polypropylene mesh in rabbits [PDF]
Acta Cirúrgica Brasileira, 2013 PURPOSE: To evaluate of postoperative adhesion prevention and inflammatory response to polypropylene mesh, coated with reabsorbable hydrogel of polyethylene glycol (Coseal®) in contact with small bowel in an experimental model in rabbits. METHODS: Twenty
Reynaldo Martins e Quinino +5 more
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Vibration welding of alpha and beta isotactic polypropylenes: Mechanical properties and structure
eXPRESS Polymer Letters, 2008 Propylene homo- and copolymers (both random and block types) with and without beta nucleation were injection moulded and the related plaques joined by linear vibration welding. The melt flow index (MFI) of the polypropylenes was different.
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Macromolecular non-releasing additives for safer food packaging: application to ethylene/α-olefins and propylene based polymers [PDF]
Polyolefins Journal, 2014 Some innovative solutions are proposed to the problem of the unavoidable physical migration of antioxidants from plastic films for packaging, in order to minimize the consequent undesirable effect of food contamination.
Maria Carmela Sacchi +7 more
doaj +1 more source