Explore chapters and articles related to this topic
Copolymerization
Published in Charles E. Carraher, Carraher's Polymer Chemistry, 2017
Typically, NBR has a wide operational temperature range of about −40°C to 120°C, making it useful for extreme automotive applications as well as cooling units. Its good resistance to oils and other chemicals allows its use around ketones, hydrocarbon liquids, esters, and aldehydes. In the lab, many of the gloves are made of nitrile rubber. These gloves are also used in home and industrial cleaning and medically as examination and disposable gloves. Nitrile gloves have greater puncture resistance compared to “rubber gloves.” NBR's ability to withstand extreme temperatures and resistance to oils encourages their automotive uses as hoses, seals, belts, oil seals, and grommets. NBR is also used as adhesives, expanded foams, floor mats, and surface treatment of paper, synthetic leather, and footwear.
Personal protective equipment during COVID-19 pandemic: a narrative review on technical aspects
Published in Expert Review of Medical Devices, 2020
Sai Saran, Mohan Gurjar, Arvind Kumar Baronia, Ayush Lohiya, Afzal Azim, Banani Poddar, Namrata S. Rao
Nonpowdered gloves are preferred to powdered gloves and the use of double gloves is encouraged [16,17]. Appropriate materials for manufacturing gloves includes polyisoprene, polychloroprene, nitrile, natural rubber latex, or neoprene. The standards that need to be adhered to include the ASTM D6319-19 standard for nitrile examination gloves, ASTM D3578-19 for rubber examination gloves, and ASTM D5250-19 for polyvinyl chloride gloves. EN 374 certification on the gloves ensuring minimum level 2 protections (a glove which resists penetration to air and water, passing both air leak and water leak tests) are considered to be micro-organism resistant [57]. The updated ISO 374–5:2016 standard has introduced standards offering protection against micro-organisms, viruses in addition to fungi and bacteria, and further testing to ISO 16604 clothings for protection, against contact with blood and body fluids, is now required [16].
Chemical permeation of similar disposable nitrile gloves exposed to volatile organic compounds with different polarities Part 2. Predictive polymer properties
Published in Journal of Occupational and Environmental Hygiene, 2020
Robert N. Phalen, Anton V. Dubrovskiy, Brittany C. Brown, Aleksandre R. Gvetadze, Mariela Bustillos, Jessica Ogbonmwan
Carboxylation is associated with the chemical structure and cross-linking within the polymer. Nitrile gloves that have been carboxylated have been associated with improved chemical resistance to oils and solvents, as well as increased tensile strength (Phalen and Wong 2015). An observed increase in –COOH content should increase BT and decrease SSPR, as with AN content, which was in agreement with their findings.