Permeability of nitrile rubber, latex, polyurethane, and neoprene gloves to 18 antineoplastic drugs

1999 ◽  
Vol 56 (23) ◽  
pp. 2450-2453 ◽  
Author(s):  
Thomas H. Connor
Keyword(s):  
Nitrile Rubber ◽  
Antineoplastic Drugs ◽  
Rubber Latex

A New Process for the Preparation of Highly Saturated Nitrile Rubber in Latex Form

1992 ◽  
Vol 65 (1) ◽  
pp. 245-258 ◽  
Author(s):  
Dane K. Parker ◽  
Robert F. Roberts ◽  
Henry W. Schiessl
Keyword(s):  
Nitrile Rubber ◽  
Addition Method ◽  
Reaction Step ◽  
Rubber Latex ◽  
New Process ◽  
Potential Applications ◽  
New Form ◽  
By Products ◽  
Ozone Resistance

Abstract A novel process for the preparation of highly saturated nitrile rubber latex has been developed. This process directly converts NBR latex into HNBR latex in one reaction step. The key to the process is the efficient in-situ generation of diimide within the latex by the oxidation of hydrazine hydrate in the presence of a catalyst. At 40–70°C, diimide smoothly and selectively reduces the olefinic bonds while leaving other functionalities unaffected. The process operates at ambient pressures and produces nitrogen and water as by-products. HNBR latex produced by this process has been applied to the manufacture of superior heat-resistant gasketing via the “Beater-Addition” method. This unique new form of HNBR maintains the well known benefits of HNBR (e.g., solvent, heat, and ozone resistance, etc.) while expanding its potential applications into latex-related products.

scholarly journals Swelling of Elastomers in Solutions of TiO2 Nanoparticles

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Ludwig Vinches ◽  
Gérald Perron ◽  
Patricia Dolez ◽  
Kevin J. Wilkinson ◽  
Stéphane Hallé
Keyword(s):  
Chemical Properties ◽  
Mass Gain ◽  
Length Change ◽  
Large Mass ◽  
Nitrile Rubber ◽  
Rubber Latex ◽  
Protective Gloves ◽  
Nanoparticle Dispersions ◽  
Anisotropy Effect ◽  
And Chemical Properties

Elastomers used in protective gloves can be sensitive to the action of solvents used to disperse commercial solutions of nanoparticles. These effects may include the swelling of the polymer, leading to a modification of its mechanical and chemical properties. Modifications to the properties of the polymer will impact the protection provided by the protective gloves. The goal of this work was therefore to study the swelling of several elastomers when exposed to commercial solutions of nanoparticles. The study involved four elastomers and three commercial solutions of colloidal titanium dioxide (TiO2). Swelling was assessed by measurements of mass gain and length change. Tests were also performed with technical and ultrapure solvents corresponding to the liquid carriers. The solutions had a significant effect on the swelling of nitrile rubber, latex, and neoprene. A large mass gain was recorded for short immersion times, indicating a possible penetration of the nanoparticle liquid carrier into these elastomers. Length change measurements revealed a swelling anisotropy effect with nitrile rubber and latex in the solutions of colloidal TiO2. No effect was measured with butyl rubber. The results show that great care must be taken when selecting protective gloves for the handling of nanoparticle dispersions.

Novel self-crosslinking film from hydrogenated carboxylated nitrile rubber latex

2013 ◽  
Vol 131 (3) ◽  
pp. n/a-n/a ◽  
Author(s):  
Yang Han ◽  
Lixin Mao ◽  
Hongwei Meng ◽  
Liqun Zhang ◽  
Dongmei Yue
Keyword(s):  
Nitrile Rubber ◽  
Rubber Latex

scholarly journals Characterization of Blends of Virgin Nitrile Rubber and Compounded Nitrile Rubber Latex Waste Reclaimed with Urea: Part II - Physico-Mechanical Properties

2021 ◽  
Vol 7 (3) ◽  
pp. 733-737
Author(s):  
K.I.D.P. Perera ◽  
D.G. Edirisinghe ◽  
Laleen Karunanayake
Keyword(s):  
Mechanical Properties ◽  
Nitrile Rubber ◽  
Rubber Latex ◽  
Swelling Behaviour ◽  
Elongation At Break ◽  
Rubber Blends ◽  
The Past ◽  
Compression Set ◽  
Rubber Waste

Recycling of rubber waste materials in order to convert these to usable products is one of the main challenges in the rubber industry. Reclaiming of rubber waste and blending it with virgin rubber have increased during the past due to the growing concern on the environment and increase in the prices of synthetic rubbers. Hence, the aim of this study is to partially replace virgin nitrile rubber (NBR) with reclaimed compounded NBR latex waste to develop new rubber blends suitable for special applications. In this study, physico-mechanical properties, ageing performance and swelling behaviour of virgin NBR / reclaimed NBR blend vulcanizates were evaluated and compared with those of the control vulcanizate produced solely with virgin NBR. Results showed that replacement of 50% virgin NBR with reclaimed NBR retained 71-86% of tensile strength, elongation at break and resilience. Hardness and modulus of this blend vulcanizate increased by less than 18%, whereas abrasion volume loss and compression set increased by 27%. Ageing resistance is similar to that of the control vulcanizate. Interestingly, resistance to swelling in toluene and ASTM oil No.3 increased by 14% and 32%, respectively. Hence, the 50:50 virgin NBR / reclaimed NBR vulcanizate would be suitable for oil resistant applications.

Effects of cisplatin treatment on the rat neurohypophysis

1986 ◽  
Vol 44 ◽  
pp. 122-123
Author(s):  
J.M. Fadool ◽  
P.J. Boyer ◽  
S.K. Aggarwal
Keyword(s):  
Side Effects ◽  
Urine Output ◽  
Morphological Changes ◽  
Limiting Factor ◽  
Antineoplastic Drugs

Cisplatin (CDDP) is currently one of the most valuable antineoplastic drugs available. However, it has severe toxic side effects of which nephrotoxicity is the major dose limiting factor in its use. It induces morphological changes in the kidney with hampered urine output. The present study is an effort to determine the influence of the drug on the neurohypophysis for any antidiuretic effects on the kidney.

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