Introduction to nitrile gloves

Nitrile butadiene rubber is prepared by lotion polymerization of butadiene (H2C=CH-CH=CH2) and acrylonitrile (H2C=CH-CN). It is mainly produced by low-temperature lotion polymerization, and has the properties of two homopolymers. The butadiene component endows the copolymer with elasticity and cold resistance, while the acrylonitrile component has strong polarity. The - CN base enables the copolymer to have good chemical corrosion resistance, especially oil resistance (alkane oil). The oil resistance of rubber can be improved by increasing the content of acrylonitrile in rubber, but the elasticity and cold resistance will be reduced. Its products have good oil resistance, high wear resistance and good heat resistance.
Nitrile gloves can be divided into powder and powder free gloves. Nitrile gloves are 23cm and 30cm long; The thickness is 0.08~0.09mm, and the color is mainly blue. The main finished products are packed with 100 pcs per box, and the specifications are XS, S, M, L, XL.
Discuss the applicability of gloves in combination with the "Guidance on Penetration/Degradation Protection of Anser Gloves". Note that the Glove Protection Guide lists degradation and penetration data for gloves. The first square in each column uses three different color coding methods to indicate the overall level of degradation and penetration of each glove. Green indicates that the gloves are very suitable for use with the chemical; Yellow indicates that the gloves should be carefully put into use; Red indicates that it is prohibited to use the gloves together with the chemical. Capital letters represent grades. E: Excellent; VG: Very good; G: Good; F: General; P: Poor; NR: Not recommended.
Unlike latex gloves, nitrile gloves are insoluble in non-polar solvents, (It can effectively resist the non-polar reagents of alkanes and cycloalkanes, such as n-pentane, n-hexane, cyclohexane, etc. Most of these reagents are marked as green. It should be noted that for aromatic hydrocarbons, the protective performance of nitrile gloves varies greatly. For example, in benzene, the degradation grade P, the overall degradation and penetration grade of gloves are marked as red. In toluene, the degradation grade F, the penetration time is 34 minutes, and the penetration rate F, the mark is yellow Medium, degradation grade G, penetration time of 96 minutes, permeability of F, marked as green. 50% sodium hydroxide, 10% hydrochloric acid, 47% sulfuric acid (acid for storage battery), 30% hydrogen peroxide, etc. are marked as green, degradation grade E, and penetration time>360 minutes. Methanol, ethanol, n-propanol, pentanol, cyclohexanol and other alcohols are also marked as green. Nitrile gloves have poor or no protective performance against dimethylformamide, acetone, butanone, tetrahydrofuran, trichloromethane, dichloroethane, chlorobenzene, phenol, benzaldehyde, ethyl acetate, and are marked in red.