this article explains the selection and use of seven kinds of chemical protective gloves

Hand is not only the direct tool of labor production, but also the first tool of labor production. 1t is not renewable, and it is difficult to repair the strain. Therefore, it is very important to choose appropriate gloves for safety protection. This paper introduces in detail the materials of gloves commonly used in laboratory and their use methods

for laboratory gloves, only safety protection is the first layer, and more attention should be paid to maintenance. 1n the laboratory, the common functions of gloves are classified as: antiskid (pockmarked surface), heat insulation, mechanical damage prevention, maintenance (no powder) and chemical corrosion prevention. Among the common gloves in the laboratory, the primary protection pays attention to heat insulation and mechanical damage, and the woven gloves are used; Professional protection pays attention to chemical corrosion; At the maintenance level, gloves can prevent skin dryness, irritation, allergy and even delay the healing of hand wounds

primary protective gloves: woven gloves made of knitted fabric, leather or synthetic materials; Anti cutting gloves made of Kevlar, Dyneema and steel; Heat proof gloves with thick leather, special synthetic coating, insulating cloth and glass wool

scope of protection: used for anti-wear, piercing, cutting, heat insulation, high temperature operation, etc

professional protection: chemical substances and skin irritating agents are easy to cause damage to hands when they are opened and used. Professional protection shall be carried out according to the characteristics of chemical substances

natural rubber (latex): natural latex is taken from tropical rubber tree, latex is milky white, high elastic, not easy to deform, durable and not easy to break; Natural rubber is a kind of natural polymer compound with polyisoprene as the main component, which is mainly used in tire industry

it can provide effective protection against alkalis, alcohols, and a variety of chemically diluted aqueous solutions, and can better prevent the corrosion of aldehydes and ketones. However, after using gloves, the operability is poor

polyvinyl chloride (PVC): PVC resin is formed by polymerization of vinyl chloride monomer and processed

it has strong chemical corrosion resistance, can protect almost all chemical dangerous goods, has antistatic performance, and is suitable for dust-free environment. Temperature range: – 4 ℃ ~ 66 ℃; High temperature 80 ~ 85 ℃, began to soften, high temperature decomposition of vinyl chloride (VCM) toxic

polyethylene (PE) gloves: polyethylene resin is formed by polymerization of ethylene monomer and then processed. Difference and PVC: polyethylene plastic bag products are non-toxic and can hold food; Polyvinyl chloride (PVC) plastic bags are poisonous and can’t touch food

disposable gloves can not withstand high temperature, and have the functions of waterproof, anti oil stain, anti bacteria, acid and alkali resistance; The glove is easy to operate, but it has poor air permeability and sweat

NBR gloves: NBR is prepared by emulsion polymerization of butadiene and acrylonitrile. The material has excellent oil resistance, high wear resistance, good heat resistance and strong adhesion. However, the low temperature resistance and ozone resistance are poor, the insulation performance is poor, and the elasticity is slightly low

gloves can prevent grease (including animal fat), xylene, polyethylene, aliphatic solvents and most pesticide formulations. They have certain antistatic properties and low chemical residues on the surface, so they are suitable for use in dust-free environment. Because of the poor elasticity, gloves are basically disposable

neoprene gloves: made of chloroprene (i.e. 2-chloro-1,3-butadiene) as the main raw material α- The synthetic rubber produced by polymerization has oil resistance, heat resistance, flame resistance, sunlight resistance, ozone resistance, acid and alkali resistance and chemical reagent resistance

gloves have a wide range of applications, and their comfort is similar to that of natural rubber. They have good protection for petrochemical products and lubricants, but they have poor cold resistance, so they are not suitable for low temperature use, and the products are not suitable for long-term storage

butyl rubber (11R) gloves: it is synthesized from isobutene and a small amount of isoprene, with chemical stability and thermal stability, the most prominent ones are air tightness and water tightness, long material life, and can be used as automobile inner tube, etc

due to the characteristics of the material, it is only used as the material of medium-sized unlined gloves. 1t is commonly used in glove box, anaerobic box, incubator and operation box. 1t has super durability for fluoric acid, aqua regia, nitric acid, strong acid, strong alkali, toluene, alcohol, etc

polyvinyl alcohol (PVA) gloves: polyvinyl alcohol, organic compound, white flake, flocculent or powdery solid, tasteless. Soluble in 95℃).

provides a high level of protection and corrosion resistance for a variety of organic chemicals, such as aliphatic, aromatic, chlorinated solvents, fluorocarbons and most ketones (except acetone), esters and ethers


Table 1 advantages and disadvantages of gloves made of various materials

Table 2 chemical resistance performance of gloves made of various materials

reference article:

[1] Xia Yuyu, [M] practical manual for chemists. Beijing: Chemical 1ndustry Press, 1999:81-82.

[2] Nelson Schlatter, Find suitable gloves [J], experiment and analysis, 2009.1:50-52

[3] Li Haixia. Selection of protective gloves [J], China personal protective equipment, 2004.6:37

[4] Cai Xin, Zhou Ming, basic characteristics and selection criteria of protective gloves [J], China personal protective equipment, 2003.3:27-29

[5] Chen Shaoying, on chemical laboratory safety protection [J], Chemical education, 2007.10:44-46

[6] Zhao Jingjing, et al. On gloves of chemical laboratory [J], science and technology innovation guide, 2011:128-129

[7] Yang Ling, discussion on personal protection of chemical laboratory, [J], laboratory research and exploration, 2011:236-238

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