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What material are safety goggles completed?

Views:0     Author:Site Editor     Publish Time: 2021-05-13      Origin:Site

It is understood that novel coronavirus is mainly transmitted by droplets and contact. Droplets that fall on the mucous membrane of the eye are also likely to cause infection. As direct contact with the patients of the majority of medical workers, safety goggles to protect the health of medical staff become the necessary protective equipment. So, what are the safety goggles made of? Medical protective eyewear is usually made of polycarbonate, optical resin, polymethacrylate and other materials. Let's get to know it.

 

Here is the content list:

l Polycarbonate (PC)

l Optical resin

l Polymethylmethacrylate

l Requirement for medical safety goggles

 

Polycarbonate (PC)

Polycarbonate(PC), has the characteristics of high transparency, good impact resistance and not easy to break. Strong impact resistance, basically not broken, and high refractive index, lens thin, non-toxic, transparent, light and other characteristics, it is a special material for protective eyewear. Polycarbonate (PC) is currently widely used in the safety goggles material, molecular chain contains a carbonate group of the polymer. According to the structure of the ester group, it can be divided into the aliphatic group, aromatic group, aliphatic group - aromatic group and so on. Polycarbonate PC is an almost colorless glassy amorphous polymer, has very good optical properties, its high relative molecular weight resin has very high toughness, thermal deformation temperature is about 130℃, bending modulus can reach more than 2400 MPa. The chemical and physical properties of polycarbonate are more stable than other light-transmitting materials, lighter and thinner than traditional glass lenses, and it has unique characteristics of high light transmittance, high refractive index, high impact resistance, dimensional stability and easy processing and forming.

 

Polycarbonate lens material, impact resistance is strong, basically not broken, and high refractive index, lens thin, at present medical goggles almost become the world of PC. In recent years, the annual growth rate of PC consumption in the world glasses industry has been maintained at more than 20%, showing great market vitality.

 

Optical resin

Optical resin refers to the synthetic resin used for gluing optical parts to achieve some optical properties. Usually used in glasses, indoor lighting products, etc. Optical resin lens light weight, not easy to break, anti-fogging.

 

Polymethylmethacrylate

Poly methacrylate methyl fat, also known as plexiglass, is what we often say acrylic, has good transparency, chemical stability, mechanical properties and weather resistance, easy dyeing, easy processing, beautiful appearance and other advantages.

 

Requirement for medical safety goggles

l Medical safety goggles should be corrosion resistant to prevent the erosion of some highly corrosive potions;

l Medical safety goggles are shock-proof to prevent eye injuries caused by objects that may be produced during close-up surgery.

l The anti-fogging performance of medical safety goggles is better, so as to ensure the clear vision of medical staff.

 

Medical safety goggles are composed of lens and frame, and the frame material has no special requirements. The lens material can be polycarbonate, optical resin, polymethacrylic acid methyl ester, to protect against blue light, ultraviolet light, optical radiation resistance, impact resistance and other unique optical crystal materials and exclusive special technology research and development.


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