What is the luminescence principle of the fluorescent bracelet?

Glow sticks. The chemicals in are mainly composed of three substances: peroxides.

Esters and fluorescent dyes.

To put it simply, the principle of glow stick luminescence is that peroxides and esters react, and the energy after the reaction is transferred to the fluorescent dye, which then fluoresces. A glass tube interlayer is usually placed in the glow stick on the market, and the inside and outside of the interlayer are isolated from peroxides and ester compounds, and after rubbing, the two compounds react to make the fluorescent dye glow. The liquid in the glow stick is inedible and has some stickiness.

If it leaks: it is easy to contaminate furniture, floors, clothes, etc., if the above conditions occur, they must be cleaned in time; If the liquid in the glow stick gets into your eyes, wash it off with water or seek medical attention. Therefore, it is strictly forbidden to break the plastic tube of the glow stick with a knife or scissors; It is strictly forbidden to twist the glow stick to prevent the liquid in the glow stick from leaking.

Direct contact with the chemicals in the glow sticks** can cause some damage to the human body. Special care should be taken not to allow children to accidentally ingest it. As long as the use method is correct and the outer packaging is not broken, the liquid glow stick will not cause much harm to the human body.

The glow stick is placed in the glass tube sandwich, and the oxide ester compound is isolated inside and outside, and the two compounds react to make the fluorescent dye glow. The light stick is made of folded plastic tube glass tube, glass tube fluorescent pigment and dioxalate; Soluble in solvent with hydrogen peroxide. If the indoor fluorescent tube is broken, 1 gram of iodine can be added to alcohol and then fumigated or directly dispersed on the ground with 1 gram of cubic meter of iodine for 8 12 hours, so that volatile or sublimated iodine and mercury in the air produce involuntary mercury iodide (hg+i2 hgi2).

To reduce the concentration of mercury vapor, the contaminated floor can also be rinsed with 5% 10% ferric chloride or 10% bleach. <>

The luminous principle of luminous powder - phosphor (commonly known as luminous powder) is usually divided into two categories: photoinduced energy storage luminous powder and radioactive luminous powder. Photoluminous energy storage luminous powder is a phosphor that stores light energy after being irradiated by natural light, sunlight light, ultraviolet light, etc., and slowly releases it in a fluorescent way after stopping light irradiation, so it can still see the luminescence at night or in a dark place, and the duration is as long as a few hours to more than ten hours. Radioactive luminous powder is mixed with radioactive substances in phosphors, and the rays emitted by radioactive substances are used to excite phosphors to emit luminescence.

People use the characteristics of luminous powder to shine for a long time in actual life, make a weak lighting source, have a special use in the military department, and apply this material to various switch signs on aviation instruments, clocks, windows, machines, door handles, etc., and can also be pressed into various symbols, components, supplies (such as power switches, sockets, fishing hooks, etc.) together with various translucent plastics. These light-emitting parts continue to glow at night or when they get up after an unexpected power outage or lightning, allowing people to distinguish the direction of their surroundings and bring convenience to their work and life. The ultra-fine particles of luminous materials are incorporated into textiles to make the colors more vivid, and children can wear luminous textiles to reduce traffic accidents.

At present, luminous materials at home and abroad are mainly made of ZNS, SRS and CAS, emitting green and yellow light. SRS and Cas materials are easy to deliquescent, which brings difficulties to a wide range of applications. Therefore, the market is mainly based on ZNS luminous materials.

However, its afterglow time is only 1 3 hours, and it is easy to deteriorate and blacken in strong light (such as sunlight), ultraviolet light and humid air, so its application in many fields is limited. Although the ZNS luminous powder co-activated with drill and copper has a long afterglow time, it has an infrared quenching phenomenon, and the afterglow is quickly extinguished under the irradiation of electric lights (including more red light).

Luminous silicone bracelet is harmless to the human body, luminous powder does not need power support, can automatically absorb any light source, and automatically glow in the dark, it is non-toxic, non-radiation, no explosion risk, is a new generation of green and environmentally friendly luminescent materials.

Luminous silicone wristband, also known as fluorescent silicone wristband, luminous silicone wristband. It is made by mixing luminous powder into a silicone material in a certain proportion, and then baking the bun to create a finished product.

Luminous powder is a luminescent substance with a special crystal structure, it has a strong ability to absorb light, absorb light, and emit light, when irradiated by natural light and lights, that is, absorb and store part of the light energy, and then slowly release it in the form of visible light in the dark.

After 5 minutes of illumination, the luminescent material can automatically emit light in the dark for more than 12 hours. The process of absorbing and emitting light can be repeated countless times, and the luminescence life is more than 20 years.

As long as the package is good, there will be no harm. It's okay if you don't break it.

The fluorescent bracelet contains phosphor, which is irradiated by natural light, sunlight, ultraviolet light, etc., stores the light energy, and slowly releases it in a fluorescent way after stopping the light irradiation, so the fluorescent bracelet will be brighter.

Phosphor: commonly known as luminous powder, it is usually divided into two categories: photoinduced energy storage luminous powder and radioactive luminous powder. Photoluminous energy storage luminous powder is a phosphor that stores light energy after being irradiated by natural light, daylight light, purple cavity external light, etc., and then slowly releases it in a fluorescent way after stopping light irradiation, so at night or in the dark, you can still see the silver grinding and glowing, and the duration is a few hours to more than ten hours.