2014年7月15日星期二

inversely proportional to the initial-glow in the dark dye

The principle of light sticks 
Luminous glow sticks are plastic toys, used extensively for concerts, festivals, emergency lighting, birthday PARTY, bars, wedding and other occasions. We know the truth? 
Emitting principle and luminescent materials 
Sticks using folding glow in the dark sheet plastic tubes set into the slender glass tube. In the breaking process, the slender glass tube A liquid flow, rapidly mixed with the liquid plastic tube B, a chemical reaction in a chemical reaction to the release of energy transfer fluorescent pigment molecules, fluorescent pigments in the form of visible light energy is released (from high energy state back to a more stable energy state), so that the light energy is converted to chemical energy. 
A liquid is colored with a different fluorescent pigment oxalate diester bis (CPPO) was dissolved in a solvent, the liquid B is dissolved in a solvent solution of hydrogen peroxide, the main solvent is an ester compound. Chemical reaction equation: 
Light sticks are safe 
Because copious liquid chemicals are polyethylene (plastic) packaging, so it will not cause too much harm to the human body. The light emitted by the light sticks chemical reaction dye excitation light emitted by a non-radioactive, instead of light emitted by the dye excitation radiation will not harm the human body. However, if the light sticks break, the liquid inside is painted in the body there is a problem because the chemical light sticks in direct contact with the skin will cause some damage to the human body, especially careful not to let children eating. 
Use light sticks 
Sticks from the plastic pipe with different liquids and the glass tube of two components, the use of sticks slightly bent, broken glass tube of the plastic tube, and gently shaken so that the two liquids mix to achieve optimum glow. 
Copious emission time 
Luminous sticks by the time the current four hours to 48 hours. 
Ambient temperature is inversely proportional to the length of the light sticks of time (ie: the higher the ambient temperature, the shorter the time luminous sticks), and inversely glow in the dark powder proportional to the initial brightness light sticks (ie: just fold higher brightness light when light sticks, emission time shorter). 
Based on these characteristics light sticks, glow sticks we have put in a low temperature environment (such as: fridge, freezer), it can inhibit the sticks of two liquids in chemical reactions can continue to be used after removal. 
Precautions 
Copious liquid inedible, and has a certain adhesion. If the leak: easily contaminated furniture, flooring, clothing, skin, etc., if the above situation must be cleaned; If copious liquid into the eyes should be washed with water or medical attention promptly. 
Therefore, prohibited knife or scissors torn light sticks of plastic pipe; non-distorted light sticks, light sticks in the liquid to prevent leakage. 
Transport and storage 
Sticks in the transport and storage process, should avoid exposure to high temperature and gravity impact or drop. So as not to affect the emission time and the brightness of the light fluorescent pigments manufacturer sticks, light sticks and avoiding break the glass cause light to cause light sticks light sticks early failure. 

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