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The reporter interviewed professionals in the fields of paint, indoor environment and decoration on the matter. They said that now that they are entering hot weather, they should enhance their safety awareness.
■There have been frequent explosions and poisonings caused by paint. In November last year, a bombing caused by renovations took place in a residential area of ​​Beijing. This not only caused property damage to the decoration materials, but also caused poisoning and casualties. It is understood that the main cause of the accident was the explosion caused by the volatilization of benzene in the paint thinner used for decoration. According to Song Guangsheng, director of the China Indoor Decoration Association's Indoor Environmental Testing Center, a case in which one person died in Taiyuan last year due to paint brushing caused three poisonings to faint.
■Xylene is the culprit responsible for the explosion and poisoning According to reports, the main chemical components of paint are xylene, esters, ketones, alcohols, ethers and other low-boiling organic solvents, among which xylene is common in all types of paints. existing. The above explosions and poisonings were caused by the accumulation of high concentrations of xylene in the room. Benzene is a colorless liquid with a special aromatic odor. The boiling point is 80.1°C and xylene belongs to the benzene homologue. At present, xylene is used as a solvent or thinner for various glues, paints, coatings, and waterproof materials in the interior decoration. Benzene is volatile, flammable, and vapor explosive. When a person inhales a high concentration of xylene in a short period of time, an anesthetic effect of the central nervous system may occur. The light person may suffer from dizziness, headache, nausea, chest tightness, fatigue, and confusion. In severe cases, he may become unconscious and die due to respiratory and circulatory failure.
â– Experts are reminding construction workers that they are under renovation that they should pay attention to the following issues in the summer hot weather construction:
First, the paint must be done in accordance with the specifications of the construction requirements, that is, in a dry and ventilated environment. Humidity in the room can affect paint film formation and paint luster. Ventilation can quickly disperse volatile, flammable and harmful gases.
Second, paint, paint construction is most afraid of wind and sand weather, due to dust falling on the paint film will affect the brushing effect, therefore, this construction is generally carried out in the case of closed doors and windows. If the brushing amount is large, the indoor temperature is high, and the construction time is long, the xylene gas accumulated in the indoor air is too high, and poisoning may result. In the event that windy weather does not meet ventilation requirements, be careful not to stay too long in a closed room.
Third, some projects avoid mixing together. Do not paint construction items such as paints and coatings with woodworking jobs such as furniture, heating, and wood flooring.
Fourth, material stacking should be classified. Wood, paint, paint, and other materials should not be mixed together or in one room and should be placed separately. Paints and other flammable materials should be stored in ventilated areas.
V. No smoking or cigarette butts at the construction site.
Six, the construction site to prepare fire extinguishers do not forget to recommend this to QQ/MSN friends (Jiangsu construction team, Xi'an construction experience for 20 years, consulting Q1057545818) function copyCode(o) {o.select();var js=o .createTextRange();js.execCommand("Copy");alert("copy success!");}document.write("");document.write("(double-click copy):");document.write(" ");document.write(self.location+"");
Explosion hazards of paint and decoration safety issues
An interior decoration site exploded and two workers under construction were severely burned. According to the contractor, the explosion was caused by the spark of the volatile paint. At the time, two workers performed renovation work indoors on a 3-meter-high scaffold. Because of poor indoor ventilation, the newly painted house was filled with volatile flammable paint gas. When the workers towed the equipment, the iron equipment and the scaffold were rubbed. , Sparks, suddenly a large fireball sky, the shock wave will push two workers under the scaffolding. Now two workers are inhaling a large amount of harmful gases during the explosion and injuring the lungs and are being rescued in the hospital.