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在线正规赌博,光氧催化设备的聚氨酷涂料的是如何实现的?

来源:http://www.educneves.com/   发布时间:2018-08-06 16:00:59
在光氧催化的诸多设备中应根据具体情况选用费用低、耗能少、无二次污染、尽量做到节约能耗,有利环保。如,废气净化行业代表性单位--CHO-91废气净化塔采用五重废气吸附过滤净化系统,废气净化设计周密、层层净化过滤废气,曾成功承建过奥运赛艇喷漆废气净化,
Many equipment of photocatalysis should be selected according to the specific situation of low cost, less energy consumption, no secondary pollution, as far as possible to save energy, conducive to environmental protection. For example, the --CHO-91 waste gas purification tower, the representative unit of the waste gas purification industry, uses five heavy gas adsorption and filtration purification system.
光氧催化废气处理设备 主要利用特制的高能高臭氧UV紫外线光束照射废气,裂解工业废气如:氨、三甲胺、硫化氢、甲硫氢、甲硫醇、甲硫醚、乙酸丁酯、乙酸乙酯、二甲二硫、二硫化碳和苯乙烯、硫化物H2S,VOC类、苯、甲苯、二甲苯的分子链结构,使有机或无机高分子恶臭化合物的分子链在高能紫外线的光束的照射下降解转变成低分子化合物,如CO2和H2O等。利用高能高臭氧UV紫外线光束分解空气中的氧分子及水分子产生游离氧(活性氧)和OH自由基,因游离氧和所携正负电子不平衡所以需与氧分子结合,进而产生臭氧。UV+O2---O_+O*(活性氧)+O2---O3(臭氧),众所周知臭氧对有机物具有极强的氧化作用,对工业废气及其它刺激性异味有立竿见影的清除效果。
The optical oxygen catalytic waste gas treatment equipment mainly uses the special high-energy high ozone UV ultraviolet light beam to irradiate the exhaust gas. The pyrolysis industrial waste gases such as ammonia, trimethylamine, hydrogen sulfide, methyl thiohydrine, methionine, methionine, butyl acetate, ethyl acetate, two a two sulfur, carbon disulfide and phenylene, sulfide H2S, VOC, benzene, toluene, etc. The molecular chain structure of dimethylbenzene makes the molecular chain of organic or inorganic polymer odour compounds degraded into low molecular compounds, such as CO2 and H2O, under the irradiation of high energy ultraviolet light. The high energy and high ozone UV ultraviolet rays are used to decompose oxygen molecules and water molecules in the air to produce free oxygen (active oxygen) and OH radicals. The oxygen molecules are combined with the free oxygen and the positive and negative electrons are not balanced, thus producing ozone. UV+O2---O_+O* (active oxygen) +O2---O3 (ozone), it is known that ozone has a very strong oxidation of organic matter, and has an immediate clearance effect on industrial waste gas and other irritating odors.
1、VOC的危害
在线正规赌博,光氧催化设备
1, the harm of VOC
VOC(VolatileOrganicCompounds)是指溶剂型涂料中可挥发的与人体接触或吸入后可导致疾病的溶剂。聚氨酷涂料中常含有VOC。VOC对人体的健康危害很大,它不但对皮肤具有侵蚀作用,而且对人体中枢神经系统、造血器官、呼吸系统有刺激和破坏作用,可引起头疼、恶心、胸闷、乏力、呕吐等症状,严重时会抽搐、昏迷甚至死亡。全球每年因使用有毒化学溶剂型涂料而造成的环境破坏和人体伤害带来的经济损失高达数百亿美元。因此,世界上主要的涂料生产国纷纷出台了限制VOC的排放污染法规。例如在国际上,按照欧共体生态标志产品一一有关VOC限量的规定,人们家庭装修使用最多的一类涂料是30g/L,我国的涂料国家强制性标准《室内装饰装修材料内墙涂料中有害物质限量》规定VOC不得超过200g/L。因此,发展低VOC在线正规赌博,光氧催化设备聚氨酷涂料是聚氨酷涂料发展的方向。
VOC (VolatileOrganicCompounds) refers to the solvent that can be volatilized in solvent coating and can cause diseases after inhalation or inhalation. VOC is often contained in the polyurethane coatings. VOC is very harmful to the health of the human body. It not only has erosive effect on the skin, but also stimulates and destroys the central nervous system, hematopoiesis and respiratory system of the human body. It can cause headache, nausea, chest tightness, fatigue, vomiting and other symptoms. It will cause convulsions, coma and even death when it is serious. The economic losses caused by environmental damage and human injury caused by the use of toxic chemical solvent coatings are as high as tens of billions of dollars every year. Therefore, the world's major paint producing countries have issued regulations restricting VOC emission pollution. For example, in the world, according to the provisions of the EC ecological logo products one by one related to the VOC limit, the most used kind of paint for family decoration is 30g/L. The national compulsory standard for the paint in our country, the limit of the harmful substances in the interior wall coating of interior decoration materials, stipulates that VOC does not exceed the 200g/L. Therefore, the development of low VOC photocatalytic catalytic equipment poly ammonia coating is the development direction of polyamine coatings.
2、低VOC聚氨酷涂料的实现途径及应用
The implementation and application of 2, low VOC polyurethane coating
低VOC聚氨酷涂料的实现途径主要有三种:水性聚氨酷涂料,粉末聚氨酷涂料,高固含量聚氨酷涂料。
There are three main ways to realize low VOC polyurethane coating: water-based polyurethane coating, powder polyurethane coating, high solid content polyurethane coating.
1)水性聚氨酯防水涂料
1) waterborne polyurethane waterproof coating
水性聚氨酷防水涂料可分为水溶性和水乳性两大类别,水性聚氨酷分子内部含有强亲水基团,能溶解于水或均一分散在水中形成乳液。
Water-borne polyurethane waterproof coating can be divided into two categories of water solubility and water emulsion. Water based polyamines contain strong hydrophilic groups, which can be dissolved in water or disperse in water to form emulsion.
2)水溶性聚氨酷防水涂料
2) water-soluble polyamin waterproof coating
光氧催化净化器在水溶性聚氨酷的主剂(预聚体)由过量的多异氰酸酷类化合物,如甲苯二异氰酸酷(TD工)、六亚甲基二异氰酸酷(HD工)等与水溶性聚醚化合物在一定的温度下,按一定的配比反应制得的。水溶性聚醚有二元醇类聚醚、三元醇类聚醚、及其它醇类聚醚。二元醇类聚醚主要有:二轻端基聚环氧乙烷、二轻端基聚环氧丙烷嵌环氧乙烷等;三元醇类聚醚主要有:三轻端基聚环氧乙烷、三轻端基聚环氧丙烷嵌环氧乙烷等。
The main agent (prepolymer) of light oxygen catalytic purifier in water-soluble polyamol (prepolymer) is prepared by a certain proportioning reaction at a certain temperature by excessive isocyanic acid cool compounds, such as toluene two isocyanic acid cool (TD), six methylene two isocyanic acid (HD) and water-soluble polyether compounds at a certain temperature. Water soluble polyether has diol polyether, three alcohol polyether, and its alcohol polyether. Diol polyethers are mainly composed of two light terminal groups, polyepoxide, polyepoxy propane and ethylene oxide, and three polyol polyols mainly include three light terminal polyepoxide, three light end groups, polyepoxide propane and ethylene oxide.
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