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光氧催化设备的聚氨酷涂料使用得到什么效果?

来源:http://www.jngdhb.com/   发布时间:2018-12-24 15:37:31
1、VOC的危害
1. Harm of VOC
VOC(VolatileOrganicCompounds)是指溶剂型涂猜中可蒸腾的与人体接触或吸入后可导致   的溶剂。聚氨酷涂猜中常含有VOC。VOC对人体的健康危害很大,它不但对皮肤具有侵蚀作用,并且对人体中枢神经系统、造血器官、呼吸系统有刺激和损坏作用,可引起头疼、恶心、胸闷、乏力、吐逆等症状,严峻时会抽搐、昏倒甚至去世。全球每年因运用有毒化学溶剂型涂料而构成的环境损坏和人体损伤带来的经济损失高达数百亿美元。因而,世界上首要的涂料生产国纷繁出台了约束VOC的排放污染法规。例如在   上,按照欧共体生态标志产品逐个有关VOC定量的规矩,人们家庭装修运用   多的一类涂料是30g/L,我国的涂料   强制性标准《室内装饰装修资料内墙涂猜中有害物质定量》规矩VOC不得超越200g/L。因而,开展低VOC光氧催化设备聚氨酷涂料是聚氨酷涂料开展的方向。
VOC (Volatile Organic Compounds) refers to the transpirable solvents that can be induced by human contact or inhalation in solvent-based painting. VOC is often found in polyurethane coating. VOC is harmful to human health. It not only erodes the skin, but also stimulates and damages the central nervous system, hematopoietic organs and respiratory system. VOC can cause headache, nausea, chest tightness, fatigue, vomiting and other symptoms. When severe, it may convulse, faint or even die. The economic losses caused by environmental damage and human injury caused by the use of toxic chemical solvent-based coatings are tens of billions of dollars every year in the world. As a result, the world's leading paint producers have issued numerous regulations to restrict VOC emissions. For example, according to the EC eco-label product-by-product regulations on VOC quantification, the most commonly used type of paint for home decoration is 30g/L. The compulsory standard of paint in China, "Quantitative quantification of harmful substances in interior wall painting of interior decoration materials" stipulates that VOC should not exceed 200g/L. Therefore, the development of polyurethane coatings for low VOC photocatalytic equipment is the direction of polyurethane coatings.
光氧催化设备
2、低VOC聚氨酷涂料的完结途径及运用
2. Completion and Application of Low VOC Polyurethane Cool Coatings
低VOC聚氨酷涂料的完结途径首要有三种: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 finish low VOC polyurethane coatings: waterborne polyurethane coatings, powder polyurethane coatings and high solid content polyurethane coatings.
1)水性聚氨酯防水涂料
1) Waterborne Polyurethane Waterproof Coatings
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构成乳液。
Waterborne polyurethane waterproof coating can be divided into two categories: water solubility and water emulsion. The water-borne polyamine molecules contain strong hydrophilic groups, which can be dissolved in water or dispersed uniformly in water to form emulsion.
2)水溶性聚氨酷防水涂料
2) Water Soluble Polyurethane Cool Waterproof Coatings
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   的温度下,按   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。二元醇类聚醚首要有:二轻端基聚环氧乙烷、二轻端基聚环氧丙烷嵌环氧乙烷等;三元醇类聚醚首要有:三轻端基聚环氧乙烷、三轻端基聚环氧丙烷嵌环氧乙烷等。
Photo-oxygen catalytic purifier is prepared by the reaction of water-soluble polyether compounds with excessive polyisocyanate cools (prepolymers), such as toluene diisocyanate cools (TD workers), hexamethylene diisocyanate cools (HD workers) at temperature. Water-soluble polyethers include dibasic alcohol polyethers, tribasic alcohol polyethers and other alcohol polyethers. Diol polyethers mainly include di-light-end polyethylene oxide, di-light-end polypropylene oxide embedded in ethylene oxide, etc. Ternary alcohol polyethers mainly include tri-light-end polyethylene oxide, tri-light-end polypropylene oxide embedded in ethylene oxide, etc.
3、运用
3, use
水性聚氨酷涂料大大减少VOC,挨近环境友好型涂料。它的分子结构和巨细,光氧催化废气净化器依据功能可在较大范围内调理;与其它乳胶涂料相比低温成膜性好,不需要成膜助剂,也不需要增塑剂,一般不需要外加乳化剂或分散剂;涂膜对塑料、木材、金属、混凝土等外表的附着力好,且抗磨性、耐冲击性好;简单通过交联反应进行改性,以前进耐溶剂性和抗化学性,也可提供高光泽涂膜,以及对颜料的杰出适应性。因为水分散系统聚氨酷涂料具有上述的杰出长处,它的运用范畴十分广泛。
Waterborne polyurethane cool coatings greatly reduce VOC and are close to environmentally friendly coatings. Compared with other latex coatings, it does not need film-forming additives or plasticizers, and generally does not need additional emulsifiers or dispersants. The film has good adhesion to plastics, wood, metal and concrete, and has good abrasion resistance and impact resistance. Modification by cross-linking reaction alone provides solvent resistance and chemical resistance, as well as high gloss coatings and excellent adaptability to pigments. Because the water dispersing system polyurethane cool coating has the above outstanding advantages, it has a wide range of applications.
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The above content is provided by the Photo-Oxygen Catalytic Equipment Friendship, more wonderful click: http://www.jngdhb.com, we adhere to the integrity-based operating outline, welcome your cooperation!
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