空氣凈化劑對空氣中甲醛去除效果的研究
發(fā)布時間：2018-12-17 03:07
【摘要】：隨著人們對室內環(huán)境空氣質量的越來越重視，各類空氣凈化劑也應運而生。這些產(chǎn)品的出現(xiàn)從某種程度上迎合了人們的需求，，各生產(chǎn)商、經(jīng)銷商趁機對其效果大肆宣揚，正面效果的鼓吹遠遠超過了實際效能，同時一些劣質產(chǎn)品也登上了空氣凈化治理的舞臺，帶來負面效應至今尚無定論。 為了能評價現(xiàn)時市面上空氣凈化劑的質量，本實驗從主要的流通領域購買主流品牌主導產(chǎn)品共24個批次，包括15種空氣凈化劑，6種光觸媒，3種生物酶，按照JC/T1074-2008方法的要求，測試其甲醛清除率。其中符合JC/T1074-2008要求，甲醛清除率達到75%或以上的只有6個樣品，合格率只有25%。而試驗艙內甲醛含量清除后符合GB/T18883-2002的規(guī)定的也只有9個，占樣品數(shù)的37.5%。 現(xiàn)在我國針對空氣凈化劑凈化效果性能測試的兩個主要方法均針對空氣凈化產(chǎn)品對空氣中本身已經(jīng)存在的甲醛的清除效果測試。而現(xiàn)在市面上的空氣凈化劑很大一部分是用于清除人造板、刨花板等裝修材料內部的游離甲醛，對于板材中游離甲醛的消除效果也沒有一個統(tǒng)一的方法進行測定。因此本實驗建立了一套檢測空氣凈化劑對板材中的甲醛含量清除效果的檢測方法。將制備好的寫空白字樣的素板、噴漆板和涂有空氣凈化劑的素板、噴漆板分別放入恒溫氣候露點儀中，關閉艙門，16小時后測定其甲醛含量，測定其甲醛去除效果。通過以上檢測，本次24個樣品中，能將板材清除到達到GB18580-2001的要求的樣品共有11個，占總樣品數(shù)的45.8%。 而針對空氣凈化劑的二次污染，本次試驗檢測了空氣凈化劑的pH值以及治理過程中的氨釋放量。其中pH值最少的只有3.2，呈明顯的酸性；最大的pH值為9.3。而治理過程中產(chǎn)生的氨氣24個樣品均符合GB/T18883-2002《室內空氣質量標準》中氨含量的指標的要求。但是有個別樣品釋放的氨含量達到了0.05mg/m3或以上，最高的氨含量超過了0.1mg/m3。
[Abstract]:As people pay more and more attention to indoor air quality, all kinds of air purifiers come into being. To some extent, the emergence of these products caters to the needs of people. Manufacturers and dealers take advantage of the opportunity to promote their effects, which greatly outweigh their actual effectiveness. At the same time, some inferior products are also on the stage of air purification. In order to evaluate the quality of air purifying agents on the market, 24 batches of mainstream brand leading products were purchased from major circulation fields, including 15 air purifiers, 6 photocatalysts, 3 biological enzymes. According to the requirements of JC/T1074-2008 method, the formaldehyde clearance rate was tested. Only 6 samples with 75% or more formaldehyde clearance rate and only 25% qualified rate were found to meet the JC/T1074-2008 requirement. The formaldehyde content in the test chamber was 37.5% of the sample number, and only 9 (37.5%) of the samples met the requirements of GB/T18883-2002. At present, the two main methods to test the performance of air purifying agent in our country are to test the effect of the air purifying product on the formaldehyde removal which already exists in the air. However, most of the air purifiers on the market are used to remove free formaldehyde from the interior of wood-based panels, particleboards and other decoration materials, and there is no uniform method to determine the effect of eliminating free formaldehyde in the plates. Therefore, a method for detecting the effect of air purifier on the removal of formaldehyde in sheet metal was established. The prepared blank plate, paint plate and air purifier board were put into the constant temperature dew point meter, closed the door, determined the formaldehyde content after 16 hours, and determined the formaldehyde removal effect. Through the above test, there are 11 samples which can remove the plate to GB18580-2001, accounting for 45.8% of the total sample number. In view of the secondary pollution of air purifier, the pH value of air purifier and the ammonia release during the treatment were detected. The lowest value of pH was 3.2, which was obviously acidic, and the maximum value of pH was 9.3. However, 24 samples of ammonia produced during the treatment process met the requirements of ammonia content in GB/T18883-2002 Indoor Air quality Standard. But some of the samples released ammonia up to 0.05mg/m3 or above, with the highest ammonia content exceeding 0.1 mg / m ~ (3).
【學位授予單位】：華南理工大學
【學位級別】：碩士
【學位授予年份】：2013
【分類號】：TU834.8
本文編號：2383548
[Abstract]:As people pay more and more attention to indoor air quality, all kinds of air purifiers come into being. To some extent, the emergence of these products caters to the needs of people. Manufacturers and dealers take advantage of the opportunity to promote their effects, which greatly outweigh their actual effectiveness. At the same time, some inferior products are also on the stage of air purification. In order to evaluate the quality of air purifying agents on the market, 24 batches of mainstream brand leading products were purchased from major circulation fields, including 15 air purifiers, 6 photocatalysts, 3 biological enzymes. According to the requirements of JC/T1074-2008 method, the formaldehyde clearance rate was tested. Only 6 samples with 75% or more formaldehyde clearance rate and only 25% qualified rate were found to meet the JC/T1074-2008 requirement. The formaldehyde content in the test chamber was 37.5% of the sample number, and only 9 (37.5%) of the samples met the requirements of GB/T18883-2002. At present, the two main methods to test the performance of air purifying agent in our country are to test the effect of the air purifying product on the formaldehyde removal which already exists in the air. However, most of the air purifiers on the market are used to remove free formaldehyde from the interior of wood-based panels, particleboards and other decoration materials, and there is no uniform method to determine the effect of eliminating free formaldehyde in the plates. Therefore, a method for detecting the effect of air purifier on the removal of formaldehyde in sheet metal was established. The prepared blank plate, paint plate and air purifier board were put into the constant temperature dew point meter, closed the door, determined the formaldehyde content after 16 hours, and determined the formaldehyde removal effect. Through the above test, there are 11 samples which can remove the plate to GB18580-2001, accounting for 45.8% of the total sample number. In view of the secondary pollution of air purifier, the pH value of air purifier and the ammonia release during the treatment were detected. The lowest value of pH was 3.2, which was obviously acidic, and the maximum value of pH was 9.3. However, 24 samples of ammonia produced during the treatment process met the requirements of ammonia content in GB/T18883-2002 Indoor Air quality Standard. But some of the samples released ammonia up to 0.05mg/m3 or above, with the highest ammonia content exceeding 0.1 mg / m ~ (3).
【學位授予單位】：華南理工大學
【學位級別】：碩士
【學位授予年份】：2013
【分類號】：TU834.8
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