紡織品對(duì)大氣中多環(huán)芳烴及顆粒物吸附能力的研究.pdf

1、 大連理工大學(xué)學(xué)位論文獨(dú)創(chuàng)性聲明 作者鄭重聲明：所呈交的學(xué)位論文，是本人在導(dǎo)師的指導(dǎo)下進(jìn)行研究工作所取得的成果。盡我所知，除文中已經(jīng)注明引用內(nèi)容和致謝的地方外，本論文不包含其他個(gè)人或集體已經(jīng)發(fā)表的研究成果，也不包含其他已申請(qǐng)學(xué)位或其他用途使用過(guò)的成果。與我一同工作的同志對(duì)本研究所做的貢獻(xiàn)均已在論文中做了明確的說(shuō)明并表示了謝意。 若有不實(shí)之處，本人愿意承擔(dān)相關(guān)法律責(zé)任。 學(xué)位論文題目：紡織品對(duì)大氣中多環(huán)芳烴及顆粒物吸附能力的研究

2、 作 者 簽 名 ： 日期：2017 年 6 月 13 日 紡織品對(duì)大氣中多環(huán)芳烴及顆粒物吸附能力的研究 - II - Study on the adsorption capacities for airborne PAHs and particles of different fabrics Ab

3、stract Particulate components is complex, small size, large specific surface area carry large amounts of toxic and harmful substances, including the widespread polycyclic aromatic hydrocarbons (PAHs). Human exposure to P

4、AHs and particles occur mainly via direct inhalation, dietary intake and dermal contact. Heavy occupational and environmental exposure to mixtures of PAHs and particles entail a substantial risk of disease in humans. Ski

5、n is exposed to the environment for a long time and the contact area is large. PAHs and particles can be adsorbed on the surface and enter into the body through hair pores. Clothing contact with the skin directly, and th

6、e PAHs and particles adsorbed on cloth also poses a threat to human health. Study the adsorption capacities for airborne PAHs and particles of different fabrics can provide important society and production values. In thi

7、s study, we studied and compared the adsorption capacities for airborne PAHs and particles of 6 fabrics, and analyzed the influential factors. The experimental 6 fabrics are cotton, linen, chiffon, rayon, mercerized cott

8、on and polyamide. The experimental results showed as follows: 1. Per unit of gram adsorption capacities for PAHs reduced in the sequence chiffon> polyamide > rayon cotton > cotton, mercerized cotton > linen.

9、The highest and the lowest of per unit of gram adsorption capacities were1332.33 ng· g-1 to 2744.76 ng· g-1 and178.06 ng· g-1 to 493.15 ng· g-1 for chiffon and linen, respectively. 2. The percentage o

10、f PAHs in fabrics reduced in the sequence 4r>3r>2r>5r>6r. The percentage of 3r and 4r in polyamide is 89.9%. The percentage of 3r and 4r in mercerized cotton is 71.9%. However, the percentage of 5r and 6r in

11、mercerized cotton is 17.9%, the highest. PAHs 6 kinds of fabrics are mainly from the gas phase in the textiles. 3. Fabrics PAHs were dominated by phenanthrene, fluoranthene, pyrene, and chrysene. The concentration of phe

12、nanthrene in the chiffon is the highest, ranging from 642.9 ng· g-1 to 800.2 ng· g-1. 4. Adsorption capacities for particles reduced in the sequence mercerized cotton > rayon > chiffon>polyamide>cot

13、ton>linen, and the sequence of average adsorption was winter>autumn>spring. 5. Fabrics of different adsorption capacity of airborne PAHs are resulted by different factors. With the increasing amount of o