發(fā)布時(shí)間：2019-05-12 03:19

【摘要】：介紹了裂化處治聚乙烯(PE)、聚丙烯(PP)類(lèi)生活廢舊塑料的方法。分別將原狀造粒生活廢舊塑料(RP)及裂化生活廢舊塑料(CRP)按6%及8%摻量,摻入茂名90#及中海油70#兩種基質(zhì)瀝青中制得生活廢舊塑料改性瀝青,對(duì)比試驗(yàn)研究了基質(zhì)瀝青及生活廢舊塑料改性瀝青的三大技術(shù)指標(biāo)(針入度、軟化點(diǎn)、延度)及存儲(chǔ)穩(wěn)定性、低溫彎曲性能、黏度和老化性能。用紅外光譜分析了裂化處治前后生活廢舊塑料以及改性前后瀝青的組成成分變化,研究了裂化處治生活廢舊塑料改性瀝青性能提高的機(jī)理。結(jié)果表明:各類(lèi)裂化處治生活廢舊塑料改性瀝青高溫穩(wěn)定性顯著提高,摻量6%條件下可使中海油70#基質(zhì)瀝青的軟化點(diǎn)由48.7℃提高到70℃以上;存儲(chǔ)穩(wěn)定性好,不離析;低溫彎曲、黏度、老化等性能未降低,與基質(zhì)瀝青性能相近。
[Abstract]:The method of treating polyethylene (PE), polypropylene (PP) waste plastics by cracking was introduced. Domestic waste plastic modified asphalt was prepared by adding raw granulated domestic waste plastic (RP) and cracking domestic waste plastic (CRP) into Maoming 90# and CNOOC 70# matrix asphalt at 6% and 8%, respectively. the modified asphalt of domestic waste plastic was prepared by adding Maoming 90# and CNOOC 70# matrix asphalt, respectively. The three technical indexes (penetration, softened point, ductility), storage stability, low temperature bending properties, viscosity and aging properties of matrix asphalt and domestic waste plastic modified asphalt were studied. The composition changes of domestic waste plastics and asphalt before and after cracking treatment were analyzed by infrared spectroscopy, and the mechanism of improving the properties of domestic waste plastics modified asphalt before and after cracking treatment was studied. The results show that the high temperature stability of CNOOC 70 # matrix asphalt can be increased from 48.7 鈩，

本文編號(hào)：2475063