本文選題：尼龍6 + 玻纖增強復(fù)合材料　； 參考：《湖南工業(yè)大學》2017年碩士論文

【摘要】：在不同的聚合溫度下制備了三聚氰胺聚磷酸鹽(MPP),用FTIR、SEM、XRD、TG對所制備的MPP進行了表征。另外,在MPP的制備過程中加入正硅酸乙酯對其進行改性,制備了Si O2改性MPP阻燃劑(m MPP),用FTIR、SEM、XRD和TG對m MPP進行了表征。將m MPP、二乙基次磷酸鋁(ADP)、玻纖(GF)和尼龍6(PA6)熔融共混制得阻燃玻纖增強PA6復(fù)合材料(GFRPA6)。用萬能拉伸試驗機、氧指數(shù)儀和垂直燃燒儀分別對GFRPA6的力學和阻燃性能進行了表征。結(jié)果表明:MPP最佳的聚合溫度為310℃,m MPP粒子比MPP粒子小,呈斜方晶型結(jié)構(gòu);Si O2對MPP實現(xiàn)了較好的復(fù)合;隨著Si O2含量的增加,m MPP的熱穩(wěn)定性先增加后降低;GFRPA6復(fù)合材料的拉伸強度和彎曲強度呈現(xiàn)出先增加后降低的趨勢,當Si O2為MPP的6 wt%時,GFRPA6的拉伸強度最大,較MPP阻燃GFRPA6提高了7%,沖擊強度呈現(xiàn)出先減小后增加的趨勢。當阻燃劑為18wt%份時,GFRPA6的阻燃性能達到UL94 V-0級,極限氧指數(shù)均高于28。
[Abstract]:Melamine polyphosphate (MPP) was prepared at different polymerization temperatures. In addition, tetraethyl orthosilicate was added to the preparation of MPP, and Sio _ 2 modified MPP flame retardant was prepared. The m MPP was characterized by FTIR SEMX and TG. Flame retardant glass fiber reinforced PA6 composites were prepared by melt blending m MPP, diethylaluminophosphate (ADP), glass fiber (GF) and nylon 6 (PA6). The mechanical properties and flame retardancy of GFRPA6 were characterized by universal tensile tester, oxygen index instrument and vertical combustor. The results show that the optimum polymerization temperature is 310 鈩，

本文編號：1808533