發(fā)布時(shí)間：2018-03-03 23:15

  本文選題：芳綸織物增強(qiáng)　切入點(diǎn)：復(fù)合防刺結(jié)構(gòu)　出處：《天津工業(yè)大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：隨著反恐主題逐漸全球化,不同國(guó)家對(duì)于防護(hù)服裝和用品的需求量都日漸增大,防刺用具在執(zhí)法機(jī)關(guān)工勤人員和普通民眾中都有廣泛的使用。我國(guó)對(duì)于槍械的管控十分嚴(yán)格,因此執(zhí)法人員受到的危害更多的是來自刀具等銳利武器,因此,開發(fā)出防刺性能滿足需求、穿著舒適的防刺服變得十分迫切。本課題在提高防刺材料性能的基礎(chǔ)上,對(duì)織物樹脂復(fù)合材料原料進(jìn)行優(yōu)選。先是通過比較實(shí)驗(yàn)室自制的5種聚氨酯樹脂膜的拉伸強(qiáng)度和延展性確定聚碳酸酯型聚氨酯脂T22和T23為性能更好的樹脂。再分別與芳綸平紋織物相復(fù)合,比較兩種復(fù)合材料的撕裂性能和單束纖維拔脫力,確定試驗(yàn)選用樹脂T22。以此為基礎(chǔ)對(duì)復(fù)合材料中樹脂膜的厚度進(jìn)行優(yōu)化。綜合了動(dòng)態(tài)防刺試驗(yàn)和靜態(tài)防刺試驗(yàn)的結(jié)果后,發(fā)現(xiàn)在樹脂涂覆量為120g/m2～150g//m2時(shí),材料的性能隨著厚度的增加而穩(wěn)定增加,當(dāng)繼續(xù)增加至180 g/m2時(shí),防刺性能反而會(huì)下降。對(duì)不同復(fù)合方式的材料進(jìn)行測(cè)試,在動(dòng)態(tài)和靜態(tài)防刺試驗(yàn)后,通過分析試驗(yàn)的結(jié)果可知,當(dāng)芳綸織物采用雙側(cè)涂覆樹脂的復(fù)合方式時(shí)材料的防刺性能更能符合標(biāo)準(zhǔn)要求。根據(jù)上述的試驗(yàn),結(jié)合防刺過程的分析,對(duì)復(fù)合防刺結(jié)構(gòu)的優(yōu)化組合進(jìn)行了研究。采用芳綸纖維布與芳綸纖維織物復(fù)合材料為基礎(chǔ)材料,在相同面密度,層數(shù)下,組合了三種不同的結(jié)構(gòu)分別為:芳綸布與復(fù)合材料的雙層式結(jié)構(gòu)、芳綸布與復(fù)合材料交替疊加的多層結(jié)構(gòu)和芳綸布、復(fù)合材料與原始芳綸布的"三明治"式結(jié)構(gòu)。穿刺結(jié)果表明:"三明治"結(jié)構(gòu)性能更為優(yōu)良,通過了國(guó)家公安部GA68-2008標(biāo)準(zhǔn)。對(duì)靶片斷口形貌進(jìn)行掃描電鏡分析,發(fā)現(xiàn)復(fù)合材料與裸布的斷口形貌有很大差別,芳綸纖維復(fù)合材料斷口多呈剪切破壞形式,而芳綸纖維多呈拉伸破壞形式。結(jié)合防刺過程分析,對(duì)復(fù)合材料和復(fù)合結(jié)構(gòu)的防刺進(jìn)行初步的探討,建立該類結(jié)構(gòu)的防刺模型。
[Abstract]:With the globalization of anti-terrorism theme, the demand for protective clothing and articles in different countries is increasing day by day, and thorn-proof appliances are widely used among the workers of law enforcement agencies and the general public. Our country has very strict control over firearms. Therefore, the harm to law enforcement personnel is more from sharp weapons such as knives. Therefore, it is very urgent to develop anti-burr performance to meet the demand and wear comfortable anti-burr clothing. This subject is based on improving the performance of anti-burr materials. Through comparing the tensile strength and ductility of five kinds of polyurethane resin films made in laboratory, the polycarbonate polyurethane resin T22 and T23 were determined as the better performance resins. Do not compound with aramid plain fabric, The tear properties and pullout force of the two composites were compared, and resin T22 was selected for the test. Based on this, the thickness of the resin film in the composite was optimized. It is found that when the resin coating is 120 g / m ~ 2 ~ 150 g / m ~ 2, the properties of the material increase steadily with the increase of thickness, but the anti-burr property decreases when the coating is increased to 180 g / m ~ 2. Through the analysis of the results of the test, it can be seen that the anti-burr property of the aramid fabric is better than that of the standard when the composite of double-coated resin is adopted. According to the above test, combined with the analysis of the anti-burr process, The optimum combination of composite anti-burr structure was studied. The composite material of aramid fiber cloth and aramid fiber fabric was used as the base material, under the same surface density and the number of layers, There are three different structures: the double layer structure of aramid fabric and composite material, the multilayer structure of aramid cloth and composite material and aramid fabric. The "sandwich" structure of the composite material and the original aramid cloth. The puncture results show that the structure and properties of the "sandwich" are better, and have passed the GA68-2008 standard of the State Ministry of Public Security. The morphology of the target fragment has been analyzed by scanning electron microscope (SEM). It is found that the fracture morphology of the composites is very different from that of bare cloth. The fracture surfaces of aramid fiber composites are mostly in the form of shear failure, while aramid fibers are mostly in the form of tensile failure. The anti-burring model of composite material and composite structure was established.
【學(xué)位授予單位】：天津工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TS176;TB332

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