【正文】 109DOI: The online version of this article can be found at:Published by:Additional services and information for Journal of Fire Sciences can be found at:Email Alerts: Subscriptions: Reprints: Permissions: 外文翻譯 50 Fire Safety Assessmentof Halogenfree FlameRetardant PolypropyleneBased on Cone CalorimeterSHUQIN HE, YUAN HU*, LEI SONG AND YONG TANGState Key Lab of Fire ScienceUniversity of Science and Technology of ChinaHefei, Anhui 230026, People’s Republic of China(Received April 9, 2022)ABSTRACT: This study addresses the fire performance of polypropylenepounded with different flame retardants in the cone calorimeter testsand UL94 burning tests. The parameters measured include heat release rate,time to ignition, smoke, and CO/CO2yields, on the basis of which fire hazardanalysis is carried out. By injectionmolding different burnrated polypropyleneposites into television backenclosures and testing them in a fullscalecone calorimeter, we find that the one formulation of V0 rating in the verticalburning test shows excellent flame retardance.KEY WORDS: flame retardant, polypropylene, cone calorimeter, hazard.INTRODUCTIONPOLYPROPYLENE (PP) HAS gained wide application in such a great numberof fields that its end products cover numerous areas such as electronics,electrical appliances, textiles, furniture, transportation, architecture,and so on. However, due to its high flammability, substantial researchhas been carried out to improve its flame retardance. Amongthe halogenfree flame retardation methods of PP, severalapproaches are gaining growing attention: polymerlayered silicatenanoposites (PLSNs) [1,2], intumescent flame retardants (IFR)[3,4], and blending PP with different nonflammable polymers or metaloxides [5,6].Therefore, it makes sense to evaluate the fire hazard of thesynthesized materials so as to optimize the production of flameretardant PP and reduce the damage caused by fire. Fire risk ofmaterials is the potential likelihood of burning and the extent of hazardsresulting from burning of the material, such as ignitability, sustainmentand propagation of bustion, heat release, smoke/gas production,smoke obscuration, gas toxicity, and so on.In this study, we prepared five flame retardant PP positeswith different constituents and preparation methods based on ourprevious research [3,7,8], which were then subjected to UL94 tests anddifferently scaled cone calori。附 錄 47 附錄二室內(nèi)消火栓計(jì)算匯表節(jié)點(diǎn)管段節(jié)點(diǎn)水壓 mH2O節(jié)點(diǎn)流量L/s管段流量L/s管徑mm管段流速m/s單位沿程損失 i mH2O /m管長(zhǎng)/當(dāng)量 m沿程損失mH2O局部損失mH2O1 三通 5 1—2 5 125 2 三通 10 2—3 10 125 3 彎頭 10 3—4 10 125 4 三通 20 4—5 20 125 5 三通 20 5—6 20 125 6 三通 20 6—7 20 125 7 三通 20 7—8 20 125 8 彎頭 20 8—9 20 125 9 彎頭 20 9—10 20 125 10 止回閥 20 10—11 20 125 11 閘閥 20 11—12 20 125 水泵所需最小揚(yáng)程 mH2O附 錄 48 附錄三噴淋計(jì)算匯表節(jié)點(diǎn)管段流速系數(shù) Kc節(jié)點(diǎn)水壓 mH2O節(jié)點(diǎn)流量 L/s管段流量 L/s管徑mm管段流速 m/s單位沿程損失i mH2O /m管長(zhǎng)/當(dāng)量m沿程損失mH2O局部損失mH2O1 三通 1—2 25 2 彎頭 2—3 32 3 三通 3—4 32 4 三通 5 4—5 5 40 4 5 三通 5—6 50 6 三通 6—7 50 7 三通 7—8 50 8 三通 10 8—9 10 50 9 三通 1 9—10 70 10 三通 1 10—11 70 11 三通 1 11—12 70 12 三通 15 1 1213 15 70 13 三通 1 1314 70 14 三通 1 1415 70 15 三通 1516 80 16 彎頭 1617 80 17 1718 80 18 1819 80 19 彎頭 1920 80 20 彎頭 2021 80 21 閘閥 2122 80 22 附 錄 49 2223 80 23 2324 80 24 彎頭 2425 80 25 彎頭 2526 80 26 彎頭 2627 80 27 彎頭 2728 80 28 彎頭 2829 80 29 2930 80 水泵所需最小揚(yáng)程 mH2O外文翻譯 49 外文翻譯Journal of Fire SciencesFire Safety Assessment of Halogenfree Flame Retardant PolypropyleneBased on Cone CalorimeterShuqin He, Yuan Hu, Lei Song and Yong TangJournal of Fire Sciences 2022。工業(yè)建筑； 50 平方米，但不超過(guò) 1000 平方米的丙類物品庫(kù)房； 50 平方米，但不超過(guò) 1000 平方米的地下丙、丁類生產(chǎn)車間及地下物品庫(kù)房。地下民用建筑；、禮堂； 1000 平方米的地下商場(chǎng)、醫(yī)院、旅館、展覽廳及其他商業(yè)或公共活動(dòng)場(chǎng)所；、圖書(shū)、資料、檔案庫(kù)。 致 謝36致 謝參考文獻(xiàn)37參考文獻(xiàn)[1]GB500152022，建筑給水排水設(shè)計(jì)規(guī)范[S]．[2]GB5004595，高層民用建筑設(shè)計(jì)防火規(guī)范（2022 年版）[S]．[3]GB500842022，噴淋滅火系統(tǒng)設(shè)計(jì)規(guī)范（2022 年版） [S] ．[4]GB502422022，建筑給水排水及采暖工程施工質(zhì)量驗(yàn)收規(guī)范[S] ．[5] 王增長(zhǎng)．建筑給水排水工程（第五版）[m]．北京：中國(guó)建筑工業(yè)出版社，2022．[6] 李玉華．建筑給水排水工程設(shè)計(jì)計(jì)算[m]．北京：中國(guó)建筑工業(yè)出版社，2022．[7] 中國(guó)市政工程西南設(shè)計(jì)研究院．給水排水設(shè)計(jì)手冊(cè)第 1 冊(cè) 常用資料[m]．北京：中國(guó)建筑工業(yè)出 版社，2022．[8] 核工業(yè)第二研究設(shè)計(jì)院．給水排水設(shè)計(jì)手冊(cè)第 2 冊(cè) 建筑給水排水[m]．北京：中國(guó)建筑工業(yè)出版 社，2022．[9] 中國(guó)市政工程華北設(shè)計(jì)研究院．給水排水設(shè)計(jì)手冊(cè)第 12 冊(cè) 器材與裝置[m]．北京：中國(guó)建筑工業(yè)出版社，2022．[10]National Fire Protection Association． “Standard on Clean Agent Extinguishing Systems”，NFPA 2022[A]．National Fire Protection Association， Quincy， mA， 2022．[11]Underwriters Laboratories． Inc. “Standard for Halocarbon Clean Agent Extinguishing System Units”， UL 2166[A]．Underwriters Laboratories， Northbrook， IL， 1999．[12]申晉，朱維申等．三峽永久船閘高邊坡巖體裂隙分布的分形研究[J] ．閘壩工程水力學(xué)學(xué)報(bào)，1998，20（5）：35—39[13]毛昶熙，周名德等．閘壩工程水力學(xué)與設(shè)計(jì)管理[M] ．北京：水力電力出版社，1995：8—9[14]Tanzi，Vito．Theory and policy：A ment on Dixie and on current tax theory[J]．International Moary and Fund Staff Paper （IMF）， ， ， 1992： 957966[15]Rudiger Dorbusch．Policy making in the Open Economy[M]．Oxford University Press Inc， 1993： 149[16]Alao Martina．Some Economic Model of Fertility in Developing Countries and China’s Recent CoMParative Demographic Experience[C]．International Symposium on Population and Sustainable Development， Beijing， China， 1995： 27—29附 錄38附 錄附錄一《火災(zāi)自動(dòng)報(bào)警系統(tǒng)設(shè)計(jì)規(guī)范》保 護(hù) 對(duì) 象建筑高度超過(guò) 100m 的高層民用建筑建筑高度不超過(guò)100m 的高層民用建筑一類建筑建筑高度不超過(guò) 24m的民用建筑及建筑高度超過(guò) 24m 的單層公共建筑 床及以上的病房樓，每層建筑面積 1000 平方米及以上的門(mén)診樓； 3000 平方米的百貨樓