Tài liệu Nghiên cứu sự biến đổi độ bền đường may trên trang phục quân đội

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Chapter 2: This chapter is presented the theoretical basis of the contents related to the research topic such as garment sewing materials (fabric), bonding materials (sewing thread) and some other factors. Chapter 3: Presents the experimental studies of the thesis. Mention the object, content, research method. The research content is presented in the thesis as follows: Studying the characteristics and properties of some common sewing threads currently applied in garment. Study of seam durability from production to use with sewing thread applied on the fabric being used in current military apparel. Study of seam durability when changing the type of sewing thread from production to use. From there, determine the type of sewing thread suitable for military uniforms to ensure seam durability, and save production costs. In this study, the thesis has used the research methods mentioned in chapter 3, researched on 6 fabrics and 6 common thread types in the market by two methods according to the technical standard ISO 13935- 1 and ISO 13935-2 from production to use, combined with experimental data processing using microsoft excel 2016 software to analyze the results of the thesis. The tests of the thesis are carried out in the laboratory of the Technical - Inspection Department/Department of Military Supplies and at the companies: 28 Corporation One Member Limited Liability company, Det May 7 Joint Stock Company. Chapter 4: Presents the results of surveying the type of thread that has a durability suitable for the type of sewing thread to ensure the research objectives, and to ensure vi the economy when it is possible to reduce production costs through the selection of sewing thread. effective auxiliary materials (sewing thread). Through the process of writing this thesis, I myself have cultivated and learned a lot of knowledge and skills not only in my professional work but also in many different fields. Help me become more mature in work as well as in life. 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ĈһFWUѭQJÿӝ bӅQFѫKӑc cӫa vҧi ......................................................13 2.1.4. ĈһFÿLӇm cӫa mӝt sӕ loҥi vҧi sӱ dөng trong may mһFTXkQÿӝi .....14 2.2. Giӟi thiӋu vӅ chӍ may [16] [17].....................................................................17 2.2.1. &iFNKiLQLӋPFѫEҧn vӅ chӍ may.....................................................17 2.2.2. Mӝt sӕ ÿһc WUѭQJFѫEҧn cӫa chӍ may ..............................................17 2.2.3. ĈһFÿLӇPWtQKFKҩt cӫa mӝt sӕ loҥi chӍ may [16] [19] .....................18 2.3. 3KѭѫQJSKiSOLrQNӃt chi tiӃt sӱ dөng chӍ may .............................................19 ix 2.3.1. &iFQKyPPNJLPD\FѫEҧn ...............................................................19 2.3.3. &iFFKӭFQăQJFѫEҧn cӫDÿѭӡng may .............................................22 2.3.4. Ĉӝ bӅn cӫDÿѭӡQJPD\WUrQYұt liӋu ................................................22 &+ѬѪ1*1*+,Ç1&ӬU THӴC NGHIӊM ..................................................25 3.1. NӝLGXQJQJKLrQFӭu .....................................................................................25 3.2. 3KѭѫQJSKiSQJKLrQFӭu...............................................................................25 3.2.1. 3KѭѫQJSKiSQJKLrQFӭXOêWKX\ӃWSKkQWtFKWәng hӧSSKkQORҥLYj hӋ thӕQJKyDOêWKX\Ӄt. ......................................................................................25 3.2.2. 3KѭѫQJSKiSQJKLrQFӭu thӵc nghiӋm:............................................26 &+ѬѪ1*.ӂT QUҦ THӴC NGHIӊ09¬%,ӊN LUҰN ............................37 4.1. KӃt quҧ khҧRViWOӵa chӑn mӝt sӕ loҥi chӍ PD\iSGөng trong luұn YăQ .....37 4.2. KӃt quҧ khҧRViWFiFORҥi vҧi sӱ dөng trong dӋWPD\TXkQÿӝi .....................37 4.3. KӃt quҧ kiӇPWUDÿӝ bӅQNpRÿӭWÿӕi vӟLÿѭӡng may vӟi tӯng loҥi vҧi theo SKѭѫQJSKiSVWULS ......................................................................................................38 4.3.1. Ĉӝ bӅQÿѭӡQJPD\WUrQYҧi Gabadin peco K08 ...............................38 4.3.2. Ĉӝ bӅQÿѭӡQJPD\WUrQYҧi Gabadin len 50/50 ...............................40 4.3.3. Ĉӝ bӅQÿѭӡQJPD\WUrQYҧi Gabadin len 70/30 ...............................42 4.3.4. Ĉӝ bӅQÿѭӡQJPD\WUrQYҧi Popeline pevi K13 ...............................44 4.3.5. Ĉӝ bӅQÿѭӡQJPD\WUrQYҧLFKpRFYFLQORDQJ. .........................46 4.3.6. Ĉӝ bӅQÿѭӡQJPD\WUrQYҧi Tropical in loang K20 .........................48 4.3.7. ĈiQKJLiNӃt quҧ thӱ nghiӋPWKHRSKѭѫQJSKiSVWULS .....................50 4.4. KӃt quҧ kiӇPWUDÿӝ bӅQNpRÿӭWÿѭӡQJPD\ÿӕi vӟi tӯng loҥi vҧLWKHRSKѭѫQJ SKiS*UDE ..................................................................................................................53 4.4.1. KӃt quҧ kiӇPWUDÿӝ bӅQNpRÿӭWÿѭӡQJPD\WUrQYҧi Gabadin peco .WKHRSKѭѫQJSKiSJUDE ..............................................................................53 4.4.2. KӃt quҧ kiӇP WUD ÿӝ bӅQ NpR ÿӭW ÿѭӡQJ PD\ WUrQ Yҧi Gabadin len WKHRSKѭѫQJSKiSJUDE ...........................................................................55 4.4.3. KӃt quҧ kiӇP WUD ÿӝ bӅQ NpR ÿӭW ÿѭӡQJ PD\ WUrQ YjL *DEDGLQ OHQ WKHRSKѭѫQJSKiSJUDE ...........................................................................57 4.4.4. KӃt quҧ kiӇPWUDÿӝ bӅQNpRÿӭWÿѭӡQJPD\WUrQYjL Popeline pevi .WKHRSKѭѫQJSKiSJUDE ..............................................................................59 4.4.5. KӃt quҧ kiӇPWUDÿӝ bӅQNpRÿӭWÿѭӡQJPD\WUrQYҧLFKpRFYFLQORDQJ K20 theo phѭѫQJSKiSJUDE ..............................................................................61 x 4.4.6. KӃt quҧ kiӇPWUDÿӝ bӅQNpRÿӭWÿѭӡQJPD\WUrQYҧi Tropical in loang .WKHRSKѭѫQJSKiSJUDE ..............................................................................63 4.4.7. ĈiQKJLiNӃt quҧ thӱ nghiӋPWKHRSKѭѫQJSKiSJUDE .....................65 4.5. KhҧRViWJLiWUӏ kinh tӃ cӫDÿӅ WjL ..................................................................67 KӂT LUҰN ..............................................................................................................72 7¬,/,ӊU THAM KHҦO ......................................................................................74 PHӨ LӨ&7LrXFKXҭn kӻ thuұt ISO 13935-1:2014 .........................................76 PHӨ LӨC 2: 7LrXFKXҭn kӻ thuұt ISO 13935-2:2014 .........................................88 PHӨ LӨC 3: BҧQJEiRJLiFKӍ may cӫDF{QJW\3KRQJ3K~QăP ...........101 /é/ӎ&+75Ë&+1*$1* ..................................................................................103 48È75Î1+Ĉ¬27ҤO ......................................................................................103 48È75Î1+&Ð1*7È& ...................................................................................103 xi '$1+0Ө&&È&+Î1+ +uQK&ҩXWU~Fÿѭӡng may thҳWQ~W ................................................................5 +uQK4X\WUuQKWҥRPNJLPD\WKҳWQ~W>@ ..................................................21 +uQK 3.1.Mүu thӱ nghiӋm vӟLÿѭӡQJPD\YjFiFFKӍ dүn cӫa mүu thӱ ...................28 +uQK0үu thӱ nghiӋm ± phҫn gҥch cҳt bӓ ..........................................................28 +uQK0үu thӱ KRjQthiӋQÿӇ thӱ nghiӋPWKHRSKѭѫQJSKiSVWULS .....................29 +uQK0үu thӱ nghiӋm thӵc tӃ WKHRSKѭѫQJSKiSVWULS ......................................30 +uQK0үXWKtQJKLӋPFy ÿѭӡQJPD\YjFKӍ dүn cҳt mүu thӱ WKHRSKѭѫQJSKiS Grab ...........................................................................................................................31 +uQK0үu thӱ nghiӋm sau khi cҳWWKHRKѭӟng dүn .............................................32 +uQK+ѭӟng dүn lҳp mүXWKtQJKLӋPYjRFiFQJjPNҽp ...................................33 +uQK0үu thӱ nghiӋPWKHRSKѭѫQJSKiSJUDE ..................................................33 +uQK%LӇXÿӗ thӇ hiӋn lӵFNpRÿӭWÿѭӡnJPD\WUXQJEuQKFӫDFiFORҥi chӍ WUrQFiF loҥi vҧLÿѭӧc khҧRViWÿѫQYӏ: N) .............................................................................50 +uQK%LӇXÿӗ thӇ hiӋn lӵFNpRÿӭWÿѭӡQJPD\WUXQJEuQKFӫDFiFORҥi chӍ WUrQFiF loҥi vҧLÿѭӧc khҧRViWVDXgiһWÿѫQYӏ: N) ..............................................................51 +uQK%LӇXÿӗ thӇ hiӋn lӵFNpRÿӭWÿѭӡQJPD\WUXQJEuQKFӫDFiFORҥi chӍ thӱ nghiӋPWUrQFiFPүu vҧi thӱ nghiӋPWKHRSKѭѫQJSKiSJUDEĈѫQYӏ: N) .............65 +uQK%LӇXÿӗ thӇ hiӋn lӵFNpRÿӭWÿѭӡQJPD\WUXQJEuQKFӫDFiFORҥi chӍ thӱ nghiӋPWUrQFiFPүu vҧi thӱ nghiӋm sau giһWWKHRSKѭѫQJSKiSJUDEĈѫQYӏ: N) 65 xii '$1+0Ө&&È&%Ҧ1* Bҧng 1.1. Bҧng thӕQJNrPӝt sӕ loҥi vҧLÿDQJVӱ dөQJÿӇ PD\TXkQSKөFTXkQÿӝi hiӋn nay (vҧi dӋt thoi) .................................................................................................4 Bҧng 1.2. ThiӃt bӏ WKtQJKLӋPYjWK{QJVӕ kӻ thuұt ....................................................6 BҧQJ7tQKFKҩt vұWOêYjKyDKӑc cӫa mӝt sӕ loҥL[ѫ ........................................10 BҧQJĈһFÿLӇm mӝt sӕ loҥi chӍ may ...................................................................18 Bҧng 2.3. Bҧng thӇ hiӋn mӝt sӕ ÿһFÿLӇPFѫEҧn cӫa mӝt sӕ loҥi chӍ sӱ dөQJÿӇ QJKLrQ cӭu .............................................................................................................................19 Bҧng 4.1.KӃt quҧ ÿiQKJLiÿӝ bӅQÿӭt cӫa mӝt sӕ loҥi chӍ may ...............................37 Bҧng 4.2.KӃt quҧ ÿiQKJLiÿӝ bӅQNpRÿӭWEăQJYҧi cӫa mӝt sӕ loҥi vҧi .................38 Bҧng 4.3.KӃt quҧ [iFÿӏnh lӵc lӟn nhҩWOjPÿӭWÿѭӡQJPD\WUrQYҧi Gabadin peco .ÿӕi vӟLFiFORҥi chӍ ÿѫQYӏ: N) .........................................................................38 Bҧng 4.4. KӃt quҧ WtQKFiFÿһFWUѭQJWKӕQJNrFѫEҧQÿӕi vӟi lӵFNpRÿӭWÿѭӡng may WUrQYҧL*DEDGLQSHFR.WKHRSKѭѫQJSKiSVWULS .................................................39 Bҧng 4.5. KӃt quҧ kiӇm tra lӵc lӟn nhҩWOjPÿӭWÿѭӡQJPD\WUrQYҧi gabadin peco .WKHRSKѭѫQJSKiSVWULSPүu thӱ sau giһt. ........................................................39 Bҧng 4.6.BҧQJWtQKWRiQFiFÿһFWUѭQJWKӕQJNrFѫEҧn cӫa mүu thӱ nghiӋm sau giһt ÿӕi vӟLÿѭӡQJPD\WUrQYҧi Gabadin peco K08 ........................................................40 Bҧng 4.7.KӃt quҧ kiӇm tra lӵc lӟn nhҩWOjPÿӭWÿѭӡQJPD\WUrQYҧi Gabadin len 50/50 WKHRSKѭѫQJSKiSVWULS .............................................................................................40 Bҧng 4.8.BҧQJWtQKWRiQFiFÿһFWUѭQJWKӕQJNrFѫEҧn cӫa mүu thӱ nghiӋPÿӕi vӟi ÿѭӡQJPD\WUrQYҧi Gabadin len 50/50 .....................................................................41 Bҧng 4.9.KӃt quҧ kiӇm tra lӵc lӟn nhҩt ljPÿӭWÿѭӡQJPD\WUrQYҧi Gabadin len 50/50 WKHRSKѭѫQJSKiSVWULSPүu thӱ sau giһWÿѫQYӏ: N) ..............................................41 Bҧng 4.10.BҧQJWtQKWRiQFiFÿһFWUѭQJWKӕQJNrFѫEҧn cӫa mүu thӱ nghiӋm sau giһt ÿӕi vӟLÿѭӡQJPD\WUrQYҧi Gabadin len 50/50 ........................................................42 xiii Bҧng 4.11.KӃt quҧ kiӇm tra lӵc lӟn nhҩWOjPÿӭWÿѭӡQJPD\WUrQYҧi Gabadin len WKHRSKѭѫQJSKiSVWULSÿѫQYӏ: N) .................................................................42 Bҧng 4.12. BҧQJWtQKWRiQFiFÿһFWUѭQJWKӕQJNrFѫEҧn cӫa mүu thӱ nghiӋPÿӕi vӟi ÿѭӡQJPD\WUrQYҧi Gabadin len 70/30 .....................................................................43 Bҧng 4.13.KӃt quҧ kiӇm tra lӵc lӟn nhҩWOjPÿӭWÿѭӡnJPD\WUrQYҧi Gabadin len WKHRSKѭѫQJSKiSVWULSPүu thӱ sau giһWÿѫQYӏ: N) ....................................43 Bҧng 4.14.BҧQJWtQKWRiQFiFÿһFWUѭQJWKӕQJNrFѫEҧn cӫa mүu thӱ nghiӋm sau giһt ÿӕi vӟLÿѭӡQJPD\WUrQYҧi Gabadin len 70/30 ........................................................44 Bҧng 4.15.KӃt quҧ kiӇm tra lӵc lӟn nhҩWOjPÿӭWÿѭӡQJPD\WUrQYҧi Popeline pevi .WKHRSKѭѫQJSKiSVWULSÿѫQYӏ: N) ...................................................................44 Bҧng 4.16.BҧQJWtQKWRiQFiFÿһFWUѭQJWKӕQJNrFѫEҧn cӫa mүu thӱ nghiӋPÿӕi vӟi ÿѭӡQJPD\WUrQYҧi Popeline pevi K13 .....................................................................45 Bҧng 4.17.KӃt quҧ kiӇm tra lӵc lӟn nhҩWOjPÿӭWÿѭӡQJPD\WUrQYҧi Popeline pevi .WKHRSKѭѫQJSKiSVWULSPүu thӱ sau giһWÿѫQYӏ: N) ......................................45 Bҧng 4.18.BҧQJWtQKWRiQFiFÿһFWUѭQJWKӕQJNrFѫEҧn cӫa mүu thӱ nghiӋm sau giһt ÿӕi vӟLÿѭӡQJPD\WUrQYҧi Popeline pevi K13 ........................................................46 Bҧng 4.19.KӃt quҧ kiӇm tra lӵc lӟn nhҩWOjPÿӭWÿѭӡng may WUrQYҧLFKpR&9&LQ ORDQJ.WKHRSKѭѫQJSKiSVWULSÿѫQYӏ: N) .........................................................46 Bҧng 4.20.BҧQJWtQKWRiQFiFÿһFWUѭQJWKӕQJNrFѫEҧn cӫa mүu thӱ nghiӋPÿӕi vӟi ÿѭӡQJPD\WUrQYҧL&KpR&9&LQORDQJ. ...........................................................47 Bҧng 4.21.KӃt quҧ kiӇm tra lӵc lӟn nhҩWOjPÿӭWÿѭӡQJPD\WUrQYҧLFKpo CVC in loang K20, mүu thӱ sau giһWÿѫQYӏ: N)...................................................................47 Bҧng 4.22.BҧQJWtQKWRiQFiFÿһFWUѭQJWKӕQJNrFѫEҧn cӫa mүu thӱ nghiӋm sau giһt ÿӕi vӟLÿѭӡQJPD\WUrQYҧLFKpR&9&LQORDQJ. ...............................................47 Bҧng 4.23.KӃt quҧ kiӇm tra lӵc lӟn nhҩWOjPÿӭWÿѭӡQJPD\WUrQYҧLFKpR&9&LQ ORDQJ.ÿѫQYӏ: N) ...............................................................................................48 Bҧng 4.24.BҧQJWtQKWRiQFiFÿһFWUѭQJWKӕQJNrFѫEҧn cӫa mүu thӱ nghiӋPÿӕi vӟi ÿѭӡQJPD\WUrQYҧi Tropical in loang K20 ...............................................................48 xiv Bҧng 4.25.KӃt quҧ kiӇm tra lӵc lӟn nhҩWOjPÿӭWÿѭӡQJPD\WUrQYҧLFKpR&9&LQ loang K20, mүu thӱ sau giһWÿѫQvӏ: N)...................................................................49 Bҧng 4.26.BҧQJWtQKWRiQFiFÿһFWUѭQJWKӕQJNrFѫEҧn cӫa mүu thӱ nghiӋm sau giһt ÿӕi vӟLÿѭӡQJPD\WUrQYҧi Tropical in loang K20...................................................49 Bҧng 4.27. BҧQJVRViQKJLiWUӏ lӵFNpRÿӭWWUXQJEuQKFӫa mӝt sӕ loҥi chӍ ÿҥWJLiWUӏ ÿӝ bӅQÿӭWÿѭӡng may cao so vӟi chӍ PD\SHFRWKHRSKѭѫQJSKiSVWULSWKӱ nghiӋm sau khi giһt) ..................................................................................................52 Bҧng 4.28.KӃt quҧ kiӇPWUDÿӝ bӅQNpRÿӭWÿѭӡQJPD\WUrQYҧi Gabadin peco K08 WKHRSKѭѫQJSKiSJUDEÿѫQYӏ: N) ...........................................................................53 Bҧng 4.29.KӃt quҧ WtQKFiFÿһFWUѭQJWKӕQJNrFѫEҧn vӟi lӵFNpRÿӭWÿѭӡng may WUrQYҧLSHFR.WKHRSKѭѫQJSKiSJUDE ................................................................53 Bҧng 4.30.KӃt quҧ kiӇPWUDÿӝ bӅQNpRÿӭWÿѭӡQJPD\WUrQYҧi Gabadin peco K08 WKHRSKѭѫQJSKiSJUDEPүu thӱ sau giһWÿѫQYӏ: N) ..............................................54 Bҧng 4.31.KӃt quҧ WtQKFiFÿһFWUѭQJWKӕQJNrFѫEҧn vӟi lӵFNpRÿӭWÿѭӡng may WUrQYҧLSHFR.WKHRSKѭѫQJSKiSJUDEPүu thӱ sau giһt ...................................54 Bҧng 4.32.KӃt quҧ kiӇPWUDÿӝ bӅQNpRÿӭWÿѭӡQJPD\WUrQYҧi Gabadin len 50/50 WKHRSKѭѫQJSKiSJUDEÿѫQYӏ: N) ...........................................................................55 Bҧng 4.33.KӃt quҧ WtQKFiFÿһFWUѭQJWKӕQJNrFѫEҧn vӟi lӵFNpRÿӭWÿѭӡng may WUrn vҧL*DEDGLQOHQWKHRSKѭѫQJSKiSJUDE .................................................55 Bҧng 4.34.KӃt quҧ kiӇPWUDÿӝ bӅQNpRÿӭWÿѭӡQJPD\WUrQYҧi Gabadin peco K08 WKHRSKѭѫQJSKiSJUDEPүu thӱ sau giһWÿѫQYӏ: N) ..............................................56 Bҧng 4.35.KӃt quҧ WtQKFiFÿһFWUѭQJWKӕQJNrFѫEҧn vӟi lӵFNpRÿӭt ÿѭӡng may WUrQYҧL*DEDGLQOHQWKHRSKѭѫQJSKiSJUDEPүu thӱ sau giһt .....................56 Bҧng 4.36.KӃt quҧ kiӇPWUDÿӝ bӅQNpRÿӭWÿѭӡng may WUrQYҧi Gabadin len 70/30 WKHRSKѭѫQJSKiSJUDEÿѫQYӏ: N) ...........................................................................57 Bҧng 4.37.KӃt quҧ WtQKFiFÿһFWUѭQJWKӕQJNrFѫEҧn vӟi lӵFNpRÿӭt ÿѭӡng may WUrQYҧL*DEDGLQOHQWKHRSKѭѫQJSKiSJUDE .................................................57 xv Bҧng 4.38.KӃt quҧ kiӇPWUDÿӝ bӅQNpRÿӭWÿѭӡQJPD\WUrQYҧi Gabadin len 70/30theo SKѭѫQJSKiSJUDEPүu thӱ sau giһWÿѫQYӏ: N) ......................................................58 Bҧng 4.39.KӃt quҧ WtQKFiFÿһFWUѭQJWKӕQJNrFѫEҧn vӟi lӵFNpRÿӭWÿѭӡng may WUrQYҧL*DEDGLQOHQWKHRSKѭѫQJSKiSJUDEPүu thӱ nghiӋm sau giһt. .......58 Bҧng 4.40.KӃt quҧ kiӇPWUDÿӝ bӅQNpRÿӭt ÿѭӡQJPD\WUrQYҧi Popeline pevi K13 WKHRSKѭѫQJSKiSJUDEÿѫQYӏ: N) ...........................................................................59 Bҧng 4.41.KӃt quҧ WtQKFiFÿһFWUѭQJWKӕQJNrFѫEҧn vӟi lӵFNpRÿӭWÿѭӡng may WUrQYҧL3RSHOLQHSHYL.WKHRSKѭѫQJSKiSJUDE .................................................59 Bҧng 4.42.KӃt quҧ kiӇPWUDÿӝ bӅQNpRÿӭWÿѭӡQJPD\WUrQYҧi Popeline pevi K13 WKHRSKѭѫQJSKiSJUDEPүu thӱ sau giһWÿѫQYӏ: N) ..............................................60 Bҧng 4.43.KӃt quҧ WtQKFiFÿһFWUѭQJWKӕQJNrFѫEҧn vӟi lӵFNpRÿӭWÿѭӡng may WUrQYҧL3RSHOLQHSHYL.WKHRSKѭѫQJSKiSJUDEPүu thӱ nghiӋm sau giһt. .......60 Bҧng 4.44.KӃt quҧ kiӇPWUDÿӝ bӅQNpRÿӭWÿѭӡQJPD\WUrQYҧLFKpR&9&LQORDQJ .WKHRSKѭѫQJSKiSJUDEÿѫQYӏ: N) ...................................................................61 Bҧng 4.45.KӃt quҧ WtQKFiFÿһFWUѭQJWKӕng krFѫEҧn vӟi lӵFNpRÿӭWÿѭӡng may WUrQYҧLFKpR&9&LQORDQJ.WKHRSKѭѫQJSKiSJUDE ........................................61 Bҧng 4.46.KӃt quҧ kiӇPWUDÿӝ bӅQNpRÿӭWÿѭӡQJPD\WUrQYҧLFKpR&9&LQORDQJ .WKHRSKѭѫQJSKiSJUDEPүu thӱ sau giһWÿѫQYӏ: N) ......................................62 Bҧng 4.47.KӃt quҧ WtQKFiFÿһFWUѭng thӕQJNrFѫEҧn vӟi lӵFNpRÿӭWÿѭӡng may WUrQYҧLFKpR&9&LQORDQJWKHRSKѭѫQJSKiSJUDE ................................................62 Bҧng 4.48.KӃt quҧ kiӇPWUDÿӝ bӅn NpRÿӭWÿѭӡQJPD\WUrQYҧi Tropical in loang K20 WKHRSKѭѫQJSKiSJUDEÿѫQYӏ: N) ...........................................................................63 Bҧng 4.49.KӃt quҧ WtQKFiFÿһFWUѭQJWKӕQJNrFѫEҧn vӟi lӵFNpRÿӭWÿѭӡng may WUrQYҧL7URSLFDOLQORDQJ.WKHRSKѭѫQJSKiSJUDE ...........................................63 Bҧng 4.50.KӃt quҧ kiӇPWUDÿӝ bӅQNpRÿӭWÿѭӡQJPD\WUrQYҧi Tropical in loang K20 WKHRSKѭѫQJSKiSJUDEPүu thӱ sau giһWÿѫQYӏ: N) ..............................................64 Bҧng 4.51 KӃt quҧ WtQKFiFÿһFWUѭng thӕQJNrFѫEҧn vӟi lӵFNpRÿӭWÿѭӡng may WUrQYҧL7URSLFDOLQORDQJ.WKHRSKѭѫQJSKiSJUDE ...........................................64 xvi Bҧng 4.52. BҧQJVRViQKJLiWUӏ lӵFNpRÿӭWWUXQJEuQKFӫa mӝt sӕ loҥi chӍ ÿҥWJLiWUӏ ÿӝ bӅQÿӭWÿѭӡQJPD\FDRKѫQVRYӟi chӍ PD\SHFRWKHRSKѭѫQJSKiSJUDE 66 Bҧng 4.53.KhҧRViWJLiWKӏ WUѭӡng hiӋQQD\ÿӕi vӟi mӝt sӕ loҥi chӍ may (theo sӕ liӋu EiRJLiFӫDQKjVҧn xuҩt chӍ QăP ...................................................................67 xvii 0Ӝ76Ӕ.é+,ӊ89,ӂ77Ҳ7 Chӳ viӃt tҳt PET Peco Polyester 3(7YjFRWWRQ Pevi TCVN 3(7Yj9LVFR 7LrXFKXҭn ViӋt Nam ASTM HiӋp hӝi quӕc tӃ vӅ thӱ nghiӋm vұt liӋu (International Association for Testing Materials) CTY TNHH MTV &{QJW\7UiFKQKLӋm hӳu hҥn mӝWWKjQKYLrQ