Ua ib yam khoom siv uas zoo rau ib puag ncig, cov ntaub ntawv PP tau siv dav hauv kev ntim khoom, thiab cov ntaub ntawv rov ua dua PCR kuj tau nthuav dav mus rau kev txhim kho kev lag luam. Ua ib tus neeg tawm tswv yim ntawm kev ntim khoom uas zoo rau ib puag ncig,Topfeelpack tau tsim ntau yam khoom siv PP kom tau raws li kev xav tau ntawm kev ua lag luam.
Cov khoom siv PP (polypropylene) siv dav hauv kev lag luam ntim khoom vim nws qhov kev ua tau zoo heev thiab kev hloov pauv tau yooj yim. Nws yog ib qho thermoplastic polymer uas paub txog nws lub zog siab, ruaj khov, thiab tiv taus cov tshuaj lom neeg thiab dej noo. Cov khoom siv no siv rau hauv txhua hom kev ntim khoom, suav nrog cov thawv, lub raj mis, hnab thiab zaj duab xis.
Ib qho ntawm cov txiaj ntsig tseem ceeb ntawm kev siv cov khoom siv PP rau kev ntim khoom yog nws qhov sib dua. PP sib dua li lwm cov ntaub ntawv xws li iav lossis hlau, ua rau nws yooj yim dua thiab pheej yig dua rau kev thauj mus los. Qhov no yog qhov tshwj xeeb tshaj yog rau cov lag luam uas xav tau cov ntim khoom ntau, xws li khoom noj thiab dej haus, tshuaj thiab e-lag luam.
Lwm yam khoom tseem ceeb ntawm cov khoom siv PP yog nws cov tshuaj lom neeg tsis kam. Nws tuaj yeem tiv taus cov kua qaub, alkalis thiab lwm yam tshuaj corrosive, ua rau nws zoo tagnrho rau cov khoom ntim khoom uas yuav kov cov ntaub ntawv zoo li no. Qhov no tseem ceeb heev rau cov lag luam uas thauj lossis khaws cov tshuaj, xws li cov tshuaj lom neeg, tsheb thiab cov khoom siv ntxuav.
Cov yam ntxwv no ua rau nws tsim nyog rau kev ntim cov khoom lwj xws li zaub mov thiab dej haus, nrog rau cov khoom uas yuav tsum tau khaws cia rau hauv qhov chaw noo noo.
Ib qho ntawm cov txiaj ntsig tseem ceeb tshaj plaws ntawm cov khoom siv PP yog nws lub zog siab thiab ruaj khov. Nws muaj lub zog tensile siab, uas txhais tau tias nws tuaj yeem tiv taus kev ntxhov siab lossis kev nruj ua ntej tawg. Qhov no ua kom ntseeg tau tias lub ntim khoom tseem nyob ruaj khov txawm tias thaum lub sijhawm tuav lossis xa khoom tsis zoo. Nws kuj tseem tiv taus kev cuam tshuam, yog li nws yuav tsis tawg lossis tawg yog tias poob lossis tsoo.
Ntxiv rau nws cov khoom siv lub cev, cov ntaub ntawv PP kuj paub txog lawv cov khoom siv pom kev zoo heev. Nws yog pob tshab, tso cai rau cov neeg siv khoom kom yooj yim pom cov khoom hauv pob. Qhov no tseem ceeb heev hauv kev lag luam uas qhov kev nyiam pom yog qhov tseem ceeb, xws li kev lag luam tshuaj pleev ib ce thiab kev saib xyuas tus kheej. Cov ntaub ntawv PP kuj tseem muaj kev ywj pheej heev thiab tuaj yeem pwm rau hauv ntau yam duab thiab qhov ntau thiab tsawg. Qhov kev ywj pheej no ua rau nws haum rau ntau yam kev siv ntim khoom, suav nrog lub raj mis, thawv thiab hnab. Nws tuaj yeem pwm tau yooj yim rau hauv cov duab nyuaj thiab tuaj yeem hloov kho kom tau raws li cov kev xav tau ntim khoom tshwj xeeb.Cov ntaub ntawv PP kuj tseem siv tau dua tshiab thiab zoo rau ib puag ncig. Nws tuaj yeem yaj thiab rov ua dua tshiab rau hauv cov khoom tshiab, txo cov khib nyiab thiab txo qhov xav tau cov khoom siv tshiab.
Kev siv cov khoom siv PP rov qab ua dua tshiab pab txuag cov peev txheej thiab txo kev siv hluav taws xob, ua rau nws yog qhov kev xaiv ruaj khov rau kev ntim khoom. Zuag qhia tag nrho, cov khoom siv PP muaj ntau yam zoo rau kev siv ntim khoom. Nws qhov xwm txheej tsis hnyav, tiv taus tshuaj lom neeg thiab dej noo, muaj zog thiab ruaj khov, cov khoom siv pom kev zoo heev, thiab kev siv rov qab ua dua tshiab ua rau nws yog qhov kev xaiv ntau yam thiab zoo rau ib puag ncig. Nws siv dav hauv ntau yam lag luam thiab tau dhau los ua ib feem tseem ceeb ntawm kev lag luam ntim khoom.
Lub sijhawm tshaj tawm: Lub Kaum Hli-20-2023
