Vim li cas tus nqi ntawm PS thiab PC teeb nyob rau hauv kev ua lag luam sib txawv? Niaj hnub no, kuv yuav qhia cov yam ntxwv ntawm ob cov ntaub ntawv.
1. Polystyrene (PS)
• Khoom: Amorphous polymer, Shrinkage tom qab molding tsawg dua 0.6; tsawg ntom ua rau cov zis 20% mus rau 30% ntau dua li cov khoom siv dav dav
• Qhov zoo: tus nqi qis, pob tshab, dyeable, ruaj loj, siab rigidity
• Disadvantages: siab fragmentation, tsis zoo hnyav kuj, kub kuj
• Daim Ntawv Thov: Cov ntawv sau, cov khoom ua si, Cov khoom siv hluav taws xob, styrofoam tableware
2. Polycarbonate (PC)
• Khoom: Amorphous thermoplastics
• Qhov zoo: siab zog thiab elastic modulus, siab cuam tshuam lub zog, dav kev khiav hauj lwm kub ntau, siab transparency thiab dawb dyeing, siab HDT, zoo qaug zog tsis kam, zoo huab cua tsis kam, zoo heev hluav taws xob yam ntxwv, tasteless thiab odorless, harmless rau tib neeg lub cev, noj qab haus huv thiab kev nyab xeeb, tsawg molding shrinkage thiab zoo seem stability
• Qhov tsis zoo: Cov khoom tsim tsis zoo tuaj yeem ua rau muaj teeb meem hauv kev ntxhov siab
• Daim ntawv thov:
√ Electronics: CDs, keyboards, khoom vaj khoom tsev vaj tse, teeb liab cannons, xov tooj
√ Tsheb: bumpers, faib boards, iav kev ruaj ntseg
√ Cov khoom lag luam: lub koob yees duab lub cev, lub tshuab vaj tsev, lub kaus mom hlau, lub kaus mom dhia dej, lo ntsiab muag kev nyab xeeb
3. Lwm yam xwm txheej
• Lub teeb kis ntawm PS yog 92%, thaum rau PC yog 88%.
• PC toughness yog zoo dua li PS, PS yog nkig thiab yuav tawg tau yooj yim, thaum PC muaj zog dua.
• Lub thermal deformation kub ntawm PC nce mus txog 120 degrees, thaum PS tsuas yog hais txog 85 degrees.
• Lub fluidity ntawm ob kuj txawv heev. Lub fluidity ntawm PS zoo dua li ntawm PC. PS tuaj yeem siv cov rooj vag taw tes, thaum PC yeej xav tau lub rooj vag loj.
• Tus nqi ntawm ob qho tib si kuj txawv heev. Tam sim noib txwmPC raug nqi ntau dua 20 yuan, thaum PS nqi tsuas yog 11 yuan.
PS yas hais txog ClassⅠ yas uas suav nrog Styrene hauv Macromolecular saw, thiab kuj suav nrog Styrene thiab Copolymer. Nws yog soluble hauv Aromatic hydrocarbons, Chlorinated hydrocarbons, Aliphatic Ketones thiab esters, tab sis tsuas tuaj yeem o hauv acetone.
PC tseem hu ua Polycarbonate, abbreviated li PC, yog xim tsis muaj xim, pob tshab, amorphous thermoplastic khoom. Lub npe los ntawm Internal CO3 pawg.
Kuv vam tias nws tuaj yeem pab cov neeg siv khoom nkag siab tias vim li cas thiaj li muaj tus nqi sib txawv ntawm PC thiab PS. Kuv kuj vam tias cov neeg siv khoom yuav ua rau lawv lub qhov muag qhib thaum xaiv cov teeb, tsis txhob raug dag los ntawm tus nqi. Tom qab tag nrho, koj tau txais yam koj them rau.
Liper ua lub chaw tsim khoom teeb pom kev zoo, peb nruj heev rau kev xaiv cov khoom, yog li koj tuaj yeem xaiv thiab siv nrog kev ntseeg siab.
Post lub sij hawm: May-31-2024
