Kev Tshawb Fawb Tshaj Tawm Txog Ntxiv Polyethylene PE rau Polypropylene PP

Kos qib polypropylene (PP YARN) yog hais txog homopolymer polypropylene raw cov ntaub ntawv nrog lub melt flow index ntawm li 2-5, uas yuav siv tau rau kos cov ntaub ntawv raw. Kev siv tseem ceeb yog ua cov thawv ntim khoom, hnab ntim khoom, ntawv sau, nuv ntses nets, thiab lwm yam Petrochemical nroj tsuag muaj cov khoom siv raw li no. Piv txwv li: Is Nrias teb H030SG, PetroChina T30S, Tianjin United 504PT, Saudi Arabia 1102K, thiab lwm yam.

Cov txhuam nruab nrab polypropylene PP tuaj yeem hloov kho los ntawm kev ntxiv me me ntawm polyethylene PE.

Kev sib xyaw yog qhov tseem ceeb ntawm kev hloov kho cov ntaub ntawv yas woven, ib yam li ntxiv qhov sib txawv ntawm cov ntsiab lus carbon hauv hlau, raws li cov khoom siv carbon.

Cov ntsiab lus tuaj yeem ua rau cov hlau hloov mus rau hauv cov hlau, hlau, thiab lwm yam. Ib yam muaj tseeb rau kev sib xyaw yas. Polypropylene PP muaj cov tshuab ua kom muaj zog, zoo heev thaum tshav kub kub ua hauj, zoo corrosion kuj, hluav taws xob rwb thaiv tsev, rigidity, thiab lwm yam. Txawm li cas los xij, molding txais tus nqi ntawm polypropylene yog loj,

Nws yog nkig ntawm qhov kub thiab txias tsis zoo rau ib puag ncig kev ntxhov siab tawg, thiab lwm yam. Cov no tuaj yeem hloov kho tau zoo los ntawm kev sib xyaw. Tam sim no muaj Polypropylene PP thiab siab -density polyethylene PE, low-density polyethylene PE, thiab linear low-density polyethylene PE, blending the modified sex and application. Lub melting point ntawm PP homopolymer yog hais txog 330 degree F, nyob ntawm tus nqi cua sov thiab thermal keeb kwm. Ntxig ntawm ntu ntawm PP saw rau hauv ethylene (random copolymerization), cov saw yuav ua tsis tu ncua thiab softer, yog li txo cov crystallinity, modulus,

Melting point thiab melting point sharpness. Hom random copolymer yog cov pob tshab thiab muaj qhov sib txawv ntawm 293-305 degree F (Fahrenheit).

Degrees=Celsius x 9/5 ntxiv rau 32 Celsius=(Fahrenheit - 32) 5/9).

Rau kev kos duab hlau, ntxiv me me ntawm polyethylene PE rau polypropylene PP muaj qhov zoo hauv qab no:

1, Ua kom toughness thiab cuam tshuam tsis kam

Polypropylene thiab polyethylene yog sib xyaw vim lawv muaj cov polarities zoo sib xws thiab muaj cov thermodynamic zoo sib xws. Hauv kev sib xyaw ntawm PP / HDPE

Ntawm lawv, thaum cov ntsiab lus ntawm HDPE yog 10 feem pua ​​​​, lub pob poob cuam tshuam lub zog ntawm -20 degree tuaj yeem nce ntau dua li yim npaug piv nrog polypropylene. Nws pom tau tias

Qhov kub tsis kam tiv thaiv tau zoo heev. Kev coj ua ntawm cov lag luam yas weaving tau ua pov thawj tias hauv PP / HDPE sib xyaw, thaum HDPE cov ntsiab lus yog 5 feem pua.

Thaum lub elongation ntawm kev tawg ntawm cov xov paj tiaj tus yog nce, lub hnab woven uas tsim muaj ib qho kev xav softer, thiab cov anti-tej xeem kev ua tau zoo dua.

txhim kho.

2. Tsawg fluffing ntawm cov hlau tiaj tus

Hauv kev sib xyaw ntawm PP / HDPE, thaum cov ntsiab lus ntawm HDPE yog 38 feem pua, pom nyob rau hauv lub tshuab ntsuas 40 zaug, fluff ntawm cov xov paj.

Qhov tshwm sim yog txo qis, yog li lub burr ntawm lub tiaj tus hlau hauv cov plua plav kuj tseem txo qis.

3. Txo cov txhob lo lo ntxhuav

Hauv PP / HDPE blends, thaum cov ntsiab lus ntawm HDPE yog 38 feem pua, qhov tshwm sim ntawm cov xov paj tawg yog txo. Flatten horizontally ntawm tes

Thaum txhob lo lo ntxhuav, nws tuaj yeem hnov ​​​​lub zog rub me ntsis dua li thaum nws tsis sib xyaw. Nws tseem tuaj yeem pom tias cov yeeb yaj kiab txias yog me ntsis muag, thiab nws tsis yooj yim rau cais cov filaments

Hlau tawg.

4. Tsawg tawg hlau npaum li cas thaum weaving

Vim qhov nce hauv qhov hnyav, cov hlau tiaj tus muaj kev cuam tshuam- tiv taus, thiab vim tsis tshua muaj fluff, cov hlau tiaj tiaj tuaj yeem dhau los ntawm txhua qhov kev taw qhia hlau qhov zoo, kom cov ntaub tuaj yeem txhim kho.

Tus nqi tawg yog txo.

Hauv PP / HDPE blends, cov ntsiab lus ntawm HDPE yuav tsum tsis txhob yooj yim tshaj 10 feem pua. Lub zog tensile ntawm cov xov paj tiaj tus txo qis heev.