Qhov twg zoo dua LLDPE lossis HDPE yas?

1. Dab tsi yog polyethylene?

Polyethylene yog cov thermoplastic polymers uas muaj ntau yam kev siv. Nyob rau xyoo 1950, cov kws tshawb fawb German thiab Italian, Karl Ziegler thiab Giulio Natta, tau tshawb pom cov txheej txheem polymerization uas tsim cov polyethylene.

Ua los ntawm cov tshuaj sib xyaw ethylene, polyethylene muaj cov ceg ncaj ncaj uas tuaj yeem ceg tawm. Cov variations nyob rau hauv cov qauv branching yog dab tsi cais polyethylene sib txawv ntawm ib leeg.

 

2. Ntau hom polyethylene

Tsawg-density polyethylene (LDPE)

Tawm ntawm tag nrho cov polyethylene,LDPEmuaj feem ntau ceg. Nrog rau lub thickness ntawm 0.5 mils mus rau 40 mils, qhov no dav siv yas yog tsim nyog saj zawg zog, ua rau nws haum rau ntau yam nto.

Nws cov ceg ntoo siab txo qis nws qhov ceev mus rau qhov ntau ntawm 0.91-0.925g/cm3. Nws yog ib qho tseem ceeb kom nco ntsoov tias qhov tsis muaj qhov ntom ntom no ua rau muaj kev pheej hmoo ntawm kev puas tsuaj.

Cov ntawv thov feem ntau rau LDPE suav nrog:

Kev tsim kho, kev ua liaj ua teb, kev tiv thaiv nto, Tarps, npog, zaj duab xis, lub raj mis thiab lwm yam

Linear low ntom polyethylene (LLDPE)

LLDPEcov khoom yog qhov yooj yim tshaj plaws ntawm cov yas. Cov polymer no feem ntau ua ke nrog lwm cov yeeb yaj kiab txhawm rau txhawm rau nce elasticity thiab durability ntawm cov ntaub ntawv siv.

Cov molecules ntawm LLDPE compound tseem nyob ruaj khov txawm tias thaum cov khoom raug rub los yog strained. Nws muaj ntau ceg luv uas glide tawm tsam ib leeg.

Qhov no ua rau cov yeeb yaj kiab tsis tsim kua muag txawm tias muaj kev cuam tshuam loj heev. Thiab vim hais tias cov ceg yog luv luv, lawv tsis nkag mus rau hauv ib tug tangled mess

High density polyethylene (HDPE)

Hom polyethylene no yog qhov ruaj khov tshaj plaws thiab tshuaj tiv thaiv, tab sis nws kuj tsis yooj yim dua li LDPE thiab LLDPE.

Tightly ua ke cell daim ntawvHDPEtshuaj sib xyaw. Cov hlwb no sib koom ua ke muaj zog heev uas invading molecules muaj lub sij hawm nyuaj heev los ntawm.

HDPE tebchaw muaj me me heev branching uas yuav luag tsis muaj, muab cov polymer no nws nruj thiab impermeable zog. HDPE yog cov polymer xaiv thaum xav tau cov ntaub ntawv uas tuaj yeem tiv taus cov tshuaj lom neeg.

Nov yog qee qhov kev ua tau zoo uas ua rau HDPE cov khoom sib txawv ntawm lwm cov polyethylene:

Thickness - 12 mus rau 100 mils;

Qhov ceev - 0941-0.965g/cm3;

Crystallinity - 50%, ua nws ib nrab-crystalline polymer uas muaj peev xwm tiv taus cov tshuaj;

Stress Cracking - Nws crystallinity ua rau muaj kev pheej hmoo ntawm HDPE tawg nyob rau hauv kev ntxhov siab,

UV Resistant - Tsis tas yuav suav nrog UV additives hauv HDPE cov ntaub ntawv vim tias cov polymers tau yooj yim los daws cov hnub raug.

 

3. Yuav ua li cas xaiv txoj cai polyethylene

Nws yog ib qho tseem ceeb kom paub tias ib hom polyethylene tsis tas yuav zoo dua lwm yam. Lawv tsuas yog txawv, uas txhais tau hais tias lawv tuaj yeem ua tiav cov hom phiaj sib txawv.

Thaum txiav txim siab qhov twg polymer yog qhov zoo rau koj cov kev xav tau, koj yuav tsum paub qhov ntawd

HDPE muaj lub zog tshaj plaws, tab sis nco ntsoov tias nws yooj yim dua rau kev ntxhov siab tawg thiab tsis hloov pauv.

Linear low-density polyethylene yog yoog raws thiab tsis tshua muaj kev ntxhov siab tawg.

Thaum nws los txog tshuaj, koj yuav xav tau cov tshuaj tiv thaiv polymer zoo li HDPE.

Thaum nws los txog rau cov ntaub ntawv raug kev ntxhov siab, linear low-density polyethylene yuav yog qhov kev xaiv zoo dua li HDPE.

 

Hauv cov ntsiab lus, yog tias koj qhov project xav tau cov khoom siv ruaj khov lossis tshuaj tiv thaiv, HDPE tej zaum yuav yog qhov koj xaiv zoo tshaj. Tab sis yog tias koj tab tom nrhiav ib yam khoom uas yooj yim rau nruab thiab tsis xav tau tib lub zog li HDPE polymer, LLDPE yuav yog qhov kev xaiv zoo dua.

 

4. Hais txog peb

Luoyang Dema Ntshuam & Export Co., Ltd. aims muab cov khoom zoo, nqi-zoo rau lub ntiaj teb no factories, yas khoom manufacturers, thiab cov khoom distributors. Luoyang Dema Ntshuam & Export Co., Ltd. muab THEbest PP, PE, PVC, AVE, ABS cov ntaub ntawv daws teeb meem rau cov khoom yas manufacturers, wholesalers, distributors, distributors, Hoobkas tswv, ua rhiav, thiab lwm yam.

 

Yog koj tab tom nrhiav rau generalcov ntaub ntawv yas, thov koj xav tau tus nqi tshiab thiab cov lus hais los ntawm Luoyang Dema Ntshuam & Export Co., Ltd. Pab pawg muag khoom yuav teb rau hauv 48 teev.