PE cov khoom siv cable

PE yog polyethylene compound, feem ntau muab faib ua high density polyethylene (HDPE), nruab nrab ntom polyethylene (MDPE), low density polyethylene (LDPE) thiab linear low density polyethylene (LLDPE).

Tiv tauj peb

Khoom Paub meej

Khoom cim npe

khoom feature

1.HDPE yog ib hom crystallinity siab, uas tsis yog-polar thermoplastic resin ua los ntawm ethylene copolymerization. Cov tsos ntawm thawj HDPE yog milky dawb, thiab nws yog translucent rau qee yam hauv seem meager. Nws muaj kev tiv thaiv zoo rau feem ntau cov tshuaj hauv tsev thiab kev lag luam, thiab nws tuaj yeem tiv thaiv corrosion thiab tawg ntawm cov oxidants muaj zog (concentrated nitric acid), acid thiab alkali ntsev thiab cov kuab tshuaj organic (carbon tetrachloride). Cov polymer tsis nqus dej noo thiab muaj dej tsis zoo rau chav, uas tuaj yeem siv rau kev tiv thaiv kev ya raws thiab seepage.

2.MDPE yog tus cwj pwm los ntawm ib puag ncig kev ntxhov siab tawg tsis kam thiab kev tuav lub zog mus ntev. Qhov txheeb ze ntawm MDPE yog 0.926-0.953, crystallinity yog 70% -80%, qhov nruab nrab molecular hnyav yog 200,000, lub zog tensile yog 8-24 mpa, elongation ntawm tawg yog 50% -60%, melting kub yog 126-135 ℃, thiab melt flow rate yog 0.1-35 g / 10 feeb. Thermal deformation kub (0.46 mpa) 49-74 ℃.

3. Tsawg ntom polyethylene yog qhov sib sib zog nqus ntawm polyethylene resin. Piv nrog rau high-density polyethylene, nws crystallinity (55% -65%) thiab softening point (90-100 ℃) yog qis dua. Nws muaj zoo softness, extensibility, pob tshab, txias kuj thiab processability. Nws cov tshuaj ruaj khov yog qhov zoo, tuaj yeem tiv taus acid, alkali thiab ntsev aqueous tov; Zoo hluav taws xob rwb thaiv tsev thiab roj permeability; Kev nqus dej tsawg; Yooj yim rau hlawv. Cov cuab yeej yog mos, nrog zoo extensibility, hluav taws xob rwb thaiv tsev, tshuaj stability, kev ua tau zoo thiab kub tsis kam (ua hauj rau -70 ℃).

4. Piv nrog LDPE, LLDPE muaj qhov zoo ntawm lub zog siab, zoo toughness, muaj zog rigidity, tshav kub tsis kam, txias tsis kam, thiab lwm yam.LLDPE kuj muaj zoo ib puag ncig kev nyuaj siab cracking kuj, tsim kua muag kuj thiab lwm yam khoom, thiab muaj peev xwm tiv taus acid, alkali, organic solvents thiab lwm yam.

Lus Cim: PE yas hais yog dav siv thiab yuav tsum tau customized raws li tus neeg yuav tsum tau muaj nyob rau hauv txawv scenarios.

Khoom parameter

Lub npe	HDPE	LDPE	LLDPE
Cov ntxhiab tsw, toxicity	Non-toxic, tasteless, tsw	Non-toxic, tasteless, tsw	Non-toxic, tasteless, tsw
Qhov ntom	0.940 ~ 0.976g / cm3³	0.910 ~ 0.940g / cm3³	0.915-0.935g / cm3³
Crystallinity	85% -65%	45-65%	55-65%
Molecular qauv	Tsuas muaj cov pa roj carbon-carbon thiab carbon-hydrogen bonds, uas yuav tsum tau muaj zog ntau dua kom tawg	Cov polymer muaj qhov hnyav dua molecular thiab yuav tsum muaj zog tsawg dua kom tawg	Linear qauv, tsawg dua ceg chains, luv chains, yuav tsum tau tsawg zog los ua txhaum
Softening point	125-135 ℃	90-100 ℃	94-108 ℃
Cov cuab yeej cuab tam	Siab zog, zoo toughness, muaj zog rigidity	Mechanical zog tsis zoo	Siab zog, zoo toughness, muaj zog rigidity
Tensile zog	Siab	Tsawg	Siab dua
Elongation thaum so	Siab dua	Tsawg	Siab
Kev cuam tshuam lub zog	Siab dua	Tsawg	Siab
Moisture-proof thiab dej-pov thawj kev ua haujlwm	Nws muaj qhov zoo permeability rau dej, dej vapor thiab huab cua, tsis tshua muaj dej nqus thiab zoo permeability kuj	Tsis zoo noo noo thiab huab cua rwb thaiv tsev	Nws muaj qhov zoo permeability rau dej, dej vapor thiab huab cua, tsis tshua muaj dej nqus thiab zoo permeability kuj
Acid, alkali, corrosion, organic hnyav kuj	Resistant kom muaj zog oxidant corrosion; Resistant rau acid, alkali thiab ntau yam ntsev; Insoluble nyob rau hauv tej organic hnyav, thiab lwm yam.	Acid, alkali, ntsev tov corrosion kuj, tab sis tsis zoo hnyav kuj	Resistant rau acid, alkali thiab organic solvents
Kub tiv taus / txias	Zoo kub thiab txias tsis kam, nyob rau hauv chav tsev kub thiab txawm nyob rau ntawm -40F tsis tshua muaj kub, zoo heev cuam tshuam kuj, tsis tshua muaj kub embrittlement kub	Tsawg kub tsis kam, tsis tshua muaj kub embrittlement kub	Cov cua kub zoo thiab txias ua haujlwm Tsis tshua muaj kub embrittlement kub
Kev tiv thaiv ib puag ncig kev ntxhov siab tawg	Zoo	Zoo dua	Zoo