Lub melting point ntawm polyethylene board yog hais txog 130 degree, thiab tus txheeb ze ceev yog 0.941 ~ 0.960. Nws muaj qhov kub thiab txias tsis kam, tshuaj lom neeg ruaj khov, siab rigidity thiab toughness, thiab zoo mechanical zog. Dielectric zog thiab ib puag ncig kev ntxhov siab tawg kuj zoo. Lub melting kub yog 220 ~ 260C. Rau cov ntaub ntawv nrog cov molecules loj, nws raug pom zoo tias qhov kub ntawm qhov kub ntawm qhov sib txawv ntawm 200 ~ 250C.
Cia peb tham txog cov txiaj ntsig ntawm polyethylene:
1. Qhov kev tiv thaiv kev puas tsuaj yog thawj zaug hauv cov yas, 4 zaug siab dua nylon 66 thiab PTFE, thiab 6 npaug siab dua carbon steel;
2. Qhov cuam tshuam lub zog yog thawj zaug ntawm cov yas, uas yog 2 npaug ntawm PC thiab 5 npaug ntawm ABS, thiab tuaj yeem tswj tau siab toughness ntawm cov kua nitrogen kub (-196 degree);
3. Tus kheej lubricating yog piv rau PTFE,
4. Qhov cuam tshuam lub zog nqus tus nqi yog siab ntawm tag nrho cov yas, thiab lub suab damping zoo heev;
5. Cov tshuaj lom neeg ruaj khov yog siab heev, thiab nws tuaj yeem tiv taus qhov kev txiav txim ntawm ntau yam corrosive media thiab organic media nyob rau hauv qee qhov kub thiab txias ntau yam.
6. Muaj peev xwm tiv thaiv adhesion, thib ob tsuas yog PTFE;
7. Ua kom huv si thiab tsis muaj tshuaj lom, tuaj yeem siv rau kev sib cuag nrog zaub mov thiab tshuaj;
8. Qhov ceev yog me me nyob rau hauv tag nrho engineering plastics, thiab nws yog 56% sib dua PTFE.
9. Qhov kub thiab txias tsis kam, rho tawm 256 degrees Celsius, cov khoom tsis hloov, lub melting point yog 136 degrees, thiab kub deflection kub yog txog 85 degrees.
