NEI BANNENR-21

Qalabka silsiladda qaada ee caadiga ah

Qalabka silsiladda korka qaada ee caadiga ah

Polyoxymethylene (POM), oo sidoo kale loo yaqaano acetal polyacetal, iyo polyformaldehyde, waa heerkulbeeg injineernimo oo loo isticmaalo qaybaha saxda ah ee u baahan qallafsanaan sare, khilaaf hoose iyo xasillooni cabbir heersare ah. Sida badan oo kale oo polymers synthetic, waxaa soo saara shirkado kiimiko oo kala duwan oo leh noocyo kala duwan oo noocyo kala duwan ah oo lagu iibiyo magacyo kala duwan sida Delrin, Kocetal, Ultraform, Celcon, Ramtal, Duracon, Kepital, Polypenco, Tenac iyo Hostaform. POM waxaa lagu gartaa xooggeeda sare, qallafsanaanta iyo adkaanta ilaa -40 °C. POM waa caddaan mugdi ah sababtoo ah ka kooban crystalline sare laakiin waxaa lagu soo saari karaa midabyo kala duwan. POM waxay leedahay cufnaanta 1.410-1.420 g/cm3.

Polypropylene (PP), oo sidoo kale loo yaqaan polypropene, waa polymer-ka-kuleylka loo isticmaalo codsiyada kala duwan. Waxa lagu soo saaraa polymerization-ka silsilad-koritaanka ee monomer propylene.Polypropylene waxaa iska leh kooxda polyolefins oo qayb ahaan waa crystalline iyo non-polar. Guryaheedu waxay la mid yihiin topolyethylene, laakiin way ka adag tahay oo way u adkaysataa kulaylka. Waa shay cad oo makaanikada ah oo rogan oo leh iska caabin kiimikaad sare leh.

Nylon 6(PA6) ama polycaprolactam waa polymer, gaar ahaan semicrystalline polyamide. Si ka duwan inta badan naylonyada kale, naylon 6 ma aha polymer-ka uumi-leeyahay, laakiin taa beddelkeeda waxa lagu sameeyay polymerization giraan-furay; Tani waxay ka dhigaysaa kiis gaar ah marka la barbardhigo u dhexeeya uumiga iyo polymers-ka dheeriga ah.


Waqtiga boostada: Abriil-24-2024