Menene bambanci tsakanin buhunan abinci da jakunkunan filastik na yau da kullun?

1. Polyethylene: Babban bangaren shi ne resin polyethylene, kuma ana ƙara ƙaramin adadin mai, wakili na tsufa da sauran abubuwan ƙari.Polyethylene ba shi da wari, mara guba, farar fata mai kauri.HDPE ya kasu kashi biyu na polyethylene mai girma, ƙananan polyethylene da ƙananan ƙananan polyethylene na layi bisa ga ilimin halittar jiki, abun ciki da tsarin sarkar polymer.
Polyethylene filastik ana kiransa da matsa lamba na kasa HDPE.Idan aka kwatanta da ƙananan polyethylene da LLDPE, robobi na polyethylene suna da juriya mai zafi, juriya na abrasion, ruwa tururi hydrophilicity da danniya tsaga juriya a cikin yanayi.Bugu da ƙari, filastik polyethylene yana da kyakkyawan ƙarfin dielectric, juriya mai tasiri da juriya na sanyi.Ya dace da samfuran da ba su da tushe (kamar kwalabe na gilashi, kwalabe na wanka), gyaran allura, gyare-gyaren allura da sauran masana'antu.
Polyethylene low-density Linear (LINEARLOWDENSYPOYETHYLENE, LLDPE) wani polymer ne da aka samar ta hanyar polymerization na ethylene da ƙananan ƙananan olefins na ci gaba a gaban mai haɓakawa.Siffar sa yana kama da na polyethylene mai ƙarancin ƙarfi, amma ƙyalli na samansa yana da kyau, tare da ƙarancin zafin jiki na elongation da babban Modulus, juriya mai juriya, juriya ga fashewar ƙasa, ƙarancin tasirin tasirin matsa lamba da sauran fa'idodi.
Ana amfani da shi musamman don gyaran allura, extrusion, gyare-gyaren busa da sauran hanyoyin gyaran fuska don samar da fina-finai, kayan yau da kullun, bututu, wayoyi da igiyoyi.
2. Polypropylene: Babban bangaren shine resin polypropylene, wanda ke da babban sheki da watsa haske.Ayyukan rufewar zafi ya fi PE muni, amma ya fi sauran kayan filastik.
1. Shamaki yana da kyau fiye da PE, ƙarfinsa, taurinsa da rigidity sun fi PE;
2. Lafiya da aminci sun fi wasanni
3. Yana da kyakkyawan juriya na zafi kuma ana iya amfani da shi na dogon lokaci a zafin jiki na digiri 100 na celcius, amma juriyarsa na sanyi yana inganta aikin HDPE kuma ya zama raguwa a -17 digiri Celsius.
Jakar marufi da aka yi da fim ɗin filastik ya fi platinum, kayan albarkatu masu gaskiya da kayan da ba za su iya tsagewa ba dangane da juriya da juriya da danshi, amma tasirin buga bugu ba shi da kyau kuma farashin yana da ƙasa.Ana iya amfani da shi don jujjuya marufi na lollipops da kayan ciye-ciye.Ana iya sanya shi cikin kayan abinci mai zafi na fim ɗin marufi jakar zafi mai raguwar fim, kamar abinci da jakunkuna na marufi na abinci da sauran jakunkuna na marufi.
3. Polystyrene: A polymer tare da styrene monomer a matsayin babban bangaren.Wannan abu a bayyane yake kuma yana haskakawa.
1. Juriya na danshi ya fi muni fiye da PE, kwanciyar hankali na sinadarai shine gaba ɗaya, taurin yana da girma, amma brittleness yana da girma.
2. Kyakkyawan juriya mai ƙarancin zafin jiki, amma rashin ƙarfin juriya mara kyau, ba zai iya wuce 60≤80 ℃.
3. Kyakkyawan yanayin aminci.