Kuisa chisimbiso uye kupisa kwekuisa chisimbiso zvinhu zvinotevera;

1.Kutakura nzira yekuisa chisimbiso

Maitiro ekuisa chisimbiso pasuru anosanganisira kupisa chisimbiso, kutonhora chisimbiso, kunamatira chisimbiso, etc. Kupisa chisimbiso kunoreva kushandiswa kweiyo thermoplastic yemukati mechikamu chikamu mune multilayer inoumbwa firimu dhizaini, iyo inoderedza chisimbiso kana ichipisa, uye inosimbisa kana panobva kupisa kubviswa. Kupisa kwekuisa mapurasitiki, kupfeka uye kupisa kunopisa zvinowanzo shandiswa kupisa chisimbiso zvinhu. Kuiswa chisimbiso kunotonhora kunoreva kuti kunogona kusimbiswa nekudzvanya pasina kupisa. Iyo yakajairika kutonhora yekuisa chisimbiso kupfeka ndiko kumucheto kupfeka kunoiswa pamucheto wekupakisha bhegi. Kuisa chisimbiso kwekunamatira hakuwanzoshandiswa mune akawanda-maseru zvinhu kurongedza, anongoshandiswa chete kuputira zvinhu zvine mapepa.

2. Kupisa kwekuvhara zvinhu

(1)Polyethylene (Pe) imhando yemukaka muchena, unoshanduka uye opaque wakisi yakasimba. Iyo inenge isinganetsi, isina chepfu uye yakareruka kupfuura mvura. Pe macromolecular cheni ine yakanaka inochinjika uye zviri nyore kujekesa. Icho chinhu chakaomarara patembiricha yemukati. Sekuputira zvinhu, iko kusakosha kukuru kwe PE kusimba kwemhepo kuomarara, kukwirira kwepasi kune gasi uye nemhepo mhute, yakaderera simba uye kupisa kupisa; zviri nyore kudzikiswa nechiedza, kupisa uye pole, saka antioxidant uye mwenje uye kupisa kudzikamisa zvinowanzo kuwedzerwa kune zvigadzirwa zvePE kudzivirira kuchembera; PE ine hurombo hwezvakatipoteredza kushushikana nekutsemuka kurwisa, uye haipesane nekuora kweiyo yakadzika h2s04, HNO3 neayo oxidant, uye inozokanganiswa nemamwe aliphatic mahydrocarbon kana mahydrocarbon ane chlorine kana achipisa; iko kudhinda kuita kwe PE kwakashata, uye pamusoro pacho haina polar, saka kurapwa kwekona kunofanirwa kuitwa kusati kwadhinda uye kuomesa kubatana kuti usimbise kubatana uye kuomarara kubatana kweinodhinda

PE inoshandiswa kupisa chisimbiso kurongedza kunyanya inosanganisira:
① yakaderera arambe achirema polyethylene (LDPE), inozivikanwawo seyakanyanya kumanikidza polyethylene;
② yakakwira density polyethylene (HI) PE, inozivikanwa seyakaderera kumanikidza polyethylene;
③ wepakati arambe achirema polyethylene (nu) PE :); mutsara wakaderera density polyethylene (LLDPE);
④ metallocene catalyzed polyethylene.

(2)Izvo zvinhu zve cast polypropylene firimu (CPP) inoshandiswa pakupisa chisimbiso zvinhu zvakati siyanei zvishoma neiyo yebiaxially yakatarisana polypropylene nekuda kwenzira dzakasiyana dzekugadzira. Izvo zvakanakira nekuipira kweCPP zvinoratidzwa mune zvinoenderana zvirimo zve "polypropylene".

(3) PVC (yakapfupikiswa sePVC) isina ruvara, yakajeka uye yakaoma resin ine yakasimba mamorekuru polarity uye yakasimba medmolecular simba, saka ine kuomarara kwakanaka uye inoomarara bhodhoro repurasitiki.

PVC yakachipa uye ichiita mabasa akawanda. Inogona kugadzirwa mumidziyo yakaoma yekupakira, mabhuru akajeka uye anochinja ekuputira mafirimu uye furo epurasitiki yekukochekera zvinhu. Nekuda kwehuturu hwayo uye kuora kwayo, kudyiwa kwayo kuri kudzikira uye zvishoma nezvishoma kunotsiviwa nezvimwe zvinhu.

(4) EVA (ethylene vinyl acetate copolymer) poly (ethylene vinyl acetate) (EVA) poly (ethylene vinyl acetate) (EVA) poly (ethylene vinyl acetate) (EVA) poly (ethylene vinyl acetate) (EVA) poly (ethylene vinyl acetate) ( EVA) poly (ethylene vinyl acetate) (EVA) poly (ethylene vinyl acetate) (eva-eva) poly (ethylene vinyl acetate) (EVA) poly (ethylene vinyl acetate) (EVA. EVA inopenya kana zvishoma mukaka chena yakasimba yakasimba ne copolymerization ye ethylene uye vinylacetic acid vhiniga. Iyo zvivakwa zvinoshanduka nezviri mukati memamoner maviri. Naizvozvo, kana uchisarudza iyo modhi yeEVA, inofanira kutsanangurwa maererano nekushandisa, uye inogona kushandiswa sepurasitiki, inopisa inyauka inonamira uye kupfeka. .
Eva inoshandiswa zvakanyanya senge yemukati mechikamu chemufirimu wakasanganiswa nekuda kwekunaka kwayo uye kusimba kwesimba kupisa. Inoshandiswa mune zvinonamatira, kupfeka, kupfeka, tambo yekudzivirira uye mutakuri wemavara nekunamira kwayo kwakanaka (kwakanaka kana kumwe kudhiraivha nezvakawanda polar uye zvisiri-polar zvinhu).

(5)PVDC (polyvinylidene chloride) PVDC inowanzoreva iyo copolymer ye vinylidene chloride. Iyo polymer inowanikwa ne polymerization ine yakakwira crystallinity, yakanyanya kudzikama poindi (185-200'c) uye padhuze neyakaora tembiricha (210-2250). Iyo ine kusarongeka kuenderana neyakajairika tackifier, saka zvinonetsa kuumbwa.
PVDC yakasimba uye yakajeka zvinhu zvine yakakwira crystallinity uye yero yero green. Iyo ine yakadzika kwazvo kutapudza mwero kumvura yekumedza gasi, gasi uye hwema, uye ine yakanakisa hunyoro kuramba, kumesa mweya uye kunhuwirira kuchengetedza. Iyo yakanaka kwazvo muganho wedziviriro yezvinhu. Iyo inopokana neacid, alkali uye akasiyana solvents, oiri inomira, inokanganisa uye yekuzvidzimisa kudzima.