1. Qalab kala duwan
shandado PPwaa xabagta polypropylene.Sababtoo ah homopolymer PP aad ayuu u jajaban yahay marka heerkulku ka sarreeyo 0C, alaabooyin badan oo PP ganacsi ah ayaa ah copolymers random oo leh 1 ~ 4% ethylene lagu daray ama isku dhejisyo leh maaddo ethylene sare leh.copolymer formula.
PC-ga ku jira shandad kombuyuutarku waa aka "polycarbonate".Polycarbonate waa resin thermoplastic adag oo magaceeda ka helay kooxaha CO3 ee ku dhex jira.By bisphenol A iyo kaarboon oxychloride synthesis.Habka ugu badan ee la isticmaalo waa habka transesterification dhalaalay (bisphenol A iyo diphenyl carbonate waxaa lagu farsameeyay transesterification iyo polycondensation).
2. Sifooyin kala duwan
Shandad PP: Qalabka PP-nooca-Copolymer-ka ayaa leh heerkul hoose oo qallooc ah (100C), daahfurnaan hooseeya, dhalaal yar, qallafsanaan hooseeya, laakiin wuxuu leeyahay awood saameyn xoog leh.Awoodda PP waxay kordhisaa iyada oo la kordhinayo maadada ethylene.Heerkulka jilicsan ee Vicat ee PP waa 150C.Sababtoo ah heerka sare ee crystallinity, maaddadani waxay leedahay qallafsanaan dusha sare ah iyo sifooyinka caabbinta xoqan.
Shandad PC: Waa resin thermoplastic amorphous leh sifooyin dhammaystiran oo heer sare ah, oo leh korantada korantada ee aad u fiican, dhererka, xasilloonida cabbirka iyo caabbinta kiimikada, xoogga sare, caabbinta kulaylka iyo caabbinta qabow;waxa kale oo uu leeyahay is-daminta, ololka retardant, aan sun ahayn, midab leh, iwm.
3. Xoog kala duwan
Shandad PP: waxay leeyihiin awood saamayn xoog leh.Qalafsanaanta dusha sare iyo sifooyinka caabbinta xoqan ee maaddadan ayaa aad u fiican.
Shandad PC: Xooggeedu waxa uu dabooli karaa baahiyo kala duwan min teleefannada gacanta ilaa muraayadda aanay xabbadu karin.Marka la barbardhigo birta, qallafsanaantiisu kuma filna, taas oo ka dhigaysa muuqaalkeeda si fudud in la xoqo, laakiin xooggeeda iyo adayggeeda ayaa aad u wanaagsan, haddii ay tahay cadaadis culus ama mid guud , ilaa iyo inta aanad isku dayin inaad ruxdo, way kugu filan tahay.