Ngā Pūrongo
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Te Tātari i ngā Huringa o ngā Momo Whakamahinga PE o raro i te awa ā muri ake nei.
I tēnei wā, he nui te rahinga o te polyethylene e whakamahia ana i tōku whenua, ā, he uaua te whakarōpūtanga o ngā momo o raro iho, ā, ko te nuinga ka hokona tika ki ngā kaihanga hua kirihou. Nō roto i te wāhanga hua whakamutunga i roto i te mekameka ahumahi o raro iho o te ethylene. I te taha o te pānga o te kukū ā-rohe o te kai ā-whare, kāore i te taurite te rerekētanga o te tuku me te tono ā-rohe. Nā te whānui haere o te kaha whakaputa o ngā umanga whakaputa polyethylene o runga ake o tōku whenua i ngā tau tata nei, kua tino piki ake te taha tuku. I taua wā anō, nā te whakapai tonu o te whakaputa me te paerewa oranga o ngā kainoho, kua piki haere tonu te tono mō rātou i ngā tau tata nei. Heoi, mai i te haurua tuarua o te tau 202... -
He aha ngā momo rerekē o te Polypropylene?
E rua ngā momo matua o te polypropylene e wātea ana: ko ngā homopolymer me ngā copolymer. Ka wehea anō ngā copolymer ki ngā copolymer poraka me ngā copolymer matapōkere. He pai ake te uru o ia kāwai ki ētahi tono i ētahi atu. He maha ngā wā ka kiia te polypropylene ko te "maitai" o te umanga kirihou nā te maha o ngā huarahi ka taea te whakarerekē, te whakarite rānei kia pai ai te whakatutuki i tētahi kaupapa motuhake. Ka tutukihia tēnei mā te whakauru i ngā tāpiringa motuhake ki roto, mā te hanga rānei i tētahi huarahi tino motuhake. He āhuatanga nui tēnei urutau. He taumata whānui te polypropylene homopolymer. Ka taea e koe te whakaaro ki tēnei rite ki te āhua taunoa o te rauemi polypropylene. He waeine co-monomer te polypropylene poraka kua whakaritea ki roto i ngā poraka (arā, i roto i tētahi tauira auau) ā, kei roto... -
He aha ngā āhuatanga o te Polyvinyl Chloride (PVC)?
Ko ētahi o ngā āhuatanga tino nui o te Polyvinyl Chloride (PVC) ko: Te Matotoru: He tino matotoru te PVC ki te whakataurite ki te nuinga o ngā kirihou (te taumaha motuhake tata ki te 1.4) Te Ōhanga: He ngāwari te wātea o te PVC, ā, he iti te utu. Te Pakeke: He pai te tūnga o te PVC pakari mō te pakeke me te roa. Te Kaha: He tino kaha te kaha kume o te PVC pakari. He rauemi "thermoplastic" te Polyvinyl Chloride (he rerekē ki te "thermoset"), e pā ana ki te āhua o te urupare a te kirihou ki te wera. Ka wai ngā rauemi thermoplastic i tō rātou ira rewa (he awhe mō te PVC i waenga i te 100 nekehanga Celsius tino iti me ngā uara teitei ake pērā i te 260 nekehanga Celsius i runga i ngā tāpiringa). Ko tētahi āhuatanga matua whai hua mō ngā thermoplastic ko te taea te whakamahana ki tō rātou ira rewa, te whakamatao, me te whakamahana anō... -
He aha te houra tunutunu?
I te haerenga noa ki te hūpermakete, ka hoko pea ngā kaihoko i te hopi horoi, ka hoko i tētahi pounamu aspirin, ka titiro ki ngā pane hou o ngā niupepa me ngā maheni. I te tirohanga tuatahi, te āhua nei kāore ēnei taonga i te tino ōrite. Heoi, mō ia o ēnei, he mahi nui te houra tunutunu i roto i ā rātou rārangi kai, i ngā tukanga hanga rānei. He aha te houra tunutunu? Ko te houra tunutunu te matū konutai hauwai (NaOH). He kawakore tēnei matū – he momo turanga ka taea te whakakore i ngā waikawa, ā, ka wairewa ki te wai. I ēnei rā, ka taea te hanga houra tunutunu hei pirepire, hei kirikiri, hei paura, hei otinga me ētahi atu. He aha te whakamahinga o te houra tunutunu? Kua noho te houra tunutunu hei wāhanga noa i roto i te hanga o ngā taonga o ia rā. E mōhiotia whānuitia ana ko te rai, kua whakamahia ki... -
He aha i whakamahia pinepine ai te Polypropylene?
E whakamahia ana te polypropylene i roto i ngā mahi ā-whare me ngā mahi ahumahi. Nā ōna āhuatanga ahurei me tōna kaha ki te urutau ki ngā momo tikanga hanga, he mea tino hirahira tēnei rauemi mō ngā momo whakamahinga. Ko tētahi atu āhuatanga tino hirahira ko te kaha o te polypropylene ki te mahi hei rauemi kirihou, hei muka hoki (pērā i ngā putea tote whakatairanga e hoatu ana i ngā huihuinga, i ngā reihi, me ētahi atu). Nā te kaha ahurei o te polypropylene ki te hanga mā roto i ngā tikanga rerekē me ngā mahi rerekē, i tere tonu te wero i te maha o ngā rauemi tawhito kē atu, inā koa i roto i ngā ahumahi takai, muka, me te werohanga werohanga. Kua mau tonu tōna tipu i roto i ngā tau, ā, kei te noho tonu hei kaitākaro nui i roto i te umanga kirihou puta noa i te ao. I Creative Mechanisms, kei a mātou... -
I karangatia a Chemdo ki te whai wāhi atu ki te hui i whakaritea ngātahitia e Google me Global Search.
E whakaatu ana ngā raraunga i roto i te momo tauwhitinga o te hokohoko ipurangi whakawhiti-rohe o Haina i te tau 2021, tata ki te 80% ngā tauwhitinga B2B whakawhiti-rohe. I te tau 2022, ka uru ngā whenua ki tētahi wāhanga hou o te whakatikatika i te mate urutā. Hei whakatau i te pānga o te mate urutā, kua noho te tīmatanga anō o te mahi me te whakaputa hei kupu rongonui mō ngā umanga kawemai me te kaweake ā-rohe me tāwāhi. Haunga te mate urutā, ko ngā āhuatanga pēnei i te pikinga o ngā utu rauemi mata i puta mai i te koretake o te tōrangapū ā-rohe, te pikinga tere o ngā utanga moana, te aukati i ngā kawemai i ngā tauranga ūnga, me te hekenga o ngā moni e pā ana i puta mai i te pikinga o te reiti huamoni o te tāra US, he pānga katoa ki ngā mekameka hokohoko o te ao katoa. I roto i tēnei āhuatanga uaua, i tū a Google me tana hoa mahi i Haina, Global Sou, i tētahi hui motuhake... -
He aha ngā kirikiri PVC?
Ko te PVC tētahi o ngā kirihou e whakamahia nuitia ana i roto i te rāngai ahumahi. Ko Plasticol, he kamupene Itari e tata ana ki Varese, kua neke atu i te 50 tau e hanga ana i ngā kirikiri PVC, ā, nā te wheako i kohia i roto i ngā tau kua hipa i taea ai e te pakihi te whiwhi i tētahi taumata hohonu o te mōhiotanga ka taea e mātou te whakamahi hei whakatutuki i ngā tono katoa a ngā kiritaki e tuku ana i ngā hua auaha me te pono. Ko te meka e whakamahia whānuitia ana te PVC mō te hanga i ngā taonga maha e whakaatu ana i te tino whai hua me te motuhake o ōna āhuatanga ā-roto. Me tīmata tātou ki te kōrero mō te pakari o te PVC: he tino pakari te rauemi mena he parakore engari ka ngāwari mena ka konatunatua ki ētahi atu matū. Nā tēnei āhuatanga motuhake ka pai ai te PVC mō te hanga hua e whakamahia ana i roto i ngā mara rerekē, mai i te hanga kotahi t... -
Ka taea e te kanapa pirau-koiora te huri i te umanga whakapaipai.
Kī tonu te ao i ngā takai kanapa, ngā pounamu whakapaipai, ngā peihana hua me te maha atu, engari he maha o ēnei he mea hanga ki ngā rauemi paitini me te kore e pumau, e whai wāhi ana ki te parahanga kirihou. Nō nā tata nei, kua kitea e ngā kairangahau i Te Whare Wānanga o Cambridge i te UK he huarahi hei hanga i te kanapa pumau, kore-paitini me te pirau mai i te cellulose, te poraka hanga matua o ngā pakitara pūtau o ngā tipu, ngā hua me ngā huawhenua. I whakaputaina ngā pepa e pā ana ki roto i te hautaka Nature Materials i te 11 o ngā rā. He mea hanga mai i ngā nanocrystals cellulose, ka whakamahia e tēnei kanapa te tae hanganga hei whakarerekē i te māramatanga hei whakaputa tae kanapa. I roto i te taiao, hei tauira, ko ngā kanapa o ngā parirau pūrerehua me ngā huruhuru pīkoka he mahi toi o te tae hanganga, e kore e memeha i muri i te rautau. Mā te whakamahi i ngā tikanga whakakotahi-ake, ka taea e te cellulose te whakaputa ... -
He aha te kapia whakapiri Polyvinyl chloride (PVC)?
Ko te Resin Polyvinyl chloride (PVC) , e ai ki te ingoa, ko tēnei resin te nuinga o te wā e whakamahia ana i roto i te āhua whakapiri. He maha ngā tāngata e whakamahi ana i tēnei momo whakapiri hei plastisol, he momo wai ahurei o te kirihou PVC i roto i tōna āhua kāore anō kia tukatukahia. . He maha ngā wā ka whakaritea ngā resin whakapiri mā te whakamahi i ngā tikanga whakaemulsion me te micro-suspension. He iti te rahi o te matūriki o te resin Polyvinyl chloride, ā, he rite tōna kakano ki te talc, kāore e taea te neke. Ka konatunatua te resin polyvinyl chloride ki te Plasticizer, kātahi ka whakaohokia kia hanga he whakatārewatanga pumau, ka hangaia hei whakapiri PVC, hei plastisol PVC rānei, hei sol PVC rānei, ā, i roto i tēnei āhua ka whakamahia te tangata ki te tukatuka i ngā Hua whakamutunga. I roto i te tukanga hanga whakapiri, ka tāpirihia ngā momo whakakī, ngā wairewa, ngā whakaū wera, ngā kaihoko pahuka me ngā whakaū mārama kia rite ki te ... -
He aha a PP Films?
NGĀ ĀHUATANGA He kirihou wera iti te utu o te polypropylene, te PP rānei, he mārama teitei, he kanapa teitei, he kaha kume pai. He teitei ake tōna ira rewa i te PE, ā, he pai mō ngā tono e hiahia ana kia whakahoromatahia i ngā pāmahana teitei. He iti ake hoki te kohu, he kanapa ake hoki. I te nuinga o te wā, kāore ngā āhuatanga hiri-wera o te PP i te pai ki ērā o te LDPE. He pai ake te kaha haehae o te LDPE, ā, he iti hoki te ātete ki te pānga i te pāmahana. Ka taea te whakarewa i te PP, ka hua ake he pai ake ngā āhuatanga ārai hau mō ngā tono uaua e nui ai te roa o te oranga o te hua. He pai ngā kiriata PP mō te whānuitanga o ngā tono ahumahi, kaihoko, me te motuka. Ka taea te hangarua katoa i te PP, ā, ka taea te tukatuka ngāwari ki roto i te maha atu o ngā hua mō ngā tono rerekē. Heoi, kāore... -
He aha te mea he matū PVC?
Ko ngā matū PVC e ahu mai ana i te whakakotahitanga o te polymer PVC RESIN me ngā tāpiringa e homai ana i te whakatakotoranga e tika ana mō te whakamahinga whakamutunga (Paipa, Kōtaha Pakari, Kōtaha Ngāwari, Rau rānei). Ka hangaia te matū mā te whakaranu piri i ngā kai, ka hurihia hei mea "whakakī" i raro i te mana o te wera me te kaha kutikuti. I runga i te momo PVC me ngā tāpiringa, ko te matū i mua i te whakakī ka taea te waiho hei paura rere noa (e mōhiotia ana ko te ranunga maroke) he wai rānei i te ahua o te whakapiri, o te otinga rānei. Ko ngā matū PVC ina hangaia, mā te whakamahi i ngā mea whakapūmau, hei rauemi ngāwari, e kiia ana ko te PVC-P. Ko ngā matū PVC ina hangaia me te kore he mea whakapūmau mō ngā tono pakari ka tohua ko te PVC-U. Ka taea te whakarapopoto i te Whakapūmau PVC penei: Ko te PVC pakari... -
Te Rerekētanga i waenga i ngā Pēke BOPP, OPP me PP.
Ko te nuinga o te wā, ka whakamahia e te umanga kai ngā takai kirihou BOPP. He ngāwari te tā, te pani me te whakakikorua i ngā putea BOPP, ā, he pai mō te tākai i ngā hua hou, ngā mea reka me ngā kai mātotoru. Haunga te BOPP, ka whakamahia hoki ngā putea OPP, me te PP mō te tākai. Ko te Polypropylene tētahi pūmua noa i roto i ngā mea e toru e whakamahia ana mō te hanga i ngā putea. Ko te OPP he tohu mō te Oriented Polypropylene, ko te BOPP he tohu mō te Biaxially Oriented Polypropylene, ā, ko te PP he tohu mō te Polypropylene. He rerekē te momo hanga o ēnei mea e toru. Ko te Polypropylene, e mōhiotia ana ko te polypropene, he pūmua haurua-kiriata thermoplastic. He pakari, he kaha, ā, he ātete ki te pānga. Ko ngā putea tū, ngā putea waha me ngā putea ziplock he mea hanga mai i te polypropylene. He tino uaua ki te wehewehe i waenga i te OPP, te BOPP me te PP plas...