Kirihou Polystyrene (PS)
* Kirihou PS - polystyrene. He momo kirihou kei roto ko te rōpū styrene i roto i te mekameka macromolecular, ko ngā momo matua ko te polystyrene whānui (GPPS), te polystyrene pānga teitei (HIPS), te polystyrene whakawhānui (EPS) me te polystyrene metallocene (SPS) me ētahi atu. Ko ōna āhuatanga he kore tae, he kore kakara, he kore reka.
* Ngā hua kirihou PS kua whakaritea
He kirihou wera kore tae, he mārama hoki te polystyrene, he kapia polystyrene whānui, he pūhui kore-āhua, ko te polystyrene whānui e mōhiotia whānuitia ana ko te Styrofoam. He nui ake te pāmahana whakawhiti karāhe i te 100 nekehanga Celsius, nō reira he maha ngā wā e whakamahia ana hei hanga i ngā momo ipu whakakorekore e hiahia ana kia tu atu i te pāmahana o te wai kohua, pērā i ngā pouaka styrofoam.
He aha ngā mea ka taea e koe te hanga me te PS Plastic?
He mārama pai te PS (te tere tuku mārama o te 88% -92%), he kanapa te mata, he ngāwari ki te tae, he pakeke, he pakari, he pai hoki te ātete ki te wai, ki te matū me te rere o te tukatuka. Ko ōna ngoikoretanga matua: he pakarukaru, he iti te kaha pānga, he ngāwari ki te pakaru, he iti te ātete ki te wera.
Ko te PS te utu iti rawa o te hanga kirihou, e whakamahia whānuitia ana i roto i ngā hua whakakorekore. He whānuitia te whakamahinga i roto i ngā hua whakakorekore, pērā i ngā taputapu tēpu whakakorekore, me ngā tuhinga me ētahi atu mea o ia rā.
Ko ētahi tono mō te Polystyrene (PS) e whai ake nei:
- Ngā taputapu tēpu whakakorekore
- Ngā taputapu hiko
- Anga wāhanga hiko
- Tākai
- Ngā taonga tākaro a ngā tamariki
- Ipu Tākai
- Ārai rama
- Ngā Pouaka
- Ngā rauemi hanga
- Ngā hua kaihoko
- Taonga māra
- Ngā taputapu ako
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Ngā Āhuatanga o te Polystyrene (PS)
* I runga i te momo PS, ka taea te whakarōpū hei rauemi "thermoplastic" he rauemi "thermoset" rānei. E pā ana te ingoa ki te āhua o te urupare a te kirihou ki te wera. Ka wai katoa ngā rauemi thermoplastic i tōna ira rewa (210-249 nekehanga Celsius mō te Polystyrene), engari ka tīmata te rere i tōna ira whakawhiti karāhe (100 nekehanga Celsius mō te PS).
* Ko tētahi āhuatanga nui o ngā kirihou werawera ko te taea te whakamahana ki tōna taumata rewa, te whakamatao, me te whakamahana anō me te kore e tino pirau. Engari ko te tahunga, ka waimeha ngā kirihou werawera, ka taea ai te werohanga ngāwari, kātahi ka hangarua anō. He rerekē, ko ngā kirihou werawera, kāore e waimeha anō ina "whakatakotoria" ki te āhua totoka.
Me pēhea te hanga o te rauemi PS?
Ka hangaia te Polystyrene (PS) mā roto i ngā tikanga hanga (polymerization) pērā i te polymerization tika, te polymerization whakatārewatanga, te polymerization emulsion, te polymerization ionic me ētahi atu. Ko te tono ahumahi he polymerization tinana me te polymerization whakatārewatanga. Ināianei ko te hanga ahumahi o ngā kapia raupapa PS ka hangaia mā te tikanga polymerization tonu.
He pai te māramatanga me ngā āhuatanga hiko o te kapia PS i hangaia e te polymerization, engari kāore i te ōrite te tohatoha papatipu ngota ngota whanaunga, engari he ngāwari te whakahaere i te polymerization whakatārewatanga nā te pāmahana, he ngāwari te horapa o te wera tauhohenga, he ōrite te tohatoha taumaha ngota ngota o te hanga kapia PS, he whānui ngā āhuatanga o te mahi, engari ka waiho e te hua he iti noa te marara i roto i te hua, me ētahi atu.
Te hangarua kirihou Polystyrene (PS) me te tiaki taiao
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