Ngā rau polystyrene

He aha ngā pepa polystyrene?

He pepa kirihou pakari, māmā hoki ngā pepa polystyrene i hangaia mai i ngā monomer styrene kua whakapūmautia. He mea whakamahi noa ēnei i roto i ngā takai, i ngā ārai wera, i ngā tohu, me te whakatauira nā te mea he maha ngā whakamahinga me te ngāwari o te hanga. E wātea ana i roto i ngā matotoru me ngā whakaotinga rerekē, ā, e mahi ana ngā pepa polystyrene mō ngā kaupapa arumoni me ngā kaupapa ahumahi.

He aha ngā momo matua o ngā pepa polystyrene?

E rua ngā momo o ngā rau polystyrene: te Polystyrene Whānui (GPPS) me te Polystyrene Pānga Nui (HIPS). He tino mārama, he pakari hoki te GPPS, ā, he pai mō ngā tono mārama. He pakari ake te HIPS, ā, he ātete ki te pānga, e whakamahia ana mō ngā takai me ngā whakaaturanga hua.

He aha ngā whakamahinga noa o ngā pepa polystyrene?

He whānuitia te whakamahinga o ngā rau polystyrene puta noa i ngā ahumahi pēnei i te takai, te pānuitanga, te hanga, me ngā mahi toi. He rauemi pai ēnei mō ngā whakaaturanga hoko-wāhi, ngā tauira hoahoanga, me te whakakikorua pakitara. Hei tāpiri, he maha tonu te whakamahinga i roto i ngā tukanga hanga wera hei hanga hua kirihou āhua.

He pai ngā pepa polystyrene mō te whakamahi i waho?

Kāore ngā rau polystyrene e ātete ki te hihi UV, ā, ka pirau pea i te roanga o te wā e whiti ana te rā. Mō ngā whakamahinga o waho, e taunakihia ana kia whakamahia ngā momo paninga UV, paninga rānei. Ki te kore he parenga, ka pakarukaru, ka memeha haere te tae o te rauemi i roto i te wā.

Ka taea te hangarua i ngā rau polystyrene?

Ae, ka taea te hangarua i ngā rau polystyrene, ahakoa kei ngā whare o te rohe ngā kōwhiringa hangarua. Kei raro i te waehere kapia kirihou #6 ēnei, ā, me tukatuka motuhake. He maha ngā wā ka whakamahia anōtia te polystyrene hangarua ki ngā rauemi takai, ngā hua whakamahana, me ngā taputapu tari.

He haumaru ngā pepa polystyrene mō te pā ki te kai?

Ko te Polystyrene Pānga Nui (HIPS) e kiia ana he haumaru mō te kai ina hangaia kia tutuki ai ngā paerewa ture. He mea whakamahi noa mō ngā paepae kai, ngā taupoki, me ngā ipu. Me whakarite kia tutuki te rauemi i ngā ture a te FDA, a te EU rānei i mua i te whakamahinga ki ngā mahi kai.

Me pēhea te tapahi i ngā pepa polystyrene?

Ka taea te tapahi i ngā rau polystyrene mā te whakamahi i ngā taputapu maha pērā i ngā maripi mahi, ngā tapahi waea wera, ngā tapahi laser rānei. Mō ngā taha tika me te ma, inā koa i ngā rau matotoru, me whakamahi i te kani tēpu, i te pouara CNC rānei. Me whai tonu i ngā mahi ārai haumaru, me te whakamahi i ngā taputapu tiaki i te wā e tapahi ana.

Ka taea e koe te peita, te tā rānei ki runga i ngā rau polystyrene?

Ae, he tino pai te tānga o ngā rau polystyrene, ā, he whānuitia te whakamahinga mō te tā mata me te tā matihiko. Ka whakaaetia hoki te nuinga o ngā peita whakarewa me ngā peita kiriaku me te whakarite tika i te mata. Mā te paninga i te mata i mua ka taea te whakapai ake i te piri me te roa.

He ātete ngā rau polystyrene ki ngā matū?

He ātete matū ngawari te polystyrene, inā koa ki te wai, ki ngā waikawa, me ngā waipiro. Heoi, kāore e ātete ki ngā whakarewa pēnei i te acetone, ka taea te whakarewa, te whakapē rānei i te rauemi. Me manatoko tonu te hototahitanga ki ētahi matū motuhake i mua i te whakamahinga.

He aha te ātete pāmahana o ngā pepa polystyrene?

Ka taea e ngā pepa polystyrene te tu atu i ngā pāmahana i waenga i te -40°C ki te 70°C (-40°F ki te 158°F). I ngā pāmahana teitei ake, ka tīmata pea te rauemi ki te piko, ki te whakangawari, ki te whakapē rānei. Kāore i te tūtohutia mō ngā taiao wera nui, mō ngā whakamahinga rānei e uru ana ki te mura tuwhera.