Koinei te arotake o te whakamahinga o ngā whakaū tine methyl i roto i te tukatuka PVC, i runga i ō rātou āhuatanga mahi me ngā mahi ahumahi:
1, Ngā horopaki tono me te urutau hangarau
1. Te tukatuka i ngā hua mārō mārama
He pai mō ngā pepa PVC mārama, ngā papa, ngā kiriata whakaiti wera mārama teitei me ētahi atu hua. Mā te whakamahi i tōna hototahitanga pai ki te kapia PVC, ka taea e te whakawhiti mārama o te hua te eke ki runga ake i te 90%, ā, kāore he ua, he kōwhai rānei.
2. Ngā tukanga noa: te hanga hurihuri, te hanga extrusion
Tātai i tūtohutia: Te nui tāpiri 1.2-1.6 phr (me te whakamahi i te matotoru kiriata 0.1-0.3mm hei tauira)
3. Te hanga o ngā paipa me ngā kōtaha
E whakamahia ana mō ngā rauemi hanga whare pērā i ngā paipa wai me ngā tatau me ngā matapihi kirihou, ka taea te pehi i te waikura me te pirau o te PVC i te wā tukatuka mā te pumau wera mō te wā roa, ā, ka roa ake te ora o ngā hua ātete ki te huarere neke atu i te 30%.
4. Mara tākai kai/rongoā
E tutuki ana i ngā paerewa akuaku o te EU ROHS me te US ASTM D3421, e whakamahia ana i roto i ngā ipu kai, ngā pounamu takai rongoā, me ētahi atu, kei raro iho i te 0.1 ppm te nui o te konganuku taumaha o te hua.
2、 Whakataurite i ngā painga o te tono
| Te whānuitanga o te mahi | Whakapūmau tine metil | Pūmau tote mata tuku iho |
| Āhuatanga tae tuatahi | Wai mārama | Ngāwari ki te kōwhai |
| Te whai huatanga o te pumau wera | Mō te wā roa (≥ 180 ℃ pumau tonu) | Te mōrearea nui o te korenga o te wā waenga |
| Te haumaru me te atawhai i te taiao | Te pumau tonu mō te wā roa (≥ 180 ℃) | Ngā poke mata/cadmium |
| Te āheinga ki te tukatuka | Hototahi ki te tukanga katoa o te PVC mārō/ngohengohe | Mō ngā hua mārō anake |
Kia mōhio: I ahu mai ngā raraunga i tētahi whakatairite i ngā inenga tuturu i mahia e ngā umanga tukatuka PVC i roto i te motu me te ao whānui.
3, Rautaki arotau mō te urutau tukanga
1. Hoahoa pūnaha whakakotahi
I te nuinga o te wā ka whakamahia ngātahitia me te hinu pīni soya kua whakapūkaratia (3-5 phr) me te konupūmā stearate (0.5-1 phr) hei whakapai ake i te rere o te rewa me te whakaiti i ngā uara taipana.
2. Te whakahaere i te pāmahana i te wā e tukatuka ana
E taunakihia ana kia whakatakotoria te pāmahana extrusion ki ngā wāhanga (160-185 ℃) hei karo i te pirau o ngā rōpū thiol i puta mai i te neke atu i te 210 ℃.
3. Maimoatanga ātete makuku
I te wā e rongoa ana, me pupuri te haumākū o te taiao i raro i te 60%. I mua i te tukatuka, me whakamaroke ngā rauemi mata PVC ki te 80 ℃ mō ngā haora e 2 hei ārai i te korenga o te waikura.
(Kia mōhio: He wai matotoru kore tae tēnei hua, ā, me penapena ki roto i tētahi wāhi hiri kia matara atu i te māramatanga.)
Wā tuku: Mei-19-2025
