Waikawa Methacrylic (waikawa 2-Methyl-2-propenoic)
| Ngā āhua matū | Ko te waikawa Methacrylic, he whakarāpopototanga o te MAA, he matū waro. He wai matotoru, kore tae tēnei, he waikawa carboxylic, he kakara kino, kawa hoki. Ka wairewa i roto i te wai mahana, ā, ka taea te whakaranu ki te nuinga o ngā whakarewa waro. Ka hangaia te waikawa Methacrylic i roto i te tauine nui hei matū mua mō ōna esters, inā koa ko te methyl methacrylate (MMA) me te poly(methyl methacrylate) (PMMA). He maha ngā whakamahinga o ngā methacrylates, inā koa i roto i te hanga polymers me ngā ingoa hokohoko pēnei i a Lucite me Plexiglas. Ka puta noa te MAA i roto i ngā rahinga iti i roto i te hinu o te chamomile Rōmana. | |
| Ngā tono | Ka whakamahia te waikawa methacrylic i roto i te hanga kapia me ngā kirihou methacrylate. Ka whakamahia hei Monomer mō ngā kapia me ngā polymer nui-rahi, te hanga rauropi. He maha ngā polymer e ahu mai ana i ngā esters o te waikawa, pērā i ngā esters methyl, butyl, isobutyl rānei. Ka whakamahia te waikawa methacrylic me ngā esters methacrylate hei whakarite i te whānuitanga o ngā polymer [→ Polyacrylamides me Poly(Acrylic Acids), → Polymethacrylates]. Ko te Poly(methyl methacrylate) te polymer matua i roto i tēnei kāwai, ā, ka whakaratohia he kirihou mārama-wai, pakari e whakamahia ana i roto i te ahua pepa i roto i te karaihe, ngā tohu, ngā whakaaturanga, me ngā panera rama. | |
| Ā-tinanaform | Māramawai | |
| Akomanga Tūpono | 8 | |
| Te roa o te oranga | E ai ki ō mātou wheako, ka taea te rongoa i te hua mō ngā marama 12 mai i te rā i tukuna ai mēnā ka rongoatia ki roto i ngā ipu hiri pūmau, ka tiakina mai i te mārama me te wera, ā, ka rongoatia hoki ki ngā pāmahana i waenga i te 5 - 30°C. | |
| Tngā āhuatanga noa
| Te pūwāhi rewa | 12-16 °C (whakamārama) |
| Te pūwāhi koropupū | 163 °C (whakamārama) | |
| matotoru | 1.015 g/mL i te 25 °C (i roto i te rama) | |
| te mātotoru o te kohu | >3 (vs hau) | |
| te pēhanga kohu | 1 mm Hg (20°C) | |
| taupū whakaata | n20/D 1.431(whakamārama) | |
| Fp | 170°F | |
| pāmahana rokiroki | Penapenahia i te +15°C ki te +25°C. | |
Haumaru
I te wā e whakamahi ana koe i tēnei hua, me mātua whai i ngā tohutohu me ngā mōhiohio kei roto i te pepa raraunga haumaru, ā, me whai hoki i ngā tikanga tiaki me ngā tikanga akuaku o te wāhi mahi e tika ana mō te whakamahi i ngā matū.
Tuhipoka
Ko ngā raraunga kei roto i tēnei pukapuka i ahu mai i ō mātou mōhiotanga me ngā wheako o nāianei. I runga i ngā āhuatanga maha ka pā ki te tukatuka me te whakamahinga o tā mātou hua, kāore ēnei raraunga e ārai i ngā kaitukatuka mai i te whakahaere i ā rātou ake rangahau me ngā whakamātautau; kāore hoki ēnei raraunga e kī ana he taurangi mō ētahi āhuatanga, kāore hoki i te tika o te hua mō tētahi kaupapa motuhake. Ko ngā whakaahuatanga, ngā tuhi, ngā whakaahua, ngā raraunga, ngā ōwehenga, ngā taumaha, me ētahi atu mea kua hoatu ki konei ka rerekē pea me te kore he mōhiohio o mua, ā, ehara i te mea ko te kounga kirimana kua whakaaetia o te hua. Ko te kounga kirimana kua whakaaetia o te hua ka puta mai i ngā kōrero i roto i te whakatakotoranga hua anake. Ko te kawenga a te kaiwhiwhi o tā mātou hua kia whakarite kia whaihia ngā mana rangatira me ngā ture me ngā ture o nāianei.
