Hydroxyethyl acrylate
Tirohanga Whānui o te Hua
Ko te Hydroxyethyl Acrylate (HEA) he monomer mahi kotahi e taea te whakamahi, ā, he poraka hanga matua hoki i roto i te matū polymer. Kei roto ko te here takirua kiriaku ka taea te polymerize me te rōpū hydroxyl tauhohe i roto i te ngota kotahi. Mā tēnei hanganga ka taea e ia te uru ki te copolymerization me te whānuitanga o ngā monomer me te whai wāhi atu ki ngā tauhohenga hononga whakawhiti. He wai mārama, kore tae ki te kōwhai mārama, ā, e mōhiotia ana mō te whakarei ake i ngā āhuatanga mahi o ngā hua polymeric whakamutunga, ahakoa he iti noa te whakamahinga.
Ngā Whakatakotoranga Matua
| Taonga | Whakatakotoranga / Uara Noa |
| Āhua | He wai mārama, kore tae ki te kōwhai mārama |
| Parakore (%) | ≥ 97.0 |
| Te Ihirangi Wai (%) | ≤ 0.5 |
| Ārai (MEHQ) | 200 ± 50 ppm (e ai ki te whakaritenga rānei) |
| Te waikawa (hei waikawa kiriaku) (%) | ≤ 0.05 |
| Tae (APHA) | ≤ 30 |
| Te mātotoru (20°C) | ~1.10 karamu/cm³ |
| Te Pūtake Kohua | ~ 90 °C (i te 5 mmHg) |
| Uara Hydroxyl (mg KOH/g) | ~ 480 |
Ngā Taupānga Matua
Nā ngā mahi takirua a te HEA, he mea nui tēnei mō ngā momo ahumahi maha:
Ngā paninga me ngā waituhi:
Ngā Paninga Whakamahana: He monomer matua i roto i ngā paninga motuka, ahumahi, me ngā taputapu. Ka honoa te rōpū hydroxyl ki ngā kapia melamine-formaldehyde, polyisocyanate rānei (i roto i ngā paninga PU), ka whakarato i te pakeketanga pai, te ātete matū, me te ātete ki te paru.
Ngā Pūnaha Whakaora-Irahiko: Whakamahia hei waimeha tauhohe me te hononga whakawhiti i roto i ngā paninga whakaora-UV/EB, waituhi, me ngā piripiri. He wāhanga matua tēnei i roto i te hanganga o ngā urethane acrylates.
Ngā Ātete Whakaahua me ngā Pūmua Ātete Whakaahua: E whakamahia ana i roto i te hanga kapia ātete whakaahua mō ngā pereti tā me ngā hikohiko (ngā semiconductor, ngā LCD).
Ngā Piripiri me ngā Hiri:
Ka whakapai ake i te kaha piri ki ngā momo papa, tae atu ki ngā konganuku me ngā kirihou.
Ka whakarei ake i te mātotoru hononga whakawhiti, ka hua ake he ātete wera pai rawa atu, he ātete matū, me te kaha piripono i roto i ngā piripiri hanganga me ngā piripiri tairongo-pēhanga (PSA).
Ngā Kakahu me ngā Muka:
Whakamahia hei co-monomer i roto i ngā kaihoko tukatuka muka me ngā paninga papanga hei whakarato i te ātete ki te wai, te ātete ki ngā kita, me te pakari.
Te Tukatuka Pepa:
Kua whakaurua ki roto i ngā whakatakotoranga paninga hei whakapai ake i te kaha mākū me te kaha maroke, te ātete ki te wai, me te āheinga ki te tā.
Ngā Whakamahinga Motuhake:
Ahumahi Hinu: He matū takawaenga mō te hanga hopi horoi me ngā tāpiringa whakamarara.
Hikohiko: Whakamahia hei rongoā whakamaroke i roto i te whakarite tauira i roto i te karu hikohiko.
Matū Tātari: He matū hei matū whakauru, hei wāhanga hoki i roto i ngā mea whakauru ka taea te whakaranu ki te wai.
Ngā Āhuatanga Matua me ngā Painga
Mahi Takirua: Mā te rōpū acrylate ka taea te whakakotahi i te polymerization, ko te rōpū hydroxyl ia ka taea te whakawhiti me te whakarerekētanga matū.
Mahi Whakapai Ake: Ka whakarato i te roa o te mau, te ātete matū, me te piri ki ngā pūmua whakamutunga.
Teitei o te Tauhohenga: Ka tere te whakakotahi me ngā acrylates, methacrylates, styrene, vinyl acetate, acrylonitrile, me ētahi atu.
Ngā Mahi Whānui: He pai mō ngā tukanga whakapūhui maha, tae atu ki te otinga, te whakaemulsion, me te whakapūhui whakatārewatanga.
Te Whai Hua o te Mahi: He whakapainga nui ki ngā āhuatanga o te hua ahakoa he iti te whakaurunga (te nuinga o te 2-10%).
Te Matatini Iti: He waimeha tauhohe whai hua i roto i ngā pūnaha ka taea te whakaora i te hihi, ā, ka āwhina ki te whakaiti i te matatini o te hanganga me te kore e whakamahi i ngā matū waro mimiti (VOC).
Te Whakahaere me te Rokiroki
Te Pāmahana Rokiroki: Rokiroki ki tētahi wāhi hauhautanga, pai te hauhautanga. Ko te pāmahana rokiroki e taunakitia ana kei waenga i te 2°C me te 25°C (36°F me te 77°F). Āraia te hukapapa me ngā pāmahana teitei.
Ārai: Kei roto te ārai MEHQ hei ārai i te whakapūhuitanga ohorere. Me whai hāora te ārai kia mahi; nō reira, he mea nui te penapena i raro i te āhuarangi kore mahi (hei tauira, te whakakī hauota) mō te pumau mō te wā roa.
Ipu: Penapena ki roto i ngā ipu hiri pūmau i hangaia ki te kowiri tira, ki te maitai kua whakakikoruatia ki te kapia phenolic, ki te polyethylene rānei. Āraia mai i te mārama.
Te Roa o te Paunga: I waenganui i te 6 ki te 12 marama mai i te rā i hangaia ai, ina rongoatia i raro i ngā tikanga kua tūtohutia.
Te Whakahaere: Whakamahia me te hauhautanga me ngā mana whakahaere hangarau e tika ana. Āta karohia te pa ki te kiri, ki ngā kanohi, me ngā kākahu. Mauria ngā taputapu tiaki whaiaro (PPE) e tika ana, tae atu ki ngā karapu ātete matū, ngā mōhiti haumaru, me ngā kākahu tiaki.