DMCHA Catalyst: Ngā Āhuatanga, Ngā Taupānga me te Aratohu Kaiwhakarato
He wāhanga nui te DMCHA i roto i te hanga rauemi polyurethane. Ka whakamahia e ngā kamupene te DMCHA hei tere ake i ngā tauhohenga i roto i ngā pūnaha polyurethane. Kei roto i ēnei pūnaha te whakamahana pahuka mārō me ētahi atu hua mō ngā wheketere. Ka āwhina ngā whakakorikori polyurethane amine pērā i te DMCHA ki te whakahaere i te ranunga o ngā tauhohenga whakapūkara me te pupuhi. E hiahiatia ana tēnei ranunga hei hanga pahuka polyurethane kaha me te whai hua. He maha ngā ahumahi e whakamahi ana i te polyurethane nā te mea he roa te mau, he pupuri i te wera ki roto, ā, ka taea te whakamahi i roto i ngā huarahi maha. He maha ngā kaimahi me ngā kaihoko e whiriwhiri ana i te DMCHA hei whiwhi hua pumau i te wa e hanga ana i te polyurethane.
Ngā Whakaaro Matua
- Mā te DMCHA ka tere ake, ka pai ake hoki te hanga o te polyurethane. Ka kaha ake, ka kounga teitei hoki ngā pahuka.
- Penapenahia te DMCHA i te ara tika. Puritia kia matao, kia maroke hoki. Katia pai ngā ipu kia pai ai te mahi.
- Ka mahi tahi te DMCHA me ngā polyol me ngā isocyanate maha. Nā tēnei ka whai hua mō ngā mahi polyurethane rerekē pērā i ngā pahuka pakari me ngā paninga.
- He mea nui te haumaru i te wā e whakamahi ana i te DMCHA. Kia mau ki ngā taputapu tiaki, kia whai hoki i ngā ture hei noho haumaru, hei karo hoki i ngā tūponotanga.
- Kōwhiria ngā kaiwhakarato paimō te DMCHA. Tirohia ngā tiwhikete me ngā arowhai kounga hei tiki i te DMCHA pai rawa atu.
He aha te DMCHA?
Hanganga Matū
Ko te tikanga o te DMCHA ko te N,N-Dimethylcyclohexylamine. He wāhanga ia o te rōpū whakakorikori amine e whakamahia ana hei hanga polyurethane. He mowhiti cyclohexyl tō te DMCHA e honoa ana ki te rōpū dimethylamine. Mā tēnei whakaritenga ka hoatu he āhuatanga matū motuhake ki te DMCHA, ā, ka āwhina i a ia ki te mahi hei whakakorikori.
He mea nui ki ngā kaihanga me ngā kaihoko te tātai ngota me te taumaha o te DMCHA. Ka kitea ēnei āhuatanga i te ripanga i raro nei:
| Tātai Ngota | Taumaha ngota |
|---|---|
| C8H17N | 127.23 karamu/mol |
He nui te mowhiti cyclohexyl, ā, ka pā ki te āhua taketake me te tauhohenga o te DMCHA. Mā te rōpū dimethylamine ka āwhina i te DMCHA ki te mahi hei turanga. Mā ēnei wāhanga e mahi tahi ai te DMCHA hei whakakorikori pai mō ngā tauhohenga polyurethane. Mā te whakamahi i te dmcha tino parakore ka āwhina i ngā wheketere ki te whiwhi hua pumau.
Te Tūranga i roto i ngā Whakakōkī Amine Polyurethane
He mea tino nui te DMCHA mō te hanga polyurethane. He mea whakakorikori, ā, ka tere ake te tauhohenga i waenga i ngā polyol me ngā isocyanate. He torutoru ngā taahiraa o te tukanga:
Mā tēnei tukanga ka taurite te tauhohenga o te whakapūkara me te pupuhi. Ka āwhina te DMCHA ki te hanga i ngā āhua pūtau ōrite i roto i te pahuka mārō. Ka māmā ake hoki te tukanga, ā, ka homai he kounga pahuka pumau.
Tohutohu: Mā te tāpiri i te dmcha ki te polyurethane ka pai ake te pahuka, ka penapena wā hoki.
Nā te hanganga o te DMCHA me tana mahi i rongonui ai i waenga i te tini o ngā kaihanga. Ka tukuna he kaha ki te whakakorikori, ā, ka āwhina i te hanga rauemi pakari, kounga teitei.
Ngā Taonga o te DMCHA
Ngā Āhuatanga Ā-tinana
He rerekē te DMCHA i ētahi atungā whakakorikori amine polyurethanenā ōna āhuatanga ā-tinana motuhake. Ka whakamahia e ngā kaihanga ēnei āhuatanga hei whiwhi hua pumau i roto i ngā hua polyurethane. E whakaatu ana te ripanga i raro nei i ngā āhuatanga ā-tinana matua o te dmcha:
| Taonga | Uara |
|---|---|
| Kiato | 0.845 g/cm³ i te 20 °C |
| Taupū Whakaata | 1.446–1.448 i te 20 °C |
| Te matotoru | 1.4 cP i te 25 °C |
Mā ēnei tau ka mōhio te tangata ki te mahi a te DMCH i roto i ngā ranunga polyurethane rerekē. Nā te iti o te matotoru ka ngāwari te whakaranu i te DMCH. Mā te matotoru me te taupū whakaata ka taea te tirotiro i te kounga i te wā e hangaia ana.
Ngā Āhuatanga Matū
He taumata waenga te matū o te DMCHA ki te whakataurite ki ētahi atu whakakorikori amine. Nā tēnei he pai mō te āwhina i te tauhohenga i waenga i ngā polyol me ngā isocyanate i te wā e hanga ana i te polyurethane. E whakaatu ana te ripanga i raro nei i te whakataurite o te dmcha ki tētahi atu whakakorikori noa:
| Momo Whakakōkī | Taumata Taketake | Ngā Āhuatanga Mahi |
|---|---|---|
| DMCHA | Waenga | He tino wairewa i roto i ngā polyols, he ārahi i te tauhohenga |
| Te Triethylenediamine (DABCO) | Teitei | He tere ake te tauhohenga, he iti ake te mana whakahaere i te āhua |
Mā te matū waenga o te DMCHA ka taurite te tere o te tauhohenga. Mā tēnei taurite ka hanga he pahuka he hanganga ōrite, he kaha hoki ngā āhuatanga i roto i ngā hua polyurethane.
Kia mōhio: Ka āwhina te DMCHA i te pikinga o te pahuka i roto i ngā tauira polyurethane. Ka whakanui ake i te tauhohenga i waenga i ngā polyol me ngā isocyanates. Mā tēnei ka ōrite ngā pūtau pahuka, ka whakahaere hoki i te tere o te tipu o te pahuka. Ka meinga hoki e ia kia matotoru ake, kia mārō ake te pahuka, ka āwhina i te tere o te mahi, ā, ka whakaiti i te para.
Te Rokiroki me te Pūmautanga
He mea nui te penapena tika i te dmcha kia mau tonu ai ōna āhuatanga me te whakahaere haumaru hoki. Whāia ēnei mahi hei pupuri i te pumau o te whakakorikori:
- Penapena ki tētahi wāhi hauhautanga.
- Puritia te ipu kia mau, kia kati ki te wāhi maroke, kia pai ai te rere o te hau.
- Katia anō ngā ipu i muri i te whakatuwheratanga, ka waiho kia tū tonu hei ārai i ngā turuturu.
Mā ēnei mahi ka noho haumaru te DMCH mai i te wai me te paru. Mā te rokiroki pai ka taea e ngā kaihanga te whakamahi i te DMCH me te kore e manukanuka ki ngā hua polyurethane.
Ngā Whakamahinga Ahumahi o te DMCHA
Ngā Pūnaha Pahuka Mārō
He mea tino nui te DMCHA i roto i ngā pūnaha pahuka pakari. Ka whakamahia e ngā kamupene tēnei whakakorikori hei hanga pahuka whakamahana mō ngā pouaka whakamātao, ngā panera whare, me ngā rūma rokiroki makariri. Mā te whakakorikori ka tere ake te tauhohenga i waenga i ngā polyol me ngā isocyanates. Ka āwhina tēnei ki te hanga pai i ngā pūtau pahuka, ā, ka noho ōrite te pahuka. Ka āwhina ngā whakakorikori amine polyurethane pērā i te DMCHA ki te taurite i ngā tauhohenga whakakorikori me te pupuhi. E hiahiatia ana tēnei taurite kia kaha, kia matotoru hoki te pahuka.
Kei konei te nui o te DMCHA e whakamahia ana i roto i ngā pūnaha pahuka mārō:
| Awhe Inenga | Pūtake Tātaitanga |
|---|---|
| 1-3 pbw | 100 pbw polyol |
Mā tēnei nui ka pai te hanga pahuka polyurethane. He tere te mahi a te DMCHA, ā, ka tere ake te hanga. Koia te take he maha ngā kamupene e whiriwhiri ana i te DMCHA mō te hanga i te maha o ngā pahuka whakamahana. Ka penapena moni rātou nā te mea he poto ake te wā e pau ana i te tukanga.
Kia mōhio: Ka āwhina te DMCHA ki te pupuri i te kounga o te pahuka kia pumau, ā, ka mau tonu te wera ki roto, ahakoa i ngā wāhi uaua.
Ētahi atu Whakamahinga Polyurethane
Ehara i te mea ko ngā pūnaha pahuka mārō anake te DMCHA. Ka whakamahia hoki te whakakorikori i roto i ngā paninga, ngā kāpia, me ngā rauemi mata.Ngā whakakorikori amine polyurethaneHe pai te mahi i ēnei whakamahinga. Ka āwhina i ngā mea kia tere te maroke, kia kaha ake hoki. Mā te DMCHA ka taea e ngā kaihanga te whakahaere i te tere o te tauhohenga. He mea nui tēnei mō ngā whakaotinga maeneene me ngā paninga pakari.
Ki te whakaritea ki ētahi atu whakakorikori amine, he maha ngā painga motuhake o te DMCHA:
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He tere te mahi a te DMCHA, nō reira ka tere ake te hanga hua. I ētahi wā, kāore e ōrite te matotoru o te pahuka i ngā wā katoa, engari he painga nui te penapena moni.
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Ka whiriwhiria te BL-17 ina hiahia kia tino pumau, kia matotoru hoki te pahuka. He mea nui tēnei mō ngā hua whakamahana tino pai.
Ka whiriwhiria e ngā kamupene te DMCHA ina hiahia rātou ki te tere me te penapena moni. Ka āwhina ngā whakakorikori amine polyurethane pērā i te DMCHA ki te whakapai ake i ngā paninga me ngā kāpia. Ka hanga hononga kaha, ā, ka āwhina i ngā hua kia roa i roto i ngā āhuatanga uaua.
Ngā Whakamahinga Ahumahi Tāpiri
Ehara i te mea ko te hanga pahuka polyurethane anake te mea whai hua mō te DMCHA. He āwhina te whakakorikori i roto i ngā ahumahi maha, ā, he pai ake hoki te hanga hua.
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Ahumahi Motuka:Ka whakamahia te DMCHA hei hanga nohoanga waka māmā, whakamarie hoki. Ka āwhina i te hau kia rere mā roto, ā, ka roa ake te ora o ngā nohoanga.
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Te Hanga Taonga Whare:Ka hangaia e te whakakorikori ngā pahuka ngohengohe mō ngā tūru, ngā moenga, me ngā urunga. He whakamarie ēnei pahuka, ā, he roa te wā e mau ana.
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Ngā Rauemi Hanga:Ka whakamahia te DMCHA i roto i ngā pahuka whakamahana hei pupuri i te wera ki roto, hei ārai hoki i te haruru. Ka āwhina ēnei mea i ngā whare ki te penapena pūngao.
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Ngā Otinga Tākai:Mā te whakakorikori ka āwhina i te hanga i ngā whakaurunga pahuka hei tiaki i ngā mea i te wā e tukuna ana. Ka ārai ēnei pahuka i te pakaru o ngā taonga.
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Hauora me te Manaaki Hauora:Ka whakamahia te DMCHA i roto i ngā pahuka ngohengohe hei tiaki tūroro. He whakamarie, he ma hoki ēnei pahuka.
Ka whakamahia hoki te DMCHA hei takawaenga matū, hei whakaū mō ngā hinu wahie, hei patu huakita me te ārai-pūmau:
- Waenga Matū:He wāhanga nui te DMCHA i roto i te hanga o ētahi atu matū, pērā i ngā rongoā me ngā matū pāmu.
- Pūmau mō ngā Hinu Wahie:Ka ārai te whakakorikori i ngā kapia me ngā mea piri kei hanga ki roto i te wahie. Mā tēnei ka roa ake te ora o te wahie.
- Kaiwhakamate me te Ārai Matepukupuku:Ka āwhina te DMCHA ki te aukati i te tipu o ngā iroriki me te pupuri i te hiko pateko kia kore e puta i roto i ngā wheketere.
Tohutohu: He maha ngā huarahi e taea ai te whakamahi i te DMCHA, nō reira he mea nui mō te maha o ngā ahumahi. Ka āwhina ngā whakakorikori amine polyurethane ki te hanga pahuka hou, pai ake, paninga, me ngā hua motuhake.
Mā ngā whakamahinga maha o te DMCHA e whakaatu te hiranga o tēnei mea i roto i ngā wheketere o ēnei rā. Mā ngā whakakorikori polyurethane amine pērā i te DMCHA ka āwhina i ngā kaihanga ki te whiwhi hua pai i roto i ngā pahuka, ngā paninga, me ngā hua motuhake. Ka whakawhirinaki ngā kamupene ki te DMCHA ki te whakatutuki i ā rātou hiahia me te whakarato i ngā otinga pai i roto i ngā mara maha.
Hototahi i roto i ngā Pūnaha Polyurethane
Hototahi ki ngā Polyol me ngā Isocyanates
He pai te mahi a te DMCHAme te maha o ngā polyol me ngā isocyanate. Ka whiriwhiria e ngā kaihanga te DMCHA nā te mea ka uru ki ngā polyol noa me ngā polyol motuhake. Ka āwhina te whakakorikori ki te pupuri i te tauhohenga kia pumau. He mea nui tēnei mō te hanga pahuka polyurethane pai. Kei te whakaatu te ripanga i raro nei me pēhea te mahi a te DMCHA me ngā polyol rerekē:
| Momo Polyol | Hototahi ki te DMCHA |
|---|---|
| Ngā polyol polyether tuku iho | Āe |
| Ngā polyols polyester | Āe |
| Ngā polyol tipu-pūtake | Āe |
He pai hoki te mahi tahi a te DMCHA me ngā isocyanates maha. Ko te tikanga ka taea e te tangata te whakamahi i te DMCHA i roto i ngā pūnaha polyurethane maha. Ka mahi mō te pahuka mārō me te pahuka ngohengohe. Ka āwhina te whakakorikori ki te hanga pahuka me ngā pūtau ōrite me te kounga pumau.
Kia mōhio: Nā te pai o te hototahitanga, ka taea te whakamahi i te DMCHA i roto i ngā ranunga polyurethane maha. Kāore e puta he pānga kino.
Te Pūmautanga o te Whakaranu Tuatahi
E hiahiatia ana te pumau o te ranunga-mua kia mau tonu ai te kounga o te pahuka. Ka taea e te DMCHA te whakarerekē i te roa o te ora o ngā ranunga-mua me te āhua o te pahuka. E whakaatu ana te ripanga i raro nei i te whakataurite o te DMCHA ki ētahi atu whakakorikori:
| Momo Whakakōkī | Pānga ki te Pūmautanga o te Premix |
|---|---|
| DMCHA | Te roa o te oranga me te hanganga pahuka ngoikore |
| Ngā whakakorikori amine kei roto te hāora | Te roa o te oranga me te whakarei ake i ngā āhuatanga pahuka |
He nui ake te tauhohenga a te DMCHA ki ngā hydrohaloolefins. Ka taea e tēnei te whakarerekē i te pumau o te premix. E whakaatu ana te ripanga i raro nei i tēnei pānga:
| Momo Whakakōkī | Te tauhohenga ki ngā Hydrohaloolefins |
|---|---|
| DMCHA | Te kaha o te tauhohenga |
| Ngā whakakorikori amine kei roto te hāora | He iti ake te tauhohenga |
Me āta tirotiro ngā kaihanga i te āhua o tā rātou penapena i ngā ranunga tuatahi me te DMCHA. Mēnā ka tika te whakahaere, ka noho pumau te pūnaha polyurethane, ā, ka puta he pahuka pai. Mā te whakamahi i te DMCHA ki ngā ranunga hou ka puta ngā hua pai rawa atu.
Tohutohu: Me tirotiro tonu te pumau o te ranunga i mua i te whakamahi i te DMCHA. Mā tēnei ka noho teitei te kounga me te mahi o te pahuka.
Ngā Whakaaro Haumaru me ngā Ture
Te Whakahaere Haumaru
Mā te whakahaere tika i te DMCHA ka noho haumaru ngā kaimahi, ka noho pai hoki ngā hua. Ka whai ngā tāngata i ngā wheketere i ngā ture hei whakaiti i ngā mōrearea:
- Mauria he karapu, he mōhiti kanohi, me ngā kākahu hei tiaki i a koe.
- Kaua e hongihia ngā kohu DMCHA; whakamahia ngā pā hau hei neke i te hau.
- Horoia pai ō ringaringa me tō kiri i muri i te pā atu ki te DMCHA.
- Whakatakotoria te DMCHA ki roto i ngā ipu pakari, kāore e waikura. Puritia kia matara atu i te rā me ngā mea kāore e uru ki roto.
- Me whakarite kia matao, kia maroke, kia whai hau hou hoki ngā wāhi rokiroki.
- Ki te maringi te DMCHA, kati wawe. Whakamahia he mea haumaru hei mimiti, ka maka atu kia rite ki ngā ture.
- Ki te uru te DMCHA ki roto i ō kanohi, horoia ki te wai mō te 15 meneti. Haere ki te tākuta.
- Ki te pā te DMCHA ki tō kiri, horoia ki te hopi me te wai. Tangohia ngā kākahu paru. Tirohia te tākuta mēnā he mamae tō kiri.
- Ki te manawa koe i te DMCHA, haere ki waho ki te tiki hau hou. Hoatu he hāora mēnā e tika ana.
- Ki te horomia e koe te DMCHA, kaua e meinga kia ruaki koe. Horoia tō waha, ka rapu awhina i te taote.
Te Paitini me te Whakamāramatanga
Ka pā kino pea te DMCHA ki te kore e tika te whakahaere. Me mōhio ngā kaimahi ki ngā pānga mō te wā poto me te wā roa kia noho haumaru ai. Kei te ripanga i raro nei ngā kōrero nui mō te paitini o te DMCHA:
| Momo Paitini | Whakaahuatanga |
|---|---|
| Te Paitini Kino | He āhua paitini te DMCHA mēnā ka horomia, ka pā rānei ki te kiri. Mā te manawa ka mamae tō korokoro, ka maremare, ka uaua hoki te manawa. Mā te pā ki te kiri ka mamae, ka wera, ka mate pāwera rānei. Mēnā ka uru te DMCHA ki ō kanohi, ka tino mamae, ka kino hoki ō kanohi. |
| Te Paitini Mau tonu | Kāore i te nui ngā mōhiotanga mō ngā pānga mō te wā roa. Mēnā ka roa te noho tata ki te DMCHA, ka pā kino pea ki tō ate me ō whatukuhu. Tērā pea ka pā ki te tipu o ngā pēpi. |
Te Whakatutukitanga o ngā Ture
Me whai te DMCHAngā ture tino pakari mō te whakamahinga haumarume te tuku kaipuke. Ka tirohia e ngā kaihanga me ngā kaihoko mēnā ka tutuki te DMCHA i ngā paerewa i ngā wāhi rerekē. Kei te ripanga i raro nei ngā ture matua mō te DMCHA:
| Ture | Mana Whakahaere | Whakaahuatanga |
|---|---|---|
| TAE ATU | EU | Me tirotiro, me rēhita, me whakahaere hoki ngā matū pēnei i te DMCHA. |
| CPSC | US | Ka whakawhāiti i ngā matū i roto i ngā taonga takaro kia noho haumaru ai ngā tamariki. |
| GB/T | Haina | Ngā Rārangingā ture haumaru mō ngā taonga tākaroā, e whakawhāiti ana i ngā matū. |
Aratohu Kaiwhakarato mō te DMCHA
Te Kōwhiri i ngā Kaiwhakarato Pono
He mea tino nui te whiriwhiri i tētahi kaiwhakarato DMCHA pai. Mā tēnei ka noho pumau, ka noho haumaru hoki te hanga. Me tirotiro e ngā kaihoko ngā kaiwhakarato mā te whakamahi i ngā ture māmā. E whakaatu ana te ripanga i raro nei i ngā mea hei tirotiro māu:
| Ngā Paearu | Whakaahuatanga |
|---|---|
| Ngā Tiwhikete | Kimihia ngā kaiwhakarato he tiwhikete ISO, he pepa raraunga haumaru rānei ā rātou. |
| Te Māramatanga o te Mekameka Tuku | Me whakamārama e ngā kaiwhakarato te wāhi me te pēhea e hangaia ai e rātou te DMCHA. |
| Ngā Tukanga Arotake | Tirohia ngā kaiwhakarato i ngā wā katoa. Whakahaerehia ngā arotake, tirohia hoki te āhua o tā rātou mahi. |
| Ngā Whakaaturanga a te Kiritaki | Ko ngā arotake pai mai i ētahi atu kaihoko e whakaatu ana he pono te kaiwhakarato. |
| Ngā Tauira Whakamātautau | Pātaihia ngā tauira i mua i te hoko i te maha. Mā tēnei ka tirohia mēnā he pai tonu te kounga. |
Mofanpu me ngā Auahatanga o te Mākete
He kaiwhakarato matua a Mofanpuo ngā whakakorikori amine polyurethane pērā i te DMCHA. Ka hokona e te kamupene ngā hua kounga teitei, ā, e whai ana i ngā ture tino pakari. Kei te tipu haere te mākete DMCHA mā te 5.2% i ia tau mai i te tau 2026 ki te 2033. He nui ake te hunga e hiahia ana ki te DMCHA mō ngā wāhanga hanga me ngā wāhanga motuka. E hiahia ana ngā ture hou ki ngā rauemi haumaru ake, nō reira ka whakamahia e ngā kaihanga ngā kaihoko whakamaroke pai ake. Kei te mahi ngā kamupene matū i Amerika Te Raki, i Ūropi, me Āhia-Moananui-a-Kiwa ki ngā huarahi matomato ake hei hanga i te DMCHA. He nui ake hoki ā rātou rangahau. Kei te mau tonu a Mofanpu i ēnei huringa. Ka hoatu e rātou he otinga hou, ā, ka āwhina i ngā kiritaki me ngā tohutohu a te tohunga.
Te Whakapūmau Kounga
He mea tino nui te tirotiro i te kounga ina hoko ana i te DMCHA. Me titiro ngā kaihoko ki ngā pepa me ngā tiwhikete a ngā kaiwhakarato kia tino whaihia ai ngā ture. Kei te ripanga i raro nei ngā tiwhikete me ngā ture nui:
| Tiwhikete/Whakahaere | Whakaahuatanga |
|---|---|
| TAE ATU | Ngā ture mō te rēhita me te tirotiro i ngā matū |
| TSCA | Te ture o Amerika mō te whakahaere i ngā matū paitini |
| ECHA | Ngā ture Pākehā mō te haumaru matū |
| AO WHĀNUI | Tiwhikete mō ngā mea whakapaipai taiao me te rauropi |
| NSF | Tiwhikete mō ngā hua kai me te wai haumaru |
| Halal | Tiwhikete mō ngā hua e whakaaetia ana i roto i te ture Ihirama |
| Kosher | Tiwhikete mō ngā hua e whakaaetia ana i roto i te ture Hūrai |
He mārama ngā painga o te DMCHA i te wā e hanga ana i te polyurethane. Nā te iti o te matotoru ka pai te whakaranu i ngā mea, ā, ka tere ake te hanga. He kaiwhakatairanga whakapūmau te DMCHA, ā, ka āwhina i te hanga pahuka kia ōrite, kia mau tonu ai te wera. Mā te mōhio ki ōna āhuatanga me tōna taunga ki ētahi atu rauemi ka pai ake ngā hua. He mea nui te whiriwhiri i ngā kaiwhakarato pai mō te haumaru me te kounga. Ki te hiahia koe ki te ako atu, tirohia ngā raraunga hangarau, ā, whiriwhiriangā kaiwhakarato pono:
| Ingoa Whakakōkī | Ngā Taumata Whakamahinga Noa | Mahi | Pānga ki ngā Taonga |
|---|---|---|---|
| DMCHA | 0.1-0.3 | Waenga | Whakakōkī whakapūkara, whakaora mata, paninga, elastomers |
| Ingoa Kaiwhakarato | Arotahi ki te Kounga | Te Makona o te Kaihoko |
|---|---|---|
| Koiora o Chuanghai | Āe | Teitei |
| Inchechem | Āe | Teitei |
| Ngā Matū SF | Āe | Teitei |
Ngā Pātai Auau
He aha te whakamahinga o te n,n-dimethylcyclohexylamine?
Ka whakamahia e ngā kaihanga te n,n-dimethylcyclohexylamine hei whakakorikori. Ka āwhina i te hanga hua polyurethane pērā i ngā pahuka pakari me ngā paninga. Ka āwhina hoki tēnei matū ki te hanga piri me ngā elastomers. Ka tere ake te tauhohenga, ā, ka whakapai ake i te kounga o te pahuka. He maha ngā wheketere e whakamahi ana mō ngā mahi rerekē.
Me pēhea te penapena i te n,n-dimethylcyclohexylamine?
Puritia te n,n-dimethylcyclohexylamine ki te wāhi hauhautanga, maroke hoki. Kia tino kati ngā ipu, kia tū hoki. Kaua e tukua te wai, te rā rānei kia pā ki a ia. Mā te penapena tika ka pumau, ka ma hoki te hua.
He hototahi te n,n-dimethylcyclohexylamine ki ngā polyol katoa?
He pai te mahi tahi a te n,n-dimethylcyclohexylamine me te maha o ngā polyol. Ka uru ki te polyether tikanga, te polyester, me ngā polyol tipu. Mā te whakamahi ka āwhina i te pahuka kia ōrite, ā, ka pai te mahi a te polyurethane.
He aha ngā mahi whakatūpato e tika ana mō te haumaru i te wā e whakamahi ana i te n,n-dimethylcyclohexylamine?
Mauria he karapu, he mōhiti kanohi, me ngā kākahu tiaki i te wā e whakamahia ana. Whakamahia he pā hau hei pupuri i te rere o te hau, hei whakaiti hoki i te tūponotanga o te kohu. Horoia pai tō kiri i muri i te pā atu. Me whai tonu i ngā pepa haumaru kia noho haumaru ai koe i te mahi.
Kei hea e kitea ai e ngā kaihoko te n,n-dimethylcyclohexylamine kounga teitei?
Ka taea e ngā kaihoko te tiki i te n,n-dimethylcyclohexylamine mai i ngā kaiwhakarato pono pēnei i a Mofanpu. Kōwhiria ngā kaiwhakarato he tiwhikete me ngā tukanga mārama. Kia tirohia tonutia e rātou te kounga. Pātaihia ngā tauira me te tirotiro i ngā pepa i mua i ngā ota nui.
Wā tuku: Hurae-22-2026