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He aha nga taonga waiariki o nga taonga polymer

August 19, 2024
He aha nga taonga waiariki o nga taonga polymer?
1. Te nuinga o te whanaketanga waiariki
Ko te mea nui o te whanaketanga waiariki ko te huringa ōrau te roa o te rauemi mo ia 1 ° C te huri i te pāmahana. Ko te tau toharite o te whanaketanga raina e whakaatu ana i nga ahuatanga o te raina o te rauemi i roto i te waahanga pāmahana.
Ko te mea toharite o te whanaketanga raina, α, ka kiia kia rite ki nga tauira e whai ake nei:
linear expansion coefficient
Kei hea te uara o te kaupapa matua o te huringa roa o te tauira i te wa o te hora, te mm; l ko te roa o te tauira i te pāmahana o te rūma, mm; Δt te rereketanga o te pāmahana o te tauira i te teitei pāmahana pāmahana pāmahana, ℃.
Paerewa whakamatautau: GB / T1036-2008 te whakatau o te nui o te whanaketanga o te raima mai i te -30 ℃ ki te 30 ℃ quartz whakarahi mita te tikanga.
2. Te whanonga waiariki
Ko te hononga waiariki (te haangai mate) e tohu ana i te tere o te whakahekenga wera i raro i te waahanga whakawhiti wera i raro i te waahanga o te waahanga, e kiia ana hoki he mea nui mo te whanonga waiariki.
Ko te whanonga waiariki e kiia ana e te tauira e whai ake nei
thermal conductivity
Kei te Q ko te tikanga o te waiariki o te tauira i te wa tonu, j; S ko te matotoru o te tauira, m; A ko te waahanga whakawhiti wera wera o te tauira, M2; ΔZ ko te wa roa o te inenga, s; Δt te rereketanga o te pāmahana toharite i waenga i te pereti wera me te makariri, K.
Test standard: GB/T 3399-1982 Thermal conductivity test method for plastics Thermal plate method.
3. Te kaha wera
Ko te kaha wera motuhake (te kaha wera motuhake) kei roto i nga tikanga kua tohua, ka piki te puranga o te pāmahana o te pāmahana, e kiia ana ko te kaha wera o te rauemi.
Ko te kaha wera motuhake e kiia ana kia rite ki nga tauira e whai ake nei:
specific heat fusion
Kei hea te δQ te wera i uru mai ai e te tauira, j; m te papatipu o te tauira, kg; Δt te rereketanga o te pāmahana i mua me te whai muri i te whaihua o te kaitoi, K.
Paerewa Whakamatau: GB / T 3140-2005 Tikanga Whakamatau mo te kaha o te wera wera o te muka o te muka
Thermal properties of polymer materials
4. Te pāmahana whakawhiti karaihe
Ko te Amorphous, ko te tioata semi-crystalhine, mai i te rerenga rerenga, mai i te ahua karaihe nui ranei ki te karaihe o te whakawhiti ka kiia ko te whakawhitinga karaihe. Ko te whakawhitinga karaihe ka puta i roto i te whānuitanga o te pāmahana kuiti, ko te pāmahana i tōna tata o te waenganui e kiia ana ko te pāmahana whakawhiti karaihe (te pāmahana whakawhiti karaihe).
Te pāmahana whakawhiti karaihe, ko te tikanga me te pāmahana me te pāmahana ranei - te tikanga o te koikoi tuuturu; Ka taea hoki te whakamahi mo te tātaritanga waiariki rereke, penei i te TDA, DSC, te whakatau a TMA.
Whakamatau Paerewa GB / T 11998-89
5. Nga taonga miihini i te pāmahana iti
Ko nga taonga miihini i te pāmahana iti (nga taonga miihini i te pāmahana iti) e tohu ana i te whanonga miihini o nga rauemi i te pāmahana iti. Ko nga tikanga whakamatautau e whakamahia ana ko te paheketanga-te-pāmahana iti, te taatai ​​me te aukati me etahi atu tikanga.
Te pāmahana pāmahana (te pāmahana pāmahana): he mehua o te whanonga miihini pāmahana o te whanonga o nga polymers. Ma te kaha o te kaha o te Hammer Inter Propeiment Spendiment, i te wa e 50% o te pāmahana e kiia ana ko te pāmahana pakari (℃).
Paerewa Whakamatau: GB / T5470-2008 Pāpāho te ahunga whakamua whakamātautau pāmahana pāmahana pāmahana pāmahana.
6. Te ātete wera o Martten
Ko te Lest o Martten (Lest's Lest) e tohu ana ki te oumu whakawera, kia kore ai e tukuna te tauira o te pāmahana, ko te tauira i te mutunga o te mutunga o te mutunga o te mutunga o te mutunga o te mutunga o te mutunga o te mutunga o te mutunga o te mutunga o te mutunga o te mutunga o te mutunga o te mutunga o te mutunga o te mutunga o te mutunga o te mutunga o te mutunga o te mutunga o te mutunga o te mutunga o te mutunga o te mutunga o te mutunga o te mutunga o te mutunga o te mutunga o te mutunga o te mutunga o te mutunga o te mutunga o te mutunga o te mutunga o te mutunga o te mutunga o te mutunga o te mutunga o te mutunga o te mutunga o te mutunga o te mutunga o te mutunga o te mutunga o te mutunga o te mutunga o te mutunga o te mutunga o te mutunga o te mutunga o te mutunga o te mutunga o te mutunga. Te pāmahana (℃).
Paerewa Whakamatau: GB / T 1035-1970 Te Whakawhiwhinga wera kirihou (Martin) Tikanga Whakamatau
7. VICATE KI TE WHAKAMAHI
I raro i te ahuatanga o te whakawera tere, he tapawha papatahi me te taumaha kua tohua me te waahi whakawhiti-a L mm2 ka tukuna i runga i te tauira. I te wa e pehi ana te thimble papatahi i te hohonu o te pāmahana, ara, ko nga tauira rauemi e hiahiatia ana e te kaihoroi ngoikore (℃).
Paerewa Whakamatau: GB / T 1633-2000 Te Whakataunga o te pāmahana o te pāmahana (VST) o te thermoplastics
8. Te pāmahana waiariki
Ko te pāmahana waiariki (pāmahana waiariki) e tohu ana ki te pāmahana (℃) i te wa e pakaru ana te macromolecles o te rauemi i raro i te mate wera. Ka taea te whakatau e te tikanga wera o te wera, te tikanga pehanga rereketanga te tikanga kitenga hau ranei (ta).
9. Te whakaeke mura
Ko te riri o te mura e pa ana ki te kaha o te rauemi ki te patoi i te whakakotahi i te wa e pa ana ki te mura, ki te aukati i te whakakotahitanga o te ahi.
Paerewa whakamatautau:
Te tikanga whakamatautau GB / T2406-193-193-199
Te tikanga o te GB / T 2407-1980 mo te mahi whakahiato o te tikanga o te kiri kiri
GB / T 2408-199-199-1996 Te tikanga whakamatautau mo te mahi whakahiato o nga kirihou: Ko te tikanga whakapae me te tikanga mura
GB / T 4610-1984 Te inenga o te pāmahana o te pāmahana o te tikanga whakamātautau mahi kirihou
GB / T 8323-1987 Te tikanga whakamatautau mo te tahu i te mahi o te tikanga paowa paowa
GB / T 9638-198-1988 te inenga o te whakakotahitanga o te hinu o te hinu
Thermal properties of polymer materials
Whakapā mai

Author:

Ms. Tina

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