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Ko te tāwhai molekūlarē te whāinga tino maha o ngā whakamātautau molekūlarē i te whananga o ngā pōlimeri, ā, he whāinga nui ki ngā taumata o te kaha, o ngā mahi whakamātautau, me ngā whāinga o ngā hua pōlimeri i te whakamāhi. Ko te whakamātau i te whānanga o te kaha o te rere o te wāhi (IV) he whakamātau tātai, tūturu, me te whakamārama tino o te tāwhai molekūlarē o ngā pōlimeri, nō reira ko ia te whāinga tino o te whakamārama kounga. Kua whakamahinga e Hangzhou Zhongwang Technology Co., Ltd ngā whakamātautau rere tātai hāngai.
Te whakamārama i te whānanga o te kaha o te rere o te wāhi me ōna whāinga ki te tāwhai molekūlarē
Te whānanga o te wāhi: he māmā noa tēnei i te nui o te whānanga o tēnei huinga kōpū i te whānanga o tēnei whakamātautau iti. I te whakamāhi i te whānanga a Mark-Houwink, ka whai whānana ki te tāwhai o ngā rākau. Nō reira, ko te whānanga o te wāhi teitei he tohu mō te roa o te rākau, e hāngai ana ki te tāwhai o ngā rākau teitei, ā, ko te whānanga o te wāhi iti he tohu mō te poto o te rākau, e hāngai ana ki te tāwhai o ngā rākau iti.
He tauira, ko te PET āhua e whakamāhinga ana hei kōpū mō ngā pouaka, he whānanga o te wāhi i te waenganui o te 0.73 me te 0.86, i te rārangi o ngā kōpū mō ngā kākahu, he whānanga o te wāhi iti te hiahiatia. Ka taea hoki te whakamāhi i tēnei whānana hei whānanga rārangi, ā, ka whakamāhinga hei ara māmā hei whānanga i te tāwhai o ngā rākau, i te rārangi o ngā whānanga pūmau o te kōpū.
Ngā pānga ki ngā uara o ngā kōpū me ngā mahi whakamāhinga
Ko te IV hoki te whakamārama i ngā āhua matua o te kōpae. Ko ngā kōpae IV teitei he kaha ake i te tāwhiri, he pai ake ngā whaihua o te pākihi, me te whaihua pai ake o te whakamātautau i ngā pākihi o te taiao. Ko ngā kōpae IV teitei hoki e whakamana ana i ngā whaihua e hiahiatia ana mō ngā whakamātau PET; ā, ko ngā rārangi IV teitei he mea matua i te whananga o ngā pouaka inu mātāwaka e hiahiatia ana te kaha o te pākihi, i te wā i tāwhai ai ngā rārangi IV iti i ngā whakamātau o ngā kākahu.
Ko ngā kōpae IV teitei e whai ana i te whakamātautau o te kaha o te rere, ā, ka rerekē ngā whakamātau o te whakamātautau mō ngā mahi pērā i te whakamātautau, te whakamātautau i te whakamātautau, me ānā. Me whakamātautau ngā kaiwhakamahi me te whakamāhi i ngā rārangi tika o te IV kia whanake ai ngā whakamātau me te mau tonu. Ko ngā hāinga pērā i te wā o te whakamātautau, te hāngā, me te rere o te wai i te wā o te whakamātautau e hāngai ana ki ngā rerekētanga o te IV, ahakoa ngā rerekētanga iti, nā reira he mea matua te whakamātautau tonu o te IV hei wāhanga o te whakamātautau kounga me te whakamātautau i ngā hāinga o te kōpae.
Ngā Whakamāhi o te Kontrola Kaitaumahi i te Tōpūtanga o ngā Huinga
Ko te whakamāhi i te IV i tēnei wā i ngā wāhanga rerekē o te tōpūtanga o ngā huinga. Ko ngā kaiwhakawhitinga i ngā huinga e tomātia ana te IV i te wā o te whakamāhi i ngā huinga, ā, ko tēnei he whāinga kia mōhio ai i a rātou i te whakamāhi i ngā huinga hei whakamāhi i ngā whāinga. Ko ngā kaiwhakamāhi anō hoki e whakamāhi ana i ngā huinga i te wā o tā rātou tuku mai ki te wāhi i mua i te whakakī i ngā kāpae hei whakamātautau i te kaitaumahi, ā, ko rātou anō hoki e whakamātautau ana i te kaitaumahi o ngā whakamāhi i ngā huinga i whakamāhinga mai i ngā huinga kua whakamāhinga anō/kua whakamāhinga anō.
I muri i te whakamāhi o te wāhanga whakamutunga, ka taea anō te whakamātātū i te IV kia whakamārama ai he kore i te whakamāhi i te whakamāngungu i te polymer ki raro i tōna whakamātautau āwhina. Ko tēnei whakamātātū he mea matua mō te hāpaitanga. Ko ngā whakamāhi hāpaitanga e whakamahi ana i te IV hei whakamātautau kounga mō ngā pākoro mai i waho me ngā pākoro hāpaitanga. Ko te whakamāhi o te whakamāngungu ā-ahua (SSP) e whakakaha ana i te IV o ngā PET hāpaitanga e kore pea i te whakamāngungu i te whakamāngungu ā-hiko, ā, ko ngā whakamātautau automatised o te IV e whakaaetia ana ngā kaihanga kia whiwhi i tēnei whakamātautau tino o te whakamāngungu o te MW i te mātātini o te 0.007 dL/g i te whakamāngungu e āki ana i ngā whakamāramatanga o ngā whakamāhi kia kaha ake.
Ngā Whakamātautau Automatised o tēnei wā mō te IV
Ko ngā kāpae whakamātautau mātātoko kāpae Ubbelohde, i te wā e whakamāhi ana i te whakamātautau pūmau, he pākeke me ngā mahi tāwhai. Ko ngā rākau mātātoko mātātoko kāpae e whakamāhi ana i te tātai o te kaimahi, ā, he māmā noa te rerekētanga o ngā whakamātautau. Ko ngā whāinga o ngā kāpae whakamātautau automati i ngā whakamāhi QC o te ahumahi ko te whakamāngōnga o te whakamātautau i te whakamātautau o tō PET me te whakamātautau anō. Ko te whakapāpātanga ake ki ngā rerekētanga iti i ngā whakarere o ngā molekū i hanga i te polymer, ā, he whakamārama tonu ki ngā tauira e whakamāhi ana i tēnei wā mai i te extruder, i tō whakamāhi hoki i ngā tauira o te whakamāhi, kāore he mahi anō e hiahiatia.
Te whakamāhinga i te hāhā whakamātautau e whakakaha ana i tōu wā whakamātautau, e whakaiti ana i te maha o ngā hiko (solvent) e whakamahinga ana koe, ā, he mea nui rawa atu, he whakamāhinga hei whakamātautau i ngā putanga hei whakamātautau mō ngā whakatau i tēnei wā. Ko ngā rākau whakamātautau he whakamātautau kia tāwhai ai te whāinga o te 2% o te pātai whakamātautau (standard deviation) mō te QC. I te tango i te whakamahi a te tangata i ngā hiko (chemicals) e whai pāhiwi ana, ko ngā rākau whakamāhinga he whakapai ake mō te haumārere o ngā kaimahi, ā, ko ngā whakamāhinga anō hoki.
Whakarāpopoto
Ko te whakamātautau i te whānuitanga o te rere (IV) o ngā kōpae tuatahi me ngā hua mutimuti i te whakamahinga o ngā pōlimeri he whakamātautau matua, tawhito, me te whakamātautau tika o te tau o ngā molekūr, ā, ko tēnei he wāhanga o ngā taonga o ngā hua, o ngā whakamahinga, me ngā whāinga o ngā hua. Ko ngā taputapu whakamātautau i te whānuitanga o ngā rere o tēnei wā, e whakamāhinga ana, he tino pai, tika, me te haumaru mo ngā whakamahinga i te whakamahinga i ngā taputapu e whakamāhinga ana i ngā rere. I te Hangzhou Zhongwang Technology Co., Ltd., kei te whai mātou i tēnei wā i te whananga i ngā hua hou o te whakamāhinga o ngā rere me ngā whakamātautau i te whānuitanga o ngā rere mō tōu whakamahinga. Whakapā mai ki a tātou hei whakamātautau i te āhua o ngā viscometers e whakamāhinga ana i te whakamātautau o te kounga o te whakamahinga o ngā pōlimeri.