Ngā Pūrongo

Kupu Whakataki: Te Whakatau i ngā Wero Tukatuka o ngā Matū Polyolefin Ātete-Mumura ATH/MDH Utaina-Teitei

I roto i te umanga taura, he mea nui ngā whakaritenga pakari mō te ātete mura hei whakarite i te haumaru o ngā kaimahi me ngā taputapu mēnā ka puta he ahi. Ko te hauwai konumohe (ATH) me te hauwai konupora (MDH), hei ātete mura kore-halogen, e whakamahia whānuitia ana i roto i ngā matū taura polyolefin nā te mea he pai ki te taiao, he iti te tukunga paowa, me te tukunga hau kore-waikura. Heoi, ko te whakatutuki i te mahi ātete mura e hiahiatia ana me whakauru i ngā utaina teitei o te ATH me te MDH—te nuinga o te wā he 50–70 wt%, neke atu rānei—ki roto i te anga polyolefin.

Ahakoa he nui te whakakī e whakarei ake ana i te ātete mura, ka puta mai hoki ngā wero tukatuka nui, tae atu ki te pikinga o te matotoru rewa, te hekenga o te rere o te wai, te ngoikore o ngā āhuatanga miihini, me te kounga o te mata. Ka taea e ēnei take te whakawhāiti i te pai o te whakaputa me te kounga o te hua.

Ko te whāinga o tēnei tuhinga he tirotiro pūnaha i ngā wero tukatuka e pā ana ki ngā matū polyolefin ātete-ahi ATH/MDH kawenga-teitei i roto i ngā tono taura. I runga i ngā urupare mākete me ngā wheako mahi, katautuhi whai huatukatukangā tāpiringamōte aro atu ki ēnei wero. Ko ngā māramatanga kua whakaratohia he mea hei āwhina i ngā kaihanga waea me te taura ki te arotau i ngā hanganga me te whakapai ake i ngā tukanga whakaputa ina mahi ana me ngā matū polyolefin ATH/MDH taumaha-rahi e ātete ana ki te mura.

Te Mārama ki ngā Ārai Mumura o te ATH me te MDH

Ko te ATH me te MDH he mea nui e rua mō te aukati mura kore-hauora, e whakamahia whānuitia ana i roto i ngā rauemi pūmua, inā koa i roto i ngā tono taura kei reira ngā paerewa haumaru me te taiao teitei. Ka mahi rāua mā te pirau endothermic me te tuku wai, ka whakawai i ngā hau mura, ka hanga he paparanga waikura tiaki i runga i te mata o te rauemi, e pehi ana i te mura me te whakaiti i te paowa. Ka pirau te ATH i te 200–220°C pea, ko te MDH ia he pāmahana pirau teitei ake o te 330–340°C, ka pai ake te MDH mō ngā pūmua kua tukatukahia i ngā pāmahana teitei ake.

1. Ko ngā tikanga ārai-mumura o te ATH me te MDH ko:

1.1. Te wetewete ira-pāwera:

I te whakamahanatanga, ka pirau te ATH (Al(OH)₃) me te MDH (Mg(OH)₂) i roto i te wera nui, ka mimiti i te wera nui, ā, ka whakaheke i te pāmahana o te pūmua hei whakaroa i te pirau wera.

ATH: 2Al(OH)₃ → Al₂O₃ + 3H₂O, ΔH ≈ 1051 J/g

MDH: Mg(OH)₂ → MgO + H₂O, ΔH ≈ 1316 J/g

1.2. Te tukunga o te kohu wai:

Ka waimeha te kohu wai i ngā hau mura e karapoti ana i te pūhui, ka whakawhāiti i te urunga atu ki te hāora, ka aukati i te mura.

1.3. Te hanganga o ngā paparanga tiaki:

Ka honoa ngā waikura konganuku e puta mai ana (Al₂O₃ me te MgO) ki te paparanga waro pūmua hei hanga i tētahi paparanga tiaki matotoru, e aukati ana i te urunga o te wera me te hāora, e whakararuraru ana hoki i te tukunga o ngā hau mura.

1.4. Te pehi i te paoa:

Ka mimiti hoki te paparanga tiaki i ngā matūriki paowa, ka whakaiti i te matotoru o te paowa.

Ahakoa te pai o te mahi ātete-mumura me ngā painga taiao, ko te whakatutuki i ngā whakatauranga ātete-mumura teitei me hiahia te 50–70 wt%, neke atu rānei o te ATH/MDH, koinei te tino take o ngā wero tukatuka i muri mai.
2. Ngā Wero Tukatuka Matua o ngā Polyolefin ATH/MDH Utaina-Teitei i roto i ngā Taupānga Taura

2.1. Ngā āhuatanga rheological kua heke:

Ka tino whakanuia te matotoru o te rewa e ngā taumahatanga whakakī nui, ā, ka whakaitihia te rere o te wai. Nā tēnei ka uaua ake te whakakirikiri me te rere i te wā e whakatōngia ana, ka hiahiatia he pāmahana tukatuka me ngā kaha kutikuti teitei ake, ka nui ake te whakapaunga pūngao, ka tere ake te pakaru o ngā taputapu. Ka whakawhāitihia hoki te tere o te whakatōngia me te pai o te whakaputanga e te iti o te rere rewa.

2.2. Ngā āhuatanga ā-pūkaha kua whakaitihia:

Ka waimeha te hanganga pūmua i te nui o ngā whakakī kore-waro, ka tino heke te kaha kume, te roa i te whati, me te kaha pānga. Hei tauira, mā te whakauru i te 50% neke atu rānei o te ATH/MDH ka heke pea te kaha kume mā te 40% neke atu rānei, ka waiho hei wero mō ngā rauemi taura ngāwari me te pakari.

2.3. Ngā take marara:

He maha ngā wā ka huihui ngā matūriki ATH me MDH ki roto i te anga pūmua, ka hua ake he kukū ahotea, he ngoikore te mahi ā-pūkaha, me ngā hapa whakaputanga pērā i te taratara o te mata, i ngā mirumiru rānei.

2.4. Kounga mata ngoikore:

Mā te matotoru rewa nui, te marara ngoikore, me te iti o te hototahitanga o te whakakī-polymer ka pakarukaru, ka koretake rānei te āhua o ngā mata o te extrude, ka puta he "kiri mangō" he mate rānei. Ko te kohikohinga o te mate (te paru o te mate) ka pā ki te āhua me te mahi tonu.

2.5. Ngā pānga ki ngā āhuatanga hiko:

Ka pāngia pea ngā āhuatanga hikohiko e te nui o te whakakī me te marara kore taurite, pērā i te ātete rōrahi. Heoi anō, he tino kaha te mimiti makuku o te ATH/MDH, ka pā pea tēnei ki te mahi hiko me te pumau mō te wā roa i roto i ngā taiao makuku.

2.6. Matapihi tukatuka whaiti:

He whaiti te awhe pāmahana tukatuka mō ngā polyolefin ātete-mumura kawenga teitei. Ka tīmata te pirau o te ATH i te 200°C, ko te MDH ia ka pirau i te 330°C. Me whakahaere tika te pāmahana hei ārai i te pirau wawe, hei whakarite hoki i te mahi ātete-mumura me te pumau o ngā rauemi.

Nā ēnei wero ka uaua te tukatuka i ngā polyolefin ATH/MDH kawenga teitei, ā, e whakaatu ana i te hiahia mō ngā āwhina tukatuka whai hua.

Nō reira, hei whakatika i ēnei wero, kua whakawhanakehia, kua whakamahia hoki ngā āwhina tukatuka maha i roto i te umanga taura. Ka whakapai ake ēnei āwhina i te hototahitanga o te atanga polymer-whakakī, ka whakaiti i te matotoru rewa, ka whakarei ake i te marara o te whakakī, ka arotau i te mahi tukatuka me ngā āhuatanga miihini whakamutunga.

Ko ēhea ngā āwhina tukatuka e tino whai hua ana mō te whakaoti rapanga tukatuka me te kounga mata o ngā matū polyolefin ātete-mura ATH/MDH kawenga-teitei i roto i ngā tono ahumahi taura?

Ngā tāpiringa me ngā āwhina whakaputa i runga i te silicone:

He maha ngā momo mahi a SILIKEngā āwhina tukatuka e hangai ana ki te polysiloxanemō ngā kirihou wera paerewa me ngā kirihou hangarau, hei āwhina i te arotau i te tukatuka me te whakarei ake i te mahi a ngā hua kua oti. Kei roto i ā mātou otinga te masterbatch silicone pono LYSI-401 ki te tāpiri SC920 auaha—i hangaia hei whakarato i te pai me te pono ake i roto i te LSZH kawenga-teitei, kore-halogen me te HFFR LSZH cable extrusion.

Ina koa,Ngā tāpiri tukatuka hinu whakahinuhinu SILIKE UHMWkua whakamātauhia he whai hua mō ngā matū polyolefin ātete-mura ATH/MDH i roto i ngā taura. Ko ngā pānga matua ko:

1. Te whakaiti i te matotoru o te rewa: Ka heke ngā polysiloxanes ki te mata rewa i te wā e tukatukahia ana, ka hanga he kiriata whakahinuhinu e whakaiti ana i te waku me ngā taputapu, ā, ka whakapai ake i te rere o te wai.

2. Te horapa whakarei ake: Ka whakatairangahia e ngā Tāpiringa e hangai ana ki te Silicon te tohatoha ōrite o te ATH/MDH i roto i te matrix polymer, ka whakaitihia te whakahiato matūriki.

3. Te whakapai ake i te kounga o te mata:LYSI-401 pūmotu matua siliconeka whakaiti i te hanga o te mate me te pakaru rewa, ka whakaputa i ngā mata whakaputa maeneene ake me te iti ake o ngā hapa.

4. Te tere o te raina:Āwhina Tukatuka Hiraka SC920He pai mō te whakaputa tere o ngā taura. Ka taea e ia te ārai i te kore pumau o te diameter o te waea me te paheke o ngā tīwiri, ā, ka whakapai ake i te pai o te whakaputa. I te wā kotahi e pau ai te pūngao, ka piki ake te rahinga whakaputa mā te 10%.

5. Ngā āhuatanga hangarau kua whakapaitia: Mā te whakarei ake i te marara o te whakakī me te piri o te atanga, ka whakapai ake te silicone masterbatch i te ātete ki te kakahu me te mahi hangarau o te hiato, pērā i te āhuatanga pānga me te roa i te wā whati.

6. Te mahi tahi ātete-mura me te pehi paowa: ka taea e ngā tāpiringa siloxane te whakarei ake i te mahi ātete-mura (hei tauira, te whakanui ake i te LOI) me te whakaiti i te tukunga paowa.

Ko SILIKE tētahi o ngā kaihanga matua o ngā tāpiringa silicone, ngā āwhina tukatuka, me ngā elastomers silicone thermoplastic i te rohe o Āhia-Moana-nui-a-Kiwa.

Tō mātoungā āwhina tukatuka siliconee whakamahia whānuitia ana i roto i ngā ahumahi kirihou wera me te taura hei arotau i te tukatuka, hei whakapai ake i te mararatanga o ngā whakakī, hei whakaiti i te matotoru rewa, hei whakaputa i ngā mata maeneene ake me te pai ake o te mahi.

I roto i ēnei, ko te silicone masterbatch LYSI-401 me te SC920 silicone āwhina tukatuka he otinga kua whakamātauhia mō ngā hanganga polyolefin ātete-mura ATH/MDH, inā koa i roto i te LSZH me te HFFR taura extrusion. Mā te whakauru i ngā tāpiringa silicone-based me ngā āwhina whakaputa a SILIKE, ka taea e ngā kaihanga te whakatutuki i te whakaputa pumau me te kounga pumau.

If you are looking for silicone processing aids for ATH/MDH compounds, polysiloxane additives for flame-retardant polyolefins, silicone masterbatch for LSZH / HFFR cables, improve dispersion in ATH/MDH cable compounds, reduce melt viscosity flame-retardant polyolefin extrusion, cable extrusion processing additives, silicone-based extrusion aids for wires and cables, please visit www.siliketech.com or contact us at amy.wang@silike.cn to learn more.