Nhau

Nhanganyaya: Kugadzirisa Matambudziko Ekugadzirisa Makomponi ePolyolefin ATH/MDH Ane Mutoro Wakawanda

Muindasitiri yetambo, zvinodiwa zvakasimba zvekudzora moto zvakakosha kuti vashandi nemidziyo vagare vakachengeteka kana pakaitika moto. Aluminium hydroxide (ATH) nemagnesium hydroxide (MDH), sezvinodzivirira moto zvisina halogen, zvinoshandiswa zvakanyanya mu polyolefin cable compounds nekuda kwehushamwari hwadzo kune nharaunda, utsi hushoma, uye kuburitswa kwegasi risingaparadzi. Zvisinei, kuwana mashandiro anodiwa ekudzivirira moto kunowanzo dikanwa kuisa ATH neMDH yakawanda—kazhinji 50–70 wt% kana kupfuura—mu polyolefin matrix.

Kunyange zvazvo huwandu hwakawanda hwekuzadza huchinyanya kuwedzera kunonoka kwemoto, zvinounzawo matambudziko makuru ekugadzirisa, kusanganisira kuwedzera kwekunyunguduka kwemvura, kudzikira kwekuyerera kwemvura, kusagadzikana kwehunhu hwemakanika, uye hunhu husina kunaka hwepamusoro. Matambudziko aya anogona kukanganisa zvakanyanya kushanda zvakanaka kwekugadzira uye kunaka kwechigadzirwa.

Chinyorwa chino chine chinangwa chekuongorora zvakarongeka matambudziko ekugadzirisa ane chekuita neATH/MDH ine mutoro wakawanda wepolyolefin inodzivisa moto mumashandisirwo etambo. Zvichibva pamhinduro dzemusika uye ruzivo rwebasa,inoona inoshandakugadzirisazvinowedzerwayekugadzirisa matambudziko aya. Ruzivo rwunopihwa rwakagadzirirwa kubatsira vagadziri vewaya netambo kugadzirisa mafomura uye kuvandudza maitiro ekugadzira pavanenge vachishanda neATH/MDH ine flame-retardant polyolefin compounds ine mutoro wakanyanya.

Kunzwisisa ATH neMDH Flame Retardants

ATH neMDH zvinhu zviviri zvikuru zvinodzivisa moto zvisingasanganisike, zvisingapindike, zvinoshandiswa zvakanyanya muzvinhu zvepolymer, kunyanya mukushandiswa kwetambo uko mitemo yekuchengetedza nekuchengetedza nharaunda yakakwira. Zvinoshanda nekuora kwe endothermic uye kuburitswa kwemvura, zvichideredza magasi anobvira uye kugadzira ganda rekudzivirira oxide pamusoro pechinhu, izvo zvinoderedza kupisa uye zvinoderedza utsi. ATH inoora paanenge 200–220°C, nepo MDH ine tembiricha yakakwira yekuora ye330–340°C, zvichiita kuti MDH ive yakakodzera mapolymers anogadziriswa patembiricha yakakwira.

1. Nzira dzinodzora moto dzeATH neMDH dzinosanganisira:

1.1. Kuora kwe endothermic:

Pakudziisa, ATH (Al(OH)₃) uye MDH (Mg(OH)₂) dzinoora mu endothermic, zvichitora kupisa kwakanyanya uye zvichideredza tembiricha yepolymer kuti zvinonotse kudzikira kwekupisa.

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

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

1.2. Kuburitswa kwemvura ine utsi:

Utsi hwemvura hunoburitswa hunodzikisa magasi anobvira akakomberedza polymer uye hunodzivisa kupinda kweokisijeni, zvichidzivisa kutsva.

1.3. Kuumbwa kwezvikamu zvinodzivirira:

Ma oxide esimbi anobva abuda (Al₂O₃ neMgO) anosanganiswa ne polymer char layer kuti agadzire ganda rakakora rinodzivirira, iro rinovhara kupisa nekupinda kweokisijeni uye rinodzivisa kuburitswa kwemagasi anobvira.

1.4. Kuderedza utsi:

Rutivi urwu runodzivirira runonyudzawo zvidimbu zveutsi, zvichideredza kuwanda kweutsi.

Pasinei nekushanda kwavo kwakanaka kwazvo kunodzivirira moto uye mabhenefiti avo munzvimbo, kuwana mwero wepamusoro wekudzivirira moto kunowanzoda 50–70 wt% kana kupfuura yeATH/MDH, inova ndiyo honzeri huru yezvinetso zvekugadzirisa zvinotevera.
2. Matambudziko Akakosha Ekugadzirisa MaPolyolefins ATH/MDH Ane Mutoro Wakawanda Mukushandiswa Kwetambo

2.1. Hunhu hwe rheological hwakaderera:

Kuzadza kwakawanda kunowedzera zvakanyanya kunyunguduka kwemvura uye kunoderedza kuyerera kwemvura. Izvi zvinoita kuti kuumbwa kwepurasitiki nekuyerera kwemvura kuve kwakaoma panguva yekubuda kwemvura, zvichida tembiricha yepamusoro yekugadzirisa uye simba rekuchekerera, izvo zvinowedzera kushandiswa kwesimba uye zvinokurumidzisa kupera kwemidziyo. Kuderera kwekuyerera kwekunyunguduka kwemvura kunoderedzawo kukurumidza kwekubuda kwemvura uye kushanda zvakanaka kwekugadzira.

2.2. Kuderedzwa kwehunhu hwemakanika:

Huwandu hwakawanda hwezvinhu zvisingasanganisike zvinoderedza simba re polymer matrix, zvichideredza zvakanyanya simba rekudhonza, kureba pakuputsika, uye simba rekurovera. Semuenzaniso, kuisa 50% kana kupfuura ATH/MDH kunogona kuderedza simba rekudhonza neinenge 40% kana kupfuura, zvichikonzera dambudziko rezvinhu zvetambo zvinochinjika uye zvinogara kwenguva refu.

2.3. Matambudziko ekupararira:

Zvidimbu zveATH neMDH zvinowanzoungana mupolymer matrix, zvichikonzera nzvimbo dzekumanikidzwa, kudzikira kwekushanda kwemuchina, uye zvikanganiso zvekubuda kwechinhu zvakaita sekuoma kwenzvimbo kana mabubbles.

2.4. Hunhu husina kunaka hwepamusoro:

Kunyunguduka kwakanyanya, kupararira kusina kunaka, uye kusawirirana kwakakwana kwe filler-polymer zvinogona kukonzera kuti nzvimbo dziri kunze dzive dzakaomarara kana kuti dzisina kuenzana, zvichikonzera "sharkskin" kana kuti kufa kwakawanda. Kuunganidzwa kwemafuta padi (die drool) kunokanganisa chitarisiko uye kugadzirwa kunoramba kuripo.

2.5. Kukanganiswa kwemidziyo yemagetsi:

Kuzara kwakawanda uye kupararira kusina kuenzana zvinogona kukanganisa hunhu hwe dielectric, senge kusimba kwehuwandu. Uyezve, ATH/MDH ine hunyoro hwakawanda, izvo zvinogona kukanganisa mashandiro emagetsi uye kugadzikana kwenguva refu munzvimbo dzine hunyoro.

2.6. Hwindo rakamanikana rekugadzirisa:

Tembiricha yekushandiswa kwepolyolefins dzinodzora moto zvakanyanya yakamanikana. ATH inotanga kuora inosvika 200°C, ukuwo MDH ichiora inosvika 330°C. Kudzora tembiricha kwakanyatsojeka kunodiwa kudzivirira kuora kusati kwasvika nguva uye kuona kuti moto unodzivirira moto uye kuti zvinhu zvacho hazvina kuoma.

Matambudziko aya anoita kuti kugadzirisa ma polyolefin ane mutoro wakawanda kuve kwakaoma uye zvinoratidza kukosha kwezvinobatsira pakugadzirisa zvinobudirira.

Saka, kuti tigadzirise matambudziko aya, zvinhu zvakasiyana-siyana zvekugadzirisa zvakagadzirwa uye zvakashandiswa muindasitiri yetambo. Izvi zvinobatsira kuvandudza polymer-filler interfacial compatibility, kuderedza kunyunguduka kwemvura, uye kuwedzera kupararira kwefiller, zvichivandudza mashandiro ekugadzirisa uye hunhu hwekupedzisira hwemakanika.

Ndezvipi zvinhu zvinobatsira pakugadzirisa zvinhu zvinonyanya kushanda pakugadzirisa matambudziko ekugadzirisa zvinhu uye kunaka kwenzvimbo dzemakomputa epolyolefin ane mutoro wakawanda muindasitiri yetambo?

Zvimwe zvinowedzerwa zvakagadzirwa nesilicone uye zvinobatsira pakugadzira:

SILIKE inopa zvinhu zvakasiyana-siyanamishonga yekurapa yakavakirwa papolysiloxaneyepurasitiki yethermoplastics yakajairwa uye mapurasitiki einjiniya, zvichibatsira kugadzirisa nekugadzirisa uye kusimudzira mashandiro ezvigadzirwa zvakapedzwa. Mhinduro dzedu dzinotangira pasilicone masterbatch yakavimbika LYSI-401 kusvika kune itsva SC920 additive—yakagadzirwa kuti ipe kushanda kwakanaka uye kuvimbika mukuwedzera tambo yeLSZH ine mutoro wakawanda, isina halogen uye HFFR LSZH.

Zvikuru sei,Zvinowedzerwa pakugadzira mafuta eSILIKE UHMW akagadzirwa nesiliconezvaratidzwa kuti zvinobatsira paATH/MDH polyolefin compounds inodzivirira moto iri mutambo. Migumisiro mikuru inosanganisira:

1. Kudzikira kwekunyunguduka: Mapolysiloxanes anotamira pamusoro pekunyunguduka panguva yekugadzirisa, zvichiita firimu rinozora rinoderedza kukweshana nemidziyo uye rinovandudza kufamba kwemvura.

2. Kupararira kwakawedzerwa: Zvimwe zvinowedzerwa kubva kuSilicon zvinokurudzira kupararira kwakafanana kweATH/MDH mupolymer matrix, zvichideredza kuunganidzwa kwezvikamu.

3. Hunhu hwepamusoro hwakavandudzwa:LYSI-401 silicone masterbatchinoderedza kuungana kwemarara uye kupwanyika kwematombo, zvichiita kuti nzvimbo dzakabuda dzive dzakatsetseka dzisina zvikanganiso zvakawanda.

4. Kumhanya kwemutsetse nekukurumidza:Rubatsiro rwekugadzirisa Silicone SC920yakakodzera kuburitsa tambo nekukurumidza. Inogona kudzivirira kusagadzikana kwedhayamita yewaya uye kutsvedza kwescrew, uye kuvandudza kushanda zvakanaka kwekugadzira. Panguva imwe chete yekushandisa simba, huwandu hwekubvisa tambo hwakawedzera ne10%.

5. Hunhu hwemakanika hwakavandudzwa: Nekuwedzera kupararira kwefiller uye kunamira pakati pechiso, silicone masterbatch inovandudza kuramba kupfeka kwecomposite uye mashandiro emakanika, akadai sehunhu hwekukanganisa uye kureba panguva yekudonha.

6. Kubatana kunodzivirira moto uye kudzvinyirira utsi: zvinhu zvinowedzerwa zvesiloxane zvinogona kuwedzera zvishoma mashandiro anodzivirira moto (semuenzaniso, kuwedzera LOI) uye kuderedza kuburitswa kweutsi.

SILIKE ikambani inotungamira mukugadzira zvinhu zvinosanganisa silicone, zvinhu zvinobatsira pakugadzira, uye thermoplastic silicone elastomers munharaunda yeAsia-Pacific.

Yeduzvinhu zvinobatsira pakugadzirisa siliconeAnoshandiswa zvakanyanya mumaindasitiri ethermoplastics netambo kuti agadzirise zvinhu, awedzere kupararira kwemafuta, aderedze kunyunguduka kwemvura, uye ape nzvimbo dzakapfava uye dzinoshanda zvakanaka.

Pakati pazvo, silicone masterbatch LYSI-401 pamwe neSC920 silicone processing aid itsva mhinduro dzakabudirira dzeATH/MDH flame-retardant polyolefin formulations, kunyanya muLSZH neHFFR cable extrusion. Nekubatanidza SILIKE's silicone-based additives uye assists yekugadzira, vagadziri vanogona kuwana kugadzirwa kwakasimba uye mhando yakagadzikana.

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.