Izixhobo zentambo kunye neentambo ze-TPE kunye ne-TPU Uthelekiso lokusebenza kunye nokusetyenziswa

Umsi ophantsi | Ayina-halogen | Into ethintela ilangatye

Ii-elastomers ze-thermoplastic ngoku zithandwa ngabantu abaninzi Ucingo kunye neCable iifektri ngenxa yeenzuzo zazo zokuguquguquka okuphezulu, ukuguquguquka, kunye nokuziva okugudileyo. Njengoko izixhobo zePVC zithintelwe kwiimeko ezininzi, ukuguquguquka kwe-thermoplastic kuye kwakhuthazwa ngamandla.

Kwiminyaka eli-15 edlulileyo, uphuhliso olukhulayo lwe-thermoplastic elastomers ezithintela ilangatye eTshayina. Ii-thermoplastic elastomers ezithintela ilangatye, ngakumbi i-TPE kunye ne-TPU, zisetyenziswe kakhulu kwimigca yedatha yemveliso yabathengi, imigca emitsha eneeshefu zeenqwaba zokutshaja amandla kunye nemigca egqunyiweyo, kunye nemigca ye-high-voltage engaphakathi emotweni.

Nangona kunjalo, kusekho iingxaki ezininzi ezijolise ekufumaneni ulwazi malunga ne-flame retardant ye-thermoplastic elastomers. Umzekelo, abahlobo bahlala bebuza ukuba yintoni umahluko phakathi kwe-TPE kunye ne-TPU. Eli nqaku lithetha ngokufutshane ngeempawu, uthelekiso lokusebenza kunye nokusetyenziswa kwe-thermoplastic elastomers TPE kunye ne-TPU wire and cable materials.

01 Ukusetyenziswa kwe-TPE kwicandelo leentambo kunye neentambo

I-TPE ibhekisa kwi-thermoplastic elastomer ene-SEBS njenge-matrix resin. I-SEBS yi-block copolymer eyenziwe yi-styrene (S)-ethylene (E)/butene (B)-styrene (S).

Iibhondi eziphindwe kabini kwi-SEBS, oko kukuthi, i-SBS, zigcwele yi-hydrogenation, ngoko ke i-SEBS inokumelana okuhle kwemozulu, ukumelana nobushushu, ukumelana nokuguquguquka koxinzelelo kunye neempawu ezintle zoomatshini.

(1) Iimveliso ze-SEBS zisebenza kakuhle kakhulu ekugqumeni umbane, azinabungozi, azinabungozi kwimozulu kwaye ziyaluphala, ziyakwazi ukuguquguquka kakuhle kwaye zinamandla aphezulu, kwaye zinomlinganiselo omkhulu wobushushu. Zizinto ezibalaseleyo zokwenza izigqubuthelo zangaphandle kunye neeteyiphu zokugquma zeengcingo kunye neentambo. Zisetyenziswa kakhulu kwiiterminals eziphathwayo ezikrelekrele kunye nezixhobo zasekhaya nakwezinye iindawo.

Okwangoku, sele kuyinto eqhelekileyo ukutshintsha i-PVC kwicandelo leentambo ezisebenzisa umbane ophantsi (ezifana neentambo ze-headphone, iintambo zetshaja, iintambo ze-USB, iintambo ze-audio/video, iintambo zekhompyutha, njl.njl.).

(2) Ngenxa yokuba iimveliso ze-elektroniki zabathengi zineempawu zohlaziyo olukhawulezayo kunye nobomi benkonzo obufutshane, ngokufika kwexesha lokuphucula ukusetyenziswa, iimveliso ezinxulumene ne-SEBS zinendawo enkulu yophuhliso kweli shishini.

Ngenxa yokwanda kweemfuno zokumelana nomlilo wekhebula kunye nokusebenza kokhuseleko lokusingqongileyo ekhaya nakwamanye amazwe, inqanaba lokusetyenziswa kwabantu liyaqhubeka nokuphucuka, umkhwa weemveliso ze-SEBS ezithintela ilangatye ezisebenza kakuhle zokutshintsha.Le ntambo Izinto ezifana nePVC kunye neCPE ziya zibonakala ngakumbi kwixesha elizayo, kwaye amathuba okusetyenziswa kwixesha elizayo abanzi. Okwangoku, kukho imfuno enkulu yemarike yokuguqulwa kwe-SEBS flame retardant kunye nophuhliso oluphezulu.

Izinto zeTPE ezisebenzayo ezikhethekileyo: Ngokusetyenziswa nokuphuhliswa kwetekhnoloji entsha yezinto zeTPE, izinto zeTPE ezisebenzayo ezizodwa ngoku ziquka iTPE eqhubayo, iTPE echasene ne-static, izinto zokukhusela i-TPE, i-XLTPO edibeneyo ene-radiation, i-TPE enamandla okumelana nomlilo, iTPE ethintela umlilo kakhulu, njl.

02 Ukusetyenziswa kwe-TPU kwicandelo leentambo kunye neentambo

I-TPU thermoplastic polyurethane elastomer, eyi-linear block copolymer eveliswa yi-reaction ye-diisocyanate kunye ne-macromolecular polyol, i-chain extender/crosslinker kunye nenani elincinci lezongezo. Enye ikakhulu yi-polyurethane material, kwaye enye ikakhulu yi-polyether type.

Ngokwesiqhelo yi-polymer yebhloko, kwaye i-PU efunyenwe ngokuphendula i-polyol yetyathanga elide ene-isocyanate isetyenziswa njenge-segment ethambileyo, kwaye i-PU efunyenwe ngokuphendula i-diol yetyathanga elifutshane ene-isocyanate isetyenziswa njenge-segment eqinileyo.

Ukusetyenziswa kwee-elastomers ze-TPU kwiingcingo nakwiintambo ikakhulu kukwimimandla elandelayo:

·Intambo yocingo lwemoto: Intambo yocingo yenkqubo yokutshixa (ABS), intambo ye-odometer, intambo yonxibelelwano lwemoto, intambo yomlilo ethintela ilangatye ukuba lingasebenzi, njl.njl.;

·Iintambo zokuhlola ijografi: iintambo zokuhlola umhlaba weoyile\ulwandle\umhlaba, iintambo zokufumanisa amaza enyikima, njl.njl.;

·Iingcingo ze-elektroniki zabathengi: intambo ye-headphone, (ethintela ilangabi) Intambo yeDatha yokutshaja ifowuni ephathwayo, intambo yesandi, intambo ye-USB, intambo yezixhobo zekhompyutha, njl.njl.;

·Iintambo zamandla nezemizi-mveliso: iintambo zekhompyutha ze-CNC, iintambo zamandla omoya, iintambo zemigodi, iintambo zamandla ombane;

·Intambo yonxibelelwano ngentambo: intambo ye-fiber optic intambo enesigqubuthelo, i-flame retardant efunekayo;

·Iintambo zezixhobo zonyango: intambo ye-electrocardiogram, intambo yokubona ioksijini yegazi, intambo ye-electrode lead, intambo ye-massager.

03 Uthelekiso lokusebenza kwezinto zentambo kunye neentambo zeTPE kunye neTPU

(1) I-TPU inamandla angcono kune-TPE, amandla okutsalwa kunye nesantya sokunwebeka: Amandla okutsalwa kwe-TPU aphindwe kabini ukuya kathathu kunerabha yendalo kunye nerabha yokwenziwa, kwaye i-TPU inokumelana okuhle nokugoba; ukumelana okuhle nokuguguleka, ixabiso lokuguguleka kweTaber yi-0.35-0.5mg, eyona incinci phakathi kweplastiki, ngoko ke inokumelana okuhle nokuqhekeka kolusu.

(2) Imvakalelo ye-TPE kunye ne-TPU kunye nokusebenza kwayo okuthambileyo: I-TPE inokulungelelanisa ubunzima kunye nokuguquguquka ukusuka kuluhlu olubanzi lwe-0 degrees ukuya kwi-99A, ngelixa uluhlu lobunzima be-TPU luyi-60 ~ 95A, kwaye isagcina ukuthamba xa ubunzima bungaphezulu kwe-85A. Olu luphawu olungenalo ezinye ii-elastomers, ngoko ke i-TPU inezakhono zokuxhasa umthwalo ophezulu kunye nesiphumo esihle sokufunxa kunye nokukhupha; imvakalelo yezi zimbini yahlukile kakhulu kuluhlu oluhlukeneyo lobunzima, kwaye iyaziqhelanisa neziganeko ezahlukeneyo ngokweemfuno; I-TPE inokulahleka okukhulu kwe-elastic kuluhlu oluphezulu lobunzima.

(3) I-TPU kunye ne-TPU zePolyether zinokumelana kakuhle namanzi, kodwa i-TPU zepolyester zinokumelana kakuhle namanzi; i-TPU inokumelana ngcono neoyile kune-TPE.

(4) Ukumelana kwe-UV kwe-polyester TPU akunamandla kwaye kulula ukuba tyheli. Ngenxa yokuba indandatho ye-benzene ye-polyurethane hard segment kunye ne-aromatic curing agent zidibene ne-carboxylic acid ester, i-oxidation kunye ne-rearrangement zenzeka, zenze isakhiwo se-quinone kunye namaqela e-chromogenic, ngaloo ndlela kudala i-unsaturated bond kwicandelo le-polymer; phantsi kwesenzo semitha ye-ultraviolet, amandla "e-free radicals" anikezelwa kwimpendulo yokutshintsha kombala, enika amandla aneleyo okutshabalalisa ii-chemical bonds ze-polymers ezininzi, ibangele i-automatic oxidation reaction, kwaye ibangele ukwaluphala kunye nokuwohloka.

Ukusebenza kwe-TPU ye-polyether kubhetele kunokwe-polyester TPU. Ingaphucula amandla okulwa ne-UV emva kokuguqulwa, iqinisekise ukuba ayitshintshi ibe tyheli kwiminyaka eli-1 ukuya kwemi-2. I-TPE elwa ne-UV ngokubanzi ingcono kuneye-TPU, ngoko ke i-TPE enganyangekiyo ngombala ingcono kakhulu kuneye-TPU.

Ngamafutshane, i-polyether TPU ineengenelo zokuxhathisa i-hydrolysis, ukuxhathisa ukungunda, ukuqina okuphezulu kunye nokusebenza kakuhle kobushushu obuphantsi. Ii-TPU zePolyester zineengenelo zokuqina okuphezulu, ukuguquguquka, ukuguguleka, ukuxhathisa i-solvent, ukuxhathisa i-oxidation kunye nokuxhathisa ubushushu obuphezulu.

04 Ukucutshungulwa nokwenziwa kwezinto zentambo kunye neentambo ze-TPE kunye ne-TPU kunye nokuthelekiswa kweendleko

Ukuthelekiswa kokucubungula nokwakha izinto zentambo kunye ne-TPU ze-TPU:

(1) I-TPU kulula kakhulu ukuyifunxa amanzi. Ifuna ukomiswa kwi-100℃*3~4H ngaphambi kokuba icutshungulwe, ngelixa i-TPE yomiswa kwi-70~80℃*2H;

(2) Iimfuneko zeTPU kwii-extruders. Ii-extruders ezinezikrufu esinye ezine-L/D ratio phakathi kwama-20-30 kunye ne-compression ratio phakathi kwama-2-4 zifanelekile kwi-TPU processing; umsantsa phakathi kwee-screws kunye neepayipi zezinto umalunga ne-0.1-0.2mm. Uyilo lwe-screw olufanelekileyo kufuneka luphephe ukungqubana okukhulu kunye nokugqithisa kakhulu, okubangela ukuba izinto zibole kwaye ziqhekeke, ngaloo ndlela kuncitshiswe iipropati ze-mechanical zemveliso.

Isantya sesikrufu sixhomekeke kububanzi besikrufu. Ekubeni iTPU ibuthathaka ekuqhotseni nasekusikeni, isantya esiphezulu kakhulu sinokukhokelela ekuqhekekeni kweTPU. Ukuba iphantsi kakhulu, iya kukhokelela ekuqhekekeni ngenxa yexesha elide lokuhlala. Ngokubanzi, isantya sesikrufu sibekwe kuluhlu lwe-25-60rpm, ngelixa iTPE ifuna i-extruder ekhululekileyo.

(3) Ngaphambi kokuba uqalise i-TPU, qiniseka ukuba isikrufu, intloko yomatshini kunye nesilinda yesikrufu zicociwe ngaphandle kweekona ezifileyo. Onke amalungiselelo agqityiwe, njengokulungiselela imveliso engagqitywanga, ukuprinta kunye nokulungisa iimpazamo, njl. Inyathelo lokugqibela kukuvula imveliso egqityiweyo ngaphambi kokutsala i-hopper ukuze ukhulule izinto kwisikrufu. Kwinqanaba lokuqala lokuqalisa umatshini, zama ukunciphisa ixesha lokuhlala kwerabha kwisikrufu. Emva kokuba izinto zikhutshiwe, umatshini uya kuqaliswa ngokukhawuleza kwimizuzu emi-5. Eli xesha libalulekileyo kufuneka liphathwe kakuhle ekuqaleni. Nika ingqalelo kumyalelo, kwaye uya kuba nesiphumo esiphindwe kabini ngesiqingatha somzamo.

(4) I-TPE ayinangxaki xa ichetywa, kwaye ayizukubola lula ukuba ihlala ixesha elide. Kulula kakhulu ukuyicubungula.

Ukuthelekiswa kweendleko zokucubungula izixhobo ze-TPE kunye ne-TPU zocingo kunye neentambo:

(1) Ixabiso lezinto ze-TPE kunye ne-polyester TPU alahlukanga kangako. I-Polyester TPU iphezulu kancinci, kodwa ixabiso le-polyether TPU liphezulu kakhulu.

(2) Ezi zintathu zine-TPE density ephantsi, zilandelwa yi-polyether TPU density, kunye ne-polyester TPU density enkulu, kunye nexabiso eliphantsi lokusebenzisa i-TPE.

Ngokuthelekisa iipropati ezisisiseko zezinto ze-TPE kunye ne-TPU kunye netekhnoloji yokucubungula izinto, zombini zinezibonelelo kunye neengxaki zazo. Nangona kunjalo, kuhlalutyo lwemixokelelwane yeshishini le-TPU kunye ne-TPE yasekhaya, itshaneli yemarike yezinto eziluhlaza ze-TPE izinzile kwaye ilula, ngelixa uninzi lwezinto eziluhlaza zemveliso ye-TPU zixhomekeke ekungenisweni kwamanye amazwe, kwaye inkqubo yemveliso yasekhaya isemva kakhulu, ngoko ke ukuzinza kwemveliso kunzima ukuqinisekisa. Iimpawu zezinto eziluhlaza zomenzi ngamnye zahlukile kakhulu. Oontanga bethu be-elastomer kufuneka baqonde ngokwaneleyo ukuze kube lula uphuhliso lwesicelo kunye nohlengahlengiso.

Ngokuphonononga ngokunzulu isakhiwo sangaphakathi sezinto, ukujonga utshintsho lokusebenza ngexesha langempela kunye nokuchongwa okuqhubekayo kozinzo, ukuhambelana kunye nokunyamezela kweengcingo phantsi kweendawo zolwandle ezinzima kuyabonakaliswa. Sijonge phambili kwikamva, ukuphuculwa okuqhubekayo kwezinto kunye nesakhiwo semigca yokuhambisa amanzi angaphantsi komhlaba kuya kubeka isiseko esiqinileyo ngakumbi sokumbiwa nokusetyenziswa kwezixhobo zaselwandle.       

IShanghai Lansheng Intambo ingahlangabezana neemfuno zakho ezahlukeneyo zentambo.