Crosslinked polyethylene: isicelo kunye neempawu

Polyethylene kuyinto material esetyenziswa-mveliso eyahlukeneyo. Iimveliso ezivela kulo kwakhona isetyenziswa kubomi bemihla ngemihla. polyethylene Common azigcina amandla alo ukuya degrees 130. Nangona kunjalo, kubalulekile rhoqo ukusebenzisa le nto, yaye kwiimeko ezinzima kakhulu kwiqondo eliphezulu kunye noxinzelelo, umzekelo kwinkqubo zokufudumeza kunye namanzi ashushu.

Le mfuno sele kukhokelele ukufuna iindlela ukufumana izinto ezomeleleyo kakhulu. nobuchwepheshe Found kokunika polyethylene crosslinked, nto leyo eye ubunzima enkulu beemolekyuli xa kuthelekiswa nezinto eqhelekileyo, kwaye kuphuculwe iimpawu. Badla ukuqonda yinkqubo eqhagamshelanisa ezo molekyuli ngenxa ukuyilwa cross-ngapandle kokuba lidibane a shirokoyacheistuyu igridi-ntathu.

Kuxhomekeka neziphumo isicelo bokwahlula iikhemikhali kunye crosslinking ngokwasemzimbeni. Kwimeko yokugqibela, umbhobho (polyethylene cross-edityaniswe isetyenziswa ukwenza izinto of data) liyahlonyelwa okufakwe ne-X-reyi engqongqo. Lo bugcisa elinemveliso kakhulu, kwaye umzuzu ungafumana ukuya ku-80 leemitha izinto.

A engxakini indlela kukuba polyethylene crosslinked iye ubukhulu ngokungalinganiyo umbhobho. Xa ngaphakathi ejika ipesenti lisezantsi iimolekyuli ezimbaxa, ethabathela nangaphandle, phezu koko, enyangweni. Ngokufanelekileyo, iimpawu kunye nemveliso ngobuninzi. Ngenxa yoko polyethylene udidi crosslinked C (PEX).

Xa usebenzisa indlela lweekhemikhali apha ukutshintshwa -athom hydrogen kwi molecule kusetyenziswa silane kweziyobisi okhethekileyo. Ngako oko, a silane crosslinked polyethylene. Ekwenziweni kwemibhobho udlule ibhafu ekhethekileyo ezaliswe kweziyobisi. Oku kuvumela ukwenza inkqubo efanayo crosslinking ngayo imiphezulu yangaphakathi langaphandle yeendonga umbhobho ubunzulu. Le iteknoloji yenza kube lula ukufumana umbhobho kunye ipesenti ephezulu processing, yaye umbandela omiselwe PEX-B.

Kukho indlela ukuzilungisa radicals nitrogen polyethylene izinto efunyenwe yakhethwa PEX-D. Nangona kunjalo, lo bugcisa ingasebenzi ngenxa ukusebenza eliphantsi.

Kwakhona ukwenza peroxides cross-ukuhlanganisa. Kulo mzekelo, inkqubo yemveliso iquka ukuxubana le pheroksayidi kunye polyethylene, ngoko ukwimeko otyhidiweyo, phantsi lobushushu eliphezulu wafumana polyethylene crosslinked PEX-A qela.

izinto Le conduit (amaqela B, C) isetyenziselwa unikezelo lwamanzi kunye nokuzifudumeza, Noko ke, kunzima eziliqela ezinxulumene kobulembu kunye neemveliso ductility.

Le yimpumelelo kakhulu zinamajelo ezenziwe iqela polyethylene A, babe namandla eliphezulu ukudinwa, ngothanda ukumelana, uzinzo mbini, bhetyebhetye, unyamezelo ukuba yothuse.

Ukufudumeza imibhobho PEX zisetyenziswa ngokubanzi lobuqu, yoluntu kunye nokwakhiwa mveliso. Ngoncedo lwabo athwale Floor kwiradiyetha lwebhodi yezitshixo kunye nokudala inkqubo kumgangatho ukufudumeza.