Indlela ukukhetha glue kuya polyethylene: amathiphu kanye nokubuyekeza

Polyethylene - yezinto ethandwa kakhulu futhi owaziwa. Hhayi ebiza kakhulu, futhi ngokuvamile, linesizotha. Polyethylene ngokuvamile sisetshenziswa ukwakhiwa zokugcina izithombo zokugcina izithombo for ukwahlukanisa futhi manzi-okuhlola lezinto ezihlukahlukene. Ngesikhathi umsebenzi amakhosi amaningi abhekana nazo isidingo ukunamathisela into. Lapha kulapho izinkinga ziqala. Iqiniso lokuthi polyethylene kuyinto uxhumano kabi. Kodwa sikuvikele Kusengenzeka ngosizo glue. Kungenzeka futhi ukwenza ngaphansi isenzo ukushisa. Indlela ukukhetha ingcina esifanele polyethylene nokuthi kubalulekile ukuba sinake emsebenzini? Izimpendulo zale mibuzo neminye ingatholakala ngezansi.

izakhiwo polyethylene

Le nto emangalisayo anezakhi eziningi ezithakazelisayo. Polyethylene isetshenziselwa ukuvikela umswakama kuyinto enhle kakhulu yisivikelo kagesi kanye uyakwazi iyavuleka yezindlela eziyingozi kakhulu emisebeni. Kuyinto cishe ngokuphelele ukumelana amakhemikhali. Yile mfanelo zokugcina ngezinye izikhathi besithunzi liphenduka abaphumeleli. Uphawu izinto ezinjalo nokuthi ukukhetha polyethylene ingcina?

Ngokuthakazelisayo, kunenze nisondelane - akuyona nje ngamakhemikhali, kodwa ngezinga elithile le nqubo kagesi. Ama-molecule exhunywe izinto bakhangwa nomunye ngenxa umehluko ngezimfanelo zawo. Ngakho kunzima ngempela ukuthola ikhemikhali ithobela kahle kuya polyethylene kwaba, futhi ngemva iphele ngokuqinile kunesithembiso ndawonye izingcezu eziboshiwe. Njengoba ama-molecule okokusebenza ngempela "olinganiselayo", bese unamatsisela kungaba nzima kakhulu nezinye izakhi. Noma kunjalo, umkhakha chemical idale glue ngoba kunenze nisondelane polyethylene. Futhi akukho noyedwa. ingcina okunjalo ubenawo izakhiwo ezithile. Ake sibheke ukuthi kuyini.

Okudingekayo impahla ingcina

Uma unquma unamathele polyethylene noma penofenol (ke uhlobo Foam) ukuze ukhonkolo noma isitini ngaphezulu, le ungqimba yasibamba ingcina kufanele abe eziningana izakhiwo:

• Sizinzile emiphumeleni weathering.
• Ungabhubhisi okokusebenza abraded.
• Have ngezinga eliphezulu hygroscopicity futhi adhesion.
• Yiba amelana lokushisa ongaphakeme.
• Have isinqandakuvunda futhi fungistatisticheskie izinga.
• Gcina izindawo zabo okwesikhathi eside.

Izibuyekezo Umthengi zithi Kubalulekile ukunaka ukuphepha kwemvelo ingcina. Lokhu kubalulekile ikakhulukazi uma kusetshenziswa izinto zokwakha ezitholakala ngokokuhlobisa ingaphakathi. Uma unquma ukusebenzisa polyethylene (penofenol) ku sauna ukuvuselelwa noma izindlu zokugezela, kumelwe banake ezengeziwe ukushisa ingcina ukumelana ukumelana layo hot umhwamuko.

Indlela ukukhetha glue?

Uma ungazi ukuthi hlobo luni ingcina polyethylene ikufanele wena, cela nomthengisi ukubheka umuntu efaka acrylate methyl. Lokhu kwaziswa kunikeza okusheshayo ukuthambisa polyethylene ne eliphezulu kunenze nisondelane. Futhi indlela ingase ihlanganise anhydride chromic, acid ehlukahlukene kanye xylene. Inzuzo elingenakuphikwa lokhu ingcina wukuthi uma usebenzisa ke awudingi ukwelashwa surface ezengeziwe. Kodwa abasebenzisi abathi anakho ukushiyeka. polyethylene okunjalo ingcina kuyinto enobuthi kakhulu. Ngakho-ke, zonke msebenzi arcade kwenziwa ngaphandle. Nokho, noma okungenani kufanele ahlinzeke izinga ukupholisa. Kungcono ukunamathisela "imisebenzi" ezingeni lokushisa +35 c. Akazange afikelwe kwesaba umswakama, kodwa kalula luvutha.

Futhi ezitolo zingatholakala indlela yokuxhuma i-polymers. Basuke ithengiswe ngesimo unama obukhulu. Yayihlanganisa kuphela ngokuvamile enamathiselwe. Ngemva uxhumano yezingxenye ezimbili, kokokunamathisela ozuza isakhiwo oyifunayo. Njengoba uketshezi iyasha ngokushesha, sebenzisa inhlanganisela isidingo ngokushesha. Ngakho musa nje ukuzalela eziningi.

Kodwa Neoprene ingcina ngoba polyethylene kungcono hhayi ukuyisebenzisa. ukwakhiwa okunjalo kuyinto ekahle yokuxhuma zenjoloba noma izingxenye rubberized Neoprene Indwangu, lesikhumba, wazizwa, ngobumba, metal, kunoma iyiphi inhlanganisela. Kodwa polystyrene, polypropylene zandiswa polyethylene, futhi PVC plasticized akukuhle ukusebenzisa. Lutho ngeke.

ingcina Acrylic nge yamathebhu

Uma ungazi ukuthi yini ukunamathisela polyethylene Foam, zama ukusebenzisa ezimbili ingxenye ngesisekelo the methyl efanayo. Kungenjalo, ungazama Easy-Mix PE-PP Brand Weicon. It has kakhulu adhesion izakhiwo. Isetshenziselwa kunenze nisondelane polypropylene, polyvinylchloride nezinye izinto polymeric. Lapho asebenta nalelicembu ingcina kuyodingeka ugijimele. It azigcina impahla yayo endaweni evulekile akuyona imizuzu engaphezu kwemithathu.

Easy-Mix PE-PP iqukethe okufakiwe ehlanganisa ezincane glass ubuhlalu. Lokhu yamathebhu akabashiyi saleli isibopho glue. Ngakho-ke, umphetho kuvela uqine ngokwanele. ingcina okunjalo polyethylene Foam okumele asetshenziswe kuphela kusukela isembozo yokuqala mixer. Ukusebenza naye kuhamba phambili ezingeni lokushisa +22 ° C. ukuqina Okugcwele kuqinisekiswa ngaphambili kuka amahora 5-6.

epoxy ingcina

Yiqiniso, akuyona ingcina kakhulu efanelekayo kunenze nisondelane polyethylene. Kodwa uma ungakwazi ukuthola noma yini enye, ungazama. Vele kufanele kuqala ukulungiselela ebusweni:

1. Emaphethelweni izingxenye eziboshiwe "ukuhlanza" Emery ngendwangu enhle. Khona-ke kahle degrease kubo.
2. Bobabili izingxenye inqubo isixazululo 20% anhydride chromic noma isixazululo 25% potassium dichromate. Uma lezi zinto ayikwazanga ukutholakala, ungasebenzisa isixazululo eziqinile potassium permanganate.
3. Ngemva ebusweni ekwelapheni ezomile.
4. Alulaze kokokunamathisela ngokulandela imiyalelo. Sebenzisa ungqimba ezondile evele kunenze nisondelane. Ngokushesha edokini imininingwane.
5. Yima amahora ambalwa, futhi usuku kangcono - up ukuqedela solidification umphetho.

Umsebenzisi Izibuyekezo abonisa ukuthi resin phenol-formaldehyde has adhesion esihle ukuze polyethylene. Ngakho uma ulandela ngokucophelela imiyalelo, uzophumelela.

Ukunamathela polyethylene: imfundo

Njengoba ubona, ukunamathisela polyethylene, abanye ulwazi olukhethekile awudingi. Inqubo esebenza ngokushesha ajwayelekile:

• ukuhlanza;
• degrease
• owomile;
• ukusakaza Ukwakheka ingcina;
• uphawu izingxenye;
• cindezela;
• ushiye some ngokuphelele.

Ngesikhathi esifanayo, njengoba ubungenza nanoma iyiphi enye ezinobuthi, kudingeka ukuba sikhathazeke khona izibuko zokuzivikela, amagilavu kanye ngomshini.