Uphuhliso lwei-resin ye-polyester engagcwaliyoIimveliso zinembali engaphezu kweminyaka engama-70. Kwixesha elifutshane kangaka, iimveliso ze-polyester resin ezingagcwaliyo ziye zaphuhliswa ngokukhawuleza ngokwemveliso kunye nenqanaba lobuchwephesha. Ekubeni iimveliso zangaphambili ze-polyester resin ezingagcwaliyo ziye zaphuhliswa zaba lolunye lwezona ntlobo zinkulu kushishino lwe-thermosetting resin. Ngexesha lophuhliso lwee-polyester resin ezingagcwaliyo, ulwazi lobuchwephesha malunga neepatenti zemveliso, iimagazini zoshishino, iincwadi zobugcisa, njl.njl. zivela enye emva kwenye. Okwangoku, kukho amakhulu eepatenti zokuyila minyaka le, ezinxulumene ne-polyester resin engagcwaliyo. Kuyabonakala ukuba iteknoloji yokuvelisa kunye nokusetyenziswa kwe-polyester resin engagcwaliyo iye yakhula ngakumbi ngophuhliso lwemveliso, kwaye ngokuthe ngcembe yakha inkqubo yayo yobugcisa eyahlukileyo nepheleleyo yemveliso kunye nethiyori yesicelo. Kwinkqubo yophuhliso yangaphambili, ii-polyester resin ezingagcwaliyo zenze igalelo elikhethekileyo ekusetyenzisweni ngokubanzi. Kwixesha elizayo, iya kuphuhliswa iye kwiindawo ezithile zeenjongo ezikhethekileyo, kwaye kwangaxeshanye, iindleko zee-polyester zeenjongo ngokubanzi ziya kuncitshiswa. Ezi zilandelayo zezinye zeentlobo ze-polyester resin ezinomdla nezithembisayo, eziquka: i-resin engaphantsi kwe-shrinkage, i-resin ethintela ilangatye, i-resin eyomeleleyo, i-resin eyomeleleyo ye-styrene, i-resin enganyangekiyo yi-corrosion, i-resin ye-gel coat, i-resin ekhazimlayo. Ii-resin ze-polyester ezinganyisiweyo, ii-resin ezingabizi kakhulu ezineempawu ezikhethekileyo, kunye ne-tree fingers ezisebenza kakuhle ezenziwe ngezinto ezintsha kunye neenkqubo.
1.I-resin yokuncipha okuphantsi
Olu hlobo lwe-resin lusenokuba yinto endala. I-resin ye-polyester engagcwaliyo ihamba nokuncipha okukhulu ngexesha lokunyanga, kwaye izinga lokuncipha komthamo ngokubanzi yi-6-10%. Olu kuncipha lunokonakalisa kakhulu okanye luqhekeze izinto, kungekhona kwinkqubo yokubumba ngoxinzelelo (SMC, BMC). Ukuze koyiswe olu kusilela, ii-resin ze-thermoplastic zihlala zisetyenziswa njengezongezo zokuncipha okuphantsi. Ilungelo lobunikazi kweli candelo lanikwa iDuPont ngo-1934, inombolo yelungelo lobunikazi US 1.945,307. Ilungelo lobunikazi lichaza i-copolymerization ye-dibasic antelopelic acids ngee-vinyl compounds. Ngokucacileyo, ngelo xesha, eli lungelo lobunikazi laba nguvulindlela kwitekhnoloji yokuncipha okuphantsi kwee-polyester resin. Ukususela ngoko, abantu abaninzi baye bazinikela ekufundeni iinkqubo ze-copolymer, ezazithathwa njengee-alloys zeplastiki. Ngo-1966 ii-resin ze-Marco eziphantsi zokuncipha zaqala ukusetyenziswa ekubumbeni nasekuveliseni imboni.
I-Plastics Industry Association kamva yabiza le mveliso ngokuthi “SMC”, oko kuthetha ukuba yi-sheet molding compound, kwaye i-low-shrinkage premix compound yayo “BMC” ithetha i-bulk molding compound. Kwi-SMC sheets, kufuneka ngokubanzi ukuba iindawo ezibunjiweyo ze-resin zibe nokunyamezelana okuhle, ukuguquguquka kunye ne-A-grade gloss, kwaye kufuneka kuphetshwe ukuqhekeka okuncinci kumphezulu, okufuna ukuba i-resin ehambelanayo ibe nesantya esiphantsi sokuncipha. Kakade ke, amalungelo omenzi amaninzi ukususela ngoko aphucule kwaye aphucule obu buchwepheshe, kwaye ukuqonda indlela yokusebenza kwesiphumo sokuncipha okuphantsi kuye kwakhula kancinci kancinci, kwaye ii-arhente ezahlukeneyo zokuncipha okuphantsi okanye izongezo eziphantsi ziye zavela njengoko amaxesha edinga. Izongezo zokuncipha okuphantsi ezisetyenziswa rhoqo yi-polystyrene, i-polymethyl methacrylate kunye nezinye ezifana nazo.
2. I-resin egcina ilangatye
Ngamanye amaxesha izinto ezithintela umlilo zibaluleke kakhulu njengokuhlangula iziyobisi, kwaye izinto ezithintela umlilo zinokuthintela okanye zinciphise ukwenzeka kweentlekele. EYurophu, inani lokufa komlilo liye lehla malunga nama-20% kwiminyaka elishumi edlulileyo ngenxa yokusetyenziswa kwezinto ezithintela umlilo. Ukhuseleko lwezinto ezithintela umlilo ngokwazo lubaluleke kakhulu. Yinkqubo ecothayo nenzima ukumisela uhlobo lwezinto ezisetyenziswa kushishino. Okwangoku, i-European Community iye kwaye iqhuba uvavanyo lobungozi kwizinto ezininzi ezithintela umlilo ezisekelwe kwi-halogen kunye ne-halogen-phosphorus. , uninzi lwazo luya kugqitywa phakathi kowama-2004 nowama-2006. Okwangoku, ilizwe lethu ngokubanzi lisebenzisa ii-diols ezine-chlorine okanye ezine-bromine okanye ii-dibasic acid halogen substitutes njengezinto eziluhlaza ukulungiselela ii-reactive flame resins. Izinto ezithintela umlilo ezithintela umlilo ziya kuvelisa umsi omninzi xa utsha, kwaye zihamba kunye nokuveliswa kwe-hydrogen halide ecaphukisayo kakhulu. Umsi oxineneyo kunye nomsi onobuthi oveliswa ngexesha lenkqubo yokutsha kubangela ingozi enkulu ebantwini.
Ngaphezulu kwama-80% eengozi zomlilo zibangelwa yile nto. Enye ingxaki yokusebenzisa izinto ezithintela umlilo ezisekelwe kwi-bromine okanye kwi-hydrogen kukuba iigesi ezibangela ukubola kunye nongcoliseko lokusingqongileyo ziya kuveliswa xa zitshiswa, nto leyo eya kukhokelela ekonakaleni kwezinto zombane. Ukusetyenziswa kwezinto ezithintela umlilo ezingaphiliyo ezifana ne-alumina emanzi, i-magnesium, i-canopy, i-molybdenum compounds kunye nezinye izongezo ezithintela umlilo zinokuvelisa umsi omncinci kunye ne-flame resins ezithintela umlilo eziphantsi, nangona zinemiphumo ecacileyo yokuthintela umsi. Nangona kunjalo, ukuba ubungakanani be-inorganic flame retardant filler bukhulu kakhulu, ayizukwanda nje kuphela i-viscosity ye-resin, engayi kunceda ekwakheni, kodwa naxa inani elikhulu le-additive flame retardant longezwa kwi-resin, iya kuchaphazela amandla oomatshini kunye neempawu zombane ze-resin emva kokupholisa.
Okwangoku, amalungelo omenzi angaphandle amaninzi axele ngetekhnoloji yokusebenzisa izinto ezithintela umlilo ezisekelwe kwi-phosphorus ukuvelisa ii-resins ezithintela umlilo eziphantsi kunye nezingenamsi kakhulu. Izinto ezithintela umlilo ezisekelwe kwi-phosphorus zinefuthe elikhulu lokuthintela umlilo. I-metaphosphoric acid eveliswa ngexesha lokutsha inokuguqulwa ibe yi-polymer ezinzileyo, yenze umaleko okhuselayo, igubungele umphezulu wento evuthayo, ihlukanise ioksijini, ikhuthaze ukuphelelwa ngamanzi emzimbeni kunye nokufakwa kwe-carbonization kumphezulu we-resin, kwaye yenze ifilimu ekhuselayo ene-carbonized. Ngaloo ndlela ithintela ukutsha kwaye kwangaxeshanye izinto ezithintela umlilo ezisekelwe kwi-phosphorus nazo zingasetyenziswa kunye nezinto ezithintela umlilo ze-halogen, ezinefuthe elicacileyo lokusebenzisana. Kakade ke, ulwalathiso lophando lwexesha elizayo lwe-resins ethintela umlilo kukutsha komsi ophantsi, ubuthi obuphantsi kunye nexabiso eliphantsi. I-resin efanelekileyo ayinamsi, ayinatyhefu, ixabiso eliphantsi, ayichaphazeli i-resin, ineempawu zomzimba ezingokwemvelo, ayidingi ukongeza izinto ezongezelelweyo, kwaye inokuveliswa ngokuthe ngqo kwisityalo semveliso ye-resin.
3. I-resin yokuqinisa
Xa kuthelekiswa neentlobo ze-resin ze-polyester ezingagcwaliyo zokuqala, ukuqina kwe-resin yangoku kuphuculwe kakhulu. Nangona kunjalo, ngophuhliso lweshishini elisezantsi le-resin ye-polyester engagcwaliyo, kubekwe iimfuno ezintsha zokusebenza kwe-resin engagcwaliyo, ngakumbi ngokubhekiselele kukuqina. Ubuthathaka be-resin ezingagcwaliyo emva kokunyanga sele buphantse baba yingxaki ebalulekileyo ethintela uphuhliso lwe-resin ezingagcwaliyo. Nokuba yimveliso eyenziwe ngezandla eyenziwe ngobumba okanye imveliso ebunjiweyo okanye enesilonda, ubude xa buqhekeka buba luphawu olubalulekileyo lokuvavanya umgangatho weemveliso ze-resin.
Okwangoku, abanye abavelisi bamanye amazwe basebenzisa indlela yokongeza i-resin eyomeleleyo ukuphucula ukuqina. Njengokongeza i-polyester eyomeleleyo, irabha ye-styrene-butadiene kunye nerabha ye-styrene-butadiene epheliswe yi-carboxy (suo-), njl.njl., le ndlela ikwindlela yokuqinisa umzimba. Ingasetyenziselwa ukungenisa ii-polymers zebhloko kwikhonkco eliphambili le-polyester eyomeleleyo, njengesakhiwo senethiwekhi esingena ngaphakathi esenziwe yi-resin ye-polyester eyomeleleyo kunye ne-epoxy resin kunye ne-polyurethane resin, ephucula kakhulu amandla okutsalwa kunye namandla empembelelo ye-resin. , le ndlela yokuqinisa ikwindlela yokuqinisa iikhemikhali. Udibaniso lokuqinisa umzimba kunye nokuqinisa iikhemikhali lungasetyenziswa, njengokuxuba i-polyester eyomeleleyo esabela ngakumbi kunye nezinto ezingasebenzi kangako ukuze kufezekiswe ukuguquguquka okufunekayo.
Okwangoku, amaphepha e-SMC asetyenziswa kakhulu kwishishini leemoto ngenxa yobunzima bawo obulula, amandla aphezulu, ukumelana nokugqwala, kunye nokuguquguquka koyilo. Kwiindawo ezibalulekileyo ezifana neepaneli zezithuthi, iingcango zangasemva, kunye neepaneli zangaphandle, kufuneka ukuqina okuhle, njengeepaneli zangaphandle zezithuthi. Abalindi banokugoba ukuya kwinqanaba elilinganiselweyo kwaye babuyele kwimo yabo yokuqala emva kokuchaphazeleka kancinci. Ukwandisa ukuqina kwe-resin kudla ngokulahlekelwa zezinye iipropati ze-resin, ezinje ngokuqina, amandla okugoba, ukumelana nobushushu, kunye nesantya sokuphiliswa ngexesha lokwakhiwa. Ukuphucula ukuqina kwe-resin ngaphandle kokulahlekelwa zezinye iipropati ze-resin kuye kwaba ngumxholo obalulekileyo kuphando nophuhliso lwee-resin ze-polyester ezingagcwaliyo.
4. I-resin eguquguqukayo ye-styrene ephantsi
Kwinkqubo yokucubungula i-resin ye-polyester engagcwaliyo, i-styrene enobuthi eguquguqukayo iya kubangela umonakalo omkhulu kwimpilo yabasebenzi bokwakha. Kwangaxeshanye, i-styrene ikhutshwa emoyeni, nto leyo eya kubangela ungcoliseko olukhulu lomoya. Ngenxa yoko, abasemagunyeni abaninzi banciphisa uxinaniso oluvumelekileyo lwe-styrene emoyeni we-workshop yemveliso. Umzekelo, e-United States, inqanaba layo lokuvezwa elivumelekileyo (inqanaba lokuvezwa elivumelekileyo) yi-50ppm, ngelixa eSwitzerland ixabiso layo le-PEL liyi-25ppm, umxholo ophantsi kangako awulula ukuwufikelela. Ukuxhomekeka kumoya onamandla nako kulinganiselwe. Kwangaxeshanye, umoya onamandla uya kukhokelela ekulahlekelweni kwe-styrene kumphezulu wemveliso kunye nokuguquguquka kwenani elikhulu le-styrene emoyeni. Ke ngoko, ukufumana indlela yokunciphisa ukuguquguquka kwe-styrene, ukusuka kwingcambu, kusafuneka ukugqiba lo msebenzi kwisityalo semveliso ye-resin. Oku kufuna ukuphuhliswa kweeresini ze-styrene volatility eziphantsi (LSE) ezingangcolisi okanye ezingangcolisi kakhulu umoya, okanye iiresini ze-polyester ezingagcwaliyo ezingenazo ii-styrene monomers.
Ukunciphisa umxholo wee-monomers eziguquguqukayo kube ngumxholo ophuhliswe lishishini le-polyester resin elingaxutywanga langaphandle kwiminyaka yakutshanje. Kukho iindlela ezininzi ezisetyenziswayo ngoku: (1) indlela yokongeza izithinteli ze-volatibility ephantsi; (2) ukwenziwa kwee-resin ze-polyester ezingaxutywanga ngaphandle kwee-monomers ze-styrene kusebenzisa i-divinyl, i-vinylmethylbenzene, i-α-methyl Styrene ukuthatha indawo yee-monomers ze-vinyl ezinee-monomers ze-styrene; (3) Ukwenziwa kwee-resin ze-polyester ezingaxutywanga ezinee-monomers ze-styrene ephantsi kukusebenzisa ii-monomers ezingentla kunye nee-monomers ze-styrene kunye, njengokusebenzisa i-diallyl phthalate Ukusetyenziswa kwee-monomers ze-vinyl ezibilayo kakhulu ezifana nee-esters kunye nee-copolymers ze-acrylic ezinee-monomers ze-styrene: (4) Enye indlela yokunciphisa i-volatilization ye-styrene kukungenisa ezinye iiyunithi ezifana ne-dicyclopentadiene kunye ne-derivatives zayo kwi-polyester ezingaxutywanga. I-Resin skeleton, ukufikelela kwi-viscosity ephantsi, kwaye ekugqibeleni kuncitshiswe umxholo we-styrene monomer.
Ekufuneni indlela yokusombulula ingxaki yokuguquguquka kwe-styrene, kuyimfuneko ukuqwalasela ngokupheleleyo ukusetyenziswa kwe-resin kwiindlela zokubumba ezikhoyo ezifana nokutshiza umphezulu, inkqubo yokulamina, inkqubo yokubumba ye-SMC, iindleko zezinto eziluhlaza kwimveliso yemizi-mveliso, kunye nokuhambelana nenkqubo ye-resin. , Ukusebenza kwe-resin, i-viscosity, iipropati zoomatshini ze-resin emva kokubumba, njl. Kwilizwe lam, akukho mthetho ucacileyo wokuthintela ukuguqulwa kwe-styrene. Nangona kunjalo, ngokuphuculwa kwemigangatho yokuphila yabantu kunye nokuphuculwa kolwazi lwabantu ngempilo yabo kunye nokukhuselwa kwendalo, ngumcimbi wexesha ngaphambi kokuba kufuneke imithetho efanelekileyo kwilizwe elingathengiyo njengathi.
5. I-resin enganyangekiyo kukugqwala
Enye yeendlela ezisetyenziswa kakhulu ze-polyester resins ezingagcwaliyo kukumelana kwazo nokugqwala kwiikhemikhali ezifana nezinyibilikisi ze-organic, ii-asidi, ii-bases, kunye neetyuwa. Ngokwendlela yokwaziswa kweengcali zenethiwekhi ye-resin engagcwaliyo, ii-resins zangoku ezingagcwaliyo zahlulwe zibe zezi ndidi zilandelayo: (1) uhlobo lwe-o-benzene; (2) uhlobo lwe-iso-benzene; (3) uhlobo lwe-p-benzene; (4) uhlobo lwe-bisphenol A; (5) uhlobo lwe-vinyl ester; kunye nezinye ezifana nohlobo lwe-xylene, uhlobo lwe-halogen-containing compound, njl. Emva kwamashumi eminyaka yophando oluqhubekayo yizizukulwana ezininzi zezazinzulu, ukugqwala kwe-resin kunye nendlela yokuxhathisa ukugqwala kuye kwafundwa kakuhle. I-resin iguqulwa ngeendlela ezahlukeneyo, ezinje ngokungenisa i-molecule skeleton enzima ukumelana nokugqwala kwi-polyester resin engagcwaliyo, okanye ukusebenzisa i-polyester engagcwaliyo, i-vinyl ester kunye ne-isocyanate ukwenza isakhiwo senethiwekhi esingena ngaphakathi, esibaluleke kakhulu ekuphuculeni ukuxhathisa ukugqwala kwe-resin. Ukuxhathisa ukugqwala kusebenza kakhulu, kwaye i-resin eveliswa yindlela yokuxuba i-acid resin inokufezekisa ukuxhathisa okungcono kokugqwala.
Xa kuthelekiswa neii-resin ze-epoxy,Ixabiso eliphantsi kunye nokucutshungulwa okulula kweeresini zepolyester ezingagcwaliyo kube ziingenelo ezinkulu. Ngokutsho kweengcali ze-resin ezingagcwaliyo, ukumelana nokugqwala kweresini yepolyester engagcwaliyo, ingakumbi ukumelana ne-alkali, kuphantsi kakhulu kunokwe-epoxy resin. Ayinakuthatha indawo ye-epoxy resin. Okwangoku, ukunyuka kwemigangatho yokulwa nokugqwala kudale amathuba kunye nemingeni kwiiresini zepolyester ezingagcwaliyo. Ke ngoko, uphuhliso lweeresini ezikhethekileyo zokulwa nokugqwala lunamathuba abanzi.
Ijeli yengubo idlala indima ebalulekileyo kwizinto ezidityanisiweyo. Ayidlali nje kuphela indima yokuhombisa kumphezulu weemveliso ze-FRP, kodwa ikwadlala indima ekuxhathiseni ukuguguleka, ekuxhathiseni ukwaluphala kunye nasekuxhathiseni ukugqwala ngamakhemikhali. Ngokutsho kweengcali ezivela kwinethiwekhi ye-resin engagcwaliyo, indlela yophuhliso lwe-resin yengubo ye-gel kukuphuhlisa i-resin yengubo ye-gel ene-styrene volatilization ephantsi, ukomisa kakuhle emoyeni kunye nokumelana okunamandla kokugqwala. Kukho imakethi enkulu yee-gel coat ezimelana nobushushu kwii-resin zengubo ye-gel. Ukuba izinto ze-FRP zintywiliselwa emanzini ashushu ixesha elide, ii-blisters ziya kuvela kumphezulu. Kwangaxeshanye, ngenxa yokungena kancinci kancinci kwamanzi kwizinto ezidityanisiweyo, ii-blisters zomphezulu ziya kwanda kancinci kancinci. Ii-blisters aziyi kuchaphazela kuphela ukubonakala kwejeli yengubo kuya kunciphisa kancinci kancinci iimpawu zamandla emveliso.
I-Cook Composites kunye ne-Polymers Co. yaseKansas, e-USA, isebenzisa iindlela ze-epoxy kunye ne-glycidyl ether ezipheliswe yi-epoxy ukwenza i-resin ye-gel coat ene-viscosity ephantsi kunye nokumelana okuhle kwamanzi kunye ne-solvent. Ukongeza, le nkampani ikwasebenzisa i-polyether polyol-modified kunye ne-epoxy-terminated resin A (i-flexible resin) kunye ne-dicyclopentadiene (DCPD)-modified resin B (rigid resin) compound, zombini ezi zinto zine-Emva kokuhlanganiswa, i-resin enokumelana namanzi ayinakukwazi nje kuphela ukumelana namanzi okulungileyo, kodwa ikwanako nokuba namandla kunye nokuqina okuhle. Izinyibilikisi okanye ezinye izinto eziphantsi kweemolekyuli zingena kwinkqubo yezinto ze-FRP ngokusebenzisa umaleko we-gel coat, zibe yi-resin engangeni manzi eneempawu ezibalaseleyo ezibanzi.
7. I-resin ye-polyester enganyangekiyo ephilisa ukukhanya
Iimpawu zokunyanga ukukhanya kwe-polyester resin engagcwaliyo kukuphila ixesha elide ebhodweni kunye nesantya sokunyanga ngokukhawuleza. Ii-polyester resin ezingagcwaliyo zinokuhlangabezana neemfuno zokunciphisa ukuguguleka kwe-styrene ngokukhanya. Ngenxa yokuqhubela phambili kwezixhobo zokukhanyisa kunye nezixhobo zokukhanyisa, isiseko sophuhliso lwee-resin ezinokunyangwa sibekwe. Ii-polyester resin ezahlukeneyo ezingagcwaliyo ezinyangwa yi-UV ziye zaphuhliswa ngempumelelo kwaye zafakwa kwimveliso ngobuninzi. Iimpawu zezinto ezibonakalayo, ukusebenza kwenkqubo kunye nokumelana nokuguguleka komphezulu kuphuculwe, kwaye ukusebenza kakuhle kwemveliso kuphuculwe ngokusebenzisa le nkqubo.
8. I-resin engabizi kakhulu eneempawu ezikhethekileyo
Ezi resin ziquka iiresin ezinefoam kunye neeresin zamanzi. Okwangoku, ukunqongophala kwamandla emithi kunendlela enyukayo. Kukwakho nokunqongophala kwabasebenzi abanezakhono abasebenza kwishishini lokucubungula imithi, kwaye aba basebenzi baya behlawulwa ngakumbi. Ezi meko zidala iimeko zokuba iiplastiki zobunjineli zingene kwimarike yemithi. Iiresin ezinefoam ezingagcwaliyo kunye neeresin eziqulathe amanzi ziya kuphuhliswa njengemithi yokwenziwa kwishishini lefenitshala ngenxa yexabiso lazo eliphantsi kunye neempawu zazo ezinamandla aphezulu. Ukusetyenziswa kuya kucotha ekuqaleni, kwaye emva koko ngokuphuculwa okuqhubekayo kwetekhnoloji yokucubungula, esi sicelo siya kuphuhliswa ngokukhawuleza.
Iiresini zepolyester ezingagcwaliyo zinokufuthwa ukuze kwenziwe iiresini ezinefoam ezinokusetyenziswa njengeephaneli zodonga, izahluli zegumbi lokuhlambela ezenziwe kwangaphambili, nokunye. Ukuqina kunye namandla eplastiki enefoam ene-polyester engagcwaliyo njenge-matrix kungcono kuneye-PS enefoam; kulula ukuyicubungula kune-PVC enefoam; ixabiso liphantsi kuneleplastiki enefoam ye-polyurethane, kwaye ukongezwa kwezinto ezithintela ilangatye kunokuyenza ithintele ilangatye kwaye ilwe nokwaluphala. Nangona itekhnoloji yokusebenzisa i-resin iphuhlisiwe ngokupheleleyo, ukusetyenziswa kwe-polyester engagcwaliyo enefoam kwifenitshala akukhange kuthathelwe ingqalelo ingako. Emva kophando, abanye abavelisi be-resin banomdla omkhulu ekuphuhliseni olu hlobo lutsha lwezinto. Eminye imiba ephambili (ukulunywa kwesikhumba, ulwakhiwo lwe-honeycomb, ubudlelwane bexesha le-gel-foaming, ulawulo lwe-exothermic curve alukasonjululwa ngokupheleleyo ngaphambi kokuveliswa kwezorhwebo. De kufumaneke impendulo, le resin inokusetyenziswa kuphela ngenxa yexabiso layo eliphantsi Kwishishini lefenitshala. Nje ukuba ezi ngxaki zisonjululwe, le resin iya kusetyenziswa kakhulu kwiindawo ezifana nezinto ezithintela ilangatye lefoam endaweni yokusebenzisa nje uqoqosho lwayo.
Iiresini zepolyester ezingagcwaliyo ezinamanzi zinokwahlulwa zibe ziintlobo ezimbini: uhlobo olunyibilikayo emanzini kunye nohlobo lwe-emulsion. Kwasekuqaleni kweminyaka yoo-1960 kwamanye amazwe, bekukho amalungelo obunikazi kunye neengxelo zoncwadi kule ndawo. Iresini equlethe amanzi yenzelwe ukongeza amanzi njengesizalisi se-polyester engagcwaliyo kwi-resin ngaphambi kwejeli ye-resin, kwaye umxholo wamanzi unokuba phezulu ukuya kuma-50%. Iresini enjalo ibizwa ngokuba yi-WEP resin. Iresini ineempawu zexabiso eliphantsi, ubunzima obulula emva kokulungiswa, ukubambezeleka komlilo okuhle kunye nokuncipha okuphantsi. Uphuhliso kunye nophando lwe-resin equlethe amanzi kwilizwe lam lwaqala ngeminyaka yoo-1980, kwaye belulixesha elide. Ngokuphathelele ukusetyenziswa, isetyenzisiwe njengearhente yokubambelela. Iresini yepolyester engagcwaliyo enamanzi luhlobo olutsha lwe-UPR. Ubuchwepheshe kwilebhu buya bukhula ngakumbi, kodwa kukho uphando oluncinci malunga nokusetyenziswa. Iingxaki ekufuneka zisonjululwe ngakumbi kukuzinza kwe-emulsion, ezinye iingxaki kwinkqubo yokuphilisa nokubumba, kunye nengxaki yokuvunywa kwabathengi. Ngokubanzi, i-polyester resin engagcwaliyo eyi-10,000-tons inokuvelisa malunga neetoni ezingama-600 zamanzi amdaka minyaka le. Ukuba ukuncipha okuveliswa kwinkqubo yokuvelisa i-polyester resin engagcwaliyo kusetyenziselwa ukuvelisa i-resin equlethe amanzi, kuya kunciphisa iindleko ze-resin kwaye kusombulule ingxaki yokukhuselwa kwendalo kwimveliso.
Sithengisa ezi mveliso zilandelayo ze-resin: i-resin ye-polyester engagcwaliyo;i-vinyl resini-resin yejazi lejeli; i-resin ye-epoxy.
Sikwavelisai-fiberglass ejikelezayo ngqo,iimathi zefiberglass, i-fiberglass mesh, kwayeukuzulazula okulukiweyo kwefayibha.
Qhagamshelana nathi :
Inombolo yefowuni:+8615823184699
Inombolo yefowuni: +8602367853804
Email:marketing@frp-cqdj.com
Ixesha lokuthumela: Juni-08-2022
