Mmepe nkepolyester resin na-adịghị mmangwaahịa nwere akụkọ ihe mere eme nke ihe karịrị afọ 70.N'ime oge dị mkpirikpi dị otú ahụ, ngwaahịa polyester resin na-enweghị ike etolitela ngwa ngwa n'ihe gbasara mmepụta na ọkwa teknụzụ.Ebe ọ bụ na ngwaahịa resin polyester na-enweghị afọ ojuju etolitela ka ọ bụrụ otu n'ime ụdị kachasị ukwuu na ụlọ ọrụ resin thermosetting.N'oge mmepe nke resins polyester unsaturated, ozi teknụzụ na patent ngwaahịa, akwụkwọ akụkọ azụmahịa, akwụkwọ teknụzụ, wdg na-apụta n'otu n'otu.Ka ọ dị ugbu a, enwere ọtụtụ narị akwụkwọ ikike imepụta ihe kwa afọ, nke metụtara resin polyester na-enweghị afọ ojuju.Ọ nwere ike ịhụ na mmepụta na ngwa technology nke unsaturated polyester resin aghọwo ndị ọzọ na-eto eto na mmepe nke mmepụta, na ji nwayọọ nwayọọ kpụrụ ya pụrụ iche na zuru oru usoro nke mmepụta na ngwa tiori.N'ime usoro mmepe gara aga, resins polyester na-adịghị mma enyela onyinye pụrụ iche maka ojiji n'ozuzu ya.N'ọdịnihu, ọ ga-etolite na mpaghara ụfọdụ pụrụ iche, ma n'otu oge ahụ, a ga-ebelata ọnụ ahịa resins n'ozuzu ya.Ihe ndị a bụ ụfọdụ ụdị resin polyester na-adịghị mma ma na-ekwe nkwa, gụnyere: resin obere shrinkage, resin retardant resin, resin siri ike, resin dị ala styrene volatilization, resin na-eguzogide corrosion, jel uwe resin, resin na-agwọ ọrịa resin Unsaturated polyester resins, resins dị ọnụ ala. nwere ihe pụrụ iche, na mkpịsị aka osisi na-arụ ọrụ nke ọma na-ejikọta ya na ihe ọhụrụ na usoro.
1. Low shrinkage resin
Ụdị resin a nwere ike ịbụ isiokwu ochie.A na-esonyere resin polyester na-adịghị mma na nnukwu mbelata n'oge a na-agwọ ya, ọnụ ọgụgụ mbelata olu n'ozuzu bụ 6-10%.Mbelata a nwere ike imebi ma ọ bụ gbawasịa ihe ahụ, ọ bụghị n'usoro ịkpụzi mkpakọ (SMC, BMC).Iji merie adịghị ike a, a na-ejikarị resin thermoplastic eme ihe dị ka mgbakwunye shrinkage dị ala.Enyere DuPont patent na mpaghara a na 1934, akara patent US 1.945,307.Patent na-akọwa copolymerization nke dibasic antelopelic acid nwere ogige vinyl.N'ụzọ doro anya, n'oge ahụ, patent a sụrụ ụzọ teknụzụ dị ala maka resins polyester.Kemgbe ahụ, ọtụtụ ndị etinyela onwe ha n'ịmụ ihe gbasara sistemu copolymer, nke a na-ewere na ọ bụ alloys plastik.N'afọ 1966, e ji resins dị ala nke Marco mee ihe na ịkpụzi na mmepụta mmepụta ihe.
Otu ụlọ ọrụ na-emepụta plastik mechara kpọọ ngwaahịa a “SMC”, nke pụtara ogige ịkpụzi mpempe akwụkwọ, yana ogige premix ya dị ala “BMC” pụtara ogige ịkpụzi nnukwu.Maka mpempe akwụkwọ SMC, a na-achọkarị ka akụkụ resin na-akpụ akpụ nwere ezigbo ntachi obi dị mma, mgbanwe na gloss A-grade, na micro-cracks dị n'elu kwesịrị izere, nke na-achọ ka resin dakọtara nwee obere nkwụsịtụ.N'ezie, ọtụtụ patent kemgbe emeziwanye ma meziwanye nkà na ụzụ a, na nghọta nke usoro nke mmetụta dị ala na-eji nwayọọ nwayọọ na-eto eto, na ihe dị iche iche dị ala ma ọ bụ ihe mgbakwunye dị ala apụtawo dị ka oge chọrọ.Ihe mgbakwunye dị ala nke a na-ejikarị eme ihe bụ polystyrene, polymethyl methacrylate na ihe ndị ọzọ.
2. Ọkụ retardant resin
Mgbe ụfọdụ ihe ndị na-egbochi ire ọkụ dị mkpa dị ka nnapụta ọgwụ, na ihe na-egbochi ire ọkụ nwere ike ịzenarị ma ọ bụ belata ihe omume ọdachi.Na Europe, ọnụ ọgụgụ ndị na-egbu ọkụ ebelatala ihe dị ka 20% n'ime afọ iri gara aga n'ihi iji ihe ọkụ na-eme ihe.Nchekwa nke ihe na-egbochi ire ọkụ n'onwe ya dịkwa oke mkpa.Ọ bụ usoro dị nwayọọ na nke siri ike ịhazi ụdị ihe eji eme ihe na ụlọ ọrụ.Ka ọ dị ugbu a, European Community nwere ma na-eme nyocha ihe egwu n'ọtụtụ ihe mgbanaka ọkụ na halogen dabere na halogen-phosphorus., ọtụtụ n'ime ha ga-agwụ agwụ n'etiti 2004 na 2006. Ugbu a, mba anyị n'ozuzu na-eji chlorine-nwere ma ọ bụ bromine nwere diols ma ọ bụ dibasic acid halogen dochie dị ka akụrụngwa iji kwadebe reactive ire ere retardant resins.Halogen ọkụ retardants ga-emepụta ọtụtụ anwụrụ ọkụ mgbe ọkụ, na-esonyere na ọgbọ nke ukwuu mgbakasị ahụ hydrogen halide.Anwụrụ ọkụ na anwụrụ ọkụ na-egbu egbu a na-emepụta n'oge a na-ere ọkụ na-emerụ ndị mmadụ ahụ.
Ihe karịrị 80% nke ihe mberede ọkụ bụ nke a kpatara.Ihe ọghọm ọzọ dị n'iji bromine ma ọ bụ ihe na-egbochi ire ọkụ na-adabere na hydrogen bụ na a ga-emepụta gas na-emerụ emerụ na nke na-emerụ gburugburu ebe obibi mgbe a na-agba ya ọkụ, nke ga-eduga ná mmebi nke ihe ndị na-emepụta ọkụ eletrik.Ojiji nke inorganic ire ere retardants dị ka hydrated alumina, magnesium, kanopi, molybdenum ogige na ndị ọzọ ire retardant mgbakwunye nwere ike ime ka obere anwụrụ ọkụ na obere toxicity ire retardant resins, ọ bụ ezie na ha nwere doro anya mmetụta na-egbochi anwụrụ ọkụ.Otú ọ dị, ọ bụrụ na ọnụ ọgụgụ nke inorganic ire ọkụ retardant filler dị oke ukwuu, ọ bụghị nanị na viscosity nke resin ga-abawanye, nke na-adịghị akwado iwu ụlọ, kamakwa mgbe a na-agbakwunye nnukwu ọkụ ọkụ na-agbanye ọkụ na resin, ọ ga-emetụta ya. ike n'ibu na ọkụ eletrik nke resin mgbe ọ gwọchara ya.
Ka ọ dị ugbu a, ọtụtụ akwụkwọ ikike mba ofesi akọpụtala nkà na ụzụ nke iji ihe na-egbochi ire ọkụ sitere na phosphorus na-emepụta resins ire ọkụ na-adị ala na obere anwụrụ ọkụ.Ihe nkwụghachi ọkụ nke sitere na phosphorus nwere mmetụta dị ukwuu na-egbochi ire ọkụ.Acid metaphosphoric nke emepụtara n'oge combustion nwere ike ịbụ polymerized n'ime steeti polymer kwụsiri ike, na-akpụ akwa mkpuchi, na-ekpuchi elu nke ihe combustion, kewapụ oxygen, na-akwalite akpịrị ịkpọ nkụ na carbonization nke elu resin, na imepụta ihe nkiri nchebe carbonized.N'ihi ya, a na-egbochi ọkụ ọkụ na n'otu oge ahụ, a pụkwara iji ihe ndị na-eme ka ọkụ na-emepụta ihe na-emepụta ihe na-emepụta ihe na-ejikọta ya na halogen flame retardants, nke nwere mmetụta synergistic doro anya.N'ezie, n'ọdịnihu nnyocha ntụziaka nke ire retardant resin bụ obere anwụrụ ọkụ, obere toxicity na ọnụ ala.Ezigbo resin enweghị anwụrụ ọkụ, obere egbu egbu, ọnụ ala, anaghị emetụta resin, nwere ihe anụ ahụ dị n'ime ya, ọ dịghị mkpa ịgbakwunye ihe ndị ọzọ, ma nwee ike ịmepụta ya ozugbo na resin mmepụta ihe.
3. Resin siri ike
E jiri ya tụnyere ụdị resin polyester na-enweghị saturated nke mbụ, ihe siri ike resin dị ugbu a emeela nke ọma.Otú ọ dị, na mmepe nke ala ụlọ ọrụ nke unsaturated polyester resin, a na-etinyekwu ihe ọhụrụ a chọrọ maka ịrụ ọrụ nke resin unsaturated, karịsịa n'ihe gbasara ike.Ọkpụkpụ nke resin na-enweghị afọ ojuju mgbe a gwọchara ya fọrọ nke nta ka ọ bụrụ nsogbu dị mkpa na-egbochi mmepe nke resin na-enweghị atụ.Ma ọ bụ ngwaahịa aka ejiri nkedo ma ọ bụ ihe akpụzi ma ọ bụ ihe merụrụ ahụ, elongation na nkwụsịtụ na-aghọ ihe dị mkpa maka ịlele ogo ngwaahịa resin.
Ka ọ dị ugbu a, ụfọdụ ndị na-emepụta si mba ofesi na-eji usoro ịgbakwunye resin juru eju iji meziwanye ike.Dị ka ịgbakwunye polyester juputara, styrene-butadiene rọba na carboxy-treminated (suo-) styrene-butadiene roba, wdg, usoro a bụ nke usoro ike anụ ahụ.A pụkwara iji ya mee ihe iji webata ihe mgbochi polymer n'ime agbụ bụ isi nke polyester na-adịghị mma, dị ka nhazi netwọk mmekọrịta nke polyester resin unsaturated na epoxy resin na polyurethane resin, nke na-eme ka ike nkwụsị na mmetụta nke resin dịkwuo mma., usoro a siri ike bụ usoro siri ike nke kemịkal.Enwere ike iji nchikota nke ihe siri ike nke anụ ahụ na ike kemịkal, dị ka ịgwakọta polyester na-emeghachi omume na-adịghị mma na ihe na-adịghị arụ ọrụ iji nweta mgbanwe a chọrọ.
Ka ọ dị ugbu a, ejirila mpempe akwụkwọ SMC mee ihe n'ọtụtụ ebe na ụlọ ọrụ ụgbọ ala n'ihi ịdị arọ ha dị arọ, ike dị elu, nguzogide corrosion, na mgbanwe imewe.Maka akụkụ ndị dị mkpa dị ka ogwe ụgbọ ala, ọnụ ụzọ azụ, na akụkụ dị n'èzí, a chọrọ ezigbo ike siri ike, dị ka ogwe mpụta ụgbọ ala.Ndị nche ahụ nwere ike ịlaghachi azụ ruo oke ma laghachi n'ụdị mbụ ha mgbe obere mmetụta gasịrị.Ịbawanye ike nke resin na-atụfukarị ihe ndị ọzọ nke resin, dị ka isi ike, ike mgbanwe, nkwụsị ọkụ, na ọgwụgwọ ọsọ n'oge a na-ewu.Ịkwalite ike nke resin na-enweghị atụfu ihe ndị ọzọ dị n'ime resin abụrụla isiokwu dị mkpa na nyocha na mmepe nke resin polyester na-adịghị mma.
4.Low styrene resin na-agbanwe agbanwe
N'ime nhazi resin polyester na-adịghị mma, styrene na-egbu egbu na-agbanwe agbanwe ga-emerụ ahụ ike nke ndị ọrụ ụlọ.N'otu oge ahụ, styrene na-ebunye n'ime ikuku, nke ga-emekwa ka mmetọ ikuku dị njọ.Ya mere, ọtụtụ ndị ọchịchị na-amachibido itinye uche nke styrene na ikuku nke ụlọ ọrụ mmepụta ihe.Dịka ọmụmaatụ, na United States, ọkwa ekpughere ya (ọkwa ngosi nke ekwe omume) bụ 50ppm, ebe na Switzerland uru PEL bụ 25ppm, ọdịnaya dị ala adịghị mfe iji nweta.Ịdabere na ikuku ikuku siri ike dịkwa oke.N'otu oge ahụ, ikuku ikuku siri ike ga-edugakwa na nkwụsị nke styrene si n'elu ngwaahịa ahụ na mgbanwe nke nnukwu styrene n'ime ikuku.Ya mere, iji chọta ụzọ iji belata volatilization nke styrene, site na mgbọrọgwụ, ọ ka dị mkpa iji rụchaa ọrụ a na ụlọ ọrụ mmepụta resin.Nke a na-achọ mmepe nke resins dị ala styrene (LSE) nke na-adịghị emetọ ikuku ma ọ bụ na-emetọ ikuku, ma ọ bụ resins polyester na-enweghị ike na-enweghị styrene monomers.
Mbelata ọdịnaya nke monomers na-agbanwe agbanwe bụ isiokwu nke ụlọ ọrụ polyester resin na-enweghị afọ ojuju mepụtara na afọ ndị na-adịbeghị anya.Enwere ọtụtụ ụzọ eji eme ihe ugbu a: (1) usoro nke ịgbakwunye ndị na-egbochi volatility dị ala;(2) nhazi nke unsaturated polyester resins na-enweghị styrene monomers na-eji divinyl, vinylmethylbenzene, α-methyl Styrene dochie vinyl monomers nwere styrene monomers;(3) Nhazi nke unsaturated polyester resins na obere styrene monomers bụ iji monomers dị n'elu na styrene monomers ọnụ, dị ka iji diallyl phthalate Ojiji nke vinyl monomers dị elu dị ka esters na acrylic copolymers na styrene monomers: (4) Ụzọ ọzọ iji belata volatilization nke styrene bụ ịmebata nkeji ndị ọzọ dị ka dicyclopentadiene na ihe ndị na-emepụta ya n'ime skeleton polyesters na-adịghị edozi, iji nweta viscosity dị ala, na n'ikpeazụ belata ọdịnaya nke styrene monomer.
N'ịchọ ụzọ isi dozie nsogbu nke styrene volatilization, ọ dị mkpa iji tụlee nke ọma na ntinye nke resin na ụzọ ịkpụzi dị ugbu a dị ka spraying elu, usoro lamination, usoro ịkpụzi SMC, ọnụ ahịa akụrụngwa maka mmepụta ụlọ ọrụ, yana ndakọrịta na sistemụ resin., Resin reactivity, viscosity, n'ibu Njirimara nke resin mgbe ịkpụzi, wdg Na mba m, ọ dịghị doro anya iwu na-amachibido volatilization nke styrene.Otú ọ dị, site n'ịkwalite ụkpụrụ ndụ ndị mmadụ na mmụba nke ndị mmadụ na-amata ahụike nke onwe ha na nchekwa gburugburu ebe obibi, ọ bụ naanị oge tupu iwu iwu dị mkpa maka mba ndị na-azụ ahịa na-adịghị mma dị ka anyị.
5.Resin na-eguzogide corrosion
Otu n'ime nnukwu ojiji nke resins polyester na-adịghị mma bụ nguzogide corrosion ha na kemịkalụ dị ka ihe mgbaze organic, acids, bases, na salts.Dị ka mmeghe nke ndị ọkachamara netwọk resin unsaturated, a na-ekewa resin na-eguzogide corrosion ugbu a n'ime ụdị ndị a: (1) ụdị o-benzene;(2) ụdị iso-benzene;(3) ụdị p-benzene;(4) bisphenol A ụdị;(5) Ụdị ester vinyl;na ndị ọzọ dị ka xylene ụdị, halogen-nwere compound ụdị, wdg. Mgbe ọtụtụ iri afọ nke na-aga n'ihu nnyocha nke ọtụtụ ọgbọ nke ndị ọkà mmụta sayensị, corrosion nke resin na usoro nke corrosion iguzogide amụwo nke ọma.A na-emezi resin site na ụzọ dị iche iche, dị ka iwebata ọkpụkpụ molekụla nke siri ike iguzogide corrosion n'ime resin polyester na-adịghị edozi, ma ọ bụ na-eji polyester na-adịghị edozi, vinyl ester na isocyanate iji mepụta usoro netwọk na-emekọrịta ihe, nke dị ezigbo mkpa maka imeziwanye nguzogide corrosion. nke resin.Nguzogide corrosion na-arụ ọrụ nke ọma, na resin a na-emepụta site na usoro nke ịgwakọta resin acid nwekwara ike nweta nguzogide corrosion ka mma.
Tụnyereepoxy resins,ọnụ ala dị ala na nhazi dị mfe nke resins polyester na-adịghị mma aghọwo nnukwu uru.Dị ka ndị ọkachamara net resin unsaturated si kwuo, nguzogide corrosion nke resin polyester unsaturated, karịsịa nguzogide alkali, dị nnọọ ala karịa nke resin epoxy.Enweghị ike dochie resin epoxy.Ka ọ dị ugbu a, ịrị elu nke ala ndị na-egbochi corrosion ewepụtala ohere na ihe ịma aka maka resins polyester na-enweghị afọ ojuju.Ya mere, mmepe nke mgbochi corrosion resins pụrụ iche nwere atụmanya sara mbara.
Uwe gel na-arụ ọrụ dị mkpa na ihe mejupụtara.Ọ bụghị naanị na ọ na-arụ ọrụ ịchọ mma n'elu ngwaahịa FRP, mana ọ na-ekerekwa òkè na mgbochi iyi, iguzogide ịka nká na nguzogide corrosion kemịkalụ.Dị ka ndị ọkachamara sitere na netwọk resin unsaturated si kwuo, ntụziaka mmepe nke gel coat resin bụ ịmepụta resin uwe gel na obere styrene volatilization, ezigbo ihicha ikuku na nguzogide corrosion siri ike.Enwere nnukwu ahịa maka mkpuchi gel na-eguzogide okpomọkụ na akwa mkpuchi gel.Ọ bụrụ na etinyere ihe FRP n'ime mmiri ọkụ ruo ogologo oge, ọnya ga-apụta n'elu.N'otu oge ahụ, n'ihi ntinye nke mmiri na-eji nwayọọ nwayọọ na-abanye n'ime ihe mejupụtara, ọnya elu ga-eji nwayọọ nwayọọ gbasaa.Ọnya ahụ agaghị emetụta naanị ọdịdị nke uwe gel ga-eji nwayọọ nwayọọ belata ike ike nke ngwaahịa ahụ.
Cook Composites and Polymers Co. nke Kansas, USA, na-eji ụzọ epoxy na glycidyl ether kwụsịtụrụ iji rụpụta resin uwe gel na viscosity dị ala na ezigbo mmiri na nguzogide ihe mgbaze.Na mgbakwunye, ụlọ ọrụ ahụ na-ejikwa polyether polyol-modified na epoxy-treminated resin A (mgbanwe resin) na dicyclopentadiene (DCPD) -modified resin B (isiike resin) compound, nke abụọ nwere Mgbe compounding, resin na mmiri na-eguzogide enweghị ike. naanị nwere ezigbo nguzogide mmiri, ma nweekwa ike siri ike na ike dị mma.Ihe mgbaze ma ọ bụ ihe ndị ọzọ dị ala na-abanye n'ime sistemu ihe FRP site na akwa mkpuchi gel, na-aghọ resin na-eguzogide mmiri nke nwere ezigbo ihe zuru oke.
7.Light gwọọ unsaturated polyester resin
Njirimara ọgwụgwọ ọkụ nke resin polyester unsaturated bụ ogologo ndụ ite yana ọsọ na-agwọ ngwa ngwa.Resin polyester na-enweghị ike imezu ihe achọrọ maka ịmachi mgbanwe nke styrene site na ọgwụgwọ ọkụ.N'ihi ọganihu nke fotosensitizers na ngwaọrụ ọkụ, a tọrọ ntọala maka mmepe nke resins fotocurable.E mepụtala resin polyester dị iche iche na-agwọtaghị UV nke ọma ma tinye ya n'ọtụtụ buru ibu.A na-eme ka ihe ndị na-emepụta ihe na-emepụta ihe, arụmọrụ usoro na nguzogide elu elu, na mmepụta mmepụta na-emeziwanyekwa site na iji usoro a.
8.Low-eri resin na pụrụ iche Njirimara
Resin ndị dị otú ahụ gụnyere resins foamed na resins mmiri.Ka ọ dị ugbu a, ụkọ ike osisi na-enwe ọganihu dị elu na nso nso a.Enwekwara ụkọ ndị ọrụ nwere nkà na-arụ ọrụ na ụlọ ọrụ nhazi osisi, a na-akwụkwa ndị ọrụ a ụgwọ.Ọnọdụ ndị dị otú ahụ na-emepụta ọnọdụ maka plastik injinịa ịbanye n'ahịa osisi.A ga-emepụta resins foamed na-adịghị mma na mmiri nwere mmiri dị ka osisi ndị na-emepụta ihe na ụlọ ọrụ ngwá ụlọ n'ihi ọnụ ahịa dị ala na ike dị elu.Ngwa ahụ ga-adị ngwa ngwa na mmalite, na mgbe ahụ na-aga n'ihu na-emeziwanye nkà na ụzụ nhazi, ngwa a ga-emepụta ngwa ngwa.
Enwere ike ịfụ ụfụfụ polyester na-adịghị mma iji mee resins nwere ụfụfụ nke a pụrụ iji dị ka mgbidi mgbidi, ndị na-ekewa ụlọ ịsa ahụ nke a na-emebu, na ndị ọzọ.The ike na ike nke plastic foamed na unsaturated polyester resin dị ka matrix dị mma karịa nke PS foamed;ọ dị mfe ịhazi karịa PVC foamed;ọnụ ahịa ahụ dị ala karịa nke plastik polyurethane foamed, na mgbakwunye nke ọkụ na-ere ọkụ nwekwara ike ime ka ọ bụrụ ọkụ ọkụ na mgbochi ịka nká.Ọ bụ ezie na arụpụtala teknụzụ ngwa nke resin n'ụzọ zuru ezu, ntinye nke resin polyester na-enweghị foamed n'ime arịa ụlọ etinyebeghị anya nke ukwuu.Mgbe nyochachara, ụfọdụ ndị na-emepụta resin nwere mmasị dị ukwuu n'ịmepụta ụdị ihe ọhụrụ a.Ụfọdụ isi okwu (skinning, honeycomb Ọdịdị, jel-foaming oge mmekọrịta, exothermic curve akara na-adịghị edozi n'ụzọ zuru ezu tupu azụmahịa mmepụta. Ruo mgbe azịza na-enwetara, a resin nwere ike tinye naanị n'ihi na ya dị ala na-eri Na ngwá ụlọ ọrụ. A na-edozi nsogbu ndị a, a ga-eji resin a mee ihe n'ọtụtụ ebe dị ka ihe na-egbochi ụfụfụ ọkụ kama iji naanị akụ na ụba ya.
Enwere ike ikewa resins polyester na-enweghị mmiri nke nwere mmiri n'ime ụdị abụọ: ụdị mmiri na-edozi mmiri na ụdị emulsion.N'ihe dị ka afọ 1960 ná mba ọzọ, enweela akwụkwọ ikike na akwụkwọ akụkọ na mpaghara a.Resin nwere mmiri bụ ịgbakwunye mmiri dị ka ihe ndochi nke resin polyester na-adịghị edozi na resin tupu resin gel, na mmiri ọdịnaya nwere ike ịdị elu dị ka 50%.A na-akpọ resin dị otú ahụ WEP resin.Resin ahụ nwere njirimara nke ọnụ ala dị ala, ịdị arọ dị arọ mgbe a gwọchara ya, ọkụ ọkụ dị mma na obere shrinkage.Mmepe na nyocha nke resin nwere mmiri na obodo m malitere na 1980s, ma ọ bụ ogologo oge.N'ihe gbasara ngwa, a na-eji ya eme ihe dị ka ihe mgbakwasị ụkwụ.Aqueous unsaturated polyester resin bụ ụdị ọhụrụ nke UPR.Nkà na ụzụ na ụlọ nyocha na-aghọwanye ndị tozuru okè, ma ọ dị ntakịrị nyocha na ngwa ahụ.Nsogbu ndị a ga-edozikwu bụ nkwụsi ike nke emulsion, ụfọdụ nsogbu na usoro ọgwụgwọ na ịkpụzi, na nsogbu nke nkwenye ndị ahịa.N'ozuzu, resin polyester na-enweghị nke 10,000-ton nwere ike ịmịpụta ihe dị ka tọn 600 nke mmiri mkpofu kwa afọ.Ọ bụrụ na a na-eji shrinkage emepụtara na mmepụta nke resin polyester na-adịghị mma na-emepụta resin nke nwere mmiri, ọ ga-ebelata ọnụ ahịa resin ma dozie nsogbu nke mmepụta nchebe gburugburu ebe obibi.
Anyị na-emeso ngwaahịa resin ndị a: resin polyester unsaturated;vinyl resin;jel uwe resin;epoxy resin.
Anyị na-emepụtakwafiberglass kpọmkwem roving,ihe eji eme fiberglass, fiberglass ntupu, nafiberglass kpara akpa.
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Oge nzipu: Jun-08-2022
