Polyisobutylene (PIB)bụ ihe na-enweghị agba, enweghị ụtọ, nke na-anaghị egbu egbu ma ọ bụ nke na-adịghị ike, iguzogide okpomọkụ, iguzogide oxygen, iguzogide ozone, iguzogide ihu igwe, iguzogide ultraviolet, iguzogide acid na alkali na kemịkalụ ndị ọzọ dị mma. Polyisobutylene bụ isobutylene homopolymer na-enweghị agba, enweghị isi, na-anaghị egbu egbu. N'ihi ụzọ nkwadebe dị iche iche na ọnọdụ teknụzụ, ọnụọgụ polyisobutylene nke molekul dị iche iche n'ọtụtụ ebe. Ọtụtụ n'ime ibu molekul nke ngwaahịa a ruru ihe karịrị 10,000 ruo 200,000 ga-agbanwe site na mmiri mmiri dị oke arọ gaa na ọkara siri ike, wee gbanwee gaa na elastomer dị ka roba. Polyisobutylene na-eguzogide acid, alkali, nnu, mmiri, ozone na ịka nká, ma nwee oke ikuku na mkpuchi eletriki dị mma.
Njirimara kemịkalụ:Mmiri mmiri viscous na-enweghị agba ruo na odo odo dị nro ma ọ bụ roba na-agbanwe agbanwe semisolid (oke ibu molekul dị nro bụ gelatin dị nro, oke ibu molekul dị elu bụ ductile ma na-agbanwe agbanwe). Isi molekul nkezi bụ 200,000 ~ 87 nde. A na-agbaze na benzene na diisobutyl Chemicalbook, enwere ike iji polyvinyl acetate, wax, wdg miscive ya, enweghị ike ịgbaze na mmiri, mmanya na ihe mgbaze ndị ọzọ dị na polar. Ọ nwere ike ime ka shuga chịngọm nwee nro dị mma na obere okpomọkụ, ma nwee ụfọdụ plasticity na oke okpomọkụ iji mejupụta adịghị ike nke polyvinyl acetate mgbe oyi, ihu igwe na-ekpo ọkụ na oke nro mgbe ọ ruru okpomọkụ ọnụ.
Ngwa:A maara PIB maka njirimara mkpuchi na nrapado ya dị mma, nke a na-ejikarị eme ihe na nrapado, ihe mkpuchi, na ihe mkpuchi. Njirimara PIB dị ka rọba na-eme ka ọ bụrụ nhọrọ magburu onwe ya maka itinye ihe mkpuchi na njikọ, ebe ọ na-enyere aka inye njikọ siri ike na nke siri ike n'ọtụtụ ntọala. Na mgbakwunye na ojiji ya bara uru, a na-ejikarị PIB eme ihe na ihe ịchọ mma na ihe nlekọta onwe onye n'ihi na ọ nwere ezigbo ihe mgbaze. A na-ejikọta ihe ahụ na ihe ndị ọzọ iji mepụta ngwaahịa nwere udidi na mmetụta pụrụ iche.
PIB nwekwara ọtụtụ ihe eji eme ihe n'ụlọ ọrụ nri. A na-ejikarị ihe a eme ihe dị ka ihe na-eme ka ihe sie ike, ihe na-eme ka ihe sie ike, na ihe na-eme ka ihe sie ike n'ime nri ndị a haziri ahazi. PIB nwekwara ike inye aka melite udidi na ịdị n'otu nke ngwaahịa dịka ice cream, chịngọm, na ihe e ji eme achịcha. Ọdịdị PIB dị iche iche na-eme ka ọ bụrụ ihe dị mkpa maka ndị na-emepụta nri.
A na-ejikwa PIB eme ihe nke ukwuu n'ụlọ ọgwụ. Njirimara ya na-adịghị egbu egbu na-eme ka ọ dị mma maka ojiji na ọgwụ. A na-ejikarị ihe a eme ihe dị ka ihe na-eme ka ọ kwụsie ike na ọgwụ mgbochi, yana ihe mejupụtara ọtụtụ ọgwụ. Ọdịdị nke PIB na-eme ka ọ rapara n'akpụkpọ ahụ, na-eme ka ọ baa uru n'ime mmepụta nke ihe mmado ahụike.
Àgwà:Polyisobutylene nwere ihe ndị dị na kemịkalụ nke ngwakọta hydrocarbon juru eju, otu methyl nke dị n'akụkụ ya bụkwa nkesa siri ike, nke bụ polima pụrụ iche. Ọnọdụ nchịkọta na ihe ndị dị na polyisobutylene na-adabere na ibu molekul ya na nkesa ibu molekul. Mgbe viscosity nkezi ibu molekul dị n'etiti 70000 ~ 90000, polyisobutylene na-agbanwe site na mmiri mmiri na-agbanwe agbanwe gaa na ihe siri ike na-agbanwe agbanwe. N'ozuzu, dịka nha ibu molekul nke polyisobutylene si dị, a na-ekewa ya n'ime usoro ndị a: obere ibu molekul polyisobutylene (ọnụọgụ nkezi ibu molekul = 200-10000); Oke ibu molekul polyisobutylene (ọnụọgụ nkezi ibu molekul = 20000-45,000); Oke ibu molekul polyisobutylene (ọnụọgụ nkezi ibu molekul = 75,000-600,000); Oke ibu molekul polyisobutylene (ọnụọgụ nkezi ibu molekul karịrị 760000).
1. Nkwụsị ikuku
Otu n'ime ihe ndị pụrụ iche nke polyisobutylene bụ oke ikuku ya siri ike. N'ihi ọnụnọ nke otu methyl abụọ a gbanwere, mmegharị nke molekul yinye na-adị nwayọ ma olu efu dịkwa obere. Nke a na-eme ka obere ihe mgbasa na gas na-abanye.
2. Mmiri na-agbaze
A na-agbaze Polyisobutylene na hydrocarbon aliphatic, hydrocarbon aromatic, petrol, naphthene, mmanụ mineral, hydrocarbon a chlorine na carbon monosulfide. A na-agbaze nke ọma na mmanya na cheese dị elu, ma ọ bụ na-aza na alcohols, ethers, monomers, ketones na ihe mgbaze ndị ọzọ na mmanụ anụmanụ na akwụkwọ nri, ọkwa nke ọzịza na-abawanye ka ogologo nke ihe mgbaze carbon na-agbaze na-abawanye; A naghị agbaze na obere mmanya (dịka methanol, ethanol, isopropyl alcohol, ethylene glycol na coethylene glycol), ketones (dịka acetone, methyl ethyl ketone) na glacial acetic acid.
3. Mgbochi kemịkalụ
Polyisobutylene na-eguzogide acid na alkali. Dịka ammonia, hydrochloric acid, 60% hydrofluoric acid, lead acetate mmiri mmiri, 85% phosphoric acid, 40% sodium hydroxide, mmiri nnu juru eju, 800} sulfuric acid, 38% sulfuric acid + 14% nitric acid mbuze, Agbanyeghị, ọ nweghị ike iguzogide mbuze nke oxidants siri ike, oxidants na-adịghị ike (dịka 60% potassium permanganate), ụfọdụ acid organic concentrated (dịka 373K acetic acid) na halogens (fluorine, chlorine, desert).
Nkwakọ ngwaahịa: 180KG drum
Nchekwa: Debe n'ebe dị jụụ, ikuku na-abata, na ebe kpọrọ nkụ, ebe anwụ na-echebe ya mgbe a na-ebuga ya.
Na mmechi, PIB bụ ihe bara uru nke nwere ọtụtụ ojiji n'ọtụtụ ụlọ ọrụ dị iche iche. Njirimara mkpuchi na nrapado ya dị mma, yana ike ịgbaze na ọtụtụ ihe dị iche iche, na-eme ka ọ dị mma maka ojiji n'ime ụlọ ọrụ ịchọ mma, nlekọta onwe onye, nri, na ụlọ ọrụ ahụike. Dịka onye na-eweta PIB kachasị elu, anyị raara onwe anyị nye inye ndị ahịa anyị ngwaahịa na ọrụ kachasị mma iji gboo mkpa ụlọ ọrụ ha.
Oge ozi: Jun-19-2023