He nui nā hoʻohana a ka Methyl methacrylate (MMA):
Ka hoʻohana nui: Ma ke ʻano he monomer o ke aniani organik (polymethylmethacrylate, PMMA), i hoʻohana ʻia e hana i nā plastics moakaka.
Nā palakiko a me nā uhi ʻē aʻe: Hoʻohana ʻia e hana i nā resins, palakiko, a me nā uhi ʻē aʻe, e hāʻawi ana i nā mea maka koʻikoʻi no kēia mau ʻoihana.
Nā hoʻohana ʻoihana he nui: Ma ke ʻano he lubricant, mea hoʻonui lāʻau a me ka cork, mea hoʻomoʻa ʻōwili motika, mea hoʻopili pepa, mea kōkua paʻi a me ka hoʻoluʻu ʻana i ka lole, mea mālama ʻili a me nā mea hoʻopiha insulation, a pēlā aku, ua hoʻohana nui ʻia ia ma nā ʻoihana he nui.
Mea hana fungicide waena: Ma ke ʻano he mea hana waena o ka fungicide Sclerotium, hoʻohana ʻia ia i ka hana pesticide.
He mea maka kemika koʻikoʻi ka Methyl methacrylate. Hiki i kona mahu a me ka ea ke hana i kahi hui pahū. E ʻoluʻolu e makaʻala i ka palekana i ka wā e hoʻohana ai4. ʻAʻole ia e pāʻani wale i kahi kuleana koʻikoʻi i ka ʻoihana plastik a me nā uhi ʻana, akā he kuleana koʻikoʻi nō hoʻi i nā ʻoihana ʻē aʻe he nui.
Loaʻa i kēlā me kēia o kēia mau ʻano hana kona mau ʻano ponoʻī, a hiki ke koho ʻia nā ala synthetic kūpono e like me nā pono a me nā kūlana kikoʻī.
ʻO nā ʻano hana hoʻomākaukau no ka methyl methacrylate (MMA) e komo pū me kēia mau mea:
Ke ʻano hana Acetone cyanohydrin: E hoʻohana i ka acetone ma ke ʻano he mea maka, e hana mua me ka hydrocyanic acid e hana i ka acetone cyanohydrin, a laila e hoʻomehana me ka sulfuric acid i hoʻopaʻa ʻia a me ka methanol e hana i ka hydrolysis, dehydration a me nā hopena esterification e hoʻomākaukau ai i ka MMA. He ʻano maʻamau kēia ʻano hana no ka hana ʻana i ka MMA. Ua oʻo ka ʻenehana, akā he mea ʻawahia loa ka hydrocyanic acid maka a he paʻakikī ka mālama ʻana i nā ʻōpala ʻekolu.
Ke ʻano hana Isobutylene: Hoʻomake ʻia ʻo Isobutylene i methacrolein me ka ea i ke alo o kahi mea hoʻoulu, a laila hoʻomake ʻia i ka waikawa methacrylic, a ma hope esterified me ka methanol e loaʻa ai ka MMA. Aia kekahi kaʻina hana hoʻomake hoʻokahi-ʻanuʻu e hoʻomake pololei ana e hana i ka waikawa methacrylic a laila esterifies iā ia.
Ke ala propylene: ʻO ka hopena carbonylation o ka propylene, carbon monoxide a me ka methanol e hana i ka 2-methoxyisobutyric acid methyl ester, kahi i hoʻokahe ʻia i MMA a me methanol ma hope o ka hydrolysis.
Nā Waiwai Kemika Methyl methacrylate
Kikowaena hoʻoheheʻe -48 °C (lit.)
Ka paila ʻana 100 °C (lit.)
ka nui o ka paʻa 0.936 g/mL ma 25 °C (lit.)
ka nui o ka mahu 3.5 (vs ea)
kaomi mahu 29 mm Hg (20 °C)
helu kuhikuhi refractive n20/D 1.414(lit.)
FEMA 4002 | METHYL 2-METHYL-2-PROPENOATE
Fp 50 °F
ka mahana mālama. 2-8°C
hiki ke hoʻoheheʻe ʻia 15g/l
ʻano pauka kristal a i ʻole nā kristal
kala Keʻokeʻo a melemele māmā
ʻAla ma 0.10% i loko o ka dipropylene glycol. ʻala hua acrylic
ʻAno ʻala acrylate
Paepae ʻala 0.21ppm
palena pahū 2.1-12.5%(V)
Ka hoʻoheheʻe ʻana i ka wai 15.9 g/L (20 ºC)
Merck 14,5941
Helu JECFA 1834
BRN 605459
Ke Kānāwai Paʻa o Henry 2.46 x 10-4 atm?m3/mol ma 20 °C (kokoke - helu ʻia mai ka hiki ke hoʻoheheʻe ʻia i ka wai a me ke kaomi mahu)
Nā palena o ka hōʻike ʻana NIOSH REL: TWA 100 ppm (410 mg/m3), IDLH 1,000 ppm; OSHA PEL: TWA 100 ppm; ACGIH TLV: TWA 100 ppm me nā waiwai TWA a me STEL i manaʻo ʻia he 50 a me 100 ppm, kēlā me kēia.
ʻO ke kūpaʻa dielectric 2.9(20 ℃)
Paʻa: Kūleʻa
ʻIke Hoʻokaʻaʻike
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