Crotonic Acid 107-93-7

1. Taw qhia

Crotonic acid yog unsaturated fatty acid, nws yog ib qho khoom muaj nqis ntxiv uas tau siv dav hauv cov khoom siv polymer, tshuaj thiab lub zog. Nws muaj ob qho tib si cis thiab trans isomers. Txij li cov qauv trans ntawm 2-butenoic acid feem ntau yog ruaj khov, cov qauv trans feem ntau yog siv rau hauv kev tsim khoom thiab kev npaj.

2. Lub luag haujlwm tseem ceeb

Crotonic acid-vinyl acetate copolymer muaj qee qhov zoo dua polyvinyl acetate homopolymer. Cov copolymer ntawm crotonic acid thiab vinyl acetate yog zoo dua li polyvinyl acetate nyob rau hauv cov nqe lus ntawm tshav kub tsis kam, dej tsis kam thiab tsis kam mus rau huab cua ib puag ncig. Tsis tas li ntawd cov copolymer tsim los ntawm crotonic acid thiab vinyl acetate yog homogeneous. Cov yam ntxwv ntawm lub cev thiab tshuaj lom neeg ntawm polyvinyl acetate homopolymer hloov vim qhov kev taw qhia ntawm crotonic acid, thiab cov kev hloov pauv feem ntau nyob ntawm cov ntsiab lus ntawm crotonic acid thiab cov txheeb ze molecular hnyav ntawm copolymer. Feem ntau, raws li cov ntsiab lus ntawm crotonic acid nyob rau hauv lub copolymer nce, lub solubility ntawm copolymer nyob rau hauv ketones thiab polar solvents xws li esters thiab cawv kuj nce, thaum lub thermal hloov pauv kub poob ho. Lub luag haujlwm tseem ceeb ntawm crotonic acid-vinyl acetate copolymer yog raws li nram no.

2.1.As cosmetic

Cov dej-soluble resin yog tau los ntawm neutralizing crotonic acid-vinyl acetate copolymer. Cov resin no muaj ntau yam kev siv, feem ntau hauv cov tshuaj pleev ib ce, thiab tuaj yeem siv rau hauv kev npaj tshuaj zawv plaub hau thiab gels.

Cov polymer tuaj yeem ua tiav lossis ib nrab los ntawm cov kua dej los ntawm kev hloov cov pH, thiab nws tuaj yeem muaj crotonic acid-vinyl acetate copolymer. Nrog rau ib qho kev faib ua feem ntawm pob kws hmoov txhuv nplej siab, crotonic acid - vinyl acetate copolymer, potassium hydroxide, hydrogenated castor roj, methyl salicylate, roj tsw qab, dej sib tov, thiab tom qab ntawd siv citric acid los kho pH rau 6.5 tuaj yeem npaj cov neeg sawv cev nruab nrab, yog tias cov pob kws hmoov txhuv nplej siab yog hloov los ntawm hydroxyethyl cellulose tuaj yeem npaj ua npuas ncauj-hom nruab nrab styling tus neeg saib xyuas, yog tias cov hmoov txhuv nplej siab ntau ntxiv tuaj yeem npaj tau tus neeg sawv cev sensual styling; nyob rau hauv cov ntaub ntawv ntawm hydroxyethyl cellulose Nyob rau hauv cov ntaub ntawv ntawm hydroxyethyl cellulose, tus nqi ntawm copolymer yog txo thiab cov pH yog hloov mus rau 6.3, ces cov tshuaj tsuag gel yuav ua tau. Cov kws tshawb fawb tseem pom tias qee qhov kev faib ua feem ntawm acrylic acid copolymer, crotonic acid-vinyl acetate copolymer, aminomethyl propanol, hydrogenated castor roj, methyl salicylate, roj tsw qab, dej tov ntawm pH 6.6, tuaj yeem npaj cov roj raws li tus neeg sawv cev styling. Yog hais tias ib qho piv txwv ntawm acrylic acid homogeneous polymer, crotonic acid-vinyl acetate copolymer, hydrogenated methyl propanol, cetyl cawv / octadecanol (1: 1), sodium hexadecane / octadecane sulfate, dodecanol oxidized los ntawm ethylene oxide, petroleum jelly, aromatic roj, thiab dej sib tov, kho tonic tuaj yeem npaj ntawm pH 6.5. Cov khoom siv tshuaj pleev ib ce no tsis ua kom lub nra ntawm cov plaub hau.

Lwm cov gel yog tsim los ntawm kev sib xyaw ib feem pua ​​​​ntawm crotonic acid-vinyl acetate copolymer, 2-amino-2-methyl-1, 3-propanediol, thiab ethanol rau hauv ib qho kev daws thiab tom qab ntawd muab tso rau. nws mus rau hauv ib lub thawv tshuaj tsuag ua ke nrog ib tug npaum li cas ntawm liquefied spray gas trifluoro-monochloromethane thiab difluorodichloromethane. Cov gel muab cov yeeb yaj kiab uas tsis yog nplaum, thiab nws tsis tsim cov hmoov thiab muab cov plaub hau ci zoo nkauj. Lub crotonic acid-vinyl acetate copolymer siv nyob rau hauv ob qho tib si khoom yuav tsum kom cov copolymer yog homogeneous thiab hais tias cov ntsiab lus ntawm crotonic acid structural units nyob rau hauv lub macromolecular saw ntawm cov copolymer tsis txawv los ntawm ntau tshaj ± 2.5 feem pua ​​ntawm cov ntsiab lus theoretical. Tsuas yog cov copolymers no tuaj yeem ua tau raws li qhov yuav tsum tau ua, ua kom lub ntsej muag ci ntawm cov plaub hau, thiab yooj yim txav cov tshuaj no los ntawm kev sib txuas. Yog tias cov copolymer ua tsis tau raws li qhov yuav tsum tau ua, nws yog qhov nyuaj rau ua tiav qhov xav tau zoo ntawm cov yeeb yaj kiab resin khaws cia hauv cov plaub hau tom qab siv. Hauv particular, cov plaub hau tsis ci txaus thiab nws kuj yog ib qho nyuaj rau tshem tawm cov resin films los ntawm combing.

2.2. Kev lag luam kws tshuaj

Vim yog cov dej solubility ntawm crotonic acid-vinyl acetate copolymer resin nyob rau hauv tej yam kev mob, nws yuav siv tau nyob rau hauv ntau yam tshuaj thiab kev noj qab haus huv cov teb, xws li suture coatings, ntsiav tshuaj adhesives thiab capsule coatings rau tshuaj, thiab lwm yam. Tsis tas li ntawd, nws muaj peev xwm. siv los ua anticoagulant hauv cov txheej txheem phais plawv.

2.3. Adhesives

Vinyl acetate-crotonic acid copolymer yog siv los ua cov nplaum kub yaj hauv cov neeg ua haujlwm khi. Cov copolymer no kuj tseem siv los ua cov txheej txheem rau phab ntsa thiab ua cov ntawv khi rau cov ntawv thiab laminate, nrog rau cov kua roj vanish.

Tsis ntev los no US patent qhia txog kev siv vinyl acetate-crotonic acid copolymer rau cov nplaum nplaum. Formulation piv txwv: 25 feem pua ​​​​ntawm vinyl acetate-crotonic acid copolymer soluble nyob rau hauv alkali, 62.3 feem pua ​​dej, 0.2 feem pua ​​mineral oil-based defoamer, 0.5 feem pua ​​organic alkali, {{1{{ 12}}}}.12 feem pua ​​mildew inhibitor, 0.30 feem pua ​​opacifier, 0.1 feem pua ​​ci xeb inhibitor, 6.0 feem pua ​​propylene glycol thiab 1.4 feem pua ​​cellulose thickener, thiab lwm yam. Sib tov cov resin ntawm qhov kub thiab txias ntawm tsis pub tsawg tshaj 48.8 degree thiab siab stirring tus nqi Cov resin yog yaj ntawm qhov kub tsis tsawg tshaj 48.8 degree thiab siab stirring tus nqi.

Lwm tus kws tshawb fawb tau yaj ib feem pua ​​​​ntawm vinyl acetate-crotonic acid copolymer, thickener, thiab methanol sib tov tag, thiab tom qab ntawd ntxiv cov tshuaj aqueous ammonium dichromate tuaj yeem npaj cov roj hmab hom siab-rhiab nplaum, uas tiv taus cua sov ntawm ze li 100 degree; Ntxiv cov tshuaj chromium oxide, qhov kev tiv thaiv tshav kub tshaj 130 degree; Ntxiv rosin acid tov, ces nws kuj mus rau tshav kub yuav poob mus rau ze li ntawm 50 degree. Tus kws tshawb fawb tseem tuaj yeem pom tias thaum ntxiv rau Cov nplaum no muaj lub neej txee ntau tshaj peb xyoos ntawm chav tsev kub thiab yog li tshwj xeeb tshaj yog haum rau cov nplaum txheej ntawm cov menyuam ntxhua khaub ncaws, uas yog siv los tshem tawm cov av adhering rau cov ntaub pua plag.

2.4. Txheej txheej

Polyolefin resins uas muaj polyolefin thermal resins thiab polyolefins hloov nrog unsaturated carboxylic acids yog siv rau primer-dawb thiab roj-dawb coatings rau ntawm qhov chaw ntawm molded automotive qhov chaw thiab hluav taws xob qhov chaw. Ntawm lawv, unsaturated carboxylic acid tuaj yeem siv rau crotonic acid. Cov txheej zoo li no muaj ntau qhov sib txuas ntawm cov polar bonds thiab muaj qhov kub-muag adhesion rau ntau yam resins thiab hlau. Qhov sib ntxiv ntawm kwv yees li 1 feem pua ​​​​ntawm crotonic acid rau bureau vinyl acetate coatings tuaj yeem ua rau kom cov adhesion rau lub substrate. Thaum crotonic acid yog siv los ua ib qho kev hloov kho rau cov roj qhuav, nws tuaj yeem txhim kho gloss ntawm cov txheej txheej saum npoo.

3. Cov ntawv thov

Crotonic acid muaj ntau yam kev siv. Nws tuaj yeem siv los ua ib qho nruab nrab los ua ke rau lwm cov tshuaj intermediates, thiab tseem tuaj yeem siv los npaj ntau yam resins, fungicides, tshuaj tua kab thiab plasticizers. Ntawm lawv, qhov tseem ceeb tshaj plaws yog siv los ua raw khoom rau kev npaj crotonic acid-vinyl acetate copolymer.

4. Flow Chart

5. Tus Qauv Zoo

Raws li Enterprise Standard

6.Txoj kev tsom xam

Nws muaj nyob ntawm koj qhov kev thov.

7.Reference Chromatogram

8. Kev ruaj ntseg thiab kev nyab xeeb

Kev ruaj ntseg:
Nyob ruaj khov nyob rau hauv cov xwm txheej zoo (chav kub). Cov Ntaub Ntawv Kev ruaj ntseg muaj nyob rau ntawm koj qhov kev thov.
Kev nyab xeeb:
Raws li GARS (Feem ntau Pom Zoo Raws Li Kev Nyab Xeeb) Daim Ntawv Ceeb Toom ntawm Teb Chaws Asmeskas, nws muaj kev nyab xeeb rau tib neeg siv.

9. Cov neeg siv lus pom

10.Peb Daim Ntawv Pov Thawj

11.Peb cov neeg muas zaub

12. Exhibitions

Cim npe nrov: Crotonic Acid 107-93-7, manufacturers, lwm tus neeg, Hoobkas, lag luam wholesale, yuav, nqe, zoo tshaj plaws, tej, kev muag khoom