Diacetone Acrylamide (DAAM)

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Mugadziri & Mutengesi weDiacetone Acrylamide (DAAM)

Diacetone acrylamide(DAAM) ikemikari inowanikwa muboka re acrylamide derivatives. Inowanzoshandiswa mu polymer chemistry uye inogona kushanda se monomer mukugadzira ma polymer akasiyana-siyana, kunyanya ayo anoshandiswa mukuputira, kunamira, uye composites. Maumbirwo emakemikari eDAAM ane acrylamide group (boka re vinyl rakabatana neboka re carbonyl) uye acetone moiety.

Hunhu hweDAAM hunogona kusiyana zvichienderana nekuumbwa kwayo kwepolymer. Kazhinji, DAAM inoshandiswa mukugadzira mapolymer ane hunhu hunodiwa senge kunamira kuri nani, kuchinjika, uye kuramba zvinhu zvakaita sekupisa nehunyoro.

Chimwe chinhu chakakosha cheDAAM kugona kwayo kuita polymerization yemahara, uko inosangana nemamwe mamonomer (kana kuti pachayo) kugadzira mapolymer. Mapolymer aya anogona kushandiswa mumaindasitiri akasiyana-siyana, kusanganisira sema thickeners, crosslinkers, kana mukugadzira maresins akakosha.

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Ruzivo rweChigadzirwa

Matagi eChigadzirwa

Diacetone AcrylamideMutengesi (DAAM) & fekitori

Diacetone acrylamide(DAAM) chinhu chinoshandiswa zvakasiyana-siyana mu organic chinoshandiswa zvakanyanya mu polymer science, coating technology, uye material science. I synthetic monomer yakawana kutariswa kukuru nekuda kwehunhu hwayo hwemakemikari hwakasiyana, hwakadai se high reactivity, kugona kuumba polymer structures dzakasiyana, uye kugona kwekushandisa zvakasiyana-siyana. DAAM inoita basa rakakosha mukusimudzira hunhu hwe polymers, coating, glues, uye composites.

1. Maumbirwo emakemikari uye hunhu hweDiacetone Acrylamide

Diacetone acrylamide imhando yeacrylamide derivative, apo boka reacrylamide rinotsiviwa neacetone moiety panzvimbo yenitrogen. Fomura yemakemikari yeDAAM ndeiyiC₆H₁₁Kwete₂, uye huremu hwayo hwemamorekuru hunenge129.17 g/mol.

Chimiro cheDAAM chinosanganisira:

An boka reacrylamide(CH₂=CH-C(=O)-NH-), inova ndiyo chinhu chikuru chinoita kuti molekyuli ishande zvakanaka.
A boka rediacetone(C₄H₇O₂), iyo yakabatana nenitrogen yeacrylamide.

Nhamba yeCAS: 2873-97-4
TSCA: 2873-97-4
EINECS :220-713-2
ENCS :2-1024

Zvinhu zvirimo

Diacetone acrylamide inopomesa nyore nyore uye inogadzira ma copolymers ane marudzi akasiyana-siyana ema comonomers
Diacetone acrylamide inopindirana neboka re ketone re adipic acid dihydrazide patembiricha yakajairika.

Kuvapo kweboka rinoshanda reacrylamideinobvumira DAAM kuita polymerize nenzira yakafanana nedzimwemamonomer akagadzirwa neacrylamide, ukuwochimiro chediacetoneinopa chipingamupinyi chinokanganisa mashandiro ayo uye hunhu hwayo hwemuviri. Boka reacetone rinoitawo kuti chinhu ichi chinyunguduke zvakanyanya muzvinhu zvinonyungudutsa zvipenyu.

2. Kugadzirwa kweDiacetone Acrylamide

Kugadzirwa kweDAAM kunosanganisira maitiro maviri:

Kuumbwa kweacrylamide: Danho rekutanga iri rinosanganisira kugadzirisa acrylamide neacetone kana paine acid kana base catalyst. Acetone inosangana nenitrogen atomu ye acrylamide kuti igadzire diacetone derivative.
Kucheneswa: Kana mhinduro yacho yapera, chigadzirwa chacho chinowanzo chenurwa kuburikidza ne distillation kana crystallization techniques kuti chiparadzaniseDAAM monomermuchimiro chayo chakachena.

Maitiro acho anogona kutsanangurwa se:

Acrylamide (CH₂=CH-C(=O)-NH₂)Inoita seyakasanganiswa neacetone (CH₃COCH₃) kuti igadzire diacetone acrylamide (CH₂=CH-C(=O)-NH-CH₂COCH₃).

Kugadzirwa kweDAAM kuri nyore, asi kutonga kwakanyatsojeka kwemamiriro ekuita (semuenzaniso, tembiricha, nguva yekuita, sarudzo yezvinyungudutsa) kunodiwa kuti uwane goho rakakura uye kuchena.

3. Kugadziriswa kweDiacetone Acrylamide

Chinhu chikuru cheDAAM kugona kwayo kuzadzisa zvinangwa zvayopolymerization yemahara radicalBoka reacrylamide muDAAM rinogona kutora chikamu mukuwedzera kwekuita kwepolymerization, zvichibvumira DAAM kubatana nemamwe mamonomer kana iyo pachayo kugadzira macheni marefu epolymer. Izvi zvinoita kuti DAAM ive monomer inobatsira mukugadzira mapolymer ane hunhu hwakasiyana.

Kugadziriswa kweDAAM kunogona kuenderera mberi ne:

Homopolymerization: Iyo DAAM monomer inodyidzana nemamwe maDAAM monomers, ichigadzira polymer ine mayuniti eDAAM chete.
MaCopolymer: DAAM inogonawo kuumbwa pamwe chete nemamwe mamonomer eacrylate, methacrylate, kana vinyl kuti igadzire mamonomer ane hunhu hwakagadzirirwa. Izvi zvinobvumira kuiswa kwemapoka chaiwo anoshanda anopa hunhu hwakakosha kupolymer.

Zvinhu zvinotanga mafree radicals (semuenzaniso,AIBN, BPO) kana kuti chiedza cheUV chinowanzo shandiswa kutanga maitiro e polymerization. Izvi zvinoguma zvaitikaMapolymers akavakirwa paDAAMinogona kuva nehunyanzvi hwakasiyana-siyana zvichienderana nehuwandu hwepolymerization, kuvapo kwe crosslinking agents, uye rudzi rwe co-monomers dzinoshandiswa.

Zvivakwa

Chitarisiko	Upfu hwemapundu machena kusvika kune ero zvishoma
Fomura	C₉H₁₅NO₂
Huremu hweMol.	169.23
Simba rinokwevera pasi chairo (60°C)	0.998
Nzvimbo yekunyunguduka	56°C
Pokufashaira	120°C (8 mm Hg)
Kunyungudika mumvura mune zvinonyungudutsa zve organic	>100g/100g H₂O Miscible
Tg (homo-polymer)	77°C (DSC)
Kusviba (60°C)	17.9 m Pa·s

Kugadziriswa kweCopolymer

M1	M2	r1	r2	Q1	e1	Q2	e2
Styrene	Diacetone acrylamide	1.77 ±0.08	0.49 ±0.06	1.00	-0.80	0.42	-0.42
Methyl methacrylate	Diacetone acrylamide	1.68 ±0.06	0.57 ±0.03	0.74	0.04	0.41	-0.02

4. Kushandiswa kweDiacetone Acrylamide

4.1. Mapendi neMapende

DAAM inoshandiswa zvakanyanya mukugadziramapende ekupendanekuda kwekukwanisa kwayo kugadzira mapolymer ane kunamatira kwakasimba, kuchinjika, uye kuramba zvinhu zvakatikomberedza. Mafirimu epolymer anobuda anoratidza kushanda kuri nani kana tichienzanisa nemachira echinyakare eacrylic kana polyester.

Mamwe maapplication chaiwo anosanganisira:

Kupfeka kwekudzivirira: Mapolymers akavakirwa paDAAM anopa simba rakasimba rekudzivirira kupisa, hunyoro, uye kukweshana, zvichiita kuti akwanise kushandiswa muzvipfeko zvemotokari, zvemaindasitiri, uye zvemugungwa.
Zvinonamira: Kuumbwa kweDAAM polymerization kunogona kutungamira kune manamati anoumba zvisungo zvakasimba zvine nzvimbo dzakasiyana-siyana, dzinosanganisira simbi, mapurasitiki, uye girazi.
Kupfeka kunodzivirira ngura: Mafirimu anochinjika uye anogara kwenguva refu akagadzirwa nemapolymers eDAAM anoshandiswa mumaindasitiri anoda machira ekudzivirira ngura anoshanda zvakanyanya.

4.2. MaPolymer Anonyanya Kunyudza

DAAM inoshandiswa mukugadziramapolima anonyudza zvakanyanya(Mapurisa), izvo zvinhu zvinokwanisa kunwisa mvura yakawanda kana zvimwe zvinwiwa. Zvinhu izvi zvinowanzoshandiswa mumabasa akadai se:

Zvigadzirwa zvehutsanana: MaSAP anobva kuDAAM anowanikwa muzvigadzirwa zvakaita semanapukeni, manapukeni ekuchenesa, uye zvigadzirwa zvekusazvidzora kwemunhu mukuru.
Zvishandiso zvekurima: Mapolymers anonyudza mvura zvakanyanya akagadzirwa kubva kuDAAM anogona kushandiswa mukurima kuti awedzere kuchengetedza mvura muvhu.

4.3. Mashandisirwo Ekurapa Nekurapa Kwemishonga

Nekuda kwekushanda kwayo pamwe chete uye kushanduka-shanduka, DAAM inoongororwawo muminda yezvekurapa uye yezvekurapa. Semuyenzaniso:

Masisitimu ekupa mishonga: Mapolymers akavakirwa paDAAM anogona kugadzirwa kuti ape mishonga nenzira inodzorwa, zvichipa kusunungurwa kwenguva refu kana kunanga matishu chaiwo.
Uinjiniya hwematishu: Hunhu hwemapolymers akavakirwa paDAAM hunochinjika uye hunoenderana nehupenyu hwemuviri hunoita kuti akwanise kushandiswa muzvigadziko zvekugadzira matishu, maronda, nezvimwe zvishandiso zvekurapa.

4.4. Kuumbwa kweHydrogel

Mahydrogel anogadzirwa kubva kuDAAM anoshandiswa mumhando dzakasiyana-siyana nekuda kwesimba rawo rekuchengetedza mvura yakawanda. Mahydrogel aya anogona kushandiswa mu:

Kutarisirwa kwemaronda: Mahydrogel anopa nzvimbo ine hunyoro yekupona kwemaronda, zvichideredza njodzi yehutachiona uye zvinokurumidzisa kupora kwemaronda.
Mafomu ekushongedza: Mahydrogel anogadzirwa kubva kuDAAM anoshandiswa muzvigadzirwa zvekuchengetedza ganda, kusanganisira mamoisturizer uye makirimu ekudzivirira kukwegura, nekuda kwekugona kwawo kunyorovesa ganda.

4.5. Kugadzira zvinhu zveNano uye Composite

DAAM inoshandiswawo mukugadzirirananocompositesuye yepamusorozvinhu zvakagadzirwa ne polymerSemuenzaniso, DAAM inogona kugadzirwa ne nanoparticles kuti igadzire zvinhu zvakasanganiswa zvine hunhu hwakavandudzwa hwemakanika, magetsi, kana kupisa. Zvinhu izvi zvinogona kushandiswa mumaindasitiri akasiyana-siyana, anosanganisira:

Zvigadzirwa zvemagetsi: Polymer nanocomposites dzakagadzirwa kubva kuDAAM dzinogona kushandiswa mumagetsi anochinjika uye zvinhu zvinofambisa mhepo.
Muchadenga: Macomposites anobva kuDAAM anoshandiswa nekuda kwehunhu hwawo hwakareruka uye hwakasimba mukushandiswa kwendege.

4.6. Kudhinda uye Kushandiswa Kwemachira

Muindasitiri yemachira, DAAM inoshandiswa kugadzira machira anogara kwenguva refu uye anochinjika. Semuenzaniso,machira anoshandaDAAM inogona kushandiswa pamachira kuti arambe akasimba mumvura, mavara, uye mwaranzi yeUV. Saizvozvowo, DAAM inogona kushandiswa mukugadzirainki dzekudhinda, uko kugona kwayo kugadzira mafirimu emhando yepamusoro kunobatsira mukuwana kujeka kuri nani kwekudhinda uye kugara kwenguva refu.