Letsatsi la poso:11,Hlakola,2022

Sulfonatedmelamineformaldehyderesine bitsoaresin ea melamine, e tsejoang hape e leresin ea melamine formaldehydekaparesin ea melamine. Ke motsoako oa bohlokoa oa lesale la triazine.Resin ea melaminee na le khanyetso e ntle ea metsi, e hanyetsanang le botsofali, e thibelang lelakabe, ho hanyetsa mocheso, ho hanyetsa lik'hemik'hale le thepa ea ho kenya letsoho, 'me e ka sebelisoa ha ho etsoa metsoako ea ho bopa (lisebelisoa tsa letsatsi le letsatsi le lisebelisoa tsa motlakase), liphanele tse entsoeng ka lehong (plywood, fatše laminate le polasetiki ea laminated. mapolanka)) le polasetiki ea foam, joalo-joalo. resin ea melaminee boetse e sebelisoa haholo joalo ka liphahlo, likhomaretsi tsa patsi, li-ajenti tse kopanyang pente, li-fiber textile finishing agents, li-ajenti tsa matla a ho koloba tsa pampiri le lisebelisoa tse fokotsang metsi a samente.

Resin ea melaminee na le lisebelisoa tse latelang tse kholo:

1. Kopo indastering ea letlalo:

indastering ea matlalo,resin ea melamineke resin e atisang ho sebelisoa pele ho tanning, ho nchafatsa le ho tlatsa resin, eo har'a eona e leng trimethylolresin ea melamineke resin ea amino e sebelisoang haholo. Amino resin e na le mokhoa oa ho fifala o ts'oanang le oa aldehyde tanning: prepolymer e kenella ka har'a letlalo, 'me ha boleng ba pH bo fokotseha, prepolymer e ikamahanya le molek'hule e nang le boholo bo itseng letlalong,' me e sebetsang -NHCH 2 OH le collagen ka molek'hule e fetisoa. Lihlopha tsa amino tse ka har'a ketane ea peptide lia koaheloa ho theha mokhoa o kopanetsoeng oa ho kopanya li-cross-link ho fihlela sepheo sa ho fifala. Ka nako e ts'oanang, resin ea amino e na le phello ea ho tlatsa. Braum, Aloysins le ba bang ba sebelisitse GPS, IR, 1H-NMR, 13C-NMR le mekhoa e meng ea ho lemoha, 'me ba fumana hore resin ena e na le thepa ea ho fifala le ho tlatsa,' me e ka tlatsoa ka bongata pakeng tsa likhoele tsa collagen tsa letlalo ho etsa hore mmele wa letlalo o be monate. Phello.Resin ea melamineSehlahisoa sa tanning se sebelisoa ho nchafatsa letlalo le khanyang la chrome-tanned ho etsa hore letlalo le phethiloeng le be le thollo e ntle, le tletseng masapo, le teteaneng ka ho hlakileng, le phello e ntle e tšoeu le khanya e ntle ea khanya. 'Me e lumellana hantle le lisebelisoa tse ling tsa ho suha matlalo. E sebelisoa hammoho le mahlahana a ho suha meroho, e ka khothaletsa ho kenella le ho monya ha mahlahana a ho fifala ha meroho, 'me e eketsa ho hanyetsa ha letlalo le ho hanyetsa boemo ba leholimo ba letlalo. Haeba e sebelisoa bakeng sa ho nchafatsoa ha suede, phello ea ho phahamisa e ntle.

2. Kopo indastering ea pampiri:

Litšobotsi tsa molao-motheo le ts'ebetso ea ho sebelisoa e le moemeli oa ho matlafatsa metsi le ho thibela metsi. Hobane theresin ea melamine formaldehydee na le methylol, e ka theha sebopeho sa etherified pakeng tsa marako a fiber. Khokahano ena pakeng tsa limolek'hule tse fapaneng e hlahisa ho hanyetsa metsi le ho etsa pampiri ea pampiri. Ho finyella phello ea matla a mongobo, haholo-holo e sebelisoa e le moemeli oa ho matlafatsa metsi le ho thibela metsi ho indasteri ea pampiri. Trimethylol melamine e sebelisoa haholo indastering ea pampiri, empa hobane botsitso ba eona, ho qhibiliha ha metsi le litaba tsa mahala tsa formaldehyde ha li ntle, 'me li na le phello e mpe ho bosoeu le ho tšoarella ha pampiri, melamine e fetotsoeng e sebelisoa haholo hona joale. resin.

3. E sebelisoa e le dispersant ea ceramic le samente:

Resin ea melamine formaldehydesulfonate ke ntho e ntle ea anionic surfactant e nang le ts'ebetso e holimo le lisebelisoa tse ling tsa bohlokoa. Hangata e sebelisoa e le dispersant e sebetsang hantle haholo kapa e fokotsang metsi ka lirafshoa, samente le konkreite lapeng le kantle ho naha. Mokhoa oa eona oa ts'ebetso ke haholo-holo: mofuta ona oa ho fokotsa metsi o na le mesebetsi ea adsorption, dispersion le lubrication, kahoo ho sebetsa ha konkreite ho ka ntlafatsoa ka ho sebelisa metsi a fokolang, e le ho finyella morero oa ho fokotsa metsi. Ka lebaka la ho fokotseha ha karo-karolelano ea ho kopanya metsi, li-pores ka konkreite li fokotsehile, ho etsa hore samente e be e teteaneng le ho eketsa matla, e leng se ka boela sa fokotsa boholo ba samente. Ka lebaka la ho kenngoa ha moemeli oa ho fokotsa metsi, khōlo ea lihlahisoa tsa samente ea hydration e lieha, 'me sebopeho sa marang-rang sa sulfonated se teteaneng, se molemo ho eketseha ha matla a nako e telele a konkreite.

4. E sebelisoa e le sekhomaretsi sa patsi:

Ka indasteri ea mapolanka,skhannoamelamineformaldehyderesinli sebelisoa haholo joalo ka likhomaretsi. Ka lebaka la ts'ebetso ea eona e phahameng ea lik'hemik'hale, ha e kenella ka har'a lihlahisoa tsa lehong, lebelo la ho kopanya le ho thatafatsa le potlakile, 'me le ka thatafalloa ka mocheso kapa la thatafalloa ka mocheso oa kamore ntle le lisebelisoa tse ling tse thata, kahoo li hlahisa phello ea ho kopanya. Ka lebaka la botsitso ba eona bo botle ba mocheso, ho hanyetsa metsi le khanyetso ea lik'hemik'hale, e sebelisoa haholo ka liphanele tse entsoeng ka lehong, lehong, kaho, liphutheloana tsa pampiri le masimo a mang. Sepheo sa tšimo ena ke mokhoa oa ho hlōla ts'ebetso ea ho senya le ho fumanaresin ea melamine formaldehydee nang le maemo a itekanetseng. Tharollo ea hona joale ke ho eketsa joala ea polyvinyl, hobane e ka itšoara ka formaldehyde ho hlahisa polyvinyl acetal, e arolelanoang ka mokhoa o lekanang ka har'a resin, e le ho thibela limolek'hule tse tharo tsa nitrogen heterocyclic ho limolek'hule tsa MF resin ho atamela, ho bapala phello e thata thibela ho petsoha.

5. E sebelisoa e le ntho ea ho qetela ea ho hatisa le ho daea:

Ka indasteri ea masela,skhannoamelamineformaldehyderesin'me lihlahisoa tsa eona ke lisebelisoa tsa bohlokoa tse tala bakeng sa ho lokisetsa masela a khatiso, ho daea le ho qeta. Mokhoa oa eona oa ts'ebetso o lokela ho sebelisoa haholo-holo e le mofetoleli oa holim'a metsi le motsoako oa ho kopanya bakeng sa masela, ka tsela eo e ntlafatsa thepa e khahlanong le ho nyenyefala, e thibelang wrinkle le ho hlatsoa metsi ka masela a k'hothone. Leha ho le joalo, ka lebaka la botsitso bo fokolang ba polokelo, maikutlo a mabe a letsoho le ho monya ha bonolo ha chlorine le lesela le mosehla ka mor'a kopo, lipatlisiso tse ngata li entsoe mabapi le phetoho ea eona. Hona joale, methanol e etherifiedresin ea melaminee sebelisoa, 'me li-modifiers tsa formaldehyde tse kang cyclic vinylidene urea le borax lia eketsoa ho fumana e fetotsoeng.resin ea melamine formaldehydeho qeta moemeli ka ultra-low aldehyde le botsitso bo phahameng. Resin e fetotsoeng e sebelisoa bakeng sa anti-shrinkage le anti-wrinkle ea bleached poplin Ho qeta, ho lahleheloa ke mosehla le chlorine ho ntlafatsoa, ​​'me ho hanyetsa ho hlatsoa ho boetse ho molemo. Ho feta moo, nako ea polokelo ea moemeli oa ho qetela ke 210-365 d, litaba tsa mahala tsa formaldehyde ke 0.3%, 'me litaba tse tiileng li ka bang 40%.