Hydroxyethylcellulose vs carbomer

Hydroxyethylcellulose (HEC) uye carbomer maviri anowanzo shandiswa mapolima muindasitiri yekuchengeta munhu. Vane maitiro akasiyana emakemikari uye maitiro, izvo zvinoita kuti zvive zvakakodzera kune zvakasiyana-siyana zvekushandisa.

HEC yakasikwa, mvura-inonyungudika polima inotorwa kubva ku cellulose. Inowanzo shandiswa seyakakora, emulsifier, uye stabilizer mune zvakasiyana siyana zvekuchengeta zvigadzirwa senge shampoos, maconditioner, uye kugeza muviri. HEC inozivikanwa nekuenderana kwayo kwepamusoro nezvimwe zvinongedzo uye kugona kwayo kupa yakatsetseka uye yakasviba mameseji kune ekugadzira. Iyo inozivikanwa zvakare nekujeka kwayo kwakanaka uye yakaderera chepfu.

Carbomer, kune rumwe rutivi, ndeyekugadzira, yakakwira molecular huremu polymer iyo inowanzoshandiswa seyakakora mumiriri mune zvakasiyana siyana zvekuchengeta zvigadzirwa senge gels uye lotions. Iyo inoshanda zvakanyanya pakukora uye kudzikamisa magadzirirwo, uye inogona kupa yakakwira dhigirii yekujekesa uye kumiswa kune yakapedzwa chigadzirwa. Carbomer inozivikanwa zvakare nekunaka kwayo viscosity control uye kugona kusimudzira kupararira kwezvigadzirwa.

Imwe yemisiyano mikuru pakati peHEC necarbomer ndeyekunyungudika kwemvura. HEC inonyanya kunyungudika mumvura, nepo carbomer inoda neutralization ine alkaline agent yakadai se triethanolamine kana sodium hydroxide kuti inyatso hydrated uye yakakora. Pamusoro pezvo, HEC inozivikanwa nekuderera kwayo kunzwisiswa kune pH uye tembiricha shanduko, nepo carbomer inogona kukanganiswa nekuchinja kwepH uye tembiricha.

Muchidimbu, HEC uye carbomer marudzi maviri akasiyana emapolymer ane akasiyana zvivakwa uye mashandisiro. HEC ipolymer yakasikwa, inonyungudika mumvura iyo inowanzoshandiswa semukobvu uye emulsifier, ukuwo carbomer inogadzira, yakakwira molecular huremu polima iyo inoshanda zvakanyanya pakukora uye kudzikamisa maumbirwo. Kusarudzwa kwepolymer kunoenderana nezvinodiwa uye zvimiro zvekugadzira.