Kev ruaj ntseg ntawm cellulose muaj kev hais ua

Qhov kev nyab xeeb ntawm cellulose yog hais txog lawv lub peev xwm los tswj lawv cov tshuaj thiab lub cev muaj zog nyob rau lub sijhawm, nyob rau hauv ntau yam kev mob ib puag ncig thiab kev ua cov tsis muaj. Nov yog qee yam cuam tshuam uas cuam tshuam rau kev ruaj ntseg ntawm cov neeg muaj kev nyab xeeb ntawm cellulos:

1. Hydrolytic Stability: Cov neeg muaj kev hais ua cellulose muaj kev phom sij, tshwj xeeb tshaj yog nyob rau hauv acidic lossis alkaline. Qhov kev ruaj ntseg ntawm cov cellulose muaj kev hais ua ke nyob ntawm lawv cov qib hloov pauv (DS) thiab qauv tshuaj. Cov neeg ua haujlwm siab dua yog cov neeg muaj kev hais txog kev tiv thaiv hydrolysis ntau ntxiv rau cov DS counterparts qis. Ib qho ntxiv, muaj cov pab pawg tiv thaiv xws li methyl, ethyl, lossis hydroxypropylabyl muaj peev xwm txhim kho cov hydrolytic ruaj khov ntawm cov cellulose neeg muaj kev pab.
2. Qhov sov ruaj khov: cellulose muaj kev hais ua kom pom zoo thermal ruaj khov nyob rau hauv ib txwm ua thiab kev cia khoom. Txawm li cas los xij, kev ntev ntev tuaj yeem ua rau muaj kev mob siab rau kev ua kom muaj kev cuam tshuam, ua rau muaj kev hloov pauv ntawm viscosity, hnyav, thiab lwm yam khoom siv lub cev. Lub thermal stability ntawm cellulose muaj neeg muaj kev pab cuam ntawm yam xws li cov qauv polymer, hnyav, thiab muaj cov neeg sawv cev ruaj khov.
3. Pha ruaj khov: Cov neeg muaj kev hais ua cellulose tau ruaj khov tshaj li ntawm p p p p p p p p p p p p p p p pH thiab 11. Txawm li cas los xij, ua rau lawv txoj kev ruaj khov. Acidic lossis alkaline tej yam mob tuaj yeem ua rau cov hydrolysis lossis kev tsis txaus ntseeg ntawm cov neeg muaj kev pab cuam cellulose, ua rau poob viscosity thiab thickening cov khoom. Cov qauv uas muaj cov kws hais ua cellulose yuav tsum tsim cov qib pH nyob rau hauv ntau yam kev ruaj khov ntawm cov polymer.
4. Oxidative Stability: Cov neeg muaj kev hais ua ke tau raug rau oxidative degree thaum raug cov pa oxygen lossis oxidizing cov neeg sawv cev. Qhov no tuaj yeem tshwm sim thaum ua, cia, lossis raug rau huab cua. Antioxidants lossis stabilizers yuav raug ntxiv rau cellulose ethtic ua kom zoo dua los txhim kho oxident stability thiab tiv thaiv kev ua kom muaj kev ruaj ntseg.
5. Lub teeb ruaj khov: Cov neeg hais daws teeb meem yog feem ntau ruaj khov rau lub teeb kis, tab sis ntev raug rau ultraviolet (UV) hluav taws xob tuaj yeem ua rau kev ua phem thiab tshem tawm. Lub teeb ci stabilizers lossis UV nqus yuav tau koom rau hauv cov qauv uas muaj cov neeg muaj kev pab cuam cellulose los txo cov khoom ruaj khov thiab tswj cov khoom ruaj khov.
6. Compatibility nrog lwm cov khoom xyaw: kev ruaj ntseg ntawm cov neeg muaj kev cuam tshuam ntawm cellulose tuaj yeem cuam tshuam nrog lwm cov khoom xyaw, xws li cov kuab tshuaj, surfactants, salts, thiab ntxiv. Yuav tsum tau ua kom muaj kev sib cav kom ntseeg tau tias cov neeg muaj kev pab muaj nyob ruaj khov thiab tsis muaj kev sib cais zuj zus thaum ua ke nrog lwm cov.

Ua kom muaj kev ruaj ntseg ntawm cov kws hais kom muaj kev nyab xeeb yuav tsum tau xaiv cov ntaub ntawv raw, cov qauv tsim ua kom zoo, thiab kev cia khoom tsim nyog thiab khaws cia. Cov kws ua lag luam feem ntau ua rau kev ntsuas kev ua haujlwm tsis ruaj khov los ntsuas kev ua haujlwm thiab lub neej ntawm cellulose ether-muaj cov khoom nyob rau hauv ntau yam.