Mataira anonamira akakosha mukuvaka nekugadzirisa, achipa chisungo pakati pemataira uye substrate. Aya anonamira anofanirwa kuratidza huwandu hwezvivakwa, zvinosanganisira kushanda, kuchengetedza mvura, uye kusimba kwekunamatira. Chimwe chezvinhu zvakakosha zvinosimudzira izvi zvivakwa ndeye cellulose derivatives. Cellulose, yakasikwa polymer inowanikwa mumasero madziro emiti, inogadziriswa kemikari kuti ibudise zvinobva semethyl cellulose (MC) uye hydroxypropyl methylcellulose (HPMC), iyo inoshandiswa zvakanyanya mukunamira mataira.
Zvimiro zveCellulose Derivatives
Cellulose derivatives inoshandiswa mumatairi adhesives inonyanya kunyungudika nemvura mapolymers anoratidza akasiyana zvivakwa:
Kuchengetwa Kwemvura: Vanogona kubata mvura yakawanda, iyo yakakosha pakurapa kwekunamatira.
Thickening Agent: Ivo vanowedzera viscosity yemusanganiswa wekunamatira, kuve nechokwadi chekushandisa kwakakodzera uye kuderedza sagging.
Kugadzira Firimu: Vanoumba firimu rakatetepa pakuomeswa, izvo zvinopa kusimba kwechisungo uye kuchinjika kwekunamira.
Rheology Kugadziriswa: Ivo vanogadzirisa kuyerera hunhu hweanonamira, kuvandudza kushanda kwayo uye nyore kushandisa.
Mabasa eCellulose muTile Adhesive
1. Kuchengeta Mvura
Rimwe remabasa ekutanga ezvinobva mu cellulose mune adhesive mataira kuchengetedza mvura. Munguva yekurapa simende-based adhesives, kuvepo kwemvura yakakwana kwakakosha kune hydration reaction. Cellulose derivatives inotora uye inochengeta mvura, zvishoma nezvishoma ichiiburitsa kuti ive nechokwadi chekuti hydration yakakwana. Izvi zvinodzorwa kusunungurwa kwemvura kunovandudza simba uye kusimba kwechisungo chekunamatira.
Kuvandudzwa Kurapa: Nekuchengetedza mvura, zvigadzirwa zve cellulose zvinodzivirira kuoma kusati kwasvika, izvo zvinogona kutungamirira kukurapa kusina kukwana uye zvisungo zvisina simba.
Yakawedzerwa Nguva Yakavhurika: Iyo yekunamatira inoramba ichishanda kwenguva yakareba, ichibvumira kugadziridzwa panguva yekuisa tile.
2. Kuwedzera Kushanda
Cellulose derivatives inowedzera kushanda kwematairi anonamira nekugadzirisa rheological properties. Musanganiswa wekunamatira unowedzera kubatana uye nyore kuparadzira, kuderedza kushanda nesimba uye nguva panguva yekushandisa.
Smooth Application: Iyo yakawedzera viscosity inodzivirira kudonha uye kudonha, kunyanya panzvimbo dzakatwasuka.
Yakavandudzwa Kuvhara: Iyo inonamira inopararira zvakafanana, ichiva nechokwadi chekuvhara yakazara uye nani kunamatira.
3. Kuvandudza Kunamatira
Cellulose derivatives inobatsira kune adhesion properties ye tile adhesives. Iyo firimu-kuumba kugona kweaya mapolymers anovimbisa chisungo chakasimba pakati pe tile uye substrate.
Bond Strength: Iyo firimu yakatetepa inogadzirwa ne cellulose derivatives inosimudzira iyo mechanic inopindirana uye inonamira bond simba.
Flexibility: Iyo yekunamatira inoramba ichichinjika, inogadzirisa madiki mafambiro uye kuderedza njodzi yekumisikidza mataira.
4. Thickening Agent
Sezvinoita thickening agents, cellulose derivatives inowedzera viscosity yematairi anonamira. Izvi zvinonyanya kukosha pakuchengetedza kuwirirana kwakakodzera uye kugadzikana kwemusanganiswa wekunamatira.
Consistency: Iyo yakakora yekunamatira musanganiswa inoramba iine homogenous, kudzivirira kupatsanurwa kwezvikamu.
Kugadzikana: Iyo yakawedzera viscosity inoderedza mukana wekunamira kumhanya kana kudonha, zvichiita kuti ive yakakodzera kune ese ari maviri akatwasuka uye akatwasuka application.
5. Sag Resistance
Muzvishandiso zvinosanganisira nzvimbo dzakamira, senge kumadziro matairi, sag kuramba kwakakosha. Cellulose derivatives inosimudzira sag kuramba kwematairi anonamira, kuve nechokwadi chekuti mataira anoramba aripo panguva uye mushure mekushandisa.
Vertical Applications: Iyo inonamira inogara panzvimbo isina kutsvedza pasi, ichipa yakasimba yekutanga kubata uye kuderedza kudiwa kwerutsigiro rwemuchina.
Uniform Ukobvu: Iyo inonamira inochengetedza hukobvu hunoenderana, hwakakosha kuti uwane yakaenzana uye nhanho tile pamusoro.
6. Yakavandudzwa Yakavhurika Nguva uye Kugadziriswa
Cellulose derivatives inowedzera nguva yakazaruka yekunamatira mataira, iyo nguva iyo mataira anogona kugadziriswa pasina kukanganisa kusimba kwechisungo. Izvi zvinonyanya kubatsira mumapurojekiti makuru apo kuiswa chaiko kunodiwa.
Kugadziriswa: Yakareba nguva yakavhurika inobvumira kumisikidzwa kwematiles kuti ive nechokwadi chekurongeka uye nzvimbo.
Yakaderedzwa Marara: Iyo yekunamatira haina kumisa nekukurumidza, inoderedza marara uye kuve nechokwadi chekushandisa kwakanaka kwezvinhu.
Mhando dzeCellulose Derivatives Inoshandiswa muTile Adhesive
Mhando dzinoverengeka dzema cellulose zvinobva kune anowanzo shandiswa mumatairi anonamira, imwe neimwe ichipa chaiwo mabhenefiti:
1. Methyl Cellulose (MC)
Kunyungudika kweMvura: MC inonyungudika mumvura, ichiita mhinduro yakajeka, inopenya inosimudzira kuchengetwa kwemvura uye kushanda.
Thermal Gelation: MC inoratidza thermal gelation properties, zvichireva kuti gels pakupisa uye inodzokera kune mhinduro pakutonhora, inobatsira mukuchengetedza kugadzikana kwekunamatira pasi pekushisa kwakasiyana.
2. Hydroxypropyl Methylcellulose (HPMC)
Enhanced Properties: HPMC inopa yakagadziridzwa kuchengetedza mvura, kunamatira, uye firimu-kugadzira zvivakwa zvichienzaniswa neMC.
Versatility: Inoshandiswa zvakanyanya mumagadzirirwo akasiyana siyana nekuda kwechiyero chekukora, kuchengetedza mvura, uye hunhu hwekunamatira.
3. Hydroxyethyl Cellulose (HEC)
Kuwedzera Kubudirira: HEC inobudirira thickener, inopa yakakwira viscosity kunyangwe pakadzika kudzika.
Rheological Control: Inosimudzira kuyerera uye kuyera zvimiro zveanonamira, inovandudza application nyore.
Cellulose derivatives inoita basa rakakosha mukuita uye kushanda kwematairi anonamira. Kugona kwavo kuchengetedza mvura, kuwedzera kushanda, kuvandudza kunamatira, uye kupa sag kuramba kunoita kuti zvive zvakakosha mumaitiro emazuva ano ekuvaka. Iko kubatanidzwa kweseruserose inobuda semethyl cellulose, hydroxypropyl methylcellulose, uye hydroxyethyl cellulose inovimbisa kuti mataira anonamira anosangana nezvinodiwa zvinodikanwa zvekusimba, nyore kushandisa, uye kushanda kwenguva refu. Sezvo hunyanzvi hwekuvaka hunoramba huchishanduka, kukosha kwemapolymer aya anosiyana-siyana mumatairi anonamira acharamba akakosha, zvichibatsira mukufambisira mberi kwezvinhu zvekuvaka uye matekiniki.
Nguva yekutumira: Jun-05-2024