I-Putty powder sisixhobo sokwakha esithandwayo esisetyenziselwa ukugquma kunye nokucokisa iindonga, iisilingi kunye neminye imiphezulu. Ingumxube wezinto ezahlukeneyo ezifana nesamente, i-filler kunye ne-binder. IHydroxypropylmethylcellulose (HPMC) yenye yezibophelelo ezisetyenziswa kwiputty powder. I-HPMC i-non-toxic, i-polymer engenavumba ephucula ukusebenza kwe-putty powders. Isetyenziswa kwiintanda kwiintlobo ezahlukeneyo ze-putty ukuphucula ukusebenza kwayo. Eli nqaku liza kuxoxa ngeentlobo ezine zokuqhekeka kwe-putty kunye nendlela yokusebenzisa i-HPMC kudidi ngalunye.
Iindidi ezine ze-putty cracks zilandelayo:
1. Ukucutheka kweentanda
I-Srinkage cracks ngenxa ye-putty eyomileyo. Njengoko i-putty yomile, iyancipha, ibangele ukuba kuvele iintanda phezu komhlaba. Ubunzima bezi zintanda buxhomekeke ekubunjweni kweputty. I-HPMC inokongezwa kwi-putty yokunciphisa iintanda zokuhla. I-HPMC isebenza njenge-arhente yokugcina amanzi, inciphisa inkqubo yokomisa kwaye ivumela i-putty ukuba yome ngokulinganayo. Kwakhona kunciphisa umthamo wamanzi afunekayo ukuxuba i-putty, enceda ukunciphisa ukucutheka ngexesha lokumisa.
2. Ukuqhekeka okushushu
Ukuqhekeka okushushu kubangelwa ukwandiswa kunye nokucutheka kwezinto njengoko ubushushu buguquka. Zixhaphakile kwizakhiwo ezinoguquko olukhulu lobushushu, njengakwiindawo ezineemeko zemozulu ezimandundu. I-HPMC inokunceda ukunciphisa ukuqhekeka kwe-thermal ngokwandisa iipropati zokugcina amanzi kwii-putty. Ipolymer isebenza njengesibophelelo esinceda ukubamba amanye amacandelo e-putty kunye. Oku kunciphisa umngcipheko wokuqhekeka ngenxa yokwandiswa kwe-thermal kunye nokunciphisa.
3. Ukuqinisa iintanda
Ukuqhekeka kokuqina kubangelwa ukuqina kwe-putty. Njengoko i-putty iqina, ilahlekelwa ukuguquguquka kwayo, ibangela ukuba iqhekeke. I-HPMC inokunceda ukunciphisa ukuqhekeka kokuqina ngokwandisa ukuguquguquka kwe-putty. Le polima isebenza njenge-plasticizer, yenza i-putty ibe bhetyebhetye ngakumbi. Oku kuvumela ukuba imelane nokunyakaza kwendawo epeyintiweyo kuyo, ukunciphisa umngcipheko wokuqhekeka.
4. Iintanda zesakhiwo
Ukuqhekeka kwesakhiwo kwenzeka ngenxa yokuhamba kwesakhiwo okanye umgangatho ophantsi. Zinokubangelwa zizinto ezahlukeneyo, njengokuthotha, iinyikima, okanye ukutshintsha kokufuma okungaphezulu. I-HPMC inokunceda ukunciphisa iintanda zesakhiwo ngokuphucula iimpawu zokuncamathelisa ze-putty. I-polymer isebenza njenge-binder, inceda i-putty ukuba ibambelele ngokufanelekileyo kumphezulu. Oku kunciphisa umngcipheko wokuqhekeka ngenxa yokunyakaza kwendawo engaphantsi.
I-HPMC iyisithako esibalulekileyo kwi-putty powders kuba inokunceda ukuphucula ukusebenza kweentlobo ezahlukeneyo zokuqhekeka kwe-putty. Ngokunciphisa umngcipheko wokuncipha, ubushushu, ukuqina kunye nokuqhekeka kwesakhiwo, i-HPMC inokunceda ukuqinisekisa ukuba ii-putty zihlala ixesha elide kwaye zigcine ubuhle bazo. Njengoko ishishini lokwakha liqhubeka nokuvela, i-HPMC ihlala isisithako esibalulekileyo kwi-putty kuzo zonke izicelo zokwakha.
Ixesha lokuposa: Aug-23-2023