Tikanga Whakamatau Xanthan Gum

1. Swhakamātautau olubility

Tangohia he tauira 1 g, ata ringihia ki roto i te ipurau e 100 ml te wai, mo te 15 meneti, kia tupato ki te whakauru i te pae oho ki roto i te wai, ata whakatuwheratia te whakaranu kia tere te 200 r/min, ka rewa rawa i muri i te 25 meneti, i runga i te tikanga o runga ake nei kare nga tauira e memeha ki te waihano, acetone, ethyl ether ranei.

2. Gel whakamātau

Tāpirihia he 300 ml wai ki roto i te ipurau 500 ml, whakamahana ki te 80 ℃, whakatuwheratia te whakaranu kia tere te 200r/min, Hei whakakorikori me te tapiri 1.5g tauira maroke me te 1.5g mawhitiwhiti beangum.ka te ranunga ki te otinga, Tonu ki te whakaoho neke atu i te 30 meneti.(kaore i raro iho te mahana o te wai i te 60 ℃ i te wa e whakakorikori ana).Kati te whakaoho, te whakamatao i te iti rawa 2 haora i te pāmahana rūma, ka heke te pāmahana ki te 40 ℃, ka hanga he matū kiri. tauira otinga hei rereke, kaua e tapirihia te kapia mawhitiwhiti, me te kore te kapia.

3.pokey

3.1 Tia taputapu 

Brook field viscometer hurihanga mita viscosity meter, etahi atu mahi rite ranei.

3.2Tte tikanga

a)Momo rotor rotor: 3

b)Te tere rotor: 60 r / min

c) Te ine i te pāmahana: 24 ℃ ~ 25 ℃

3.3 Nga mahi tātari

3.3.1 Te whakarite i te otinga kei roto te 1% tauira me te 1% te pāhare pāporo pūhaumāota.

a)Me te pepa pauna ma, maroke kia rite ki nga tauira mai i te 1.5 g me te pāhare pāporo pūhaumāota (tika ki te 0.01 g), i konatunatua rite;

b) Te ine i te 300 ml o te wai maturu ki roto i te ipurau 400 ml

c)Tangohia te ipurau i runga ake nei me te wai i raro i te whakaranu, whakatuwheratia te whakaranu, whakakorikorihia te tauira ranunga ata werohia ki roto i te wai whakakorikori me waenga i te karaihe wai, ka timata te wa, 800 r/min mo te 2 haora, whakakorikori te pāmahana 24 ℃ ~ 25 ℃;

d)Kati te whakakorikori, tangohia te kapu, me te pae oho me etahi atu mea rite ki runga-a-iho etahi wa.

3.3.2 Whakatau

Tangohia te rahinga tika o te 1% otinga tauira me te 1% wairewa konupora chloride, hoatu ki roto i te momo 100 ml ipurau, whakatau i roto i nga tikanga kua whakaritea.

4.Uara kaha kutikuti

4.1 Te tikanga whakatau

E ai ki te taahiraa 3, te uara pokey o te 3 tere rotor ki te 6 r/min me te 60 r/min,

4.2 Nga hua o te tatauranga

Ko nga uara kaha kutikuti kua tatauhia ma te momo (1):

N=η1/η2 ……………………（1）

Momo:

N – uara mahi kutikuti;

η1 – te pokey o te uara me te tere 6 r/min, te waeine mo te centipoise (cP);

η2- te viscosity o te uara me te tere 60 r/min, te wae mo centipoise (cP);

5.Te mate taimaha maroke

5.1 Te kaupapa

Ko te tauira whakamaroke ki te taumaha tonu i raro i te ahua o tetahi pāmahana, tatauhia te kounga o te rauemi kua ngaro.

5.2 Te taputapu

a)Patara taimaha karaihe: roto diameter 60 ~ 70 mm, te teitei i raro o 35 mm.

b)Whakaahua hiko te whakamaroke i te wera o te oumu

5.3 Nga mahi tātari

Whakanohia te pounamu pauna ki te 105 ℃ + 1 ℃ maroke oumu mo te 30 meneti, te taumaha tonu.I roto i te pounamu pauna tika kia rite ki te 1.0 g ki te 1.0 g tauira (tika ki te 0.0001 g), Hanga, nekehanga taha taha, Hanga tauira ka tohaina i roto i te pounamu pauna,Patara pauna utanga ka maka ki roto i te oumu,Whakatuwherahia te potae me nga potae pounamu ki te oumu,Me whakamaroke i raro i te 105 ℃ + 1 ℃ mo te 2 haora, Whakatuwheratia te oumu, Hipokina te pounamu pauna ki te tauira tonu, Whakamao ki te pāmahana rūma i roto te whakamaroke, Te taumaha tonu, E ai ki te whakaiti i te kounga me te whakatauira rahinga tauira te kore taumahatanga maroke.

5.4 Nga hua o te tatauranga

Ko te hautanga papatipu maroke o te kore taumaha ka tatauhia e te momo (2) :

X=[(m1-m2)/m]×100……………………（2）

Momo:

X – hautanga papatipu maroke o te kore taumaha, %;

m1 -Ko te quility o te pounamu pauna me te tauira i mua i te whakamaroke, he karamu te waeine (g);

m2 – Ko te quility o te pounamu pauna me te tauira i muri i te whakamaroketanga, he karamu te waeine (g);

m – te kounga o te tauira, he karamu te waeine (g).