一.Product description : leavening agent LT-701 multiplies in the alkaline chemical residue system than plastic, epoxy resin as the leavening agent, it can effectively help after drilling the hole left in the plastic residue becomes soft and can improve their hydrophilicity, the next step of potassium permanganate than plastic slag process even more outstanding results.
二.Characteristics :
1. Leavening superior performance, drilling can be removed when the plastic residue debris.
2. Apart from the superior performance, can remove all oils (especially for machinery oil), the wall hydrophilic properties.
3. Bath high stability and long service life.
三.Physical and chemical properties : LT-701 is an alkaline liquid, the main features are as follows :
1. Color : Colorless transparent
2.PH value (approximately) : Six-7
3. The proportion (approximately) :0.900 - .990
四.Bath preparation : (according to the following steps)
1, by adding hot distilled water or deionized water (60 ° C) 60% (volume ratio);
2, joined the leavening agent LT-701 30% (volume ratio), and stir evenly;
3, by adding sodium hydroxide (purity above 99%) and 20 g / L, and stir until completely dissolved;
4, the final increase in distilled water or deionized water to work calibration, and stir evenly.
五.Equipment requirements :
Trough : stainless steel (SS316)
Rack : stainless steel (SS316)
Heating : stainless steel (SS316), titanium or Teflon sets heater
Filter : stainless steel (SS316)
Ventilation : the need
Shock : Recommended
六.Production conditions :
Temperature : 60-75 ° C
Time : 5 - 8 minutes
Mixing : mechanical Mobile (swinging rate of not less than 5cm)
Filter : 5-10um polypropylene (PP) filters recycled
Ventilation : Device ventilation systems to remove Bath steam.
Pai plate approach : PCB should vertical ground row in the shelves,and swinging into 5-10 ° angle to allow circulation hole solution.
After washing of : countercurrent-washed, washed each time for 2 - 4 min.
七.Control Add : LT-701 on the work, mainly in its intensity and alkalinity control add :
Level added : as working fluid level is inadequate, then using distilled water or deionized water added.
Intensity control : 60-100%
Added : handling 100m2 per PCB (plate size), add 5L LT-701 Solution; Or working fluid liter add 20ml LT-701 Solution will enhance the strength of 5%.
Alkalinity control :0.3 - 0.6 N
Added : handling 100m2 per PCB (plate size), add 0.15Kg sodium hydroxide (purity above 99%); Work liter or add 2g liquid sodium hydroxide (99% purity above), will increase alkalinity 0.05.
For trough conditions : working fluid handling liter 15-25m2 (plate size), the proposed re-allocation slot.
八.Analytical methods :
1,Strength Analysis :
(A) to the Pharmacy : A solid sodium hydroxide (NaOH)
(B) analysis steps : A precise volume of 50ml from the LT-701 working fluid, placed in the graduated cylinder 100ml;
2, by adding 10g of solid sodium hydroxide, and stir until completely dissolved;
3, static solution for a few minutes, until the solution is divided into two tiers, the upper and record a few milliliters of the solution.
(C) Calculation Method : Strength (%) = upper solution 15 ml ×
B, alkalinity analysis :
(A) Requirements of Pharmacy :
1, 0.1N hydrochloric acid (HCL)
(B) analysis steps :
1, precise 5ml volume from the LT-701 working fluid, placed 400ml beaker;
2, by adding 100 ml distilled water or deionized water;
3 to 0.1N HCl pH titration solution to = 7 date.
(C) is calculated as follows : Use ml × hydrochloride acid concentrations (0.1N)
Alkalinity (N) = sampling ml (5ml)
九.Inventory conditions : the drugs to be stored in dry and Celsius temperature of 10-32 ° C, to avoid sunlight and away from fire, and with the acidic drugs, and a strong oxidizer stored separately. In storage, removable tops to the air and stack up maximum of not more than two floors. The drugs usually stored for six months, when the use of non-removable tops open.
十.Note : When using leavening agent LT-701, please wear protection gloves, goggles and anti-acid clothing, avoid drugs
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