Meishan sells low ammonia natural latex
low Ammonia concentrated natural rubber latex（ CNR ）
Quality inspection report
term order | Company | quality index | Measured data |
Total solids content | % | ≥ sixty-one .5 | sixty-one seventy-seven |
Dry glue content | % | ≥ sixty .0 | sixty-one point one nine |
Non rubber solid content) | % | ≤ two | one .58 |
Alkalinity (calculated as per concentrated milk) | % | ≤0. twenty-nine | zero twenty-four |
Volatile fatty acid value | --- | ≤ zero point one zero | zero point zero two four |
Mechanical stability | S | ≥ six hundred and fifty | sixty-three |
Copper content | mg/kg | ≤8 | -- |
Manganese content | Mg/kg | ≤8 | -- |
Clot content | % | ≤0.0 five | -- |
Residue content | % | ≤0.10 | -- |
Potassium oxyhydrogen value | -- | ≤ one | -- |
Test conclusion | Through inspection, this batch of products is in conformity with GB/T8289 |
explain | （1） Either total solid content or dry glue content. （2） Generally, concentrated milk is subject to only six routine inspections. If the customer requires special requirements, other inspections can be added. |
This product implement national standard GB/T8289-200 eight
┅ Product Introduction ┅
Why should fresh latex be clarified ? What should be paid attention to in the clarification process?
objective : Clarification is mainly to further remove impurities or gels: because the gel after initial filtration still has small sediment, and magnesium phosphate is generated in the ammoniated latex, which will reduce the quality of concentrated emulsion; preliminary
blend
requirement : Supplement NH3 in time to determine whether to add TT/NnO and soap. Master the clarification time. About two hours
Natural latex has good film-forming performance, high wet gel strength, good mechanical properties, low content of non rubber ingredients, and high mechanical stability (generally not less than 600s), with white color and good foam stability.
Water based environmental protection products, harmful.
The product quality is stable, even and delicate.
The adhesive film is tough, with good permeability to the bonding surface, high bonding strength and good brushing performance.
It is a fast drying product, and the adhesive film will not be brittle, powdery or sticky to the roller after bonding.
Its appearance is milky white, without rotten odor, slightly with ammonia odor, and total solid content 61.5, dry glue content 60, difference between total solids and dry glue 1.5, alkalinity 0.65, ammonia content 0.72, mechanical stability 650, volatile fatty acid 0.05.
Shelf life: at 180 days below 20 ℃ (sealed); 60 days if the temperature is above 20 ℃ (sealed). If the cover has been opened, it should be used up within 30 days, otherwise the gum will change.
