SAP
SAP (Superabsorbent Polymers) is a very competitive item in price which manufactured in Korea.
What is super absorbent polymer (SAP) ?
SAP is a new functional material with good water absorption and water holding capacity.
We can use it absorbing, retaining or blocking liquid – SAP can absorb water up to hundreds times of its own weight and turn to water gel.
As a Eco-friendly material, it is totally non-toxic, harmless and nonpolluting.
Super absorbent polymer for agriculture
SOCO Agriculture grade SAP just like a “Mini-reservoir”: absorb the water when it is raining and release water back when it is dry.
It can:
-improve seed germination & emergence, give plants an early, health start;
-contains Potassium 18.3% and release the fertilizer efficiency slowly;
-save the irrigation and improve the soil water holding capacity 85% (for sand);
– increase crops and fruit yield 70% (for melon planting in California).
How it works
Agriculture grade SAP consists of a set of polymeric chains that are parallel to each other and regularly linked to each other by cross-linking agents, thus forming a network.
When water comes into contact with one of these chains, it is drawn into the molecule by osmosis. Water rapidly migrates into the interior of the polymer network where it is stored. That’s how SAP powder turns to water gel.
As this water gel’s absorption ability is bigger than soil but less than roots of plants, the absorbed water by SAP will be released to plants when it is dry.
Tips: the specific retention of agriculture SAP is 1.3-1.4 MPa and the specific retention of roots is about 1.6-1.7 MPa.
Laboratory Test ( wilting point )
