Silicone Surfactants VS Non-silicone Ones

Surface tension:

The surface tension of silicone surfactant is much lower than the non-silicone ones, and this will lead to the big gap in the contact angle,generally positively related, see table as below.

Contact Angle:

Usually the contact angle is negatively related to the wetting speed and coverage diameter on the surface, see table as below.

Wetting speed and diameter:

PET is a hydrophobic surface.The good performance of silicone surfactant on such surface make it possible to have good market in agriculture.

The waxy layer of crop leaves are also hydrophobic. Genrally agrochemicals will find it hard to enter inside the leaf structure by stomatal absorption. And the wetting speed is slow, the spreading coverage is not big. The drops may slide off the leaf surface or big drop may even bounce out, thus leads to the pesticide waste and efficacy not meet the expectation.

With the help of silicone surfactant, the agrochemicals can spread on the leaf surface, then go into the small part of crops and weeds, and maximize the efficacy.

For discussion, contact me as below:

Agricultural Silicone Surfactant PASS

Description

Common name: Silicone Surfactant

Chemical name: Polyether Modified Trisiloxane, Polyalkyleneoxide Modified Heptamethyltrisiloxane
CAS no.: 67674-67-3 
PASS is a super spreading agent for foliar-applied agrochemicals in tank mix, including herbicides, insecticides, fungicides, plant growth regulators, fertilizers and micro-nutritions. 

Outstanding Merits
1) Low surface tension leading to enlarging droplet coverage
2) Improve the spraying solution penetration thus enhance the efficacy and rainfastness
3) Save the use of water and agrochemicals to get the same efficacy

Key Specifications
Appearance: Colorless transparent to light amber liquid
Surface tension (0.1%): 20.5-22.0 mN/m 
Density (25℃): 1.01-1.015 g/cm3 
Viscosity (25℃): 30-50mpa.s 
Cloud point (0.1%): < 10℃

Product Usage
Dosage of PASS in tank mix: 0.025%-0.1% of the spraying solution, generally 5 ml PASS per 15 liters spray solution. 
Better pH range is 5-8. Use within 24 hours of preparation.

Packing
1L, 2.5L, 20L, 200kg/drum, IBC, etc, depends on customers’ need.

Product Safety, Handling and Storage
Transport as non-dangerous goods.
Tight up and store in cool place.
Shelf life is 24 months.

For more information about PASS, please feel free to contact us.
Contact name: Susan Hu
E-mail: susan@profirst.biz , susan@profirst.cn, agsale@profirst.biz
Mobile/Whatsapp: +86-15902190115 
Skype: susan_hujiali@hotmail.com
Shanghai Profirst Co., Ltd.
www.profirst.cn