IOTA Hydroxyl Silicone Oil
Product Description
Hydroxyl silicone oil is OH-terminated silicone oil.
Structural formula
HO-Si(CH3)2O [Si(CH3)2O]nSi(CH3)2-OH
Chemical name: a, w- dihydroxyl
polydimethylsiloxane
generally named 107 silicone rubber.
the low viscosity hydroxyl has reactive hydroxyl groups, it can be used in making liquid silicone rubber, as structural controlling agent.
Colorless transparent liquid with good electrical insulating properties and high temperature resistance, high flash point, low freezing point, used in -50 C ~ 250C conditions.
Technical Index
Appearance: Colorless transparent liquid
Viscosity(25°C, mpa.s): 25~100000
Hydroxyl content(%): 0.5 - 3 (related to the viscosity)
Application:
1. used as a release agent for paper, such as the label backing paper, asphalt wrapping, sealing tape base paper,etc.
2. as the main component insulating paint or component of insulator in electrical power industry.
3. Used as a condensation-type RTV silicone rubber based adhesive and diluted material, such as sealants and plastic mold base material.
4. Small molecule hydroxyl silicone oil (25-30cst with 8% hydroxyl content) is an good control agent for silicone rubber,itcan improve the processing performance and increase the transparency of silicone rubber products, improved working conditions, .
Dosage
Usually with the curing agent to achieve the crosslinking, it must be fixed by means of a coupling agent for the release paper, generally the curing agent is about 3 to 5% of gum base, the coupling agent is about 0.5 to 1 % of gum base.
In most cases the solvent was diluted with 10 times the first gum base, then add the coupling agent and the curing agent after mixing uniformly coated on the substrate surface at room temperature or heat curing. It need over 30 minutes at room temperature, and 30 seconds for 120 ~ 150 o C. there is no need any solvents for sealants and molds for rubber, add the curing agent and stir ( one-component and two-component curing agent is used is not the same ) , after 30 to 120 minutes degassing it can be cured .
Packaging and Storage
1. should be stored in airtight plastic bucket clean not in contact with acid, alkali substances;
2. Stored at room temperature and cool place, avoiding the sunlight.
3. non-dangerous goods.