| CAS No.: | 70131-67-8 |
|---|---|
| Formula: | Ho[(CH3)2sio]Nh |
| EINECS: | 0000000 |
| Status: | Liquid Catalyst |
| Response Type: | Polymerization |
| Usage: | Positive Catalyst |
| Samples: |
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| Customization: |
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Audited Supplier Chemical Name: Hydroxy Terminated Polydimethylsiloxane
Synonyms:
1. Hydroxy terminated polysiloxane
2. Hydroxy terminated PDMS
3. OH polymer
4. Hydroxy silicone oil
CAS NO.: 70131-67-8
OH polymer, hydroxypolysiloxanes is a hydroxyl terminated polydimethylsiloxane. It is a series of functional polymers with different viscosities and different contents of terminal hydroxyl groups. Low-viscosity polymers can be used for filler surface treatment and anti-structuring additives for high-temperature adhesives, and can also be used in room-temperature adhesive formulations. Low-viscosity hydroxy silicone oils can also be used as reactive diluents to adjust the overall viscosity of the formulation.
Technical Index:
| Item | Index |
| Appearance | Colorless clear polymer |
| Vicosity(25ºC,Mpa.s) | 10000 |
| Hydrox content(%) | 0.5-3,depends on the vicosity |
| Volatile(%) | Lower than 1 |
Usaged and 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 .
Application:
1.Used for insulation, shockproof, moisture-proof and corrosion prevention of electronic components and semiconductors.
2.Used in mechanical lubrication.
3.Can be used for vehicle maintenance.
4.Used in plastics, printing, construction and other industries.
5.Used in the production of silicone sealant.
1. The product should be stored in airtight plastic bucket clean not in contact with acid, alkali substances;
2. Stored at room temperature and ventilated shade;
3. According to the non -toxic and non-dangerous goods storage and transportation.
4. Packed with 200kgs Iron Drum or 1000kgs IBC tank.
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