ZG-C01 Methylvinylsilazane

Methylvinylsilazane is a polymer whose main chain is composed of Si-N bonds. Si-C==C bonds provide carbon-carbon unsaturated double bond active sites and can be used to modify resins containing unsaturated olefins. Methylvinylsilazane with specific viscosity and molecular weight can also be obtained through addition reaction, and other active groups can also be introduced through the addition reaction of carbon-carbon unsaturated double bonds.

Si-N bonds easily react with hydroxyl-containing substances and can be used as amine curing agents. They can also be used to modify hydroxyl-containing resins to improve temperature and weather resistance, such as phenolic resins, epoxy resins, alkyd resins, acrylic resins, etc.

Silazanes are widely used in the rubber industry, ceramic industry, etc. For example, silazane is a good additive in the silicone rubber processing industry. They can not only act as structure optimization control agents but also improve the heat resistance and performance of vulcanized rubber. Mechanical strength has been improved. Therefore, silazane is added to other organic synthetic rubber processing industries to improve its thermal stability and mechanical strength.

Test items	Performance	Detection method
Color and appearance	Light yellow to colorless transparent liquid	GB-T 1721-79
Viscosity (coat - 4 cups)	11s	GB-T 1723-1993
Quality specifications	≥95%	Q/YX 10-2023
Solid content ((120±2)℃)	＞96%	GB/T 1725-2007
Density (g/mL)	1.02±0.01	GB/T 6750-2007
Relative molecular mass	255-591	GB/T 27843-2011
Hardness (Pencil)	≥4H	GB/T 6739-2006
adhesion	Level 0	GB-T 9286-1998
Salt spray resistance	＞500h	GB/T 1771-2007

temperature

165℃

180℃

200℃

250℃

Curing conditions

(Dry film 5-25 um, humidity 50%)

Surface stem

0.2h

0.1h

Hard work

0.5h

Standard processing procedures

Surface cleaning → roughening → cleaning and blowing → methylvinylsilazane treatment → curing

Process description

1. Roughing treatment: Before applying silazane, grind or sandblast the surface of the substrate to remove rust, dust, dirt, etc. attached to the surface of the object to be treated. The roughening treatment has a great influence on the coating effect. The best is Sa2.5 and the minimum is St3 without scale (GB/T 30790.4-2014), so please pay full attention.

2. Cleaning: Use special cleaning agent or degreasing agent to remove oil, dust, etc. remaining on the roughened surface.

3. Dry the substrate: Before applying silazane, make sure the surface of the substrate is dry and clean.

4. Paint mixing: This product is a single component. Shake it thoroughly before use and filter it with 400 mesh for later use.

5. Paint application: The laboratory spraying method of 0.5-1.0 caliber spray gun has better appearance and uniformity.

6. Curing: After spraying, let the surface dry for 10 minutes, then keep and cure at 180°C for 30 minutes (the coating is used below 400°C), or 250°C for 30 minutes (when the coating is used above 400°C).

Storage and transportation

1. It must be stored in accordance with national regulations. The storage environment should be dry, cool, well ventilated, and away from heat and fire sources. Packaging containers must be kept tightly closed and stored with care.

2. The storage temperature should be between 5℃ and 30℃, and the storage period is 6 months.

3. Unused paint must be stored with the lid closed and sealed.

4. The prepared unused paint cannot be recycled and should be disposed of in accordance with local regulations.

5. Products that have exceeded the shelf life can only be used after passing the test.

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