Di-n-butyltin lauric acid
Used as a catalyst for polyurethane synthesis and room temperature vulcanized rubber. The use of dibutyltin dilaurate as a catalyst alone can lead to a decrease in the aging resistance of PU, while the composite effect is better when the ratio of triethylenediamine is 1: (2-4). The effect of the dosage of di-n-butyltin dilaurate on the properties of polyurethane adhesive is shown in the table below. When used as a catalyst for crosslinking acetic acid based silicone sealant, the catalytic effect of the combination with triethylamine (TA) (DBTDL: TA=0.2:0.1) is significantly higher than that of a single catalyst, and the two have a synergistic effect. Accelerate the hydrolysis and condensation of silicon oxygen groups with moisture in the air to form silicon oxygen bonds. Can accelerate the curing speed of polyurethane, with a reference dosage of 0.05% to 0.3%.
Basic performance
Relative molecular weight 631.56, yellow transparent liquid, relative density 1.066. Freezing point 8-16 ℃, boiling point>200 ℃. Flash point (open cup) 226.8 ℃, refractive index 1.468-1.470. Viscosity (25 ℃) 45.3mPa. s。 Soluble in toluene and insoluble in water, with a certain degree of corrosiveness to metals. Flammable, toxic, with a high allowable concentration of 0.1 milligrams per cubic meter in the air.
quality index
Chromaticity (iodine ratio)<35
Relative density (ρ 24) 1.025~1.065
Foreign brands include Dabco T-12 (USA), Kosmos 19 (Germany), TN-12
Prepared by condensation of di-n-butyltin oxide and lauric acid at around 60 ℃.
Technical indicators:
|
Project
|
Indicators
|
|
Appearance
|
White milky liquid
|
|
Content of dimethyl tin dilaurate(％)
|
≥99.0
|
|
Total tin content（%）
|
17-19
|
|
Volatile matter（%）
|
≤0.4
|
|
Relative density
|
1.05
|
|
Water content（%）≤
|
0.1
|
Application areas:
Mainly used as organic tin catalysts for silicone sealants, polyurethane organic tin catalysts, and silicone finishing agents in the textile industry, the application development will replace dibutyltin dilaurate.
User Notice
Packaging: This product is packaged in plastic coated iron drums or plastic drums, with a net weight of 25Kg;
Transportation: This product is a heat stabilizer for polyvinyl chloride (PVC) processing and is classified as a non flammable and non explosive material;
Storage: It is recommended to store at a temperature of 5-30 ℃. Place the iron drum in a cool and dry place, and seal it immediately after use;
Safety: This product should be prevented from entering the eyes. If it splashes on the skin, it should be washed with soap in a timely manner. The workplace should have good ventilation, and direct inhalation of raised dust should be avoided during production operations;
Shelf life: 12 months.
Advantages: Low toxicity, excellent catalytic performance, and environmental friendliness. It can meet the environmental requirements of Europe, America, and Japan (the restriction level of butyl tin is gradually increasing), meet the needs of manufacturers who need to export products, and gradually replace butyl tin with methyl tin.
Our company has stock available and does not require customization. The product price includes invoice and shipping cost.
Free samples can be sent and small quantities can be purchased.
English
