交联剂101 - Names and Identifiers
交联剂101 - Physico-chemical Properties
| Melting Point | 149~153 |
| PH | 6~7 |
| Physical and Chemical Properties | This product is white needle-like crystal. The melting point was 150-153 °c. Ph value of 6~7. Open-loop finishing under alkaline conditions can improve the elastic strength of the fabric, reduce the shrinkage rate, and make the fabric feel full. |
| Use | This product is used as a finishing agent for cotton, polyester cotton, various chemical fibers, and their blended fabrics. It can be used as a crosslinking fixing agent when dyeing with reactive dyes. |
交联剂101 - safety
Open Data Verified Data
It should be stored in a cool and ventilated warehouse.
Last Update：2023-10-20 08:09:41
交联剂101 - Preparation method
Open Data Verified Data
Put 39.8kg of freshly steamed acrylonitrile and 7.65kg of acetic anhydride into the reaction kettle in sequence. Add 22.5kg of finely ground paraformaldehyde under stirring. Heat up to 40 ℃, add 0.75kg of sulfuric acid dropwise, and maintain at 70-72 ℃. After dripping, continue to react at around 70 ℃ until the material becomes viscous. When all crystals in the sampling test are needle shaped, the reaction reaches the endpoint. Immediately add 325kg of 80 ℃ hot water. Dissolve it. Filter while hot, cool and crystallize the filtrate, centrifuge filter, and dry the filter cake at 55-60 ℃. Crush and grind, add an appropriate amount of sodium p-toluenesulfonate, and mix evenly to obtain the product.
Last Update：2024-01-02 23:10:35
交联剂101 - Introduction
Crosslinking agent DTF-3, full name dithiocarbonyl ferrocene, is an organic crosslinking agent. It has the following properties:
1. Appearance: dark red to reddish brown crystals or granular solid.
2. Solubility: Soluble in organic solvents such as alcohols, ketones, ethers and aromatic hydrocarbons.
3. Melting point: about 172-175°C.
4. Stability: relatively stable at room temperature.
The main uses of DTF-3 crosslinking agents are as follows:
1. adhesive: used to improve the hardening performance of thermosetting adhesive, improve the heat resistance of adhesive.
2. Rubber: As a crosslinking agent, it can be used to improve the physical properties of rubber and increase its elasticity and wear resistance.
3. Electronic materials: used to prepare electronic materials with high conductivity and high thermal stability.
4. Coating: As a crosslinking agent, it can enhance the hardness, chemical resistance and heat resistance of the coating film.
DTF-3 is generally prepared by reacting carbon disulfide with a dimethyl carbonyl compound (e. g., dimethyl thiocarbonyl) in the presence of iron.
Pay attention to the following safety information when using the DTF-3:
1. DTF-3 for irritating substances, avoid contact with skin and eyes. In case of contact, flush with plenty of water and seek medical attention.
2. use process to ensure good ventilation, avoid inhalation of vapor and dust.
3. avoid contact with flammable substances.
4. storage should be sealed, avoid contact with air and moisture.
5. Read the product safety technical manual before use and follow the correct operation method.
Last Update：2024-04-09 21:21:28