嵌段室温硫化甲基硅橡胶(103型) - Names and Identifiers
嵌段室温硫化甲基硅橡胶(103型) - Introduction
Hydroxy-terminated polydimethylsiloxane (known as PDMS-OH) and polymethylethoxysiloxane (known as PDMS-MEO) are two common silicone polymers.
Nature:
1. PDMS-OH is a polymer with a linear structure and a hydroxyl (-OH) functional group on the molecular chain.
2. PDMS-MEO is also a polymer, also has a linear structure, the molecular chain contains methylethoxy (-CH3CH20-) functional groups.
Use:
1. PDMS-OH is commonly used in the synthesis of silicone rubber, silicone gel, liquid silicone rubber and other materials, can be used as an increase in cosmetics, lubricants, liquid dampers, anti-friction agents and anti-adhesion agents and other additives. In addition, materials prepared from PDMS-OH can also be used for coatings and homogeneous liquid carriers in the biomedical field.
2. PDMS-MEO are mainly used as lubricants and mold release agent, can also be used in coatings, plastics, Inks and Adhesives.
Preparation Method:
1. The preparation of PDMS-OH is usually obtained by reacting epoxidized polymers with water. The reaction is carried out in the presence of a catalyst required for hydroxyl groups.
2. PDMS-MEO can be obtained by introducing methyl ethoxy into PDMS-OH, and can be carried out by reacting PDMS-OH with methyl chloride under alkaline conditions.
Safety Information:
1. PDMS-OH and PDMS-MEO are relatively safe to human body, environment, animals and plants, but attention should still be paid to avoid swallowing or direct contact with eyes and skin.
2. When using these two compounds, pay attention to good ventilation conditions, and wear appropriate protective gloves and eye protection.
Please note that in actual operation and application, the operation and management should be carried out in accordance with the specific instructions for use and safe operation procedures of the relevant chemicals.
Last Update：2024-04-09 20:52:54