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Phenolic amine epoxy paint crosslinking agent
2017-8-9 23:49:45
Phenolic amine epoxy paint crosslinking agent
Diethyltoluenediamine Raw material ：
TDA industrial, Sichuan production
Ethylene (Et) polymer grade, Shanghai production
TEA industrial imports
Phenolic aldehyde amine epoxy crosslinking agent were introduced in this paper and the status and the characteristics of raw materials, and phenolic aldehyde amine epoxy crosslinking agent for the generational, expounds the third generation of phenolic aldehyde amine epoxy crosslinking agent series, specialty, etc. Forecast and forecast future demand and direction.
Phenolic aldehyde amine epoxy crosslinking agent in our country has more than 20 years of production history, it is a ideal room temperature crosslinking agent of epoxy resin, and can at 0 ℃, humidity is more than 80% and underwater environment such as the crosslinking of various types of epoxy resin.
Due to its small molecular weight, low viscosity, good miscibility with epoxy resin, invasive strong, construction is convenient, fast crosslinking, and therefore is widely used in the project of the equipment and pipeline corrosion, civil construction materials such as concrete, stone, steel, ceramic tile adhesive, sealing and coating industry, glass fiber reinforced plastic industry and the rise in recent years, epoxy floor paint, coat, etc. It is the largest crosslinking agent in China. Belongs to non - toxic grade fine chemical products.
Foreign countries since the 1960 s after manny (mannich reaction proceeds phenolic aldehyde amine used in epoxy crosslinking agent, domestic developed in the seventy s, early eighty s production up to now, in addition of phenol with phenol with formaldehyde, aldehyde, amine with ethylenediamine, has grown to nearly 200 home all kinds of raw materials to produce a variety of phenolic aldehyde amine (T - 31) crosslinking agent, change the original intention of pioneered the T - 31, most manufacturers have called T - 31, a few manufacturers call model also by the user as T - 31 crosslinking agent (such as 703, 907, 881, TZ series), naturally formed a T - 31 is phenolic aldehyde amine epoxy crosslinking agent system (pass) said (or name).
2. The status of raw materials used for the crosslinking agent of phenolic amine (t-31)
As the name suggests, phenolic amine (t-31) crosslinking agent is mainly used for phenols, aldehydes and amines. In particular, amines have developed rapidly, and there are dozens of them.
Phenolic amine (t-31) crosslinking agent is modified by phenol, formaldehyde, polyamine and mannich.
Chinese name: Diethyl toluene diamine(DETDA)Diethyltoluenediamine Raw material ：
TDA industrial, Sichuan production
Ethylene (Et) polymer grade, Shanghai production
TEA industrial imports
A reagent grade additives
According to the type of amine, the phenolic amine (t-31) crosslinking agent can be divided into three generations according to the modified time and the modified application performance and the trend of variety and development. (first generation mainly fat amine such as ethylenediamine, hexamethylenediamine, divinyl three amine, etc.) with phenol, formaldehyde manny period (mannich) modification, the second generation of aromatic amine and phenol and formaldehyde in manny (mannich) modification. The third generation is the mannich modification of lipocycline (e.g., methylcyclopentamine, or TAC) with phenol and formaldehyde.
The characteristics of three generations of phenolic amine (t-31) crosslinking agent
To understand the characteristics of mannich modification, we should first understand the modified ingredients: the chemical structure and properties of fatty amine, lipid-cycline and aromatic amine, and in order:
Color phase: (excellent) fatty amine, fatty amine, aromatic amine (poor)
Viscosity: (low) fat cyclamine, fatty amine, aromatic amine (high)
Application period: (long) aromatic amine, fatty cyclamine, fatty amine (short)
Crosslinking: (fast) fatty amine, fatty cycline, aromatic amine (slow)
Stimulation: (strong) fatty amine, aromatic amine, fatty cyclamine (weak)
Toxicity: (strong) aromatic amine, fatty amine, fatty cyclamine (weak)
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
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