Polyamide kind of crosslinking agent

Polyamide kind of crosslinking agent, Elmore to ethylene polyamine and epoxy resin (EP1001) reaction end amino epoxy amine adduct, reacts with end carboxyl polyether alcohol made an amide amine compounds, with single epoxy compound sealing and finally get a amide, amine crosslinking agent.

Stark, etc will end carboxyl reaction was born into a polyether alcohol and fatty amine amide amine compound, and then react with epoxy resin epoxy compounds generated end, reacts with fatty amine, with ring oxygen content finally sealing side.

On the basis of the G - 328, G - 328 with binary carboxylic acid reaction generated an amide amine crosslinking agent, it is a new kind of water-based epoxy crosslinking agent, has more excellent performance.

After 20 years of development, now the type of epoxy system already has quick drying, and excellent corrosion resistance, solvent resistance, flexibility, such as performance, its main performance is close to or even more than the solvent system. As a result of the traditional type epoxy system need to join the coalescing solvents to reduce

Of the resin

Tg to facilitate the coalescence of resin particles, thus in the system of water ring oxygen introduced volatile organic solvents. Ciba company [20] developed a coalescence of solvent does not need to use the new technology of waterborne epoxy crosslinking agent, used for solid epoxy dispersion, zero VOC epoxy coatings can be obtained.

The crosslinking agent consists of two types of crosslinking agent with different reactive compound and into, including low reactivity of crosslinking agent (LMB6113) is a kind of water-soluble epoxy/amine adduct, solid mass fraction 80%, do not contain organic solvent, high reactivity of the crosslinking agent (XB3984) is a kind of modified water-soluble epoxy/amine adduct, solid mass fraction of 80%. By adjusting the ratio can be adjusted by the reactivity of crosslinking agent. The system has good corrosion resistance, especially suitable for anticorrosion primer.

Waterborne epoxy coatings of crosslinking agent is used with water-based epoxy resin. To improve the compatibility of epoxy resins and crosslinking agent, high performance, reduce the pollution to the environment, in order to conform to the requirements of environmental protection has become the research emphasis of the system. At present, using biomass resources as raw materials research for preparation of waterborne epoxy crosslinking agent were rare.

Have abundant biomass resources in our country, should be strong research and development to biomass resources as raw materials of new type water crosslinking agent. With the emerging of new technology, new process, believe in the near future many performance of waterborne epoxy coatings can fully achieve even more than the traditional solvent epoxy coatings, including room temperature crosslinking aqueous epoxy coatings have greater prospects for development.




Chinese name: Diethyl toluene diamine(DETDA)

Diethyltoluenediamine packing： net weight 200KG/ galvanized iron drum (a small cabinet pallet loaded 16 tons), 1000KG/IB barrels (a small cabinet loaded 18 tons or 23 tons of ISOTANK).


The synthesis of polyamide is an important milestone in the development of polymer chemistry. Carried out the research in the past, the international debate of polymer chain structure theory mainly is the lack of a clear no doubt experimental facts that support. At that time, little enough research of polycondensation reaction, condensation polymer is not complete.

Carothers adopted far more than on method of organic synthesis of general procedures, he in the polymer polycondensation reaction, is very strict with ratio of reactants, are not more than 1% of polycondensation reaction degree is quite complete, more than 99.5%, and synthesis of the polymer molecular weight of twenty thousand or so.

Carothers studies have indicated that the polymer is a kind of real macromolecules, can be obtained from known organic reactions, the polycondensation reaction of each molecule contains two or more than two active group, these groups through covalent bond connection each other, not by a force not sure simple small molecules will be gathered together, which reveals the rule of polycondensation reaction.

Carol was through research on polymerization reaction of the polymer can be broadly divided into two categories: one kind is condensation polymers which are obtained by polycondensation reaction; Another kind is by the addition of polymer addition polymerization.

Carothers assistant Florida (1910 ~ 1986), Paul j. Flory polyamide are summarized and a series of polycondensation reaction, proposed the polycondensation reaction in 1939 all the activity of functional group has the same basic principle, and put forward the polycondensation reaction kinetics and molecular weight and the quantitative relationship between polycondensation reaction.

The synthesis of polyamide effectively prove the existence of polymer, to TaoDingGe theory believe that don't move, from now on polymer chemistry truly established.

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