Curing agent development trend

Curing agent development trend: since the 90 s, the world development trend of epoxy resin curing agent appeared many new characteristics, mainly has the following several aspects.

1. Look from curing agent type, appeared many varieties

(1) new species emerge in endlessly, amine is still in the lead, followed by acid research department. (2) containing P, Si, B, F, Mg and other elements of "half inorganic polymer" curing agent with its unique performance attention. (3) modification of mercaptan and modification of phenolic curing agent have different levels of development. (4) with thiol group at the end of the new block copolymer mass market.

2. Look from curing agent development direction, has six big trend

(1) functional curing agent is becoming a hot spot of the research and development. 1) versatility (with the curing, toughening, flame retardant, and promote the function such as) curing agent become people the pursuit of the ideal product. Due to the development of new structure and excellent performance of epoxy resin little progress, to meet the requirements for resin modified functional additives become the goal of a dose of pluripotent products more and more. 2) rapid curing, low temperature curing and minimum water absorption of curing agent is developing rapidly. 3) the special function of curing agent also had the very big development, such as flexible curing agent.

(2) curing agent for low toxicity and no poison. Modern is a feature in the development of curing agent, people not only pay attention to in the process of curing agent in the production and use toxicity and environmental pollution, and attaches great importance to the environmental pollution of the waste epoxy resin. In developed countries, the primary polyene more glue, aromatic amines have been replaced by the non-toxic or low toxic modified amine.

(3) to adapt to the special environment (damp, underwater, outdoor, etc.) used in curing agent is quite popular.

(4) for the epoxy to meet the demand of the high-performance, excellent mechanical properties, excellent electrical performance, mechanical properties of curing agent, will get great development.

(5) type of electron beam and light curing agent becomes more and more arouse people's attention.

6 powder coatings for curing agent, waterborne epoxy resin coatings for water soluble than fixing agent and dedicated one-component adhesive curing agent dosage is very big, broad prospects.

3. Look from manufacturing technology, has the following trends

1) modification technology is green at Manila, is increasingly widely used, such as: fat amine modified; 4 - fragrant amine modified (especially m-phenylene diamine, between benzene dimethylamine modification); Acid with modification and liquid; Dicyandiamide modified and liquid (our country recent years for liquid dicyandiamide demand of about 1000 tons). Imidazole modification and liquid, and the modification of low molecular weight poly cool amine.

(2) in compound with efficiency and unitized technology. The toxicity, environmental protection laws and regulations, such as cost, efficiency factors, more difficulties in the development of a new structure of curing agent, through the distribution of load and improve the efficiency of the increasingly become an effective way to develop new curing agent.

(3) solid solidification liu liquid technology is very promising, such as temperature and solid acid anhydride, dicyandiamide by modified to make it to a liquid at room temperature, not only can improve the operation and use of performance, but also save energy.

(4) curing agent production and packaging of fine operation.




Chinese name: Diethyl toluene diamine(DETDA)

Physical and chemical properties: light yellow transparent liquid, slightly soluble in water, soluble in alcohols, ethers, ketones and other polar organic solvents, and polyether, polyester polyol compatibility.
Density 1.022

Viscosity (20 ℃) ??mPa·ss290±10

Pour Point ℃-9

Boiling point of310°C

Flash Point°C161.1°C


4. The power of the development of curing agent, user and market pull

(1) the user puts forward higher and newer requirements on curing agent, such as: 1) using absolutely safe and reliable, to adapt to global environmental, health and safety trend; 2) the application effect is significantly improved, excellent quality is outstanding; 3) use, greatly convenient; 4) price/quality ratio is appropriate, cost - effectiveness of balance, is willing to buy and use; 5) high purification and transparent.

(2) the seriation, specialty, form a complete set to change, the fine development.

(3) in accord with environmental protection laws and regulations and meet user demand under the premise of continuously reduce cost and achieve higher profits is the long-term task of curing agent manufacturer.

Users to form a partnership (4) curing agent factory and hardener, curing agent enterprise success is the only way.

5. From the perspective of the market competition and development strategy has been following the trend

(1) pay attention to cultivate high-quality comprehensive firming agent research and development personnel; (2) curing agent factory technical transformation and new product development active; (3) to strengthen scientific research and a production, application research and development management system; (4) strengthen the protection of intellectual property rights; (5). With the development of epoxy resin, promote each other.

Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd 

Diethyl toluene diamine(DETDA)  http://www.yaruichem.com