Solvent-free epoxy coating crosslinking agent

Solvent-free epoxy coating crosslinking agent,More stringent environmental, health and safety laws and regulations, and the increasing demand for green products is to promote the development of sustainable coating. The paint industry adopted various methods to improve the sustainable development.

In the past few years, the trend of low VOC emissions, solvent coating has from a solid system to a high solids system and solvent-free coating or technological change. As long as possible, to provide good performance of renewable raw materials are replacing petroleum chemical products. In addition the production of environmentally friendly coatings product durability, energy saving technology and transportation are considered.

To low VOC epoxy coating is not without its problems, and in many cases costs will increase. Coating formulation designer need to limit the use of or restrict the use of solvents, to reduce viscosity and maintain good wettability and flow flat performance. For the traditional spraying equipment, if the viscosity is not low, you need to use the pressure equipment for coating or heat. This will increase the cost and complexity of the construction.

In addition, in order to obtain low VOC epoxy coating, it is common practice is to use liquid solventless epoxy resin to completely or partly replace solvent-based solid epoxy resin, resin viscosity is higher, usually need to use thinner to reduce the viscosity. We know that the diluents, especially not reactive diluent, usually affect the corrosion resistance.

Based on these problems, some of VOC thinner now is considered to be focused on the material, and in some formula being phased out. In the end, only a limited amount of crosslinking agent on the market is a low viscosity, excluding benzyl alcohol and solvent, and can provide excellent corrosion protection performance and the application of the construction period. This article introduced the crosslinking agent, able to make available conventional spraying equipment and construction of high performance and solvent-free epoxy coating.

Use of renewable raw materials can reduce the depletion sexual resources such as petroleum products, the dependence of this is coating manufacturers to improve the product's overall sustainability another way. However, with reliable performance, consistent quality and cost competitiveness of renewable raw materials of choice is limited.




Chinese name: Diethyl toluene diamine(DETDA)

Diethyltoluenediamine Uses:

The product is identical to Ethancure 100 and Lonza DETDA 80, DETDA is very effective polyurethane elastomer chain extender; also be used as polyurethane and epoxy resin curing agent, epoxy resin of an antioxidant, industrial oils and lubricants . In addition, also as intermediates in organic synthesis.Especially for the RIM (reaction injection molding), is important in the field of spray polyurea chain extender species. Also can be used for casting polyurethane elastomer (CPU) and a curing agent, epoxy curing agent, epoxy resin of antioxidants, lubricants and industrial oils other antioxidants.


Unlike most renewable materials choice, in chemical and coating industries, cashew shell oil (CNSL) modified products has a long history of success. Cashew shell oil is found in the cellular structure of cashew nut shell of a kind of renewable resources, the food chain, it is considered to be a byproduct of cashew nut industry.

Cashew shell oil derivatives and many are in the world, they have the consistent quality and performance, and compared with petroleum raw materials, in terms of cost competitive. LITE 3060 is a high content of biological cashew shell oil modified crosslinking agent.

LITE 3060 is the latest development of cashew shell oil phenolic amides, formula can help the designer to meet restrictions on VOC emissions of new regulatory requirements, improve the working environment, support the sustainable development of enterprise. LITE 3060 is based on the technology of cashew shell oil phenolic amides, a new cashew shell oil epoxy crosslinking agent, designed to reduce gap between polyamide and cashew phenol modified amine chemicals.

Through the combination of these techniques for chemical, cashew nut shell oil phenolic amides products can provide the advantages of two kinds of material and reduce the limitations at the same time.

Cashew shell oil phenolic amides based coating formula has the required color stability of polyamide, painting range and flexibility, but has more excellent anticorrosive performance, fast, low temperature crosslinking and not fussy mix proportion and cashew phenol modified amine and high biological content. The balance of these performance makes it become the main various application fields all the year round use crosslinking agent, such as Marine coatings, industrial protection coating and adhesive for building and structure.

Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd 

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