Ten years of sharpening a sword: Developing an environmentally friendly catalyst to replace mercury catalyst polyurethane elastomer

Contact mobile phone: 18620028899 Wang Total
(When contacting me, please inform me from PU Juyitang)
WeChat account: gzyourun QQ: 1405640553
Advantages of alternative mercury catalyst polyurethane elastomer environmental protection catalyst
Guangzhou Yourun Synthetic Materials Co., Ltd. has developed an alternative mercury-catalyzed polyurethane elastomer environmental protection catalyst. The main advantages are: insensitivity to water, excellent manufacturability, and environmental protection.
Not sensitive to water
Plainly speaking, when producing polyurethane elastomers and other products, foaming, bulging, cracking, scars, pitting and other undesirable phenomena are prone to occur. The root cause of these adverse phenomena is the trace moisture in the raw materials, including the moisture in the air. Reacts with TDI/MDI to generate carbon dioxide, and the commonly used organic amine tin catalyst has a strong catalytic effect on the reaction between water and TDI/MDI. Even if the dehydration measures are done well, it is difficult to avoid the above-mentioned bubble defects. . However, CUCAT series catalysts can effectively shield or inhibit the reaction between trace amounts of water mixed in polyurethane raw materials and isocyanate, and avoid the resulting carbon dioxide, thereby achieving a non-foaming effect. This feature is very similar to organic mercury catalysts. The water suppression effect of CUCAT series catalysts is 3-5 times that of ordinary organic bismuth. Ordinary organic bismuth is only slightly better than tin amines, which are very easy to foam catalysts, but they are still sensitive to moisture and easy to foam when used in elastomers.

Excellent workmanship
Ensure that the composite material maintains low viscosity and fluidity before mixing evenly, which is very important to reduce the mechanical stirring bubbles generated by mixing and quickly fill the mold cavity; the high catalytic efficiency makes the composite material in as little as 10 minutes after the completion of mixing (or even shorter) to achieve the strength required for demoulding. If the process permits, it can be cured at room temperature without subsequent heating vulcanization. It is a typical low energy consumption and high efficiency. The use of CUCAT catalysts to produce elastomers is better than the traditional high temperature melting MOCA process. It can save more than 50% of the energy cost, and the process is simpler and the formula is more flexible.

Environmental Features
It does not contain eight heavy metals, azo, phthalates and other toxic ingredients. The polyurethane material synthesized by CUCAT series environmental protection catalysts can pass strict environmental protection regulations such as the ROHS directive of the United States and the European Union. It is an ideal substitute for eliminating catalysts such as toxic organic mercury and lead.
Our CUCAT catalysts are a series of products, targeted to replace organic mercury with different catalysts according to the characteristics of different reaction systems such as MDI/TDI, amine/alcohol, etc.

Environmentally friendly catalysts have an advantage in terms of price
The organomercury catalyst is not sensitive to moisture because it is an imported product and its highly toxic production and transportation are restricted. The current price is more than RMB 1000 per kilogram, but because of its unique water insensitivity and excellent catalytic effect, many factories complain Unbearable, still struggling to use. But now foreign factories have stopped production and are facing a crisis of out of stock; the domestic market generally has organic bismuth, about RMB 200 per kilogram, but it is difficult to solve the problem of foaming. And we replace the organic mercury non-foaming CUCAT series catalysts with environmental protection and no out-of-stock situation. The price is only RMB100-400. Many friends say that our price is low, but our U-run company refuses to make huge profits because of the reasonable price. It is conducive to the healthy and long-term development of the polyurethane market.

Environmental Catalyst Customer Response is Very Good
Many customers say that a small catalyst has solved their problems for many years, especially the replacement of mercury catalysts has indeed been recognized. In addition to some very regular customers, there are two kinds of customers that are very interesting:

One is that our catalyst has solved technical problems for them. It may be out of confidentiality. Every time an order is placed, it is specially instructed not to use the outer packaging of Urun, and not to have any logo of our Urun company. Use their assigned names. Another type of customer is a relatively large company. When they hear such a product, their first reaction is to be surprised and skeptical. They usually ask “Is it? Is it possible?” But after a trial, they are very happy. Because it does help the product.

Disadvantages of traditional polyurethane elastomer catalysts
Traditional elastomeric catalysts are organoamine tin bismuth and organomercury lead. The disadvantages of organic amine tin-bismuth have been mentioned above, which is the problem of easy foaming. Of course, the use of tin is also restricted; organic mercury lead is very toxic, and it has been basically abandoned by most manufacturers in recent years, but because of its excellent catalytic activity and process performance, it will still be used. Some industries and some manufacturers use it. For example, organic lead catalysts are used to produce polyurethane runways. Due to insufficient catalytic activity and inappropriate organic lead carriers, various chemical components in the runway do not react completely and produce odors. Dissolved organic lead is mixed. The volatile solvents are even more pungent and lingering. Especially if the runway is laid in a place with poor ventilation, there will still be peculiar smell after one year in severe cases. And as we all do product development, we all know that many products produced with organic mercury cannot be exported because they cannot meet the requirements for environmental protection.

Introduction to R&D company Guangzhou Yourun Synthetic Materials
Guangzhou Yourun Synthetic Materials Co., Ltd. is a company dedicated to all kinds of non-foaming catalysts (shielding or inhibiting the reaction of water and isocyanate) required in the field of polyurethane CASE (polyurethane coatings, adhesives, sealants, elastomers) It is a scientific research and production enterprise for the development and application of casting polyurethane elastomers for special applications. The main personnel of the company are composed of senior researchers and front-line technical application engineers who have worked in the polyurethane field for many years, relying on the technical advantages and rich experience in the field of professional polyurethane CASE , to provide catalysts, special additives, composite materials and other products as well as technical guidance and differentiated technical solutions for manufacturers of various polyurethane elastomers (including sealants, adhesives, and coatings).

Want to learn more about Guangzhou Yourun Enterprise?
Contact mobile phone: 18620028899 Mr. Wang
(When contacting me, please inform me from PU Juyitang)
WeChat ID: gzyourun QQ: 1405640553
URL: www.gzyourun.com

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