search.noResults

search.searching

dataCollection.invalidEmail
note.createNoteMessage

search.noResults

search.searching

orderForm.title

orderForm.productCode
orderForm.description
orderForm.quantity
orderForm.itemPrice
orderForm.price
orderForm.totalPrice
orderForm.deliveryDetails.billingAddress
orderForm.deliveryDetails.deliveryAddress
orderForm.noItems
Lube-Tech PUBLISHED BY LUBE: THE EUROPEAN LUBRICANTS INDUSTRY MAGAZINE Liwen Wei, President & CTO of Novitas Chem Solutions


Abstract - The concept and use of pre-form polyurea grease thickener (PUGT) is not new and has been sought for in the industry for decades. However, it has met with failures and commercial difficulties while trying to make a reliable and high quality polyurea grease. This paper discloses a new and well-defined type of PUGT thickener with markedly improved consistency and thickening efficiency that allows grade two polyurea grease to be made at dosage as low as 6%. The grease conversion process is carried out via simple heating/mixing of the PUGT powder with a variety of base oils. This simplicity and the ease in handling and processing is indeed a quantum leap in the manufacturing of polyurea grease that is traditionally made via in-situ method involving the handling of toxic substances such as Methylene Diphenyl Diisocyanate (MDI) or Toluene Diisocyanate (TDI) and hazardous amines, that is particularly troublesome for grease plants that are not equipped to manage such a difficult chemistry. We expect the consistency and well-defined nature of PUGT as described shall offer the opportunity and flexibility in the creation of new and robust polyurea grease compositions.


Introduction The recent surge in the demand for electrical vehicles (EV) and thus the concerns over the availability of


18 LUBE MAGAZINE NO.158 AUGUST 2020


Lithium has alarmed the grease industry. Today EV sales have reached 2 million units (Reference 1). In order to reach 2°C temperature reduction by 2040, International Energy Agency (IEA) projects 600 million EVs would be required. That equates to 7 million tons of Lithium requirement which is almost half of the known world Lithium reserve – 16 million tons according to the United States Geological Survey (USGS).


Much is unknown. Will technology advances such as recyclable batteries, easier/cheaper mining, or alternative battery technologies help us to reach this EV target? The escalated prices (Figure 1) and rapid change in Lithium market demand (Figure 2, 11% to 8% for grease) have the grease industry on the lookout for alternatives.


No.129 page 1


Quantum Leap in the manufacturing of polyurea grease (PUG)


Figure 1: Global Lithium prices.


Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36  |  Page 37  |  Page 38  |  Page 39  |  Page 40