Лако-красочные материалы — производство

A disadvantage of many acrylic adhesive products on the market today is that those that require mixing may require an awkward mix ratio. The first generation products, for instance, generally required a mix of 20 parts adhesive to 1 part curing agent, making highly automated production very difficult to achieve effectively. As the various genera­tions of acrylics have emerged, more convenient mix combinations also have been intro­duced; first 10 to 1, then 4 to 1 variants, then 2 to 1, and even certain products with 1 to 1. Recently true equal-mix products have emerged, and even products that do not require significant mixing at all have come to the market.

The no-mix or honeymoon type acrylic adhesives are unique in that polymerization is adequately achieved after the A component of the adhesive is applied to one substrate to be bonded, and the B component is applied to the other substrate to be bonded. When these two halves are joined together, as shown in Fig. 6 previously, enough free radicals are generated to initiate and complete the cure. The no-mix technology is unique in that it has found extensive use in the electronics industry, and is a very useful technique in bonding magnets for electrical motors where the fast cure and easy application technique have found extensive utility.