Rubber to rubber bonding can be categorized into three types!
First, unvulcanized rubber and end vulcanized rubber bonding
The bonding between the end vulcanized rubber in the rubber adhesive products processing and manufacturing process, parts and components of each other bonding and lamination is extremely common. Unvulcanized rubber bonding between the general use of hot bonding method, because the rubber in the hot lamination generally have better adhesive properties, half of the calendering and pressing out process can be used to hot lamination will be rubber parts combined together. Bonding at room temperature conditions, it is necessary to use solvents to brush the adhesive bonding surface of the adhesive to remove surface impurities, to ensure the bonding effect. Adhesives with too poor bonding properties must also be coated with adhesive before bonding.
Second, unvulcanized adhesive and vulcanized adhesive bonding
Unvulcanized rubber and vulcanized rubber bonding between the bonding technology is used for tire retreading, capsule repair and the manufacture of certain rubber products. Adhesive, first of all, the surface of the vulcanized rubber treatment, such as mechanical Ting grinding, chemical treatment, and then wash with solvents. After drying, brush adhesive, dry paste end vulcanized film heating vulcanization, to achieve the purpose of bonding. Adhesive should be adhered to the vulcanized adhesive and the end of vulcanized adhesive glue species and properties of the preparation.
Third, vulcanized rubber and vulcanized rubber bonding
Lift between the vulcanized rubber vulcanized rubber bonding, than the end of the vulcanized rubber bonding to be much more difficult, because after crosslinking of the rubber molecular chain is difficult to diffuse, penetration, greatly reducing the interface between the molecules of the contact opportunities, and due to the vulcanization of the rubber molecular chain of the activity of the Palace Energy Group is reduced, the interface molecules asked to produce further chemical bonding opportunities have also been reduced. In addition, the rubber formulation of plasticizers and other certain components are easy to migrate precipitation to the surface, will also affect the interface between the molecules of good contact. These factors are not conducive to the formation of the transition layer of the bonding interface, thus affecting the bonding.
Copyright © 2024 Henan Xuannuo Chemical Co., Ltd All rights reserved