| 摘要 |
A roll for a press section of a machine for making and/or finishing a fibrous web, such as a paper, board, or tissue machine, includes a roll body or roll shell and, disposed on the roll body or roll shell, a roll covering which has at least one functional layer which is suitable for entering into contact with the fibrous web or with a paper machine fabric. The functional layer is formed of a polymer which is a mixture of at least one prepolymer, a curing agent, a crosslinking agent, and an additive. The additive is selected from the following: perfluoropolyethers, bifunctional perfluoropolyether, or mixtures thereof. |
| 主权项 |
1. A roll for a press section of a machine for making and/or finishing a fibrous web, including a paper, board, or tissue machine, the roll comprising:
a roll body or roll shell; a roll covering disposed on said roll body or roll shell, said roll covering having at least one functional layer suitable for entering into contact with the fibrous web or with a paper machine fabric; said functional layer being formed of a polymer being a mixture of at least one of at least one prepolymer, at least one curing agent or at least one crosslinking agent, and at least one additive; and said at least one additive being selected from the group consisting of perfluoropolyether, bifunctional perfluoropolyether and mixtures of perfluoropolyether and bifunctional perfluoropolyether. |
