Fiber for fiber cement and resulting product
View Patent ↗A fiber-cement product which includes a treated cellulose wood pulp fiber. The fiber is treated with fibrillated carboxymethyl cellulose or a carboxyethyl cellulose and poly(diallyldimethyl ammonium)chloride. The fiber can be bleached or partially bleached, refined or unrefined or a mixture of refined and unrefined fiber.
1. A naturally cured fiber-cement product comprising cement and a treated cellulose wood pulp fiber, the fiber being treated with fibrillated carboxymethyl cellulose or a carboxyethyl cellulose with a low degree of substitution, DS of 0.01 to 0.45, and then with poly(diallyldimethyl ammonium)chloride.
2. The fiber-cement product of claim 1 in which the fiber is an unbleached fiber.
3. The fiber-cement product of claim 1 in which the fiber is a partially bleached fiber.
4. The fiber-cement product of claim 1 in which the fiber is an unrefined fiber.
5. The fiber-cement product of claim 1 in which the fiber is a refined fiber.
6. The fiber cement product of claim 1 in which the fiber is a mixture of refined and unrefined fiber.