Polypropylene fibre for reinforcing cement

Details Polypropylene fibre for reinforcing cement Polypropylene fibre for reinforcing cement

D - Textiles, Paper

01

F

D01F 6/06 (2006.01) C04B 16/06 (2006.01) D06M 13/292 (2006.01)

Patent

CA 2077395

The invention relates to cement articles, having excellent bending strength and Charpy impact strength. The cement articles are manufactured with an extremely strong polypropylene fibre having good dispersion. The extremely strong fibre which is made of the polypropylene fibre has a narrow molecular weight distribution and a high stereoregularity and is drawn at a high temperture and treated with normal alkylphosphate alkaline metal salt. The extremely strong polypropylene fibre is a drawn thread of highly crystalline polypropylene having Q<5, 97<HI<100, 94<IPF<100, with Q being the ratio of weight average molecular weight to number-average molecular weight, HI being the insoluble content of boiling n-heptane in wt% and IPF being the isotactic pentad fraction in mol%. The fibre comprises from 0.05 % to 10 wt% of alkylphosphate alkaline metal salt and has strong breakage strength, greater than 6 g/denier.

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