阅读说明：本技术 聚酮纤维及其制造和用途 (Polyketone fibres, their production and use ) 是由 A·H·费舍尔 P·海克恩伯纳 B·努吉尔格 于 2018-05-18 设计创作，主要内容包括：描述了熔融纺丝纤维,所述纤维包含热塑性脂肪族聚酮作为第一聚合物以及所选的聚合物型组分作为第二聚合物。所述纤维的独特之处在于优异的机械性能,如良好的弯曲恢复性、非常良好的滑动性能、高耐水解性以及高耐磨性。(Melt spun fibers comprising a thermoplastic aliphatic polyketone as a first polymer and a selected polymeric component as a second polymer are described. The fibers are unique in excellent mechanical properties such as good bend recovery, very good sliding properties, high hydrolysis resistance and high abrasion resistance.)

1. Melt spun fibers comprising a thermoplastic aliphatic polyketone as a first polymer and a polyolefin, a polyester, a polyurethane, a polyphenylene sulfide, a polyphenylsulfone, a polyphenylene ether, a polyphenylene ketone, a polyphenylene ether ketone, a liquid crystal polymer and/or an aliphatic polyketone as a second polymer, wherein in case the aliphatic polyketone is present as the second polymer, its melting point is at least 5 ℃ higher than the melting point of the aliphatic polyketone of the first polymer.

2. Melt-spun fibers comprising a thermoplastic aliphatic polyketone as a first polymer and a polyolefin, a polyester, a polyamide, polyoxymethylene, a polyurethane, polyphenylene sulfide, polyphenylsulfone, polyphenylene ether, polyphenylene ketone, polyphenylene ether ketone, a liquid crystal polymer and/or an aliphatic polyketone as a second polymer, wherein the polymers are present in the form of two or more fiber components which are spatially separated from one another but arranged in relation to one another, and wherein the melting point of the aliphatic polyketone is at least 5 ℃ higher than the melting point of the aliphatic polyketone of the first polymer for the case comprising an aliphatic polyketone as a second polymer.

3. Melt-spun fibers comprising a thermoplastic aliphatic polyketone as a matrix polymer and polysiloxane or poly (meth) acrylate particles dispersed therein.

4. Melt-spun fibre according to one of the claims 1 to 3, characterised in that the thermoplastic aliphatic polyketone is an ethylene/propylene/CO-terpolymer.

5. Melt spun fiber according to at least one of claims 1 to 4, characterized in that the fiber comprises an antioxidant, preferably a sterically hindered phenol, optionally in combination with a co-stabilizer.

6. A melt-spun fiber according to one of the claims 1 or 2, characterized in that the polyester is a homopolymer or a copolymer of an aromatic-aliphatic polyester, in particular a polyethylene terephthalate homopolymer or a copolymer comprising ethylene terephthalate units.

7. A melt-spun fiber according to any of claims 1 or 2, wherein the polyester is a polycarbonate.

8. The melt spun fiber according to at least one of claims 1 or 4 to 7, characterized in that the first polymer and the second polymer are present as a polymer mixture, wherein one of the polymers forms a matrix and the other polymer is dispersed in the matrix in the form of fibrils.

9. The melt-spun fiber according to claim 8, wherein the fiber is present as an island-in-the-sea fiber in which the polymer component is arranged in the form of fibrils in the polymeric matrix component.

10. Melt-spun fibers according to at least one of claims 2 or 4 to 7, characterized in that the fibers are present as core-shell fibers having a shell consisting of aliphatic polyketone and a core consisting of polyolefin, polyester, polyamide, polyoxymethylene, polyurethane, polyphenylene sulfide, polyphenylsulfone, polyphenylene ether, polyphenylketone, liquid crystal polymer and/or further aliphatic polyketone.

11. A melt-spun fiber according to claim 10, characterized in that the fiber is present as a core-shell fiber having a shell consisting of aliphatic polyketone and a core consisting of polyester, polyphenylene sulfide, polyphenylene ether, polyphenylketone, polyphenylketoneketone or another aliphatic polyketone.

12. A melt-spun fibre according to claim 2, characterised in that the fibre is present as side-by-side fibre having a fibre portion consisting of aliphatic polyketone and a further fibre portion in contact with the fibre portion consisting of polyolefin, polyester, polyamide, polyoxymethylene, polyphenylene sulphide, polyphenylsulfone, polyphenylene oxide, polyphenylene ether ketone, liquid crystal polymer and/or a further aliphatic polyketone.

13. A melt-spun fiber according to claim 12, characterized in that the fiber is present as a side-by-side fiber having a fiber portion composed of aliphatic polyketone and another fiber portion composed of polyester, polyphenylene sulfide, polyphenylene ether, polyphenylene ketone or polyphenylene ether ketone in contact with the fiber portion.

14. Melt-spun fiber according to at least one of claims 2 or 4 to 7 or 10 to 11, characterized in that the fiber is constituted as a core-shell fiber comprising a shell consisting of a thermoplastic ethylene-/propylene-/CO-terpolymer and a core consisting of a polyolefin, a polyester, a polyamide, a polyoxymethylene, a polyphenylene sulfide, a polyphenylsulfone, a polyphenylene ether, a polyphenylene ketone, a polyphenylene ether ketone, a liquid crystal polymer and/or a further aliphatic polyketone, wherein the amount of the shell is 5 to 50 wt. -% and the amount of the core is 95 to 5 wt. -%, and wherein the core and/or the shell optionally may further comprise additives, in particular sterically hindered phenols, UV stabilizers, pigments, dyes, fillers, matting agents, crosslinking agents, crystallization accelerators, in total up to 10 wt. -% Lubricants, flame retardants, antistatic agents, hydrolytic stabilizers, plasticizers, impact modifiers and/or fluoropolymers, wherein the percentage values are relative to the total amount of the fibers.

15. Melt spun fiber according to at least one of claims 1 to 14, wherein the fiber is present as a monofilament in the form of continuous or chopped and assembled bundles or as a brush.

16. Textile planar structure comprising melt spun fibers according to at least one of claims 1 to 15 in the form of a woven, hook, knit or gauze.

17. Use of the melt spun fiber according to at least one of claims 1 to 15 for screen fabrics, filter cloths for gas and liquid filters, for processing and drying belts and for brushes of any type for cleaning purposes.

18. Use according to claim 17, characterized in that the melt spun fibres are used as a fluidising belt, as a processing belt for the cardboard industry, as a conveyor belt and as a processing belt in the manufacture of non-woven fabrics.

19. Use according to claim 17, wherein the melt spun fibres are used in brushes for household cleaning purposes or in brushes for body cleaning, in particular toothbrushes.

20. Use according to claim 17, wherein the melt spun fibres are used as chopped fibres for concrete and composite reinforcement layers.

21. Use according to claim 17, characterized in that the melt spun fibres are used in monofilament form as felt for paper machines, in conveyor belts and in filter screens.

22. Use according to claim 17, characterized in that the melt spun fibres are used in the form of bristles in brushes, in particular toothbrushes.

Example 1

A combination of two commercially available aliphatic polyketones: one high melting polyketone in the core (Hyosung model M630A) and one low melting polyketone in the shell (Hyosung model M410F).

To produce such bicomponent monofilaments, the two components are coextruded in one production step. The core/shell ratio, here 70/30, can be set by the relative transport rate. In the process, the monofilament is stretched several times under the effect of temperature. The total draw ratio was chosen to be 1: 3.7.

By the above process bicomponent monofilaments are obtained with the following properties:

combining these two polyketone variants in a monofilament allows for thermally induced physical attachment at the monofilament intersection. The textile structure thus has, for example, an increased shear stability. In addition, such crosslinked structures show thickening at the intersection points. Due to the positive flow properties, this property is of interest, for example, for liquid filtration.