阅读说明：本技术 使用杂化多元醇制备纤维复合材料的方法 (Method for producing fiber composites using hybrid polyols ) 是由 A·埃姆格 S·扎巴克史 B·埃林 A·迈耶 于 2018-06-07 设计创作，主要内容包括：本发明涉及一种制备纤维复合材料的方法,包括：将异氰酸酯组分A和多元醇组分B混合以得到反应混合物,使用该反应混合物浸渍纤维并使所浸渍的纤维固化,其中多元醇组分B含有脂肪基醇(i)和至少一种不为脂肪基醇的OH官能化合物(ii)的混合物的烷氧基化产物,所述OH官能化合物(ii)具有脂族键合的OH基团且OH官能度为2至4。本发明还涉及一种可通过这种方法获得的纤维复合材料,以及所述纤维复合材料作为桅杆的用途。(The invention relates to a method for producing a fiber composite, comprising: isocyanate component a and polyol component B are mixed to give a reaction mixture, the fibers are impregnated with this reaction mixture and the impregnated fibers are cured, wherein polyol component B contains the alkoxylation product of a mixture of an aliphatic alcohol (i) and at least one OH-functional compound (ii) which is not an aliphatic alcohol, which OH-functional compound (ii) has aliphatically bound OH groups and has an OH functionality of from 2 to 4. The invention also relates to a fibre composite material obtainable by such a method, and to the use of the fibre composite material as a mast.)

1. A method of making a fibrous composite comprising: isocyanate component a and polyol component B are mixed to give a reaction mixture, the fibers are impregnated with the reaction mixture and the impregnated fibers are cured, wherein polyol component B comprises the alkoxylation product of a mixture comprising at least one aliphatic alcohol (i) and at least one OH-functional compound (ii) which is not an aliphatic alcohol, which OH-functional compound (ii) has aliphatically bonded OH groups and an OH functionality of 2 to 4.

2. The process of claim 1, wherein alkoxylation is performed using a nucleophilic catalyst and/or a basic catalyst and at least one alkylene oxide to produce an alkoxylation product comprising a mixture of at least one aliphatic alcohol (i) and at least one OH functional compound (ii) that is not an aliphatic alcohol, wherein the OH functional compound (ii) has an aliphatically bound OH group and an OH functionality of 2 to 4.

3. The process of claim 1 or 2, wherein fatty alcohol (i) comprises castor oil.

4. The process of any one of claims 1 to 3, wherein the alkylene oxide comprises propylene oxide.

5. The process according to any one of claims 1 to 4, wherein the OH-functional compound (ii) contains 3 OH groups.

6. The process according to any one of claims 1 to 5, wherein the OH-functional compound (ii) is glycerol and/or trimethylolpropane.

7. The process according to any one of claims 1 to 6, wherein the alkoxylation product of a mixture of aliphatic alcohols (i) and at least one OH-functional compound (ii) having aliphatically bound OH groups and an OH functionality of 2 to 4 has an OH number of from 300 to 600mg KOH/g.

8. The process according to any one of claims 1 to 7, wherein the viscosity of the alkoxylation product of a mixture of aliphatic alcohols (i) and at least one OH-functional compound (ii) having aliphatically bound OH groups and an OH functionality of 2 to 4 is less than 1500, preferably 1200, particularly preferably 600 to 1000mPas, measured according to DIN 53019.

9. The process according to any one of claims 1 to 8, wherein the proportion of aliphatic alcohols (i) is from 10 to 90% by weight and the proportion of OH-functional compounds (ii) having aliphatically bound OH groups and an OH functionality of from 2 to 4 is from 90 to 10% by weight, each based on the total weight of components (i) and (ii).

10. A method according to any one of claims 1 to 9, wherein the fibres used are endless fibres of glass fibres or carbon fibres.

11. The method according to any one of claims 1 to 10, wherein the proportion of fibrous material is from 30 to 90% by weight, based on the total weight of the fibrous composite material.

12. The process according to any one of claims 1 to 11, wherein isocyanate component a comprises a mixture of monomeric diphenylmethane diisocyanate and higher core diphenylmethane diisocyanates.

13. A method according to any one of claims 1 to 12, wherein the impregnated fibres are wound up prior to curing.

14. A fibrous composite obtainable by the process according to any one of claims 1 to 13.

15. Use of the fiber composite according to claim 14 as a mast/pipe.