Basalt fibers applied to epoxy prepreg and production method of basalt fibers

A technology of basalt fiber and production method, which is applied in the field of fiber production, can solve the problems of lower production efficiency, degumming of epoxy prepreg, slow development of sizing agent, etc., and achieve the goal of improving film forming performance, good winding performance and reducing wear Effect

Inactive Publication Date: 2018-09-28
ZHEJIANG GBF BASALT FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production process of basalt fiber is not yet mature, especially the development of sizing agent for surface treatment of basalt fiber is slow, resulting in a slow bonding speed between basalt fiber and resin matrix, and local degumming is prone to occur during the production of epoxy prepreg, reducing production efficiency, and Affect the quality and appearance of the final product

Method used

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  • Basalt fibers applied to epoxy prepreg and production method of basalt fibers
  • Basalt fibers applied to epoxy prepreg and production method of basalt fibers
  • Basalt fibers applied to epoxy prepreg and production method of basalt fibers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A production method of basalt fiber applied to epoxy prepreg, the steps are as follows: ① Grinding basalt ore into 500-mesh powder. ② When charging the stove, add 5kg of the powder every 10 minutes. ③For wire drawing, use a 600-hole furnace, set the flow rate to 20kg / h, and set the head speed to 2000 rpm, which can draw basalt fibers of 16 microns and 325tex. ④ Treat the surface of the basalt fiber with a sizing agent of a specific formula, and the sizing agent formula is:

[0032] Silane coupling agent with brand KH560: 0.3kg;

[0033] E51 bisphenol A epoxy resin emulsion: 6.0kg;

[0034] Cationic epoxy resin emulsion with brand NBR-290: 0.3kg;

[0035] Zwitterionic surfactant with brand NBR-1070: 0.5kg;

[0036] Deionized water: 92.9kg.

[0037] ⑤ To dry the yarn, raise the temperature from normal temperature to 95°C, heat it up to 125°C after 2 hours of heat preservation, and cool it to room temperature after 3 hours of heat preservation. 6. Winding, set the dr...

Embodiment 2

[0042] A production method of basalt fiber applied to epoxy prepreg, the steps are as follows: ① Grinding basalt ore into 100-mesh powder. ② When charging the stove, add 7kg of the powder every 20 minutes. ③For wire drawing, use a 600-hole furnace, set the flow rate to 28kg / h, and set the head speed to 2800 rpm, which can draw basalt fibers of 16 microns and 325tex. ④ Treat the surface of the basalt fiber with a sizing agent of a specific formula, and the sizing agent formula is:

[0043] Silane coupling agent with brand KH560: 0.8kg;

[0044] E51 bisphenol A epoxy resin emulsion: 4kg;

[0045] Cationic epoxy resin emulsion with brand NBR-290: 0.1kg;

[0046] The brand is the zwitterionic surfactant of NBR-1070: 1.0kg;

[0047] Deionized water: 94.1kg.

[0048] ⑤ To dry yarn, raise the temperature from normal temperature to 90°C, heat it up to 120°C after 2 hours of heat preservation, and cool it to room temperature after 3 hours of heat preservation, with a temperature r...

Embodiment 3

[0052]A production method of basalt fiber applied to epoxy prepreg, the steps are as follows: ① Grinding basalt ore into 1000 mesh powder. ② When charging the stove, add 6kg of the powder every 15 minutes. ③For wire drawing, use an 800-hole hearth, set the flow rate to 24kg / h, and set the head speed to 3000 rpm, which can draw basalt fibers of 13 microns and 264tex. ④ Treat the surface of the basalt fiber with a sizing agent of a specific formula, and the sizing agent formula is:

[0053] KH560: 0.5kg;

[0054] E44 emulsion: 8.0kg;

[0055] NBR-290 (manufacturer Sinoma Science and Technology Special Fiber Division): 0.5kg;

[0056] Zwitterionic surfactant with brand name NBR-1070: 0.8kg;

[0057] Deionized water: 90.2kg.

[0058] ⑤ To dry the yarn, raise the temperature from normal temperature to 100°C, heat it for 3 hours, then heat it up to 140°C, hold it for 2 hours, and cool it to room temperature. 6. Winding, set the drum speed to be 7000 rpm, so that two strands of...

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Abstract

The invention provides basalt fibers applied to an epoxy prepreg and a production method of the basalt fibers, and belongs to the technical field of fiber production. The production method comprises the following steps: A, pretreatment: grinding basalt ores into basalt ore powder for standby application, and during feeding of a furnace stage, adding a certain quantity of the basalt ore powder at regular intervals, so that the basalt ore powder added per hour corresponds to a flow of a leakage plate; B, wire drawing: setting the flow of the leakage plate to correspond to yield of the furnace stage to obtain the basalt fibers; C, immersion: immersing the basalt fibers obtained in the step B with an immersion agent; D, yarn drying: adopting a temperature curve to bake the immersed basalt fibers to enable the immersion agent to be adhered to the surfaces of the basalt fibers thoroughly; and E, winding: enabling a plurality of basalt fibers to be stranded. The basalt fibers provided by theinvention can be rapidly combined with epoxy resin, and also have good wire drawing performance, winding performance, weaving performance and stable linear density.

Description

technical field [0001] The invention belongs to the technical field of fiber production, and relates to a basalt fiber applied to epoxy prepreg and a production method thereof. Background technique [0002] Most current advanced composite products are made from prepregs. Prepreg is a resin matrix impregnated with continuous fibers or fabrics under strictly controlled conditions to make a composition of resin matrix and reinforcement, and is an intermediate material for composite materials. Among them, epoxy resin is one of the commonly used resin matrices. Compared with other resins, it has many advantages such as convenient curing, strong adhesion, low shrinkage rate, and chemical stability. It is widely used in automobiles, ships, and marine industries. Power electronics, aerospace fields, etc. [0003] Basalt fiber is one of the reinforcements commonly used in prepregs. It has excellent physical and chemical properties, good thermal insulation and sound absorption, weat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C13/06C03C25/40C03C25/36C03C25/465D02G3/16D06B15/00
CPCC03C13/06C03C25/36C03C25/40C03C25/465D02G3/16D06B15/00D10B2101/02
Inventor 金鑫霞胡朝康许加阳王国才黄兴明
Owner ZHEJIANG GBF BASALT FIBER
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