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High-strength basalt fibre reinforced nylon composition and preparation method thereof

A basalt fiber and high-strength technology is applied in the field of high-strength basalt fiber reinforced nylon compositions and their preparation, which can solve the problems that glass fiber reinforced nylon materials cannot fully meet the use requirements, and achieves reduction of notch sensitivity, expansion of application scope, The effect of improving impact strength

Inactive Publication Date: 2008-07-30
SHENZHEN KEJU NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for special application environments such as military industry, navigation, and aviation, glass fiber reinforced nylon materials cannot fully meet the requirements of use.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0025] The invention provides a high-strength basalt fiber reinforced nylon composition and its preparation method, a: weigh nylon and other additives according to the weight ratio; b: put the weighed raw materials into a high-speed mixer and dry mix them for 3-5 minutes ; c: put the mixed raw materials in b into the hopper of the twin-screw extruder, melt and extrude, and granulate. The processing technology is as follows: twin-screw extruder, the temperature of the first zone is 230-270°C, the temperature of the second zone is 230-270°C, the temperature of the third zone is 240-290°C, the temperature of the fourth zone is 250-280°C, the head is 260-300°C, the basalt continuous The fiber is added through the fiberizing port, the residence time is 2-3min, and the pressure is 12-18MPa.

[0026] For the convenience of further understanding of the present invention, now in conjunction with specific embodiment the present invention is described in detail:

Embodiment 1

[0028] Weigh PA6 60%, LLDPE-g-MAH 10%, KH-550 3%, antioxidant 1010 1%, and other additives 1.5% by weight. Put the mixed material into the hopper of the twin-screw extruder, add the basalt fiber through the fiber adding port, control the fiber content to 24.5%, mix for 3-5 minutes, melt and blend, extrude and granulate to form a composite material. Among them, the temperature settings of each heating zone of the screw are: zone 1 temperature: 230°C; zone 2: 230°C; zone 3: 250°C; zone 4: 250°C; head: 260°C; residence time 2-3min. The pressure is 15MPa.

Embodiment 2

[0030] Weigh PA6 50%, LLDPE-g-MAH 10%, KH-570 3%, antioxidant 1010 1%, and other additives 1.5% by weight. Put the mixed material into the hopper of the twin-screw extruder, add the basalt fiber through the fiber adding port, control the fiber content to 34.5%, mix for 3-5 minutes, melt and blend, extrude and granulate to form a composite material. Among them, the temperature settings of each heating zone of the screw are: zone 1 temperature: 230°C; zone 2: 230°C; zone 3: 250°C; zone 4: 250°C; head: 260°C; residence time 2-3min. The pressure is 15MPa.

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PUM

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Abstract

The invention discloses high strength basalt fiber reinforcing nylon composition, which comprises the following components and contents (parts by weight): 50-70 percent of nylon, 20-40 percent of basalt fiber, 3-12 percent of toughening agent, 1-5 percent of antioxidant, 0.3-1 percent of coupling agent and 0-15 percent of other accessory ingredient. Compared with the common glass fiber reinforcing nylon composition in the present market, the high strength basalt fiber reinforcing nylon composition has the advantages of high intensity, high impact strength and good temperature resistance, etc.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a high-strength basalt fiber reinforced nylon composition and a preparation method thereof. Background technique [0002] Nylon (PA) has high mechanical strength, high softening point, heat resistance, low friction coefficient, wear resistance, self-lubrication, outstanding shock absorption and noise reduction, oil resistance, weak acid resistance, alkali resistance and general solvents, electrical insulation Good performance, self-extinguishing, non-toxic, odorless, good weather resistance, easy to dye and many other characteristics, widely used in various fields of society. However, the obvious disadvantage of nylon material is its strong water absorption, which affects the dimensional stability of the product. In order to further improve the mechanical properties of nylon materials and reduce the molding shrinkage of products, manufacturers usually use glass fibers ...

Claims

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Application Information

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IPC IPC(8): C08L77/02C08L77/06C08K7/04B29C47/40B29C47/92B29C70/04C08L51/06B29C48/40B29C48/92
CPCB29C47/92B29C48/92B29C2948/92704B29C48/04B29C48/40B29C48/9185B29C2948/92895B29C2948/92904
Inventor 徐东贺永张世杰
Owner SHENZHEN KEJU NEW MATERIAL
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