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Strong and tough nylon composite material for high-speed rail sleeper firmware and preparation method thereof

A composite material, tough nylon technology, applied in the formulation of high-strength engineering plastics and its production, can solve the problems of heavy weight, high energy consumption, non-insulation, etc., and achieve the effects of easy molding, excellent performance and low cost

Inactive Publication Date: 2010-12-01
陈勇男
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Traditional railway sleeper fasteners are usually made of metal materials, which are heavy, high energy consumption, difficult to form and process, and often have problems such as climbing, low elasticity, and non-insulation. In the laying, use, and maintenance of modern high-speed railways, they are restricted and There are potential safety hazards and cannot meet the development needs of modern high-speed railways

Method used

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  • Strong and tough nylon composite material for high-speed rail sleeper firmware and preparation method thereof
  • Strong and tough nylon composite material for high-speed rail sleeper firmware and preparation method thereof
  • Strong and tough nylon composite material for high-speed rail sleeper firmware and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] According to a kind of strong and tough nylon composite engineering material with a weight of 45kg for high-speed rail sleeper, its components and composition (weight %) are calculated, and the component weight is taken:

[0029] A kind of strong, tough nylon composite material and preparation method thereof, its feature comprises the following steps:

[0030] Step 1: Mixing materials: This step is characterized by the following steps, including the following operations:

[0031] Operation 1: Weighing

[0032] 1. Weigh the liquid components in the formula: component 5) coupling agent 200ml for later use.

[0033] 2. Weighing materials: 1) 25 kg of nylon 66 EPR32 resin and 4) 5 kg of toughening agent (EPDM-g-MAH) for later use.

[0034] 3. Weigh the additive components: 2) nucleating agent, 6) antioxidant, 7) rheological agent, 8) whitening agent and 9) light stabilizer totaling 1.0 kg.

[0035] 4. Material preparation: Component 3) Reinforcing agent—alkali-free untwi...

Embodiment 2

[0041] According to a kind of strong, tough nylon composite engineering material that the high-speed rail sleeper firmness of 90kg is used, its component and composition (weight %) are calculated, and take component weight:

[0042] A kind of strong, tough nylon composite material and preparation method thereof, its feature comprises the following steps:

[0043] Step 1: Mixing materials: This step is characterized by the following steps, including the following operations:

[0044] Operation 1: Weighing

[0045] 1. Weigh the liquid components in the formula: component 5) coupling agent 400ml for later use.

[0046] 2. Weighing materials: component 1) 50 kg of nylon 66EPR27 resin, 8 kg of PA6 resin and component 4) 3 kg of toughening agent (POE-g-MAH) for use.

[0047] 3. Weigh the additive components: 2) nucleating agent, 6) antioxidant, 7) rheological agent, 8) whitening agent and 9) light stabilizer total - 2.8 kg.

[0048] 4. Material preparation: Component 3) Reinforci...

Embodiment 3

[0054] According to a kind of strong and tough nylon composite engineering material with a weight of 90kg, its component (weight) and composition (weight %) are calculated, and the component (weight) is weighed:

[0055] A kind of strong, tough nylon composite material and preparation method thereof, its feature comprises the following steps:

[0056] Step 1: Mixing materials;

[0057] This step is characterized by the following steps, including the following operations:

[0058] Operation 1: Weighing

[0059] 1. Weigh the liquid components in the formula: component 5) coupling agent 400ml for later use.

[0060] 2. Weighing materials: 1) 50 kg of nylon 66ST27 resin and 10 kg of PA6 resin for spare use.

[0061] 3. Weigh the additive components: 2) nucleating agent, 6) antioxidant, 7) rheological agent, 8) whitening agent and 9) light stabilizer totaling 2.8 kg.

[0062] 4. Material preparation: Component 3) Strengthening agent - alkali-free untwisted filament spare fish e...

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Abstract

The invention relates to a strong and tough nylon composite material for a high-speed rail sleeper firmware and a preparation method thereof, belonging to the field of organic high-molecular materials. The strong and tough nylon composite material is characterized by comprising the following raw materials and components (in percentage by weight) and is prepared according to the following steps of: adding a nucleating agent, a reinforcing agent, a coupling agent, a toughening agent, an antioxidant, a rheological agent and a brightening agent by using PA (Polyamide) 66 and PA6 or PA66 / PA6 as base materials; extruding with alkali-free glass fibres compositely through weighing, preparing, blending and melting at 250-280 DEG C; and granulating. The strong and tough nylon composite material is easy to inject and mould and has high punching, drawing and bending strength and achieves the technical index of the raw materials needed by the high-speed steel rail sleeper firmware; and in addition, the invention has the advantages of light weight, high strength, good toughness, high load-bearing, easy forming and low cost.

Description

technical field [0001] The invention relates to an organic polymer material. PA66, PA6 or PA66 / PA belonging to polyamide (commonly known as nylon, code PA) is used as a base material, and is blended and melt-extruded by adding a nucleating agent, a glass fiber reinforcing agent and an auxiliary agent. , granulated. A strong and tough nylon composite engineering material and a preparation method thereof, in particular a high-strength engineering plastic formula and a preparation method thereof, that is, a strong and tough nylon composite engineering plastic for high-speed rail sleeper fasteners and a preparation method thereof. Background technique [0002] Traditional railway sleeper fasteners are usually made of metal materials, which are heavy, high energy consumption, difficult to form and process, and often have problems such as climbing, low elasticity, and non-insulation. In the laying, use, and maintenance of modern high-speed railways, they are restricted and There ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08L77/02C08K13/04C08K7/14C08L51/06C08L23/08C08L53/02B29C47/92E01B9/00B29C48/92
CPCB29C48/04B29C48/92B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895
Inventor 陈勇男
Owner 陈勇男
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