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High abrasion-resistance nylon composite material for trolley of airport freight train and preparation method thereof

A technology of nylon composite materials and freight vehicles, which is applied in the direction of equipment for transporting goods, etc., can solve the problems of poor dyeing, loud noise, and human ear damage, and achieve the effect of extremely strong hardness, high friction coefficient, and not easy to wear

Active Publication Date: 2010-11-10
EASYROLL TECH HK +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

3. Non-toxic, odorless, mildew-free, self-extinguishing, good weather resistance, but poor dyeing property
5. Good electrical insulation, but easily affected by temperature
6. High water absorption, moisture affects dimensional stability and electrical properties
Especially in rainy days, it is easy to slip, and the required objects are out of control, and the objects need to be pushed and turned in the correct direction by hand. There are many accidents that cause workers to slip and get injured every year due to pushing objects
In addition, the existing aluminum alloy rollers are easy to wear the bottom plate of the container and the container plate, and the noise generated during friction is too large, causing damage to the human ear

Method used

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  • High abrasion-resistance nylon composite material for trolley of airport freight train and preparation method thereof
  • High abrasion-resistance nylon composite material for trolley of airport freight train and preparation method thereof
  • High abrasion-resistance nylon composite material for trolley of airport freight train and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-6

[0068] The high wear-resistant nylon 6 (PA6) composite material uses nylon 6 (PA6), glass microspheres (GB), glass fiber powder (GF) and lubricating and wear-resistant agents as main materials, and the rest are auxiliary materials. The high wear-resistant nylon 6 composite material is made up of the following components and raw materials in weight percentage:

[0069] Table 1: Proportions 1-6

[0070]

[0071] Wherein, the viscosity of the nylon 6 is 2.4; the glass microspheres and glass fiber powder are non-alkali glass microspheres and non-alkali glass fiber powder, the surface of which is treated with a silane coupling agent; the ultra-high molecular weight polyethylene is the first lubricant Anti-wear agent; the polytetrafluoroethylene is the second lubricating anti-wear agent; the graft type toughening modifier is the oligomer of polyolefin elastomer (POE) grafted unsaturated acid or acid anhydride graft polymerization, Its melt index is 1.0-5.0g / 10min, and graft rate...

Embodiment 7

[0079] The present invention also provides a preparation method of a high wear-resistant nylon 6 (PA6) composite material, the preparation process steps are as follows: Step 1: take the raw material according to the following weight percentage, nylon 6 is 69%, and the surface is treated with a silane coupling agent 10% of processed glass beads, 10% of glass fiber powder treated by silane coupling agent on the surface, 3% of the first lubricating and wear-resistant agent (ultra-high molecular weight polyethylene), the second lubricating and wear-resistant agent (polytetrafluoroethylene) 3%, 4% of grafted toughening modifier, 0.5% of antioxidant 1098 / 168 compound system compounded according to the weight ratio of 1:1, 0.2% of lubricating and dispersing agent calcium stearate, and 0.3% of nucleating agent %; Step 2: put the above raw materials into a high mixer and mix for 5 minutes, then discharge, and then extrude and granulate with a twin-screw extruder, the processing temperat...

Embodiment 8

[0082] The present invention also provides another preparation method of high wear-resistant PA6 composite material. The preparation process steps are as follows: Step 1: The raw material weighed by weight percentage, nylon 6 accounts for 70%, and the glass surface is treated with silane coupling agent Microbeads account for 10%, glass fiber powder treated with silane coupling agent on the surface accounts for 10%, graft type toughening modifier 3%, the first lubricating and wear-resistant agent (ultra-high molecular weight polyethylene) accounts for 3%, the second Two lubricating and wear-resistant agents (polytetrafluoroethylene) account for 3%, according to the weight ratio of 1: 1 composite antioxidant 1098 / 168 composite system accounts for 0.3%, and the lubricating and dispersing agent calcium stearate accounts for 0.2%. The nucleating agent accounts for 0.5%; Step 2: Put the above raw materials into a high-mixer and mix for 3 minutes, press and discharge, and then extrude...

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Abstract

The invention relates to a high abrasion-resistance nylon composite material for a trolley of an airport freight train and a preparation method thereof. The composite material comprises the following main components in percentage by weight: 60 to 80 percent of nylon 6 or nylon 66 or a mixture of the nylon 6 and nylon 66, 5 to 13 percent of glass microspheres, 6 to 14 percent of glass fiber powder and 5 to 7 percent of lubricating antiwear agent. The composite material comprises the following minor components in percentage by weight: 3 to 5 percent of graft toughened modifier, 0.3 to 1 percent of antioxidant, 0.2 to 0.3 percent of lubricating dispersing agent and 0.2 to 0.5 percent of nucleating agent. The composite material of the invention has the characteristics of high wear resistance, high heat resistance, relatively high toughness and skid resistance and the like.

Description

technical field [0001] The invention relates to a nylon composite material and a preparation method thereof, in particular to a high wear-resistant nylon composite material used for airport freight car rollers and a preparation method thereof. Background technique [0002] Polyamide (PA), commonly known as nylon, has polar amide groups and can form hydrogen bonds, so it has excellent mechanical properties and impact resistance, and is a relatively tough engineering plastic. The characteristics of this material are: 1. High crystallinity, high surface hardness, wear resistance, small friction coefficient, self-lubrication and noise reduction. 2. Good low temperature performance and certain heat resistance. 3. Non-toxic, odorless, mildew-free, self-extinguishing, good weather resistance, but poor dyeing property. 4. Good chemical stability, seawater resistance, solvent resistance, oil resistance, but not acid resistance. 5. Good electrical insulation, but easily affected by...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08L77/06C08K13/04C08K7/14C08K7/20C08K13/06C08K9/06B29C48/05
CPCC08K7/14C08J3/20B29C47/0004B64F1/32C08K7/20C08L77/06C08J2377/02C08L77/02B29C47/0014C08L2205/02C08L23/04C08L27/18C08L51/06B29C48/05B29C48/022C08L77/00
Inventor 韩政芳
Owner EASYROLL TECH HK
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