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High-wear resistance and high-dimensional stability steering turbine material and preparation method thereof

A technology with dimensional stability and high wear resistance, applied in the field of materials, can solve the problems of product mechanical strength, impact resistance decline, affecting system fluidity and flow uniformity, and product surface dimensional stability deterioration, etc. Early failure, ease of industrialization, improved dimensional stability

Pending Publication Date: 2020-04-07
NANJING JULONG SCI&TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the main modification method is to add molybdenum disulfide, graphite, PTFE and other materials. The introduction of these materials often brings many negative effects while improving the wear resistance of nylon. The strength, impact resistance and other properties are greatly reduced, which affects the performance of the product; 2. During the processing, the fluidity and flow uniformity of the system are seriously affected, resulting in poor surface and dimensional stability of the product. Therefore, if you want to obtain high wear resistance, Turning to turbine materials with high dimensional stability, it is necessary to solve the above problems

Method used

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  • High-wear resistance and high-dimensional stability steering turbine material and preparation method thereof
  • High-wear resistance and high-dimensional stability steering turbine material and preparation method thereof
  • High-wear resistance and high-dimensional stability steering turbine material and preparation method thereof

Examples

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Effect test

Embodiment 1

[0029] A method for preparing a high wear-resistant, high dimensional stability steering turbine material, comprising the following steps:

[0030] Step 1: Mix 60 parts of polyamide (50 parts of nylon 66 and 10 parts of nylon 46), 12 parts of wear-resistant additives (3 parts of modified ultrafine ceramic particles, 9 parts of surface modified lanthanum trioxide), anti-shrinkage agent 6 parts (acrylonitrile-butadiene copolymer 2 parts, maleic anhydride grafted ethylene-butene copolymer 4 parts), nucleating agent adipamide trimer 3 parts, lubricant ultra-high molecular weight silicone 5 parts , the molecular weight of the ultra-high molecular weight silicone is 1.5 million, and 1 part of antioxidant 1098 is mixed in a mixer for 3 minutes according to a certain number of parts by weight to obtain a mixture;

[0031] Step 2: Adding into the twin-screw extruder through the hopper, adding 10 parts of the wollastonite filler into the extruder through the side feeding port, melt blen...

Embodiment 2

[0033] A method for preparing a high wear-resistant, high dimensional stability steering wheel material, comprising the following steps:

[0034] Step 1: Mix 80 parts of polyamide (80 parts of nylon 610), 5 parts of wear-resistant additive (a compound composed of 2.5 parts of surface-modified calcium sulfide and 2.5 parts of surface-modified lanthanum trioxide), and 10 parts of anti-shrinkage agent parts (5 parts of maleic anhydride grafted ethylene-butene copolymer and 5 parts of ethylene-acrylate-maleic anhydride copolymer); 3 parts of nucleating agent adipamide trimer, amino-modified lubricant 3 parts of silicone and 0.3 parts of antioxidant 168 were mixed in a mixer for 1-3 minutes according to certain parts by weight to obtain a mixture;

[0035] Step 2: Add the above mixture into a twin-screw extruder through a hopper, melt blend, extrude, stretch, and granulate at a temperature of 240-150°C to obtain a nylon composite material suitable for blow molding micro-foaming , ...

Embodiment 3

[0037] A preparation method of a high wear-resistant, high dimensional stability steering turbine material comprises the following steps:

[0038] Step 1: 70 parts of polyamide (50 parts of nylon 66 and 20 parts of nylon 46), 6 parts of anti-wear additive surface modified lanthanum trioxide, 6 parts of anti-shrinkage agent ethylene-acrylate-maleic anhydride copolymer, 0.5 part of nucleating agent caprolactam ring dimer, 0.5 part of lubricant EBS, and 0.5 part of antioxidant 1098 were mixed in a mixer for 1-3 minutes according to certain parts by weight to obtain a mixture;

[0039] Step 2: Add into the twin-screw extruder through the hopper, add 15 parts of the filler mica into the extruder through the side feeding port, melt blending, extruding, stretching, and making at a temperature of 240-150°C Granules to obtain a nylon composite material suitable for blow molding micro-foaming, wherein the screw length-to-diameter ratio is 40:1, the rotation speed is 800r / min, and the va...

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Abstract

The invention relates to a high-wear resistance and high-dimensional stability steering turbine material and a preparation method thereof. The material comprises the following components by weight: 60-80 parts of polyamide, 5-12 parts of a wear-resistant assistant, 0-15 parts of a filling agent, 6-18 parts of an anti-shrinking agent, 0.5-5 parts of a nucleating agent, 0.5-5 parts of a lubricatingagent and 0.3-1 part of an antioxidant. The high-wear resistance and high-dimensional stability steering turbine material disclosed by the invention has very good mechanical properties, and has the characteristics of self-lubricating properties, small friction coefficient, excellent wear resistance, long service life, easy processing, good molding performance, excellent mechanical properties, goodheat resistance, excellent low-temperature resistance and the like, and a hollow blow molding product has the characteristics of light weight, high strength, good dimensional stability, excellent heat resistance, high apparent quality, high yield, short molding period and the like; in addition, the product also has good long-term thermal aging performance.

Description

technical field [0001] The invention relates to a nylon material and a preparation method thereof, in particular to a hollow blow molding micro-foamed nylon material and a preparation method thereof, belonging to the field of material technology. Background technique [0002] Nylon material has excellent mechanical properties, heat resistance, corrosion resistance, and high barrier properties. It has a simple molding process and low energy consumption. It has become the fastest-growing engineering plastic and is often used in the manufacture of various automobiles, electronic appliances , electric tools and other key structural components. However, due to the existence of a large number of amide bonds, nylon has high polarity, and is prone to severe adhesion when rubbed against metal and other materials. At the same time, it has strong water absorption and poor dimensional stability. When applied to automotive steering turbines, it is necessary to further improve the wear r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08L51/06C08L33/20C08L23/08C08K13/06C08K9/00C08K3/013C08K3/22C08K3/30
CPCC08L77/06C08L2205/035C08L2205/025C08L2205/24C08K2003/3018C08K2003/221C08L51/06C08L33/20C08K13/06C08K9/00C08K3/013C08K3/22C08L23/0869C08K3/30
Inventor 王滨刘曙阳蒋顶军
Owner NANJING JULONG SCI&TECH CO LTD
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