High-friction and low-loss nylon composite material for castor of trolley luggage and preparation method of nylon composite material

A technology of nylon composite material and trolley case, which is applied in the field of chemical synthesis, can solve the problems of poor optimization of friction coefficient and friction loss, influence of caster noise and shock absorption experience, and inability to optimize rigidity and toughness, so as to solve the problem of processing Poor fluidity, increased contact surface energy and bond strength, and improved overall mechanical properties

Inactive Publication Date: 2019-07-23
XIANGXING FUJIAN BAG ANDLUGGAGE GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, these advances are still unable to optimize and balance the rigidity and toughness of nylon (PA) caster composites, that is, there is no good optimization between friction coefficient and friction loss.
At present, most caster materials either increase their rigidity, increase their density and strength, thereby reducing the friction loss of the caster during use, and ignore the toughness of the material. The toughness is low, which not only reduces the friction coefficient of the caster surface, but also affects The noise and shock absorption experience effect of the caster during use; on the contrary, the high toughness and low rigidity caster will have a large friction loss during use, which greatly reduces the service life of the caster

Method used

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  • High-friction and low-loss nylon composite material for castor of trolley luggage and preparation method of nylon composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Preparation of PAR: mix bisphenol A, terephthalic acid, aliphatic dibasic acid and zinc acetate, pass through nitrogen, heat to 180°C, after the mixture is homogeneous, raise the temperature to 240°C for esterification reaction, After reacting for 2.5h, turbidity was obtained;

[0035] Add antimony trioxide to the turbidity, heat to 300°C under vacuum, and react for 0.2-1h to obtain a milky white polymer;

[0036] Extrude and purify the milky white polymer to obtain PAR.

[0037] Preparation of composite materials:

[0038] S1: put 10 parts of activated carbon fiber and 1 part of potassium permanganate into concentrated sulfuric acid, heat for 2 hours, then wash with distilled water until the pH value is 6.5, and then rinse with ethanol to obtain liquid-phase oxidized activated carbon fiber;

[0039] Ultrasonic dispersion of liquid-phase oxidized activated carbon fibers in ethanol, magnetic stirring, to obtain activation system A;

[0040] Ultrasonic dispersion of 1 ...

Embodiment 2

[0045] Preparation of PAR: mix bisphenol A, terephthalic acid, aliphatic dibasic acid and zinc acetate, pass through nitrogen, heat to 190°C, after the mixture is homogeneous, raise the temperature to 260°C for esterification reaction, After reacting for 2.5h, turbidity was obtained;

[0046] Add antimony trioxide to the turbidity, heat to 310°C under vacuum, and react for 0.2-1h to obtain a milky white polymer;

[0047] Extrude and purify the milky white polymer to obtain PAR.

[0048] Preparation of composite materials:

[0049] S1: Put 13 parts of activated carbon fiber and 2 parts of potassium permanganate into concentrated sulfuric acid, heat for 2~3h, then rinse with distilled water until the pH value is 7, and then rinse with ethanol to obtain liquid-phase oxidized activated carbon fiber;

[0050] Ultrasonic dispersion of liquid-phase oxidized activated carbon fibers in ethanol, magnetic stirring, to obtain activation system A;

[0051] Ultrasonic dispersion of 1.5 p...

Embodiment 3

[0056] Preparation of PAR: mix bisphenol A, terephthalic acid, aliphatic dibasic acid and zinc acetate, pass through nitrogen, heat to 200°C, after the mixture is homogeneous, raise the temperature to 280°C to carry out esterification reaction, After reacting for 2.5h, turbidity was obtained;

[0057] Add antimony trioxide to the turbidity, heat to 320°C under vacuum, and react for 0.2-1h to obtain a milky white polymer;

[0058] Extrude and purify the milky white polymer to obtain PAR.

[0059] Preparation of composite materials:

[0060] S1: put 15 parts of activated carbon fiber and 3 parts of potassium permanganate into concentrated sulfuric acid, heat for 2~3h, then rinse with distilled water until the pH value is 7.5, and then rinse with ethanol to obtain liquid-phase oxidized activated carbon fiber;

[0061] Ultrasonic dispersion of liquid-phase oxidized activated carbon fibers in ethanol, magnetic stirring, to obtain activation system A;

[0062] Ultrasonic dispersi...

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Abstract

The invention discloses a high-friction and low-loss nylon composite material for a castor of a trolley luggage and a preparation method of the nylon composite material. The material is prepared fromcomponents in parts by mass as follows: 30-35 parts of PA (polyamide), 10-15 parts of PAR (polyarylester), 5-10 parts of hollow glass beads, 10-15 parts of activated carbon fibers, 5-10 parts of an interfacial solubilizer and 3-5 parts of nano-aluminum chloride. With addition of PAR, rigidity and toughness of the composite material are optimized effectively, so that the castor has higher toughnesswhile having certain rigidity, and integration of high friction coefficient and low loss is realized; by means of integrated reinforcing filler, more sufficient carbon fiber strength improvement andtoughness improvement of the hollow glass beads of the material can be realized; by combined use of EPDM-g-MAH and LLDPE-g-MAH, the solubilizing effect of the components is greatly improved, the solubilizing target range is wider, and rigid and tough performance of the material is effectively improved.

Description

technical field [0001] The invention relates to the technical field of chemical synthesis, in particular to a high-abrasion and low-wear nylon composite material for trolley case casters and a preparation method thereof. Background technique [0002] Trolley box caster system materials (including brackets and casters) are produced with reinforced nylon at home and abroad. Nylon is mainly modified by fiber, which can significantly improve the acid and alkali resistance and physical and mechanical properties of nylon, making it applicable to a wider range, so fiber modified nylon is of great significance. Reinforced nylon includes glass fiber reinforced / carbon fiber reinforced / basalt fiber reinforced and aramid fiber reinforced. Among them, glass fiber and carbon fiber are the main types. Glass fiber reinforced nylon is a composite material made of polymer as a matrix and glass fiber as a reinforcing material. It combines the properties of polymer and glass fiber and has high...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08L77/02C08L67/02C08L51/04C08L51/06C08K13/06C08K9/02C08K9/06C08K7/28C08K7/06C08K3/22C08G63/195
CPCC08G63/195C08K2003/2227C08K2201/011C08L77/02C08L77/06C08L67/02C08L51/04C08L51/06C08K13/06C08K9/02C08K9/06C08K7/28C08K7/06C08K3/22
Inventor 谢孝波陈琼涂思敏
Owner XIANGXING FUJIAN BAG ANDLUGGAGE GRP CO LTD
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