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Preparation method of weather-resistant composite for bicycle handle

A composite material and weather-resistant technology, which is applied in the field of preparation of weather-resistant composite materials for bicycle handles, can solve problems such as cracking, discoloration, and aging of bicycle handles, and achieve high elongation at break, tensile strength, and good weather resistance Effect

Inactive Publication Date: 2015-11-11
苏州天健竹业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the long-term use of bicycles outdoors, affected by the climate, the handles of bicycles often appear aging, discolored, or even broken, causing inconvenience to riding

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] (1) Modification of carbon fiber: In parts by weight, crush 25 parts of carbon fiber, add 10 parts of tartaric acid and 3 parts of epichlorohydrin, mix well, heat to 150°C, activate for 4 hours, add water to wash, remove Water phase, the organic phase is evaporated to dryness to obtain modified carbon fiber;

[0019] (2) Heat 20 parts of polyetherimide to 100°C, then add 4 parts of dicumyl peroxide, 3 parts of polystyrene particles, 2 parts of talcum powder, 1 part of hypophosphorous acid, 2 parts of diphenylamine, 5 parts of oleic acid are mixed evenly, after shearing and dispersing evenly, the modified carbon fiber prepared in step (1) is added, the temperature is raised to 140°C, and the temperature is kept for 5 hours to obtain the mixture;

[0020] (3) Put the mixture of step (2) into the internal mixer for internal mixing. The parameters of the internal mixer are 245°C in the first zone, 255°C in the second zone, 40rpm in rotation speed and 2min in residence time,...

Embodiment 2

[0022] (1) Modification of carbon fiber: in parts by weight, pulverize 40 parts of carbon fiber, add 20 parts of tartaric acid and 7 parts of epichlorohydrin, mix well, heat to 180°C, activate for 6 hours, add water to wash, remove Water phase, the organic phase is evaporated to dryness to obtain modified carbon fiber;

[0023] (2) Heat 30 parts of polyetherimide to 120°C, then add 8 parts of dicumyl peroxide, 7 parts of polystyrene particles, 4 parts of talcum powder, 3 parts of dibutyltin dilaurate, diphenylamine 4 parts and 10 parts of oleic acid are mixed evenly, after shearing and dispersing evenly, the modified carbon fiber prepared in step (1) is added, the temperature is raised to 160°C, and the temperature is kept for 8 hours to obtain the mixture;

[0024] (3) Put the mixture of step (2) into an internal mixer for internal mixing. The parameters of the internal mixer are 255°C for the first zone, 265°C for the second zone, 70rpm for the rotating speed, and 5min for t...

Embodiment 3

[0026] (1) Modification of carbon fiber: In parts by weight, crush 35 parts of carbon fiber, add 15 parts of tartaric acid and 5 parts of epichlorohydrin, mix well, heat to 170°C, activate for 5 hours, add water to wash, remove Water phase, the organic phase is evaporated to dryness to obtain modified carbon fiber;

[0027] (2) Heat 25 parts of polyetherimide to 110°C, then add 6 parts of dicumyl peroxide, 5 parts of polystyrene particles, 3 parts of talcum powder, 2 parts of hypophosphorous acid, 3 parts of diphenylamine, 8 parts of oleic acid are mixed evenly, after shearing and dispersing evenly, the modified carbon fiber prepared in step (1) is added, the temperature is raised to 150°C, and the temperature is kept for 6 hours to obtain the mixture;

[0028] (3) Put the mixture of step (2) into an internal mixer for internal mixing. The parameters of the internal mixer are 250°C for the first zone, 260°C for the second zone, 50rpm for the rotating speed, and 4min for the re...

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Abstract

The invention provides a preparation method of a weather-resistant composite for a bicycle handle. The preparation method comprises the following steps: (1) modification of carbon fiber: smashing carbon fiber, adding organic acid and epoxy chloropropane, uniformly mixing, heating for activating treatment, adding water and washing, removing aqueous phase, and evaporating till organic phase is dry to obtain modified carbon fiber; (2) heating polyetherimide till the temperature is 100-120 DEG C, adding dicumyl peroxide, polystyrene particles, talcum powder, a catalyst, an antioxidant and eleostearic acid and uniformly mixing, after uniform shearing dispersion, adding the modified carbon fiber, heating till the temperature is 140-160 DEG C, and keeping the temperature for 5-8 hours to obtain a mixture; (3) feeding the mixture into an internal mixer to obtain the weather-resistant composite. The composite prepared through the preparation method has quite high elongation at break and tensile strength, and the mechanical property decrease is not obvious after the composite is subjected to acid destruction and damp and hot destruction, so that the composite prepared through the preparation method is also quite good in weather resistance.

Description

technical field [0001] The invention relates to the field of sports equipment materials, in particular to a method for preparing a weather-resistant composite material for bicycle handles. Background technique [0002] As a traditional means of transportation, bicycles have been widely promoted and popularized a long time ago, but with the rapid development of social economy, the continuous improvement of living standards, especially the continuous progress of science and technology, more and more people choose airplanes, cars, etc. The role of bicycles as people's daily travel tools is gradually weakening. However, in recent years, the extreme weather caused by the greenhouse effect has increased sharply, and natural disasters such as earthquakes, tsunamis, heavy rains, and droughts have occurred frequently. Human beings began to think about the harmonious development of man and nature. In addition, with the intensification of environmental pollution and the troubles of...

Claims

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Application Information

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IPC IPC(8): C08L79/08C08L25/06C08K13/06C08K9/04C08K7/06C08K5/14C08K3/34
Inventor 金跃国王磊石秀枫
Owner 苏州天健竹业科技有限公司
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