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Fuel tank made from Nano composite material of nylon / clay, and preparation method

A nano-composite material, fuel tank technology, applied in gasoline barrels, bicycle accessories, transportation and packaging, etc., can solve the problems of large energy consumption and time, long polymerization time, energy consumption and time consuming, etc., to achieve large interface area, excellent mechanics performance, eliminating the effects of thermal expansion mismatch

Inactive Publication Date: 2006-07-05
SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there are still the following deficiencies: a large amount of dispersion media are used in the preparation process, and a large amount of energy and time are consumed to remove these dispersion media; and the polymerization time is long, it takes 6 to 10 hours to complete the polymerization, and the polymerization temperature is also as high as 250 to 260 ℃, energy and time-consuming, low efficiency and high cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Component A: Add 20g of bentonite to 600g of ε-caprolactam monomer, keep the temperature at 120°C, stir at high speed for 2 hours to obtain a clay dispersion, add 70g of caprolactam sodium salt, 200g of nylon 1010, 40g of propylene glycol and ethylene glycol copolymer, and four [ β-(3,5-di-tert-butyl-4-carboxyphenyl) propionate] pentaerythritol ester and dilauryl thiodipropionate mixture 30 g (1:1, weight ratio), N, N'-grass Anilide 20 grams, carbon black 20 grams. A total of 1000 grams of component A was melted and mixed at 175°C, and vacuum dehydrated for 15 minutes;

[0040] Component B: ε-caprolactam 920 g, caprolactam / diisocyanate block 80 g. A total of 1000 g of component B was melt-mixed at 175° C., and vacuum dehydrated for 15 minutes.

[0041] Component A and component B were mixed, poured into a mold, and reacted at 190° C. for 8 minutes. Two-way rotation speed: revolution is 6rpm; rotation is 12rpm. The mold is cooled, and the mold is unloaded to obtain a...

Embodiment 2

[0043] The preparation method is the same as in Example 1, wherein the clay content is 40g.

Embodiment 3

[0045]Component A: Add 10 g of montmorillonite to 800 g of ε-caprolactam, keep the temperature at 135° C., stir at high speed for 10 h to obtain a clay dispersion, add 30 g of sodium hydroxide, 100 g of nylon 910, 20 g of polypropylene glycol, tetrakis[β-( 3,5-di-tert-butyl-4-carboxyphenyl) propionic acid] pentaerythritol ester and phosphite tris (2,4-di-tert-butylphenyl) ester mixture 20 grams (2: 1, weight ratio), di Benzophenone 10 grams, carbon black 10 grams. A total of 1000 g of component A was melted and mixed at 120° C., and vacuum dehydrated for 15 minutes.

[0046] Component B: 950 grams of ε-caprolactam, 50 grams of toluene diisocyanate. A total of 1000 g of component B was melted and mixed at 120° C., and vacuum dehydrated for 15 minutes.

[0047] Component A and component B were mixed, poured into a mold, and reacted at 140° C. for 15 minutes.

[0048] Two-way rotation speed: revolution is 3rpm; rotation is 6rpm.

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PUM

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Abstract

This invention discloses a process for preparing a nylon / clay nanocomposite fuel tank. In the process, in situ polymerization is employed for the insertion into the interlayers of the nanocomposite so that clay can be dispersed to the degree of nanoscale in the nylon matrix, which results in a very large interfacial area. The ideal adhesion between the dispersed inorganic phase and the polymer matrix can eliminate the problem of thermal expansion coefficient mismatch between the inorganic phase and the polymer matrix, and sufficiently exploit the intrinsic good mechanical properties and heat durability of the inorganic phase. The composite fuel tank prepared by this invention exhibits improved heat-resisting property while has little influence on the mechanical properties of the matrix material.

Description

technical field [0001] The invention relates to a nylon fuel tank applied to automobiles and motorcycles and a preparation method thereof. Background technique [0002] At present, the fuel tanks used by automobiles and motorcycles in the domestic market are mainly metal fuel tanks and polyethylene plastic fuel tanks. Metal fuel tanks have high strength and good barrier properties, but the processing is complicated, and it is difficult to manufacture complex structures, and the weight is heavy, which does not meet the current trend of vehicle weight reduction. Polyethylene fuel tanks are light in weight, free in shape design, and easy to form, but have low mechanical strength and poor fuel barrier performance. [0003] The nylon / clay nano-composite fuel tank manufactured by the rotomolding method of the present invention has many advantages of the polyethylene fuel tank, such as light weight, high degree of freedom in shape design, and the fuel tank with complex shapes can ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08G69/14C08K5/315B62J35/00B60K15/03
Inventor 杨桂生黄玉强沈时骏李智孙伟吴奋荣
Owner SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
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