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Composite material for shell of toilet of high-speed train and preparation method thereof

A technology for high-speed trains and composite materials, which is applied in the field of high-speed train toilet composite material shells and its preparation, can solve the problems of large curing shrinkage and performance degradation, and achieve the effects of reducing product costs, increasing service life, and reducing shrinkage

Active Publication Date: 2014-10-01
CRRC WIND POWER(SHANDONG) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the shortcomings of unsaturated resin polyester curing shrinkage rate is large and thermal stress inside the composite material due to temperature difference causes its performance to decline, the invention provides a high-speed train toilet composite material shell and its preparation method

Method used

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  • Composite material for shell of toilet of high-speed train and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0027] Embodiment 1: the preparation method of the high-speed train toilet composite housing of the present embodiment is carried out according to the following steps: (1) make the shell mold according to the high-speed train toilet design requirements; (2) prepare modified unsaturated polyester resin: A .Take 100 parts of unsaturated resin polyester, add 15 parts of styrene diluent to it, and stir evenly; B. Take 10 parts of zirconium tungstate and 12 parts of aluminum hydroxide powder, grind them separately and pass through a 200-mesh sieve screen. C. Surface treatment of zirconium tungstate and aluminum hydroxide solid powder with tetramethoxysilane, the mass percentage of tetramethoxysilane and solid powder is 1:50; D. Place the treated powder at 100°C Dry in a constant temperature drying oven for 2 hours; E. Grind the dried powder separately and sieve through a 200-mesh sieve; F. Add the powder into the diluted resin matrix and stir evenly; G. Take 3 parts of bentonite an...

Embodiment 2

[0029] Embodiment 2: The difference between this embodiment and embodiment 1 is that in step (2) A, 10 parts of styrene diluent are added to 100 parts of unsaturated resin polyester, and other steps are the same as embodiment 1.

Embodiment 3

[0030] Embodiment 3: the difference of this embodiment and embodiment 1 or 2 is that in the A of step (2), add 10 parts of styrene and 5 parts of acetone to 100 parts of unsaturated resin polyesters, other steps and embodiment 1 or the same.

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Abstract

The invention discloses a composite material for a shell of a toilet of a high-speed train and a preparation method thereof. The shell is formed by compounding modified unsaturated polyester resin and reinforced fibers by virtue of a hand lay-up moulding technology or a compression moulding technology, wherein the modified unsaturated polyester resin is obtained by modifying unsaturated polyester resin by virtue of a diluter, zirconium tungstate, aluminium hydroxide and bentonite, then adding an accelerator and an initiating agent and uniformly stirring. The composite material for the shell of the toilet of the high-speed train has the beneficial effects that shrinking percentage of a product during curing is reduced, and accuracy of dimension is guaranteed; thermal expansion coefficient of resin matrix can be effectively regulated and controlled to be close to that of the reinforce fibers, internal thermal stress is reduced and even eliminated, and service life of the product is effectively prolonged; flame retardant property of the shell of the toilet is improved, the amount of smoke produced during combustion is reduced, and product cost is further reduced.

Description

technical field [0001] The invention relates to a high-speed train toilet composite material shell and a preparation method thereof, belonging to the field of railway vehicle sanitary equipment manufacturing. Background technique [0002] The high-speed train toilet is an important part of the train interior decoration. Its shell is not only required to be light in weight and high in strength, but also required to have flame-retardant and low-smoke properties. Glass fiber-reinforced resin-based composites (also known as FRP) have the advantages of high specific strength, corrosion resistance, and fatigue resistance, and are regarded as ideal materials for high-speed train interior products. However, there are two defects in the products currently used: on the one hand, due to the large shrinkage rate of the unsaturated polyester resin matrix during curing, there is a difference between the product molding size and the design size, and the dimensional precision of the product...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/01C08K9/06C08K7/00C08K7/14C08K3/24C08K3/22C08K3/34B29C70/38
Inventor 于洪明胡宪明刘克健游慧鹏陈江平
Owner CRRC WIND POWER(SHANDONG) CO LTD
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