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Straw/polymer composite material for public transit facilities, preparation method of composite material and application of composite material

A technology for public transportation and composite materials, applied in the field of straw/polymer composite materials, can solve the problems of poor safety of public transportation facilities, and achieve the effect of improving safety

Inactive Publication Date: 2019-09-20
QIQIHAR UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of poor safety of existing public transportation facilities, the present invention proposes a straw / polymer composite material for public transportation facilities and its preparation method and application

Method used

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  • Straw/polymer composite material for public transit facilities, preparation method of composite material and application of composite material
  • Straw/polymer composite material for public transit facilities, preparation method of composite material and application of composite material
  • Straw/polymer composite material for public transit facilities, preparation method of composite material and application of composite material

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Embodiment 1

[0024] Embodiment 1: The straw / polymer composite material for public transportation facilities in this embodiment is composed of a thermosetting polymer and straw powder.

[0025] The volume fraction of straw powder in the straw / polymer composite material is 5%.

[0026] The preparation method is as follows: firstly, the straw is made into straw powder, then the straw powder is mixed with a polymer matrix, and finally placed in a molding mold for solidification and molding.

[0027] The straw is corn straw.

[0028] The preparation process of the straw powder is as follows: cut the straw into 2 cm straw sections, then dry them at 110°C for 2 hours, use a pulverizer to crush the dried straw sections, and then dry them at 110°C for 2 hours. hour, and finally pass through a 140 mesh sieve to complete. The drying process is beneficial to the crushing of the straw, and the finer the crushing of the straw, the better the strength of the prepared composite material.

[0029] The c...

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Abstract

The invention discloses a straw / polymer composite material for public transit facilities, a preparation method of composite material and application of composite material, relates to a straw / polymer composite material, and aims to solve the problem that an existing steel truss height limit frame is poor in safety. A thermoset or thermoplastic polymer serves as a substrate, and the polymer and straw powder are compounded to prepare the composite material. The preparation method includes the steps: firstly, preparing the straw powder from straws; secondly, mixing the straw powder and the polymer substrate; finally, placing mixture into a forming die to solidify the mixture. The straw / polymer composite material can replace a metal material to be used for preparing height limit frames and other public transit facilities such as guardrails, isolation belts, isolation rods, isolation piers and fences. When a public transit facility is collided by a vehicle, a collided portion of the public transit facility is broken or deformed, damage to the vehicle and a driver can be avoided, and safety of the public transit facilities is improved. The composite material is applicable to preparation of the public transit facilities.

Description

technical field [0001] The invention relates to a straw / polymer composite material Background technique [0002] Elevation-limited structures in public transportation facilities are used to limit the passage of super-high vehicles. Public transportation facilities such as elevated-limited elevated roads, guardrails, isolation poles, isolation belts, isolation piers or fences are installed on roads and bridges across the country. And the quantity is large. These public transportation facilities can ensure the traffic safety of highways and bridges, improve traffic efficiency, and at the same time prevent overloaded and overrun vehicles from causing fatal damage to highways and bridges and avoid accidents. [0003] For example, most of the medium-limit elevated bridges in existing public transportation facilities use steel structures. Once damaged, dumped or dropped, it will inevitably cause extremely serious safety hazards such as casualties and vehicle losses. Contents of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08L97/02
CPCC08L63/00C08L97/02
Inventor 娄春华闫安孟令阳马冰杰王灏施惠红侯宇欣
Owner QIQIHAR UNIVERSITY
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