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Polydicyclopentadiene building template material and its preparation method

A technology of polydicyclopentadiene and dicyclopentadiene, which is applied in the field of preparation of the material, can solve problems such as application limitations, manufacturing difficulties, poor stiffness, etc., achieve multiple times of repeated use, improve impact strength, and overcome easy water absorption Effect

Inactive Publication Date: 2012-12-19
洛阳智颢工程塑料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult to manufacture large-area plastic templates, the cost is high, and the rigidity is not good, so the application is also limited

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The polydicyclopentadiene building template material of this embodiment is obtained by blending and polymerizing the following raw materials in weight percentage: 98.5% polydicyclopentadiene and 1.5% glass fiber, and the length of the glass fiber is 10 mm.

[0032] The preparation method of polydicyclopentadiene building template material of the present invention comprises the following steps:

[0033] (1) Under the condition of 45°C, 1.5% by weight glass fibers are uniformly dispersed in 98.5% by weight dicyclopentadiene through a homogenizer to obtain a dicyclopentadiene mixed solution in which glass fibers are uniformly dispersed , the vacuum pump is degassed for 25 minutes and then filled with nitrogen for protection;

[0034] (2) under nitrogen protection, add 25 kilograms of dicyclopentadiene mixed liquids in which glass fibers are evenly dispersed in tank A and tank B of the reaction injection molding machine respectively; then add 0.261 kilograms of di(2,6 di t...

Embodiment 2

[0038] The polydicyclopentadiene building formwork material of this embodiment is obtained by blending and polymerizing the following raw materials in weight percentage: 99.7% dicyclopentadiene and 0.3% glass fiber, and the length of the glass fiber is 1 mm.

[0039] The preparation method of polydicyclopentadiene building template material of the present invention comprises the following steps:

[0040] (1) Under the condition of 45°C, 0.3% by weight glass fibers are uniformly dispersed in 99.7% by weight dicyclopentadiene through a homogenizer to obtain a dicyclopentadiene mixed solution in which glass fibers are uniformly dispersed , the vacuum pump is degassed for 25 minutes and then filled with nitrogen for protection;

[0041] (2) Add respectively 25 kilograms of dicyclopentadiene mixed solutions in which glass fibers are uniformly dispersed in tank A and tank B of the reaction injection molding machine under nitrogen protection; then add 0.138 kilograms of bis(2,6 Dite...

Embodiment 3

[0045] The polydicyclopentadiene building formwork material of this embodiment is composed of the following components by weight percentage: 99% polydicyclopentadiene and 1% surface coupling modified glass fiber, wherein the length of the glass fiber is 3mm.

[0046] The preparation method of polydicyclopentadiene building template material of the present invention comprises the following steps:

[0047](1) Add 1 gram of glass fiber to 75 grams of KH-570 silane coupling agent acetone solution with a mass fraction of 10%, add glacial acetic acid to adjust the pH value to 4.5, then disperse and react with ultrasonic waves for 5 hours, and control the water temperature at 60°C After the reaction, the surface-coupling modified glass fiber is taken out, washed with distilled water until the pH is 7, and dried in a vacuum oven at 80°C to constant weight to obtain the surface-coupling modified glass fiber;

[0048] (2) Under the condition of 45°C, uniformly disperse the surface coupl...

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Abstract

The invention discloses a polydicyclopentadiene building template material. The polydicyclopentadiene building template material is obtained through blending polymerization of 80-99.99wt% of dicyclopentadiene and 0.01-20wt% of a glass fiber. The polydicyclopentadiene building template material selects the glass fiber as a reinforcement material to undergo blending polymerization with the dicyclopentadiene to synthesize the composite material, so the impact strength and the tensile strength of the polydicyclopentadiene material can be substantially improved only through adding a small amount of the glass fiber. The impact strength of the composite material is improved to 180-350J / m from original 100J / m of the single polydicyclopentadiene material, and the tensile strength of the composite material is improved to 30-35MPa from original 25MPa of the single polydicyclopentadiene material. The polydicyclopentadiene building template material enables building templates to be 1 / 6-1 / 7 lighter than templates prepared from steel, has the advantages of no rust generation, no deformation, and non-affinity with the building surface, and simultaneously overcomes the shortages of easy water absorption, easy mildewing, low strength and short service life of bamboo templates.

Description

technical field [0001] The invention relates to a polydicyclopentadiene building template material and a preparation method of the material. Background technique [0002] Building formwork is an important tool in the construction of concrete structures. In cast-in-place concrete structure engineering, formwork engineering generally accounts for 20% to 30% of the cost of concrete structure engineering, 30% to 40% of engineering labor, and about 50% of construction period. Formwork technology directly affects the quality, cost and benefit of engineering construction, so it is an important content to promote the progress of my country's construction technology. With the development of my country's economy, a large number of high-rise buildings, super high-rise buildings and large public buildings are being built, large-scale infrastructure construction, and the rapid development of urban transportation, highways, railways, etc. The demand for building templates is increasing d...

Claims

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Application Information

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IPC IPC(8): C08F132/08C08K9/02C08K9/06C08K7/14C08L45/00E04G9/05
Inventor 张玉清曹湛军张航
Owner 洛阳智颢工程塑料有限公司
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