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Heat-preservation windproof polystyrene board and preparation method thereof

A technology of polystyrene board and polystyrene foam, which is applied in thermal insulation, building thermal insulation materials, flat products, etc. It can solve the problems of general thermal insulation effect, low safety performance, and shortened service life, so as to improve thermal insulation effect, the effect of reducing heat transfer efficiency

Pending Publication Date: 2022-05-17
吴佃宝
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the development of thermal insulation and energy-saving buildings in China, the demand for polystyrene panels is increasing, but in the face of relatively harsh environments, the thermal insulation effect of polystyrene panels is difficult to meet, limiting its use
At present, polystyrene boards are often mixed with polystyrene particles and rubber powder. Although the cost is low, the safety performance is not high, and the thermal insulation effect is relatively general.
[0003] As a building material, polystyrene board is in the natural environment for a long time, and it is easily attacked by microorganisms and insects to cause decay and mildew, which affects its physical and mechanical properties and shortens its service life. Based on this, how to invent a high-efficiency heat preservation Polystyrene boards with heat insulation and mildew resistance are particularly important

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A method for preparing a thermal insulation and windproof polystyrene board, the preparation method of the thermal insulation and windproof polystyrene board comprises the following preparation steps:

[0034] (1) First modification: place polystyrene particles with a particle size of 1 mm in a container, oxidize for 30 minutes under an ozone atmosphere, and then irradiate with an ultraviolet lamp with a wavelength of 254 nm for 10 minutes to obtain modified polystyrene particles;

[0035] (2) First foaming: Mix modified polystyrene particles, thermosetting phenolic resin, and isopentane at a mass ratio of 1:0.8:0.04, stir at 1000rpm for 90s, add 0.05 times the mass of modified polystyrene particles P-toluenesulfonic acid, then put it into an autoclave, raise the temperature to 160°C, keep the pressure at 20MPa for 3h, then cool down to 100°C, keep the pressure at the same pressure for 3h, quickly release the pressure at 6MPa / s to get polyphenylene foam plate;

[0036]...

Embodiment 2

[0041] A method for preparing a thermal insulation and windproof polystyrene board, the preparation method of the thermal insulation and windproof polystyrene board comprises the following preparation steps:

[0042] (1) First modification: place polystyrene particles with a particle diameter of 5 mm in a container, oxidize for 40 minutes under an ozone atmosphere, and then irradiate with a UV lamp with a wavelength of 254 nm for 20 minutes to obtain modified polystyrene particles;

[0043] (2) First foaming: Mix modified polystyrene particles, thermosetting phenolic resin, and isopentane at a mass ratio of 1:1.5:0.1, stir at 2000rpm for 60s, add 0.2 times the mass of modified polystyrene particles P-toluenesulfonic acid, then put it into an autoclave, raise the temperature to 170°C, keep the pressure at 30MPa for 1h, then cool down to 120°C, keep the pressure at the same pressure for 1h, quickly release the pressure at 8MPa / s to get polyphenylene foam plate;

[0044] (3) The...

Embodiment 3

[0049] A method for preparing a thermal insulation and windproof polystyrene board, the preparation method of the thermal insulation and windproof polystyrene board comprises the following preparation steps:

[0050] (1) First modification: place polystyrene particles with a particle size of 3 mm in a container, and oxidize them for 33 minutes under an ozone atmosphere, then irradiate them with an ultraviolet lamp with a wavelength of 254 nm for 14 minutes to obtain modified polystyrene particles;

[0051] (2) First foaming: Mix modified polystyrene particles, thermosetting phenolic resin, and isopentane at a mass ratio of 1:1.2:0.09, stir at 1500rpm for 81s, add 0.08 times the mass of modified polystyrene particles P-toluenesulfonic acid, then put it into an autoclave, raise the temperature to 165°C, keep the pressure at 25MPa for 2h, then cool down to 112°C, keep the pressure at the same pressure for 2h, quickly release the pressure at 7MPa / s to get polyphenylene foam plate;...

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Abstract

The invention discloses a thermal-insulation windproof polystyrene board and a preparation method thereof, and relates to the technical field of building materials. The preparation method comprises the following steps: firstly, carrying out first-time modification treatment and first-time foaming to form a polyphenyl foam board with rich hydroxyl groups on the surface; secondly, carrying out second modification treatment by using chloramphenicol, 1, 2, 8-octantriol and 1, 3, 5-tricarboxyl pentane to form a hyperbranched polyester phase-change film, so as to realize the thermal insulation effect of the polystyrene board; then, butyl titanate and ethyl alcohol are utilized for secondary foaming, and the heat insulation and heat preservation effects of the polystyrene board are improved; then magnetic field-electric field assisted pulse laser condensation is utilized to form a nano-zinc oxide film, so that the growth of mould is effectively inhibited, and the polystyrene board has a mould-proof effect; and then a sintering process is carried out, so that the nano zinc oxide film on the surface is closed, and the mildew-proof effect of the polystyrene board is improved. The heat-preservation windproof polystyrene board prepared by the invention has heat-preservation, heat-insulation and mildew-proof effects.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a thermal insulation and windproof polystyrene board and a preparation method thereof. Background technique [0002] The full name of polystyrene board refers to polystyrene foam board. Polystyrene board is mainly a white solid that uses expandable polystyrene beads and is heated and formed in a mold after heat pre-expansion and aging. With the development of thermal insulation and energy-saving buildings in China, the demand for polystyrene boards is increasing day by day. However, in the face of relatively harsh environments, the thermal insulation effect of polystyrene boards is difficult to meet, which limits its use. At present, polystyrene boards are often mixed with polystyrene particles and rubber powder. Although the cost is low, the safety performance is not high, and the thermal insulation effect is relatively general. [0003] As a building material, polys...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/36C08J3/28C08J3/00C08J9/14C08J9/12C08L25/06C08L61/06B29B13/08B29C67/04B29D7/01E04B1/62E04B1/80C23C14/58C23C14/28C23C14/08
CPCC08J9/365C08J9/36C08J3/28C08J3/00C08J9/141C08J9/122B29D7/01B29B13/08B29C67/04E04B1/80E04B1/62C23C14/086C23C14/28C23C14/5806C08J2325/06C08J2461/06C08J2203/14C08J2203/06Y02B80/10
Inventor 吴佃宝
Owner 吴佃宝
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