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Graphene polystyrene board and preparation method thereof

A technology of polystyrene board and graphene, applied in the field of polystyrene board, can solve the problems of inhibition effect, agglomeration of polymerization kettle, increase of water absorption rate and thermal conductivity, etc., to increase antibacterial and mildew resistance, and good mechanical strength , the effect of simple operation

Active Publication Date: 2019-04-23
厦门誉山工贸有限公司
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Problems solved by technology

[0004] However, research has found that adding graphene directly to the EPS system for polymerization is prone to a polymerization inhibition effect and even agglomeration in the polymerization kettle. Although the tensile strength of the polystyrene board produced is higher than that of the national The standard (tensile strength ≥ 0.1MPa) can be increased by 5%-20%, but there is an upward trend in water absorption and thermal conductivity

Method used

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  • Graphene polystyrene board and preparation method thereof
  • Graphene polystyrene board and preparation method thereof
  • Graphene polystyrene board and preparation method thereof

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preparation example Construction

[0042] 1. Preparation examples of raw materials and / or intermediates

[0043] Polystyrene used in the present invention, graphene oxide, styrene dimethyl siloxanol ether copolymer, polysiloxane, nonylphenol polyoxyethylene ether, beeswax, shell powder and kaolin are all from the market purchase proceeds.

[0044] Among them, the shell powder is placed in a high-temperature furnace before use, calcined at a temperature of 1000±5°C for 30 minutes, and cooled to room temperature for later use.

[0045] 2. Embodiment

[0046] 2.1. Embodiment 1

[0047] A kind of preparation method of graphene polystyrene plate, comprises the following specific steps:

[0048] ①. Raw material premixing: Weigh 80kg of polystyrene, 15kg of graphene oxide, 5kg of styrene dimethyl siloxane alcohol ether copolymer, 3kg of beeswax and 3kg of calcined shell powder in sequence, heat and stir Obtain the premix after homogenization;

[0049] ②. Foaming machine preheating: turn on the power, start the st...

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Abstract

The invention discloses a graphene polystyrene board and a preparation method thereof, and belongs to the technical field of polystyrene boards. The thermal conductivity and water absorption rate of the graphene polystyrene board are effectively reduced, and the graphene polystyrene board has excellent tensile strength, compressive strength, dimensional stability, antibacterial property and mold resistance. The technical key point of the invention is that: the graphene polyphenyl board is prepared from the following raw materials in parts by weight: 80 to 100 parts of polystyrene, 15 to 20 parts of graphene oxide, 5 to 10 parts of a surface modifier, 3 to 5 parts of beeswax and 3 to 8 parts of an inorganic filler, and is mainly prepared by preliminary foaming, preliminary curing, secondaryfoaming, secondary curing and board forming operation procedures.

Description

technical field [0001] The invention belongs to the technical field of polystyrene boards, in particular to a graphene polystyrene board and a preparation method thereof. Background technique [0002] Polystyrene (PS) is the second largest foaming material after polyurethane (PU). Compared with traditional foaming agents such as chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs), it uses supercritical As an alternative foaming agent, carbon dioxide is non-toxic and environmentally friendly, and it is made into corresponding polystyrene boards and widely used in the construction industry. [0003] Among them, in the process of carbon dioxide expanded polystyrene, the diffusion rate of carbon dioxide is fast and the solubility is low, which often makes the foaming process difficult to control. For this reason, adding inorganic particles as a heterogeneous nucleating agent, especially graphene with a large specific surface area and excellent infrared absorption ef...

Claims

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Application Information

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IPC IPC(8): C08L25/06C08L25/08C08L83/04C08L71/02C08K3/04C08K9/00C08K3/26C08J9/08B29C44/08B29L7/00
CPCB29C44/08B29L2007/002C08J9/0061C08J9/0071C08J9/009C08J9/06C08J9/08C08J2203/02C08J2325/06C08J2425/08C08J2471/02C08J2483/04
Inventor 杨东山
Owner 厦门誉山工贸有限公司
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