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Resin composition, polystyrene board and preparation method for polystyrene board

A technology of resin composition and polystyrene board, which is applied in the field of thermal insulation materials, can solve the problems of poor flame retardant effect and the combustion performance can only reach B3 or B2 level, and achieve the effect of improving the combustion performance level

Active Publication Date: 2015-07-01
JIANGSU WONIUSHAN THERMAL INSULATION & WATERPROOF TEHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] 1. Combustion performance depends on raw materials. Hexabromododecane is usually used as a flame retardant. Hexabromododecane can capture free radicals during combustion and stop the chain reaction from continuing. However, it is flame retardant after heating The agent participates in the reaction and is consumed, so the flame retardant effect is not good when burning continuously, and the combustion performance can only reach the B3 or B2 level. In addition, hexabromododecane is made into a flame retardant and will release toxic when used in foam insulation materials. substances, and will quickly produce toxic fumes when exposed to fire

Method used

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  • Resin composition, polystyrene board and preparation method for polystyrene board

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Embodiment 1

[0033] This embodiment provides a resin composition, including: a thermosetting resin mixture and a curing agent.

[0034] Among them, the mass ratio of polystyrene particles, thermosetting resin mixture and curing agent is shown in Table 1; the subcomponents and contents of thermosetting resin mixture and curing agent themselves are shown in Table 2.

[0035] This embodiment also provides a method for preparing a polystyrene board, and the above-mentioned resin composition is processed according to the following steps:

[0036] The polystyrene particles are pre-dried and cured to obtain polystyrene cured particles, and the thermosetting resin mixture and curing agent are added under stirring to obtain precursor particles;

[0037] Drying the precursor particles twice to obtain dry particles;

[0038] The dried granules are cured and heated to form polystyrene boards.

[0039] specifically,

[0040] After the polystyrene particles are pre-dried and matured, the expansion ra...

Embodiment 2

[0047] This embodiment provides a resin composition, including: a thermosetting resin mixture and a curing agent.

[0048] Among them, the mass ratio of polystyrene particles, thermosetting resin mixture and curing agent is shown in Table 1; the subcomponents and contents of thermosetting resin mixture and curing agent themselves are shown in Table 2.

[0049] This embodiment also provides a method for preparing a polystyrene board, and the above-mentioned resin composition is processed according to the following steps:

[0050] The polystyrene particles are pre-dried and cured to obtain polystyrene cured particles, and the thermosetting resin mixture and curing agent are added under stirring to obtain precursor particles;

[0051] Drying the precursor particles twice to obtain dry particles;

[0052] The dried granules are cured and heated to form polystyrene boards.

[0053] specifically,

[0054] After the polystyrene particles are pre-dried and cured, the expansion rati...

Embodiment 3

[0061] This embodiment provides a resin composition, including: a thermosetting resin mixture and a curing agent.

[0062] Among them, the mass ratio of polystyrene particles, thermosetting resin mixture and curing agent is shown in Table 1; the subcomponents and contents of thermosetting resin mixture and curing agent themselves are shown in Table 2.

[0063] Present embodiment also provides a kind of preparation method of polystyrene board, above-mentioned resin composition is processed according to the following steps:

[0064] The polystyrene particles are pre-dried and cured to obtain polystyrene cured particles, and the thermosetting resin mixture and curing agent are added under stirring to obtain precursor particles;

[0065] Drying the precursor particles twice to obtain dry particles;

[0066] The dried granules are cured and heated to form polystyrene boards.

[0067] specifically,

[0068] After the polystyrene particles are pre-dried and matured, the expansion ...

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Abstract

The invention provides a resin composition, a polystyrene board and a preparation method for the polystyrene board, which are used for solving the problem that an expanded polystyrene board in the prior art is poor in combustion performance, the board flows in a deformed manner, and the fire behaviors are easy to spread. The invention provides the resin composition, the polystyrene board and the preparation method for the polystyrene board. Thermosetting resin mixed liquor and a curing agent are added, so that the combustion performance level of the polystyrene board is improved; meanwhile, the board is thermosetting, almost unchanged in size during ignition combustion, does not flow and is self-extinguished without fire.

Description

technical field [0001] The invention relates to the technical field of thermal insulation materials, in particular to a resin composition, a polystyrene board and a preparation method thereof. Background technique [0002] Expanded polystyrene board is a closed-cell polystyrene foamed plastic board made of expandable polystyrene particles after heating and pre-foaming in a mold. It is widely used in the field of building interior and exterior wall insulation. , is the most widely used thermal insulation material in China. [0003] The main raw materials of ordinary expanded polystyrene boards are polystyrene, styrene, pentane and other organic combustibles, so the combustion performance can only reach B2 level, which cannot meet the requirements of relevant standards. [0004] Expanded polystyrene board generally adopts the following process: particle pre-expansion→drying→forming→cutting→packaging. [0005] The raw material particles of expanded polystyrene board are expan...

Claims

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Application Information

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IPC IPC(8): C08L61/10C08L61/00C08L61/28C08K13/02C08K3/38C08K5/42C08K3/22C08K3/34C08K3/04C08L25/06
Inventor 刘朋花海东王红潘倩
Owner JIANGSU WONIUSHAN THERMAL INSULATION & WATERPROOF TEHNOLOGY