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Degradable flame-retardant polystyrene material and preparation method thereof

A polystyrene and raw material technology, applied in the field of degradable flame-retardant polystyrene material and its preparation, can solve problems such as cracking, low softening temperature, and dripping of flame-retardant polystyrene, so as to improve the scope of application and improve Use effect, effect of improving flame retardant performance

Pending Publication Date: 2022-01-11
宋明龙
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Polystyrene is a colorless and transparent thermoplastic, among which expanded polystyrene is commonly known as Styrofoam, which has a glass transition temperature higher than 100 degrees Celsius, so it is often used to make various disposable containers that need to withstand the temperature of boiling water , and disposable foam lunch boxes, etc.; polystyrene is made of styrene in an inert gas, the temperature is controlled within the range of 60-90 ° C, and dibenzoyl peroxide is used as a catalyst to polymerize to obtain a transparent block resin. That is, polystyrene. This kind of resin has high purity, good transparency and gloss. However, polystyrene has its shortcomings such as high brittleness, low softening temperature, and easy cracking, which seriously affect its use. In order to eliminate its shortcomings, Modified polystyrene appeared; the way to manufacture modified polystyrene is to copolymerize styrene monomer with other units, or to mix polystyrene with other polymers and interpolymers, among which flame-retardant polystyrene Ethylene is obtained by mixing polystyrene raw materials with various flame retardants, such as phosphorus-based flame retardants, silicon-based flame retardants, etc.
[0003] The existing flame-retardant polystyrene materials on the market are obtained by extruding and molding materials mixed with polystyrene and flame retardants. Therefore, when flame-retardant polystyrene materials are exposed to high temperatures, although they can prevent flame-retardant polystyrene The ethylene material burns, but the area where the flame-retardant polystyrene material is baked at high temperature will deform, and even flame-retardant polystyrene dripping will occur, and it will also affect other areas on the flame-retardant polystyrene material, and Flame-retardant polystyrene material is obtained by mixing polystyrene raw materials and flame retardants, which will cause the flame-retardant effect of each area of ​​the flame-retardant polystyrene material to be completely mixed when the flame-retardant polystyrene is baked at high temperature. It is determined by the degree of solubility, which will affect the overall use effect of flame-retardant polystyrene materials, which in turn has caused limitations in the performance of existing flame-retardant polystyrene materials.

Method used

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  • Degradable flame-retardant polystyrene material and preparation method thereof

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Embodiment approach

[0042] As an embodiment of the present invention, the inner layer 21 is composed of the following raw materials in parts by weight: thermoplastic resin: 100-130 parts, inorganic SiO 2 : 5-30 parts, nano Mg(OH) 2 : 35-50 copies, C 13 h 10 O: 30-40 parts, C 6 h 15 N: 25-30 parts, anti-dripping agent: 0-5 parts, plasticizer: 4-5 parts, heat stabilizer: 4-7 parts, antioxidant: 3-6 parts, light stabilizer: 4-8 parts Part; Described nano-magnesium hydroxide uses silane to modify it;

[0043] The outer layer 22 is composed of the following raw materials in parts by weight: chloroprene rubber: 80-100 parts, nitrile rubber: 10-15 parts, phosphorus-containing oligomer: 50-80 parts, C 8 h 8 O: 50-60 parts, magnesium powder: 2-5 parts, flame-retardant polyether polyol: 5-10 parts, styrene-based elastomer: 30-40 parts, CH 2 C l2 : 4-8 parts, anti-aging agent: 3-6 parts, thickener: 5-9 parts, accelerator: 4-7 parts, antioxidant: 8-15 parts; The polystyrene material is improved, and...

Embodiment 1

[0058] The preparation method of this degradable flame-retardant polystyrene material is as follows:

[0059] S1: Raw material collection: staff select thermoplastic resin, inorganic SiO 2 , Nano Mg(OH) 2 、C 13 h 10 O, C 6 h 15 N. Anti-dripping agent, plasticizer, heat stabilizer, antioxidant, and light stabilizer raw materials; the staff will transport the selected raw materials back to the storage site, seal the different raw materials in separate barrels, and put them on the sealed barrel Covering film; when used, the staff should select thermoplastic resins according to GB / T12670-2008, neoprene rubber according to GB / T 14647-2008, and nitrile rubber according to SH / T 1159-1992, and The remaining raw materials are selected according to national standards, so as to ensure the quality of the prepared raw materials; then the staff seal the raw materials in barrels alone, so as to prevent the raw materials from being mixed and contacting the substances in the external envi...

Embodiment 2

[0069] The preparation method of this degradable flame-retardant polystyrene material is as follows:

[0070] S1: Raw material collection: staff select thermoplastic resin, inorganic SiO 2 , Nano Mg(OH) 2 、C 13 h 10 O, C 6 h 15 N. Anti-dripping agent, plasticizer, heat stabilizer, antioxidant, and light stabilizer raw materials; the staff will transport the selected raw materials back to the storage site, seal the different raw materials in separate barrels, and put them on the sealed barrel Covering film; when used, the staff should select thermoplastic resins according to GB / T12670-2008, neoprene rubber according to GB / T 14647-2008, and nitrile rubber according to SH / T 1159-1992, and The remaining raw materials are selected according to national standards, so as to ensure the quality of the prepared raw materials; then the staff seal the raw materials in barrels alone, so as to prevent the raw materials from being mixed and contacting the substances in the external envi...

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Abstract

The invention relates to the field of polymer chemical synthesis, in particular to a degradable flame-retardant polystyrene material and a preparation method thereof. The degradable flame-retardant polystyrene material comprises a body and material strips, wherein the body is formed by mutually contacting and bonding adjacent material strips, the material strip is divided into an inner layer and an outer layer, the inner layer is a round strip formed by mixing, dissolving and molding a polystyrene raw material and a flame retardant through a processing device, a strip-shaped hard object is arranged at the center in the inner layer, the strip-shaped hard object is in a spiral shape, the outer layer is a flame-retardant adhesive, and the outer layer is coated on the outer wall of the inner layer after passing through a processing device According to the degradable flame-retardant polystyrene material disclosed by the invention, the arrangement mode of the material strips is changed, the material strips are divided into the inner layer and the outer layer, and the materials of the outer layer and the inner layer are improved, so that the flame-retardant property of the degradable flame-retardant polystyrene material is improved, and the use effect of the degradable flame-retardant polystyrene material is further improved; and the strip-shaped hard object is arranged in the center of the inner part of the inner layer, so that the strength of the degradable flame-retardant polystyrene material is improved.

Description

technical field [0001] The invention relates to the field of polymer chemical synthesis, in particular to a degradable flame-retardant polystyrene material and a preparation method thereof. Background technique [0002] Polystyrene is a colorless and transparent thermoplastic, among which expanded polystyrene is commonly known as Styrofoam, which has a glass transition temperature higher than 100 degrees Celsius, so it is often used to make various disposable containers that need to withstand the temperature of boiling water , and disposable foam lunch boxes, etc.; polystyrene is made of styrene in an inert gas, the temperature is controlled within the range of 60-90 ° C, and dibenzoyl peroxide is used as a catalyst to polymerize to obtain a transparent block resin. That is, polystyrene. This kind of resin has high purity, good transparency and gloss. However, polystyrene has its shortcomings such as high brittleness, low softening temperature, and easy cracking, which serio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L25/06C08L11/00C08L9/02C08L53/02C08K3/36C08K3/22C08K9/06B29C69/00B29L9/00
CPCC08L11/00C08K3/36C08K3/22C08K9/06B29C69/001C08K2201/011C08K2003/2224C08L2201/02C08L2201/06B29L2009/00C08L9/02C08L53/02C08L25/06
Inventor 宋明龙张成林
Owner 宋明龙