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Polystyrene micro-foaming material with high strength, low thermal expansion and excellent high and low temperature resistance

A low thermal expansion, high and low temperature resistant technology, used in the field of foam materials to achieve high strength

Active Publication Date: 2021-08-24
HUANGSHAN MEISEN NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the fact that the above-mentioned foaming materials cannot simultaneously satisfy the above-mentioned high strength, low thermal expansion, and excellent high and low temperature resistance, and in the actual construction process, materials with the above-mentioned properties are urgently needed to be suitable for applications in different environments. Therefore, it is necessary To improve the above defects, invent a polystyrene micro-foaming material with high strength, low thermal expansion, high and low temperature resistance

Method used

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  • Polystyrene micro-foaming material with high strength, low thermal expansion and excellent high and low temperature resistance
  • Polystyrene micro-foaming material with high strength, low thermal expansion and excellent high and low temperature resistance

Examples

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Effect test

Embodiment 1

[0097] The preparation method of the polystyrene micro-foaming material with high strength, low thermal expansion, high and low temperature resistance, comprises the following steps:

[0098] (1) Vacuum-dry all raw materials at 75°C for 1.5h to control the moisture within 2%;

[0099] (2) Fully stir the E-44 epoxy resin and triglycidyl isocyanurate for 0.8h, so that the triglycidyl isocyanurate is evenly dispersed in the E-44 epoxy resin solution, and then evenly sprayed on the basalt fiber powder The surface is mixed for 1.5h until it is uniform, and the modified basalt fiber powder is obtained;

[0100] (3) Send the modified basalt fiber powder and general-purpose polystyrene to the mixer, fully stir and mix at room temperature for 0.8h until it is uniform, and obtain a primary premix;

[0101] (4) Add the primary premixed material into the twin-screw extruder, extrude and granulate to obtain the primary modified material; the extrusion process conditions are: the temperatu...

Embodiment 2

[0107] The preparation method of the polystyrene micro-foaming material with high strength, low thermal expansion, high and low temperature resistance, comprises the following steps:

[0108] (1) Vacuum-dry all the raw materials at 70°C for 1 hour to control the moisture within 2%;

[0109] (2) Fully stir the E-44 epoxy resin and triglycidyl isocyanurate for 0.5h, so that the triglycidyl isocyanurate is evenly dispersed in the E-44 epoxy resin solution, and then evenly sprayed on the basalt fiber powder The surface is mixed for 1h until it is uniform, and the modified basalt fiber powder is obtained;

[0110] (3) Send the modified basalt fiber powder and general-purpose polystyrene to the mixer, fully stir and mix at room temperature for 0.5h until it is uniform, and obtain a primary premix;

[0111] (4) Add the primary premixed material to the twin-screw extruder, extrude and granulate to obtain the primary modified material; the extrusion process conditions are: the tempera...

Embodiment 3

[0116] The preparation method of the polystyrene micro-foaming material with high strength, low thermal expansion, high and low temperature resistance, comprises the following steps:

[0117] (1) Vacuum-dry all raw materials at 80°C for 2 hours to control the moisture content within 2%;

[0118] (2) Fully stir E-44 epoxy resin and triglycidyl isocyanurate for 1 hour, so that triglycidyl isocyanurate is evenly dispersed in the E-44 epoxy resin solution, and then evenly sprayed on the surface of basalt fiber powder Mixed for 2h until it is uniform to obtain modified basalt fiber powder;

[0119] (3) Send the modified basalt fiber powder and general-purpose polystyrene to the mixer, fully stir and mix at room temperature for 1 hour until it is uniform, and obtain a primary premix;

[0120] (4) Add the primary premixed material into the twin-screw extruder, extrude and granulate to obtain the primary modified material; the extrusion process conditions are: the barrel temperature ...

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Abstract

The invention belongs to the technical field of foaming materials, and particularly relates to a polystyrene micro-foaming material with high strength, low thermal expansion and excellent high and low temperature resistance and a preparation method thereof. The micro-foaming material provided by the invention mainly comprises the following raw materials in parts by weight: 20-60 parts of general-purpose polystyrene, 8 to 18 parts of a methyl methacrylate-butadiene-styrene terpolymer, 10 to 20 parts of a styrene-maleic anhydride copolymer, 4 to 8 parts of E-44 epoxy resin, 8 to 20 parts of basalt fiber powder, and 2 to 5 parts of triglycidyl isocyanurate. According to the invention, the methyl methacrylate-butadiene-styrene terpolymer obtained by rigid matching of general-grade polystyrene is used as a raw material, so that the strength and toughness of a final product are ensured; and active carboxyl in the styrene-maleic anhydride copolymer is combined with E-44 epoxy resin, triglycidyl isocyanurate and epoxidized soybean oil for curing in the forming process, so that the final product has high bending strength and tensile strength, low linear thermal expansion coefficient and excellent high and low temperature resistance.

Description

technical field [0001] The invention belongs to the technical field of foaming materials, and in particular relates to a polystyrene micro-foaming material with high strength, low thermal expansion and excellent high and low temperature resistance, and also relates to a preparation method of the foaming material. Background technique [0002] Compared with wood-plastic products, polystyrene micro-foaming materials have the advantages of low cost, good long-term water resistance, light weight, no mold, and good application durability, so they are widely used, such as patent documents CN201110222462.4, CN201110206054. X, but due to the insufficient strength of the general-purpose polystyrene resin material itself, and a relatively large amount of impact-resistant polystyrene is used in the above-mentioned formula, the bending strength and tensile strength of the final profile are further reduced, and its bending resistance The strength and tensile strength are low, generally b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L25/06C08L33/12C08L35/06C08K9/04C08K7/10C08J9/08
CPCC08J9/0061C08J9/08C08J9/009C08J9/0085C08J2203/02C08J2325/06C08J2433/12C08J2435/06
Inventor 盛岳金赵小亮
Owner HUANGSHAN MEISEN NEW MATERIAL TECH