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Modified AS resin and preparation method thereof

A resin and modification technology, applied in the field of modified AS resin and its preparation, can solve the problems of high bending strength and notched impact strength, limited improvement of impact strength, affecting the use range of materials, etc., so as to improve hardness and improve impact strength. Effect

Inactive Publication Date: 2018-04-17
CHENGDU KALEFU HIGH POLYMER MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the impact strength of the existing glass fiber reinforced AS composite material is limited while its rigidity is improved, and the material changes from transparent to white foggy opaque material, which greatly affects the scope of use of the material.
[0004] A low-odor glass fiber reinforced AS composition, the application number is CN201310666754.6, which discloses the technical scheme of using glass fiber reinforced AS resin. The tensile strength of the obtained product can reach 118MPa, and the bending strength can reach 170MPa, but its fracture The elongation is only 3%, which cannot meet the requirements of increasing the tensile strength while increasing the elongation at break, and the resulting product has poor transparency
[0005] A high-toughness transparent reinforced AS material and its preparation method, the application number is CN201511004700.9, which discloses the technical solution of using glass fiber reinforced AS resin, but it cannot meet the requirements of improving tensile strength, bending strength and notched impact strength at the same time. Has high hardness and elongation at break

Method used

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  • Modified AS resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A preparation method of modified AS resin, comprising the following steps:

[0027] 1) Weigh 40 parts of AS resin, 15 parts of glass fiber, 10 parts of EPDM and MAH graft copolymer, 5 parts of MBS, 15 parts of CPE, 35 parts of triisopropanolamine, and 10 parts of thioglycolic acid in a high mixer and mix them , the temperature is 220°C to obtain the premix; 2) Add the premix to the main feeding port of the extruder, add 5 parts of PMMA from the side feeding port of the extruder, and melt and extrude the pellets through the extruder to obtain .

Embodiment 2

[0029] A preparation method of modified AS resin, comprising the following steps:

[0030] 1) Weigh 48 parts of AS resin, 18 parts of glass fiber, 12 parts of EPDM and MAH graft copolymer, 8 parts of MBS, 18 parts of CPE, 38 parts of triisopropanolamine, 12 parts of thioglycolic acid and mix them in a high mixer , the temperature is 230°C to obtain the premix; 2) Add the premix to the main feeding port of the extruder, add 6 parts of polystyrene from the side feeding port of the extruder, melt and extrude the pellets through the extruder , that is.

Embodiment 3

[0032] A preparation method of modified AS resin, comprising the following steps:

[0033] 1) Weigh 55 parts of AS resin, 20 parts of glass fiber, 25 parts of EPDM and MAH graft copolymer, 9 parts of MBS, 20 parts of CPE, 40 parts of triisopropanolamine, and 15 parts of thioglycolic acid in a high mixer and mix them , the temperature is 240°C to obtain the premix; 2) Add the premix to the main feeding port of the extruder, add 7 parts of polystyrene from the side feeding port of the extruder, and melt and extrude the pellets through the extruder , that is.

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Abstract

The invention belongs to the field of macromolecule composite materials, and particularly relates to modified AS resin. The resin is prepared from, by weight, 40-55 parts of AS resin, 5-7 parts of addition agent, 15-20 parts of glass fiber, 10-25 parts of EPDM and MAH graft copolymer, 5-9 parts of MBS, 15-20 parts of CPE, 35-40 parts of triisopropanolamine and 10-15 parts of thioglycollic acid. According to the modified AS resin, the problem is solved that in the prior art, after the glass fiber is added, products can be in a white mist shape and are not transparent.

Description

technical field [0001] The invention belongs to the field of polymer composite materials, and in particular relates to a modified AS resin and a preparation method thereof. Background technique [0002] AS resin is a product obtained by copolymerization of styrene (St) and acrylonitrile (AN). AS resin is an amorphous colorless and transparent thermoplastic resin with uniform high gloss, dimensional stability, oil resistance, chemical resistance and superior heat resistance, rigidity and safety. Widely used in cosmetic outer boxes, lighter shells, food processing containers, battery shells. Adding glass fiber to AS resin can improve its mechanical strength, and the material has a small linear expansion coefficient and low shrinkage rate, and is suitable for making cross-flow fan blades, axial-flow fan blades, centrifugal fan blades and other high-strength parts. At the same time, the use of glass fiber reinforced AS material can reduce the frictional resistance between the ...

Claims

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Application Information

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IPC IPC(8): C08L25/12C08L51/04C08L23/28C08L33/12C08K13/04C08K7/14C08K5/17C08K5/37
CPCC08L25/12C08K2201/003C08K2201/004C08L2205/025C08L2205/035C08L51/04C08L23/286C08L33/12C08K13/04C08K7/14C08K5/17C08K5/37C08L25/06
Inventor 王咸培罗巧技
Owner CHENGDU KALEFU HIGH POLYMER MATERIALS CO LTD
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