Modified AS resin and preparation method thereof

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 ...

Examples

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.

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 ...

Examples

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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