PMMA/MBS surface layer co-extrusion material and preparation method thereof

A surface layer and raw material technology is applied in the field of PMMA/MBS surface layer co-extrusion material and its preparation, which can solve the problems of high cost and high price of co-extrusion material, and achieve the effects of cost reduction, low price and simple preparation process.

Inactive Publication Date: 2013-08-28
GUANGDONG HUASHENG ELECTRICAL APPLIANCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high price of ASA resin, the cost of PMMA / ASA component-based surface layer co-extrusion is relatively high

Method used

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  • PMMA/MBS surface layer co-extrusion material and preparation method thereof

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Effect test

preparation example Construction

[0053] A kind of preparation method of PMMA / MBS surface layer co-extrusion material, its steps are as follows:

[0054]1) Grind polymethyl methacrylate to 50-300 mesh, then stir and mix with other raw materials;

[0055] 2) Put the mixed material into the feeding hopper of the double-stage twin-screw extruder, after the first-stage twin-screw shears and melts, it enters the second-stage single-screw, is sheared by the single-screw, extruded, and granulated , dried to obtain PMMA / MBS component-type surface layer co-extrusion material;

[0056] Among them, the temperature settings are as follows: the first-stage twin-screw first zone is 170-180°C, the second-stage temperature is 185-200°C, the third-stage temperature is 170-180°C, and the second-stage single-screw temperature is 195-210°C;

[0057] Wherein, the raw materials used are as described above.

[0058] Preferably, in step 1), the stirring speed is 100-500 rpm.

Embodiment

[0062] Co-extrusion material 1# is made of the following raw materials in parts by weight:

[0063] 60 parts of PMMA,

[0064] MBS 35 copies,

[0065] 7.0 parts of light calcium carbonate,

[0066] Polyethylene wax 0.5 part,

[0067] Antioxidant 0.5 part,

[0068] 0.4 part of ultraviolet absorber,

[0069] Pigment 0.4 parts.

[0070] Co-extrusion material 2# is made of the following raw materials in parts by weight:

[0071] 65 parts of PMMA,

[0072] MBS 30 copies,

[0073] 5.0 parts of heavy calcium carbonate,

[0074] 0.6 parts of stearic acid,

[0075] Antioxidant 0.8 part,

[0076] 0.8 part of ultraviolet absorber,

[0077] Pigment 0.4 parts.

[0078] Co-extrusion material 3# is made of the following raw materials in parts by weight:

[0079] PMMA 70 parts,

[0080] MBS 25 copies,

[0081] 3.0 parts of talcum powder,

[0082] Zinc stearate 0.5 parts,

[0083] Antioxidant 0.2 part,

[0084] 0.4 part of ultraviolet absorber,

[0085] Pigment 0.4 parts.

...

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Abstract

The invention discloses a PMMA/MBS surface layer co-extrusion material and a preparation method thereof, wherein using polymethyl methacrylate and polymethyl methacrylate-butadiene-styrol copolymer as main body materials, the PMMA/MBS surface layer co-extrusion material are prepared by through a double-stage double screw extruder. Compared with a traditional PMMA/ASA surface layer co-extrusion material, the stretching and impact performances of the PMMA/MBS surface layer co-extrusion material are greatly raised. Because the price of a main raw material of polymethyl methacrylate-butadiene-styrol copolymer is low, the cost of the co-extrusion material is greatly reduced. Simultaneously, a preparation technology is simple, and co-extrusion material is suitable for large scale production and usage.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a PMMA / MBS surface layer co-extrusion material and a preparation method thereof. Background technique [0002] Co-extrusion technology has been used in PVC building materials industry for about 10 years. As early as the end of the 1990s, the concept of colored co-extruded doors and windows was proposed, but it was not until 2000 that there was a mature product officially oriented to the market. PVC plastic doors and windows have been widely popularized and applied in China, but because the molecular structure of PVC contains unstable chlorine elements, it is easy to cause yellowing, redness and deformation when exposed to sunlight. In order to solve this problem, the current method usually used is to co-extrude a layer of resin or modified plastic with high gloss, good weather resistance, good compatibility with PVC, and high impact strength on the surface ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L33/12C08L33/04C08K3/26C08K3/34B29C47/92B29C48/92
CPCB29C48/04B29C48/397B29C48/40B29C48/875B29C48/92B29C2948/92704B29C2948/92895
Inventor 蒋永清张建平杨应龙
Owner GUANGDONG HUASHENG ELECTRICAL APPLIANCES
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