PC/EVA composition and preparation method thereof

A composition and copolymer technology, applied in the field of PC/EVA composition and its preparation, can solve problems such as inability to apply and poor compatibility, and achieve the effects of improving interface bonding ability, improving mechanical properties and excellent compatibility

Pending Publication Date: 2022-01-07
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, it is necessary for the present invention to provide a PC / EVA composition and a preparation method thereof. By compounding POE-g-MAH and ethylene methyl acrylate copolymer for practical use, the interfacial bonding ability of each phase is improved, and the combined The compatibility of the material is excellent, and the mechanical properties of the product are greatly improved, which solves the technical problem in the prior art that the compatibility between PC and EVA is poor and cannot be applied after direct blending

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Weigh 100 parts of PC, 20 parts of EVA, 5 parts of PTT, 10 parts of POE-g-MAH, 5 parts of ethylene methyl acrylate copolymer, 0.5 parts of antioxidant and 5 parts of silane coupling agent KH-550 in parts by weight After mixing, a uniform mixed material is obtained; the mixed material is added from the main feeding port, and 20 parts of glass fibers are added from the side feeding port, and the PC / EVA is obtained by melting and extruding granulation through a twin-screw extruder. combination.

[0035] The extrusion temperatures of each extrusion zone in the twin-screw extruder are 200°C, 210°C, 220°C, 230°C, 240°C, 240°C, 240°C, 240°C, 240°C, 240°C respectively.

Embodiment 2

[0037] Weigh 100 parts of PC, 30 parts of EVA, 10 parts of PTT, 15 parts of POE-g-MAH, 10 parts of ethylene methyl acrylate copolymer, 1 part of antioxidant and 8 parts of silane coupling agent KH-550 in parts by weight After mixing, a uniform mixed material is obtained; the mixed material is added from the main feeding port, and 40 parts of glass fibers are added from the side feeding port, and the PC / EVA is obtained by melting and extruding granulation through a twin-screw extruder. combination.

[0038] The extrusion temperatures of each extrusion zone in the twin-screw extruder are 200°C, 210°C, 220°C, 230°C, 240°C, 240°C, 240°C, 240°C, 240°C, 250°C respectively.

Embodiment 3

[0040] Weigh 100 parts of PC, 25 parts of EVA, 8 parts of PTT, 12 parts of POE-g-MAH, 8 parts of ethylene methyl acrylate copolymer, 0.8 parts of antioxidant and 6 parts of silane coupling agent KH-550 in parts by weight After mixing, a uniform mixed material is obtained; the mixed material is added from the main feeding port, and 30 parts of glass fibers are added from the side feeding port, and the PC / EVA is obtained by melting and extruding granulation through a twin-screw extruder. combination.

[0041] The extrusion temperatures of each extrusion zone in the twin-screw extruder are 200°C, 210°C, 210°C, 220°C, 220°C, 230°C, 230°C, 240°C, 240°C, 250°C respectively.

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PUM

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Abstract

The invention discloses a PC / EVA composition and a preparation method thereof. The PC / EVA composition is prepared from 100 parts by weight of PC, 20-30 parts by weight of EVA, 5-10 parts by weight of PPT, 20-40 parts by weight of glass fibers, 10-15 parts by weight of POE-g-MAH, 5-10 parts by weight of an ethylene methyl acrylate copolymer, 0.5-1 part by weight of an antioxidant and 5-8 parts by weight of a silane coupling agent KH-550. The PC / EVA composition is excellent in compatibility and excellent in product mechanical property, and has application prospects.

Description

technical field [0001] The invention belongs to the field of polymer material modification, and in particular relates to a PC / EVA composition and a preparation method thereof. Background technique [0002] As an engineering plastic, polycarbonate (PC) has high impact strength, excellent creep resistance, good electrical insulation and dimensional stability, but due to its high melt viscosity, poor fluidity, solvent resistance and The wear resistance is relatively poor, and the injection molded parts are prone to stress cracking, so its application is limited. When the content of vinyl acetate in EVA is lower than 20%, it can be used as plastic at this time. [0003] EVA has good low temperature resistance, and its thermal decomposition temperature is low, about 230°C. With the increase of molecular weight, the softening point of EVA increases, and the processability and surface gloss of plastic parts decrease, but the strength increases and the impact The toughness and env...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L23/08C08L51/06C08K7/14C08K5/134C08K5/544
CPCC08L69/00C08L2205/035C08L2205/02C08L2205/08C08L23/0853C08L23/0869C08L51/06C08K7/14C08K5/1345C08K5/544
Inventor 杨桂生吴安琪姚晨光蒋超杰
Owner HEFEI GENIUS NEW MATERIALS
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