Plastic alloy as well as preparation method and application thereof

A technology of plastic alloy and activated kaolin, applied in the field of plastics, can solve problems such as poor compatibility and mechanical properties, and achieve the effects of low cost, excellent tensile strength and simple operation

Active Publication Date: 2012-11-21
JIANGSU WATER SPECIAL MATERIAL MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the embodiment of the present invention provides a plastic alloy to solve the technical problem of poor compatibility and mechanical properties of the mixture of PPO resin and PP resin in the prior art

Method used

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  • Plastic alloy as well as preparation method and application thereof

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preparation example Construction

[0041] The embodiment of the present invention further provides a method for preparing a plastic alloy, comprising the following steps:

[0042]S01, surface-treating kaolin with a surface treatment agent to obtain activated kaolin;

[0043] S02, mix PP resin, PPO resin and compatibilizer, stir, dehumidify when the temperature reaches 75-85°C, add the activated kaolin, stir to obtain a premix, extrude and granulate to obtain a plastic alloy material.

[0044] Specifically, in step S01, the surface treatment agent and kaolin are the same as before, and will not be repeated here. Step S01 is specifically:

[0045] Stir the kaolin, dehumidify when the temperature reaches 70°C-85°C, add a surface treatment agent when the temperature reaches 115°C-155°C, stir for 3-8 minutes to obtain an activated kaolin precursor, cool to obtain activated kaolin. The cooling step is specifically carried out by putting the activated kaolin precursor into a cold mixer and cooling to 40-55° C. to ob...

Embodiment 1

[0054] The method for preparing a plastic alloy according to the embodiment of the present invention comprises the following steps:

[0055] (1) Preparation of 6000 mesh activated kaolin

[0056] Put 10 parts by weight of 6000-mesh activated kaolin powder into a high-speed mixer and stir at a high speed. When the temperature reaches 70°C, dehumidification starts. When the temperature reaches 115°C, add 0.5 parts by weight of silane coupling agent and mix for 3 minutes. , and then put the mixture in the high mixer into the cold mixer for cooling, and then discharge the material after cooling to 40°C to obtain surface-treated 6000-mesh activated kaolin;

[0057] (2) Preparation of 6000 mesh active kaolin filled modified PP / PPO alloy material premix

[0058] Put 37.2 parts by weight of PP, 16 parts by weight of PPO resin, 17 parts by weight of maleic anhydride, 7.5 parts by weight of bromotriazine and 7.5 parts by weight of antimony trioxide into a high mixer Mix and stir, and ...

Embodiment 2

[0062] The method for preparing a plastic alloy according to the embodiment of the present invention comprises the following steps:

[0063] (1) Preparation of 4000 mesh activated kaolin

[0064] Put 15 parts by weight of 4000 mesh activated kaolin powder into a high-speed mixer and stir at a high speed. When the temperature reaches 75°C, dehumidification starts. When the temperature reaches 120°C, add 0.5 parts by weight of titanate coupling agent and mix and stir 4 minutes, then put the mixed material in the high mixer into the cold mixer for cooling, and discharge after cooling to 45°C to obtain surface-treated 4000-mesh activated kaolin;

[0065] (2) Preparation of 4000 mesh active kaolin filled modified PP / PPO alloy material premix

[0066] Put the PP of 32.2 parts by weight, the PPO resin of 16 parts by weight, the polypropylene graft maleic anhydride of 17 parts by weight, the bromotriazine of 9 parts by weight and the antimony trioxide of 6 parts by weight Mix and st...

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Abstract

The invention provides a plastic alloy as well as a preparation method and application thereof, belonging to the technical field of plastics. The plastic alloy comprises the following components in parts by weight: 10-60 parts of PP (Polypropylene) resin, 10-45 parts of PPO (Polyphenylene Oxide) resin, 10.01-42 parts of active kaolin and 5-25 parts of compatilizer. Because the active kaolin subjected to surface treatment and a right amount of compatilizer are used, the plastic alloy has excellent mechanical properties including tensile strength, fracture extension rate, bending strength, bending modulus, notch impact strength, forming shrinkage rate and the like, and the PP resin and the PPO resin have excellent compatibility.

Description

technical field [0001] The invention belongs to the technical field of plastics, in particular to a plastic alloy, its preparation method and application. Background technique [0002] Poly(2,6-dimethyl 1,4-phenylene ether) (PPO) is an amorphous polar polymer with a glass transition temperature of about 205°C. Its heat resistance, water resistance, and electrical properties It has excellent physical and mechanical properties, good chemical stability, and is not easy to burn; the disadvantages are high melt viscosity, poor processability, crosslinking tendency, expensive price, and easy stress cracking of products. Polypropylene (PP) is a crystalline non-polar high polymer with low price, non-toxicity, good fluidity, easy processing, waste labor bending resistance, chemical resistance and electrical insulation performance, but it has poor rigidity and large molding shrinkage , Dimensional instability, poor low temperature impact performance and other deficiencies. Mixing PP...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L71/12C08K13/06C08K9/06C08K9/04C08K3/34B29B9/06
Inventor 谢迎洪杨永佳何征
Owner JIANGSU WATER SPECIAL MATERIAL MFG CO LTD
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