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A kind of organic-inorganic hybrid nano-compatibilizer based on poss and its preparation and application

A compatibilizer and hybridization technology, which is applied in the field of POSS-based organic-inorganic hybrid nano-compatibilizer and its preparation and application, can solve problems such as poor compatibility, and achieve the effect of improved scratch resistance and strong resistance

Active Publication Date: 2019-11-08
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a kind of organic-inorganic hybrid nano-compatibilizer based on POSS and its preparation and application. The purpose of the present invention is to overcome the poor compatibility of polypropylene and polyamide, improve the Compatibility with long glass fiber composites

Method used

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  • A kind of organic-inorganic hybrid nano-compatibilizer based on poss and its preparation and application
  • A kind of organic-inorganic hybrid nano-compatibilizer based on poss and its preparation and application

Examples

Experimental program
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Effect test

Embodiment 1

[0025] Preparation of PP-poss-MAH compatibilizer: the mass fractions of the system are: polypropylene: 94.9%, maleic anhydride: 4%, initiator: 0.3%, octavinyl POSS: 0.8%.

[0026] Weigh 47.45g of polypropylene, 2g of maleic anhydride, 0.15g of dicumyl peroxide, and 0.4g of octavinyl POSS, and mix them in a high-speed mixer at 1200r / min for 5min, then at 180°C with a rotation speed of 90r / min Extrude the masterbatch in a special extruder, and dry the masterbatch at 70°C for 8 hours, the color of the yellow particles will become lighter.

Embodiment 2

[0028] Purification of PP-poss-MAH compatibilizer: Weigh 1g of masterbatch into a 250ml round bottom flask, add 100ml of xylene, heat and reflux at 120°C for 30min, wait until it is completely dissolved, transfer the solution to an unheated In 100ml of acetone, a white emulsion was formed, which was subjected to static precipitation for 3 hours, and filtered with suction to obtain a white yellowish solid, which was dried at 70°C for 8 hours.

Embodiment 3

[0030] Application of PP-poss-MAH compatibilizer in PP / PA long glass fiber composites: the mass fractions of the system composition are: the amount of compatibilizer 3%, PP: 59%, PA: 9%, long glass fiber : 29%.

[0031] Weigh 3g of compatibilizer, 59g of polypropylene, 9g of polyamide and 29g of long glass fiber and mix them in a high-speed mixer at 1200r / min for 5min, then extrude the masterbatch in an extruder at 200°C with a speed of 220r / min .Make standard splines for mechanical performance testing.

[0032] Tensile properties are tested according to ISO 527 standard ( figure 1 ), A in the figure is the tensile strength of the composite material obtained using the PP-g-MAH compatibilizer, and its value is 120Mpa, and B is the tensile strength of the composite material obtained with the PP-poss-MAH compatibilizer, and its value is 131Mpa; impact performance is tested according to ISO 180 standard ( figure 2 ); A in the figure is the impact strength of the composite mat...

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Abstract

The invention relates to a POSS-based organic-inorganic hybrid nano compatibilizer and preparation and application thereof. The compatibilizer comprises the following raw materials by mass percentage: 93%-99% of polypropylene, 2%-5% of maleic anhydride, 0.2%-0.5% of an initiator, 0.5-2% of octavinyl POSS. The preparation comprises the following steps: adding the maleic anhydride, the initiator and the octavinyl POSS into the polypropylene powder, mixing, preparing master batch through the extrusion pelleting process, drying, purifying to obtain the compatibilizer. The compatibilizer is applied in a PP / PA long glass fiber composite material. Compared with the tensile strength of the composite material extruded by using a single PP-g-MAH compatibilizer, the tensile strength of the composite material is improved by 7%-9%, and the impact property thereof is improved by 8%-12%. The novel composite material generates the stronger resistance while scratched by an external force, and the scratching resistance is improved.

Description

technical field [0001] The invention belongs to the field of compatibilizer and its preparation and application, in particular to a POSS-based organic-inorganic hybrid nano-compatibilizer and its preparation and application. Background technique [0002] The preparation of maleic anhydride grafted polypropylene is one of the methods to realize the high performance of polypropylene. This is because adding a small amount of maleic anhydride-grafted polypropylene can greatly enhance the adhesion between polypropylene and inorganic fillers, and significantly improve the impact strength, tensile strength, and bending strength of modified polypropylene. However, the traditional maleic anhydride grafted polypropylene is relatively single, with low thermal stability and low crystallinity. The octamer cage-like silsesquioxane particles are a new type of organic / inorganic nanoparticles that have emerged in recent years, referred to as POSS, which has a significant nano-effect. POSS w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L77/00C08L51/00C08F291/06C08F222/06
CPCC08F255/02C08F283/12C08L23/12C08L2205/035C08L2205/08C08L77/00C08L51/06C08L51/08C08K7/14C08F222/06
Inventor 徐洪耀魏刚张超光善仪
Owner DONGHUA UNIV
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