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A kind of high-strength, high-rigidity and transparent modified polypropylene composite material and preparation method thereof

A composite material and polypropylene technology, which is applied in the field of high-strength, high-rigidity and transparent modified polypropylene composite materials and their preparation, can solve the problems of high addition of mica, poor material appearance, and poor mechanical properties of composite materials. , to achieve the effects of high mechanical properties, improved transparency and enhanced tensile strength

Active Publication Date: 2020-11-24
WANHUA CHEM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention is to overcome the defects of high mica addition amount in the mica / polypropylene composite material in the prior art, the mechanical properties of the composite material are not outstanding, and the defects of the material appearance are not good, and to provide a high-strength, high-rigidity and transparent modified Polypropylene composite material and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] 1), take by weight 90 parts of polypropylene, 1 part of maleic anhydride grafted polypropylene, 0.3 part of antioxidant 1010, 0.4 part of antioxidant 168, 0.5 part of nucleating agent, 0.3 part of lubricant in high-mixing Mix in the machine for 2-3 minutes, stir and mix evenly;

[0049] 2), take out the raw materials mixed evenly in the step 1), pour them into the feed port of the twin-screw extruder, and add 10 parts of mica (HC800) to the post-position side feeding (section 8). Melt extrusion under the conditions of 180°C and 150 rpm, extruded into strips;

[0050] 3), the primary material obtained in the step 2) is cooled in a water tank and in the air, then cut into plastic particles by a granulator, injected into splines, and tested for mechanical properties respectively. The results are shown in Table 1.

Embodiment 2

[0052] 1), take 80 parts of polypropylene, 3 parts of maleic anhydride grafted polypropylene, 0.2 part of antioxidant 1010, 0.4 part of antioxidant 168, 0.4 part of nucleating agent, and 0.4 part of lubricant in a high mixer and mix 2 -3 minutes, stir to mix evenly;

[0053] 2), take out the raw material mixed evenly in the step 1), pour it into the feed port of the twin-screw extruder, and add 20 parts of mica (HC800) to the post-side feeding (section 8), at temperature Melt extrusion under the conditions of 200°C and 180 rpm, extruded into strips;

[0054] 3), the primary material obtained in the step 2) is cooled in a water tank and in the air, then cut into plastic particles by a pelletizer, then cut into plastic particles by a pelletizer, and injected into splines, respectively. The results of the mechanical properties test are shown in Table 1.

Embodiment 3

[0056] 1), take 70 parts of polypropylene, 5 parts of maleic anhydride grafted polypropylene, 0.2 part of antioxidant 1010, 0.3 part of antioxidant 168, 0.3 part of nucleating agent, and 0.5 part of lubricant in a high-mixer and mix 2 -3 minutes, stir to mix evenly;

[0057] 2), take out the raw material mixed evenly in the step 1), pour it into the feed port of the twin-screw extruder, and add 30 parts of mica (HC800) to the post side feeding (section 8), and the Melt extrusion under the conditions of 210°C and 200 rpm, extruded into strips;

[0058] 3), the primary material obtained in the step 2) is cooled in a water tank and in the air, then cut into plastic particles by a pelletizer, then cut into plastic particles by a pelletizer, and injected into splines, respectively. The results of the mechanical properties test are shown in Table 1.

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Abstract

The invention discloses a high-strength, high-rigidity and transparent modified polypropylene composite material and a preparation method thereof. The composite material comprises polypropylene, fluorophlogopite, compatibilizer, antioxidant, nucleating agent, lubricant, optional zinc oxide whiskers and optional nano zinc oxide. By adding fluorophlogopite through side feeding, the obtained composite material has extremely high mechanical properties, which can realize low filling and high performance of the composite material. The polypropylene composite exhibits transparency while being reinforced. Further, through the combination of zinc oxide whiskers and fluorine phlogopite, the blank area of ​​the matrix generated by the bridging between small-sized zinc oxide whiskers and flake mica can be realized, and combined with the nano-advantages of nano-zinc oxide in polymer reinforcement, The synergistic enhancement of different scales of micro and nano fillers in the matrix material is fully utilized to effectively realize the low filling and high performance of polypropylene materials.

Description

technical field [0001] The invention belongs to the technical field of polypropylene composite materials, and in particular relates to a high-strength, high-rigidity and transparent modified polypropylene composite material and a preparation method thereof. Background technique [0002] Polypropylene plastic is a kind of thermoplastic resin prepared by polymerization of propylene. It is usually colorless and translucent, odorless and non-toxic. It can be sterilized by steam and corrosion-resistant. Its mechanical properties and transparency are better than polyethylene. It is a comprehensive General purpose plastic with excellent properties. The most important thing is that it can be modified by blending, strengthening, filling, etc., so as to realize the general plastic engineering and high performance of polypropylene materials, and meet its application in household appliances, automotive interior and exterior parts, fitness, office supplies and The needs of application f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L51/06C08K13/04C08K7/08C08K3/34C08K5/098C08K13/02
CPCC08K2201/011C08L23/12C08L2201/10C08L51/06C08K13/04C08K7/08C08K3/34C08K5/098C08K13/02
Inventor 李保印陈海波张文勇李旭顾永江
Owner WANHUA CHEM GRP CO LTD
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