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High-impact resistance polycarbonate composite material and preparation method for same

A polycarbonate and composite material technology, applied in the field of high-impact polycarbonate composite materials and their preparation, can solve the problems of difficulty in applying high-impact properties, poor compatibility, and difficulty in processing ultra-high molecular weight polyethylene.

Active Publication Date: 2015-06-03
DONGGUAN HONOUR E P
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, ultra-high molecular weight polyethylene is difficult to process, has poor compatibility with other polymers, and is difficult to improve its processability from the formula. Therefore, many domestic and foreign experts have been studying the use of extruders to improve processing problems.
However, no suitable method has been found so far, making it difficult to apply to other fields such as helmets that require high impact resistance
[0004] Therefore, there is currently no composite material based on polycarbonate that can achieve better performance in terms of impact strength.

Method used

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Experimental program
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Effect test

Embodiment 1

[0065] A kind of preparation method of high-impact polycarbonate composite material, it is characterized in that: comprise following preparation steps:

[0066] The first step: preparing ultra-high molecular weight polyethylene dispersion masterbatch, including the following steps:

[0067] Step 1: Weigh 60 parts of ultra-high molecular weight polyethylene, 40 parts of polyethylene grafted maleic anhydride, 30 parts of nano-montmorillonite, 0.1 part of primary antioxidant 1076, and 1 part of secondary antioxidant 168, and put them into Mix in a mixer for 20 minutes;

[0068] Step 2: The raw materials mixed in step 1 are put into a twin-screw extruder, and melted and extruded to obtain an ultra-high molecular weight polyethylene dispersion masterbatch.

[0069] Among them, the temperature of each temperature control zone of the twin-screw extruder is 230°C for temperature control zone 1-2, 260°C for temperature control zone 3-4, and 270°C for temperature control zone 5-6. The...

Embodiment 2

[0075] The first step: preparing ultra-high molecular weight polyethylene dispersion masterbatch, including the following steps:

[0076] Step 1: Weigh 55 parts of ultra-high molecular weight polyethylene, 45 parts of high-density polyethylene grafted maleic anhydride, 25 parts of nano-montmorillonite, 0.2 part of primary antioxidant 1010, 0.8 part of secondary antioxidant 626, Put into the mixer and mix for 25 minutes;

[0077] Step 2: The raw materials mixed in step 1 are put into a twin-screw extruder, and melted and extruded to obtain an ultra-high molecular weight polyethylene dispersion masterbatch.

[0078] Among them, the temperature of each temperature control zone of the twin-screw extruder, the temperature of the temperature control zone 1-2 is 240°C, the temperature of the temperature control zone 3-4 is 240°C, the temperature of the temperature control zone 5-6 is 280°C, the temperature control The temperature in zone 7-8 is 280°C, and the temperature in zone 9-1...

Embodiment 3

[0084] A kind of preparation method of high-impact polycarbonate composite material, it is characterized in that: comprise following preparation steps:

[0085] The first step: preparing ultra-high molecular weight polyethylene dispersion masterbatch, including the following steps:

[0086] Step 1: Weigh 45 parts of ultra-high molecular weight polyethylene, 55 parts of polypropylene grafted maleic anhydride, 20 parts of nano-montmorillonite, 0.3 part of primary antioxidant 1076, 0.6 part of secondary antioxidant PEPQ and 0.4 part Bis(3,5-di-tert-butyl-4-hydroxyphenylpropionyl) hydrazide was put into the mixer and mixed for 30 minutes;

[0087] Step 2: The raw materials mixed in step 1 are put into a twin-screw extruder, and melted and extruded to obtain an ultra-high molecular weight polyethylene dispersion masterbatch.

[0088] Among them, the temperature of each temperature control zone of the twin-screw extruder is 260°C for temperature control zone 1-2, 250°C for temperat...

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Abstract

The invention relates to the technical field of preparation of modified polycarbonate resin, in particular to a high-impact resistance polycarbonate composite material and a preparation method for the same. The preparation method comprises the following steps of pre-dispersing, mixing and granulating ultrahigh molecular weight polyethylene, a compatilizer, nano-montmorillonite, a primary antioxidant and a secondary antioxidant, and mixing and granulating the granulated mixture, polycarbonate, a toughening agent, ultrahigh molecular weight polyethylene dispersed master batches, the primary antioxidant, the secondary antioxidant, a lubricating agent and a flow modifier to obtain the high-impact resistance polycarbonate composite material. The high-impact resistance polycarbonate composite material has stronger mechanical strength, ultra-strong impact strength, strong mechanical strength and high processibility, and can be applied to the high-end helmet market and explosion-proof armor materials instead of fiberglass-reinforced plastics.

Description

Technical field [0001] The present invention involves the field of modified polycarbonate resin technology, and specifically involves a composite material and preparation method of high -resistant polycarbonate. Background technique [0002] Polycarbonate has been widely used in many fields because of its good mechanical intensity.With the development of the economy and the improvement of the quality of people's lives, people have made higher and higher requirements for materials. The most expected to achieve a multifunctional use of materials is polymer composite materials.At present, most of the propylene-butadiene-styrene (ABS) is used in the helmet market as the substrate, while the high-end helmet uses polycarbonate (PC) / ABS alloys, but the impact strength, modulus, surface hardness and other properties are subject toHigh cost.The highest -end is military helmets, but it has higher requirements for materials and craftsmanship. [0003] As another new material, the performanc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L69/00C08L23/06C08L51/06C08L51/04C08K13/02C08K3/34C08K5/134C08K5/526C08K5/103C08J3/22B29C47/92B29C48/92
CPCB29C48/92
Inventor 马述伟李红刚祝学远周雀平
Owner DONGGUAN HONOUR E P
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