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High-softening-point ultra-high-molecular-weight polyethylene alloy material and preparation method thereof

An ultra-high molecular weight and alloy material technology, which is applied in the field of ultra-high molecular weight polyethylene alloy materials and its preparation, can solve the problems of low Vicat softening point and cannot withstand high temperature and rebound speed, and achieves high Vicat softening point and good low temperature. The effect of high performance and heat distortion temperature

Inactive Publication Date: 2015-11-04
QIQIHAR NORTH KUN SYNTHETIC POLYMER MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The present invention is to overcome the existing polyamide (PA) / (ultra) high molecular weight polyethylene (UHMWPE) plastic alloy material Vicat softening point is low and not resistant to high temperature and the problem of slow rebound speed existing in the background technology, and provides a kind of Ultra-high molecular weight polyethylene alloy material with high softening point

Method used

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  • High-softening-point ultra-high-molecular-weight polyethylene alloy material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0018] The maleic anhydride grafting of 50g ultra-high molecular weight polyethylene resin, 30g nylon 6 resin, 5.5g inorganic nano-calcium, 2g compatibilizer KT-3, 0.5g chain extender SMC-3010, 12g ultra-high molecular weight polyethylene UHMWPE-g-MAH, the above-mentioned nylon 6 and inorganic nano-materials are dried in a dryer until the water content reaches less than 0.1%; then the dried nylon 6 resin, inorganic nano-materials, and the above-mentioned chain extender , compatibilizer and UHMWPE-g-MAH were mixed in a high-speed mixer for 5 minutes, and mixed evenly; the above-mentioned mixture was added to a twin-screw extruder for melting and mixing, plasticized, extruded and granulated, and the twin-screw process temperature was 210°C , the extrusion speed is 100r / min, and the alloy material is obtained, and the obtained material is prepared in an injection machine at a process temperature of 250°C to prepare a sample.

Embodiment 2

[0020] Weigh 45g ultra-high molecular weight polyethylene resin, 32g nylon 6 resin, 7g inorganic nano-calcium, 2g compatibilizer KT-5, 0.5g chain extender SMC-3010, 13.5g maleic anhydride grafted ultra-high molecular weight polyethylene The above-mentioned nylon 6 resin and inorganic nanomaterials are dried in a dryer until the water content reaches less than 0.1%; then the dried nylon 6 resin, inorganic nanomaterials, and the above-mentioned chain extenders and compatibilizers are dried Mix with UHMWPE-g-MAH in a high-speed mixer for 5 minutes, and mix evenly; put the above-mentioned mixture into a twin-screw extruder for melting and mixing, plasticize and extrude to pelletize, the twin-screw process temperature is 240 ° C, and the extrusion speed The alloy material is obtained at 280r / min, and the obtained material is prepared in an injection machine at a process temperature of 250°C to prepare a sample.

Embodiment 3

[0022] The maleic anhydride grafting of 46g ultra-high molecular weight polyethylene resin, 32g nylon 6 resin, 6.5g inorganic nano-calcium, 3g compatibilizer KT-3, 0.5g chain extender SMC-3010, 12g ultra-high molecular weight polyethylene The above-mentioned nylon 6 resin and inorganic nanomaterials are dried in a dryer until the water content reaches less than 0.1%; then the dried nylon 6 resin, inorganic nanomaterials, and the above-mentioned chain extenders and compatibilizers are dried Mix with UHMWPE-g-MAH in a high-speed mixer for 5 minutes, and mix evenly; put the above-mentioned mixture into a twin-screw extruder for melting and mixing, plasticize and extrude to granulate, the twin-screw process temperature is 235 ° C, and the extrusion speed The alloy material is obtained at 230r / min, and the obtained material is prepared in an injection machine at a process temperature of 250°C to prepare a sample.

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Abstract

The invention relates to a high-softening-point ultra-high-molecular-weight polyethylene alloy material and a preparation method thereof, and is used for mainly solving the problems that a conventional polyamide (PA) / (ultra) high-molecular-weight polyethylene (UHMWPE) plastic alloy material is low in vicat softening point, is not resistant to high temperature and slow in rebound velocity. The alloy material comprises the following components by the weight percentage: 40-80% of ultra-high-molecular-weight polyethylene resin, 30-60% of nylon resin, 2-15% of an inorganic nanomaterial, 0-10% of a compatibilizer, 0.5% of a chain extender, and 6-12% of an ultra-high-molecular-weight polyethylene maleic anhydride graft material. The high-softening-point ultra-high-molecular-weight polyethylene alloy material improves the vicat softening point and the rebound velocity, is resistant to high temperature, can meet the requirements of high temperature, high pressure and strong friction, reduces the product producing cost and is beneficial for extrusion molding.

Description

Technical field: [0001] The invention relates to the technical field of polymer alloy materials, in particular to an ultra-high molecular weight polyethylene alloy material with a high softening point and a preparation method thereof. Background technique: [0002] Nylon and ultra-high molecular weight polyethylene are usually used as ultra-high molecular weight alloy materials. Polyamide, also known as nylon (PA), has excellent wear resistance, high strength, good resilience and good heat setting. However, its corrosion resistance, hydrolysis resistance and low temperature impact resistance are poor. Ultra-high molecular weight polyethylene (UHMWPE for short) refers to polyethylene products with a relative molecular weight of more than 1.5 million. It is a new type of thermoplastic engineering plastic. Its molecular structure is the same as that of ordinary polyethylene. , Self-lubrication, impact resistance and other characteristics, can work under the condition of -269 ...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L77/02C08L51/06C08K3/26
CPCC08L23/06C08L2203/18C08L2207/068C08L77/02C08L51/06C08K2003/265
Inventor 袁浩杰蔡淑清曹海杨秀英
Owner QIQIHAR NORTH KUN SYNTHETIC POLYMER MATERIALS
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