Ultrahigh molecular weight polyethylene fiber/rubber composite material and preparation method thereof

A polyethylene fiber and ultra-high molecular weight technology, applied in the field of polymer material processing, can solve the problems of high energy consumption of electron beam irradiation technology, high test environment requirements, and unfavorable industrial production, so as to avoid fiber surface defects and reduce raw materials. and process energy consumption, cost saving effect

Inactive Publication Date: 2015-01-21
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, Shanghai Jiaotong University has used electron beam irradiation technology to graft and modify the fiber surface, but it is only suitable for compounding with liquid rubber, and there is a phenomenon of phase separation, and this technology has only been promoted and used in the aerospace field, and the electronic The energy consumption of beam irradiation technology is high, and the requirements of the required test environment are high, which is not conducive to industrial production

Method used

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  • Ultrahigh molecular weight polyethylene fiber/rubber composite material and preparation method thereof
  • Ultrahigh molecular weight polyethylene fiber/rubber composite material and preparation method thereof
  • Ultrahigh molecular weight polyethylene fiber/rubber composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Formula design according to the following components and contents:

[0027] rubber

[0028] Weigh according to the above-mentioned proportion, carry out kneading on the open rubber mixer for 15 minutes, and then carry out composite vulcanization with fibers. The vulcanization temperature is 150°C, the vulcanization pressure is 20MPa, and the vulcanization time is 20min. After the vulcanization is completed, the product is taken out from the mold, placed in a temperature control system, and the temperature is lowered at a constant rate. After the product has cooled to room temperature, the test is carried out. The obtained composite material had a peel strength of 4.45 N / mm and a tear strength of 4.81 N / mm.

Embodiment 2

[0030] Formula design according to the following components and contents:

[0031] rubber

[0032] Weigh according to the above-mentioned proportion, carry out kneading on the open rubber mixer for 15 minutes, and then carry out composite vulcanization with fibers. The vulcanization temperature is 150°C, the vulcanization pressure is 20MPa, and the vulcanization time is 20min. Shearing is applied during the vulcanization compounding process, the shearing frequency is 50rad / s, and the shearing amplitude is 50%. After the vulcanization is completed, the product is taken out from the mold, placed in a temperature control system, and the temperature is lowered at a constant rate. After the product has cooled to room temperature, the test is carried out. The obtained composite material had a peel strength of 7.01 N / mm and a tear strength of 7.94 N / mm.

Embodiment 3

[0034] Formulate according to the following components and contents:

[0035] rubber

[0036] Weigh according to the above-mentioned proportion, carry out kneading on the open rubber mixer for 15 minutes, and then carry out composite vulcanization with fibers. The vulcanization temperature is 150°C, the vulcanization pressure is 20MPa, and the vulcanization time is 20min. Shearing is applied during the vulcanization compounding process, the shearing frequency is 100rad / s, and the shearing amplitude is 50%. After the vulcanization is completed, the product is taken out from the mold, placed in a temperature control system, and the temperature is lowered at a constant rate. After the product has cooled to room temperature, the test is carried out. The obtained composite material had a peel strength of 5.88 N / mm and a tear strength of 6.03 N / mm.

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Abstract

The invention relates to an ultrahigh molecular weight polyethylene fiber/rubber composite material and a preparation method thereof. The composite material comprises, by mass, 100 parts of rubber, 20-50 parts of a semi-reinforcing agent, 2-10 parts of an activator, 1-5 parts of sulfur, 1-5 parts of a vulcanization accelerator, 20-50 parts of a plasticizer , and 1-10 parts of an ultrahigh molecular weight polyethylene fiber. The preparation method comprises the steps of mixing above raw materials except the ultrahigh molecular weight polyethylene fiber in an open rubber mixing machine to obtain a semi-finished rubber product, and carrying out composite vulcanization on the semi-finished rubber product with the ultrahigh molecular weight polyethylene fiber. The composite material maintains the original mechanical properties of the rubber and the fiber, and the shear effect of the composite material improves the bonding performance of the fiber in the rubber, so the problem of difficult bonding of the fiber to the rubber due to the smooth surface of the fiber is solved; the composite material allows a matrix material to be directly firmly combined with the fiber, and is suitable for anti-aging low saturation rubber; and the preparation method has the advantages of simplicity, reduction of the raw materials and the consumption of energy in the process, cost saving, and suitableness for industrial mass production.

Description

technical field [0001] The invention relates to the technical field of polymer material processing, in particular to a composite material and a preparation method thereof, in particular to an ultrahigh molecular weight polyethylene fiber / rubber composite material with high peel strength and a preparation method thereof. Background technique [0002] Ultra-high molecular weight polyethylene fiber is a high-strength and high-modulus polyethylene fiber successfully developed in the late 1970s and industrialized in the early 1980s. It is also known as the three high-tech fibers together with carbon fiber and aramid fiber. The molecular structure arrangement of ultra-high molecular weight polyethylene is exactly the same as that of ordinary polyethylene, but its viscosity-average molecular weight is generally greater than 1.5 million, and its chain structure is a typical linear structure with very few branched chains, which is far lower than that of ordinary polyethylene. Chains ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L9/00C08L9/06C08L9/02C08L23/16C08L23/06C08K13/02C08K3/06B29C35/02
CPCC08L7/00B29C35/02C08L9/00C08L9/02C08L9/06C08L23/16C08L2205/03C08L2205/035C08L2205/16C08L2207/068C08L23/06C08K13/02C08K3/04C08K2003/2296C08K5/09C08K3/06C08K5/12
Inventor 陈忠仁翁更生刘衍朋
Owner NINGBO UNIV
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