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A kind of in-situ self-reinforced polyoxymethylene/polyethylene composite material and its preparation method

A composite material and polyethylene technology, which is applied in the field of polymer material modification, can solve the problems of less research on polyethylene products, achieve the effects of improving mechanical properties, wide applicability, and increasing the scope of application

Active Publication Date: 2017-03-08
重庆云天化天聚新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] At present, the method of using liquid crystal materials to prepare in-situ reinforced materials is relatively common in the industry, but there are few studies on improving polyethylene products through self-reinforcement through organic rigid particles

Method used

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  • A kind of in-situ self-reinforced polyoxymethylene/polyethylene composite material and its preparation method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1: the prescription of embodiment 1 is (weight part): high-density polyethylene 80; Polyoxymethylene 20; Polyethylene glycol monomethyl ether 0.1.

[0026] The preparation method is as follows: first, the ingredients are prepared according to the content of each component, and then high-density polyethylene (HDPE) from Lanzhou Petrochemical, polyoxymethylene (POM) from Yuntianhua, and polyethylene glycol monomethyl ether (MPEG) from Haian Petrochemical are added to the Extrusion granulation is carried out on a twin-screw extrusion granulator, the temperatures of zone 1 - zone 9 are 145, 165, 185, 190, 190, 195, 195, 195, 195°C respectively, and the prepared blended material is granulated Dry in a drying oven at 80°C for 4 hours; finally use the dried pellets for injection molding, and the temperature of each section of the barrel of the injection molding machine is 170, 185, 195, and 200°C. The performance test results of the materials are shown in Table 1. ...

Embodiment 2

[0027] Embodiment 2: the formula of embodiment 2 is (weight part): high-density polyethylene 80; Polyoxymethylene 20; Polyethylene glycol monomethyl ether 0.3.

[0028] The preparation method is as follows: first, the ingredients are prepared according to the content of each component, and then high-density polyethylene (HDPE) from Lanzhou Petrochemical, polyoxymethylene (POM) from Yuntianhua, and polyethylene glycol monomethyl ether (MPEG) from Haian Petrochemical are added to the Extrusion granulation is carried out on a twin-screw extrusion granulator, the temperatures of zone 1 - zone 9 are 145, 165, 185, 190, 190, 195, 195, 195, 195°C respectively, and the prepared blended material is granulated Dry in a drying oven at 80°C for 4 hours; finally use the dried pellets for injection molding, and the temperature of each section of the barrel of the injection molding machine is 170, 185, 195, and 200°C. The performance test results of the materials are shown in Table 1.

Embodiment 3

[0029] Embodiment 3: the prescription of embodiment 3 is (weight part): high-density polyethylene 80; Polyoxymethylene 20; Polyethylene glycol monomethyl ether 0.5.

[0030] The preparation method is as follows: first, the ingredients are prepared according to the content of each component, and then high-density polyethylene (HDPE) from Lanzhou Petrochemical, polyoxymethylene (POM) from Yuntianhua, and polyethylene glycol monomethyl ether (MPEG) from Haian Petrochemical are added to the Extrusion granulation is carried out on a twin-screw extrusion granulator, the temperatures of zone 1 - zone 9 are 145, 165, 185, 190, 190, 195, 195, 195, 195°C respectively, and the prepared blended material is granulated Dry in a drying oven at 80°C for 4 hours; finally use the dried pellets for injection molding, and the temperature of each section of the barrel of the injection molding machine is 170, 185, 195, and 200°C. The performance test results of the materials are shown in Table 1. ...

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Abstract

The invention discloses an in-situ self-enhanced polyformaldehyde / polyethylene composite material. The in-situ self-enhanced polyformaldehyde / polyethylene composite material comprise 70-100 parts of polyethylene, 10-30 parts of polyformaldehyde and 0.05-1 parts of ethylene glycol monomethyl ether. During preparation, the three raw materials are added onto a double-screw extrusion and granulation machine and subjected to extrusion and granulation, the prepared blended material grains are dried in a drying box, and finally the dried material grains are injected to obtain the in-situ self-enhanced polyformaldehyde / polyethylene composite material. The in-situ self-enhanced polyformaldehyde / polyethylene composite material disclosed by the invention is capable of improving the mechanical property of a polyethylene material, and avoiding the problems of the viscosity increment of a resin base, the reduction of the flowing property and the increase of the processing cost, which are caused by adding macroscopic fibres such as glass fibres, the sharp degradation of the material performance of a polymer, due to the breakages of the fibres during waste recycling, and the like. The material preserves a good impact performance while the rigidity is improved.

Description

technical field [0001] The invention relates to a composite material, in particular to an in-situ self-reinforced polyoxymethylene / polyethylene composite material and a preparation method, and belongs to the technical field of polymer material modification. Background technique [0002] The industrialization of polyethylene has a history of more than 60 years, and it is one of the most important synthetic resins with the largest output and various varieties in the world. Under the premise of satisfying the end use, compared with other polymers and non-polymer materials, polyethylene resin has strong competitiveness due to its low price and high quality, and has developed into the most important class with large production volume and wide application. general purpose resin. However, polyethylene still has some disadvantages, such as its low tensile strength and low strength and rigidity, which limit the use of polyethylene as a structural material. [0003] G Kiss of the Un...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08L59/00C08L71/08B29C45/76
CPCB29C45/76B29C2945/7604C08L23/06C08L2207/062C08L59/00C08L71/02
Inventor 李又兵杨朝龙盛旭敏夏天王选伦李敬媛潘燕
Owner 重庆云天化天聚新材料有限公司