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A kind of sapo-34 molecular sieve/graphene modified plastic and preparation method thereof

A SAPO-34, graphene modification technology, applied in the field of polymer materials, can solve the problems of difficult to meet the use requirements of fenders, low thermal conductivity or thermal conductivity, limited use range, etc., to achieve excellent electron migration ability, preparation Simple process, the effect of improving mechanical properties and heat dissipation

Active Publication Date: 2021-05-28
SHANGHAI SECOND POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But some of its own shortcomings also limit its scope of use, such as poor heat resistance, large thermal expansion rate, easy to burn
The thermal conductivity or thermal conductivity of most plastics is very low, generally around 0.2~0.46W / (m·K), which is difficult to meet the requirements of fenders

Method used

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  • A kind of sapo-34 molecular sieve/graphene modified plastic and preparation method thereof
  • A kind of sapo-34 molecular sieve/graphene modified plastic and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027]Method for preparing SAPO-34 molecular sieve / graphene modified plastic, including the following steps:

[0028](1) Taking 100 parts of polypropylene (PP), 5 parts of SAPO-34 molecular sieve, 0.3 parts of graphene, and adding a high speed mixture;

[0029](2) Using the same-to-directional double screw extruder, mixed samples, squeezing, extruders are combined with plastic particles, resulting in uniform plastic particles, drying granulation products, drying temperature is 80 ° C, drying time of 30 min;

[0030](3) The plastic particles obtained in step (2) are added to the injection molding machine, injection molding;

[0031](4) Use the TCI thermostatizer, the universal material testing machine, the plastic pendulum impact test machine will result in the performance test of the model strip in step (3), and the specific test results include thermal conductivity, tensile strength, Young's modulus, Maximum load. The test results were analyzed in Table 1 below.

Embodiment 2

[0033]Method for preparing SAPO-34 molecular sieve / graphene modified plastic, including the following steps:

[0034](1) Taking 100 parts of polypropylene (PP), 3 parts of SAPO-34 molecular sieve, 0.3 parts of graphene, and add a mixed uniform mixture in high-speed mixing machines.

[0035](2) Using the same-to-directional double screw extruder, mixed samples, squeezing, extruders are combined with plastic particles, resulting in uniform plastic particles, drying granulation products, drying temperature is 80 ° C, drying time of 30 min;

[0036](3) The plastic particles obtained in step (2) are added to the injection molding machine, injection molding;

[0037](4) Use the TCI thermostatizer, the universal material testing machine, the plastic pendulum impact test machine will result in the performance test of the model strip in step (3), and the specific test results include thermal conductivity, tensile strength, Young's modulus, Maximum load. The test results analysis are shown in Table 1.

Embodiment 3

[0039]Method for preparing SAPO-34 molecular sieve / graphene modified plastic, including the following steps:

[0040](1) Taking 100 parts of polypropylene (PP), 3 parts of SAPO-34 molecular sieve, 0.5 parts of graphene, and adding a high-speed mixing machine;

[0041](2) Using the same-to-directional double screw extruder, mixed samples, squeezing, extruders are combined with plastic particles, resulting in uniform plastic particles, drying granulation products, drying temperature is 80 ° C, drying time of 30 min;

[0042](3) The plastic particles obtained in step (2) are added to the injection molding machine, injection molding;

[0043](4) Use the TCI thermostatizer, the universal material testing machine, the plastic pendulum impact test machine will result in the performance test of the model strip in step (3), and the specific test results include thermal conductivity, tensile strength, Young's modulus, Maximum load. The test results analysis are shown in Table 1.

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Abstract

The invention discloses a SAPO‑34 molecular sieve / graphene modified plastic and a preparation method thereof. The method of the present invention comprises the following steps: in parts by mass, adding 100 parts of thermoplastic resin, 1 to 5 parts of SAPO-34 molecular sieve, and 0.1 to 0.6 parts of graphene into a high-speed mixer and mixing uniformly; then using co-rotating twin-screws Extruder, the mixed sample, extruded strips, extruder and plastic particle granulator are combined to obtain uniform plastic particles, and the granulated products are dried. Finally, the obtained plastic particles are added to an injection molding machine for injection molding. The invention has the beneficial effects of simple preparation process, less addition of graphene and SAPO-34 molecular sieve, improved mechanical properties and heat dissipation of plastics, and can be widely used in industries such as automobiles, electronics and electrics.

Description

Technical field[0001]The present invention relates to the field of polymer materials, and more particularly to SAPO-34 molecular sieve / graphene modified plastics and preparation methods thereof.Background technique[0002]With the current status of raw materials such as steel, diesel oil and the continuous improvement of material cost, etc., in turn, the application of plastic materials in the middle and heavy truck outer accessories has been developed. Among the automotive parts, the fender protecting other road users as much as possible from the car wheel, sediment, ice and water and other debris attacks. Therefore, the fender should have a good low temperature impact, heat resistance, better tensile strength, elongation, tear strength, and appropriate hardness.[0003]Plastic is a polymer compound polymerized by polymerization or polycondensation reaction by a monomer as a raw material. It has the advantages of easy processing, high product design freedom, low cost. But some of its...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08K7/26C08K3/04
Inventor 王利军曹颖孙方静宋贤震申韬艺燕溪溪
Owner SHANGHAI SECOND POLYTECHNIC UNIVERSITY