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Modification method for enhancing regeneration performance of waste polypropylene plastics

A technology for waste polypropylene and regeneration performance, which is applied in the field of modification to enhance the regeneration performance of waste polypropylene plastics, can solve problems such as performance degradation of plastic products, and achieve the effects of increasing extrusion speed, high mechanical stability, and improving comprehensive performance.

Inactive Publication Date: 2019-12-06
界首市宏茂塑业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to address the existing problems, to provide a modification method for enhancing the regeneration performance of waste polypropylene plastics, to overcome the serious aging of waste polypropylene plastics, and to reduce the performance of the prepared plastic products, and to eliminate the problems caused by Quality problems such as surface defects caused by adding fillers

Method used

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  • Modification method for enhancing regeneration performance of waste polypropylene plastics

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Effect test

Embodiment 1

[0019] A modification method for enhancing the regeneration performance of waste polypropylene plastics, which uses the prepared modifier to enhance and modify waste polypropylene plastics, and the preparation method of the modifier comprises the following steps:

[0020] (1) Weigh 5.8 g of silicon oxide and 2.2 g of yttrium oxide, mix them and press them into powder under a hydraulic press. The obtained powder mixture is placed in a box-type resistance furnace, heated to 630 ° C at a rate of 3.0 ° C / min, and calcined for 45 minutes, annealed to 220°C at a rate of 7.5°C / min, and naturally cooled to room temperature to obtain a nano-yttrium oxide-doped silicon oxide self-lubricant;

[0021] (2) Weigh 9.5 g of zinc nitrate hexahydrate, add it to a beaker, add 30 ml of deionized water to the beaker, place the beaker in a magnetic stirring device, stir at 300 rpm for 10 minutes, and then add 10 ml dropwise The aqueous acetic acid solution was stirred for 30 minutes, then the mixtu...

Embodiment 2

[0030] A modification method for enhancing the regeneration performance of waste polypropylene plastics, which uses the prepared modifier to enhance and modify waste polypropylene plastics, and the preparation method of the modifier comprises the following steps:

[0031] (1) Weigh 5.9 grams of silicon oxide and 2.25 grams of yttrium oxide, mix them, and press them into powder under a hydraulic press. The obtained powder mixture is placed in a box-type resistance furnace, heated to 645 ℃ at a rate of 3.3 ℃ / min, and calcined for 50 ℃. minutes, annealed to 225°C at a rate of 7.8°C / min, and naturally cooled to room temperature to obtain a nano-yttrium oxide-doped silicon oxide self-lubricant;

[0032] (2) Weigh 9.8 g of zinc nitrate hexahydrate, add it to a beaker, add 35 ml of deionized water to the beaker, place the beaker in a magnetic stirring device, stir at 330 rpm for 12 minutes, and then add 11 ml dropwise The aqueous acetic acid solution was stirred for 35 minutes, then ...

Embodiment 3

[0041] A modification method for enhancing the recycling performance of waste polypropylene plastics, using a prepared modifier to enhance and modify waste polypropylene plastics, the preparation method of the modifier includes the following steps:

[0042] (1) Weigh 6.0 grams of silicon oxide and 2.3 grams of yttrium oxide, mix them and press them into powder under a hydraulic press, place the obtained powder mixture in a box-type resistance furnace, heat up to 660 °C at a speed of 3.5 °C / min, and calcinate for 55 minutes, anneal to 230°C at a speed of 8.0°C / min, and cool down to room temperature naturally to obtain a silicon oxide self-lubricating agent doped with nanometer yttrium oxide;

[0043] (2) Weigh 10.0 g of zinc nitrate hexahydrate, add it to a beaker, add 40 ml of deionized water to the beaker, place the beaker in a magnetic stirring device, stir at 350 rpm for 15 minutes, then add 12 ml dropwise Acetic acid aqueous solution, continue to stir for 40 minutes, then ...

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Abstract

The invention relates to the technical field of novel functional materials, and discloses a modification method for enhancing the regeneration performance of waste polypropylene plastics. A prepared modifier is used to enhance and modify the waste polypropylene plastics, when the prepared modifier and the polypropylene waste plastics are subjected to melt blending, the modifier has strong self-lubricating properties, can migrate to the surfaces of the polypropylene materials during molecular movement, and has good compatibility with the polypropylene plastics, the light resistance, temperatureresistance and thermal stability of polypropylene molecules are improved while the strength and wear resistance are improved by utilizing synergistic effects, the complementary advantages of materials are realized, the comprehensive performance of a composite modified material is improved, the service life of recycled polypropylene plastics is significantly prolonged, and the addition amount of the modifier is less, the surface gloss is improved, the extrusion speed is improved, defective products are reduced, the modification operation steps are simple, the costs are significantly reduced, and the appearance and physical and mechanical properties of plastic products are guaranteed for a long time.

Description

technical field [0001] The invention belongs to the technical field of novel functional materials, in particular to a modification method for enhancing the regeneration performance of waste polypropylene plastics. Background technique [0002] Polypropylene is a semi-crystalline thermoplastic. It has high impact resistance, strong and tough mechanical properties, and is resistant to various organic solvents and acid and alkali corrosion. It has a wide range of applications in the industry and is one of the common polymer materials. Mainly used in the production of various long and short polypropylene fibers, used in the production of polypropylene woven bags, packaging bags, injection products and other flame retardant parts used in the production of electrical appliances, telecommunications, lighting, lighting equipment and TV sets. [0003] Polypropylene plastic is a thermoplastic resin obtained by polymerizing propylene. There are three configurations of isotactic, ran...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08K3/36C08K3/22
CPCC08K3/22C08K3/36C08K2003/221C08L23/12
Inventor 许亮亮
Owner 界首市宏茂塑业有限公司
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