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Polypropylene filled master bath and preparation method thereof

A technology for filling masterbatch and polypropylene, applied in the field of composite materials, can solve the problem of high cost of raw materials, and achieve the effects of improving compatibility, reducing costs, and increasing use value

Inactive Publication Date: 2017-01-11
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, a large number of filler masterbatches on the market mainly use new materials such as polypropylene, polyethylene, polyolefin elastomer (POE), etc., and the cost of raw materials for production is relatively high.

Method used

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  • Polypropylene filled master bath and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Put 10 parts of recycled polypropylene, 5 parts of polypropylene grafted acrylic acid, 0.8 parts of antioxidant, and 1.6 parts of lubricant into a temperature-controlled high-speed mixer and mix for 2 minutes. The temperature is controlled at 80 ° C and the speed is 700 r / min; Add 85 parts of calcium carbonate, an inorganic mineral filler, into the high-speed mixer, and evenly add 1.7 parts of triallyl cyanurate while stirring, and control the speed of the high-speed mixer at 750 r / min. material; finally feed the premixed material into the twin-screw extruder with L / D=44:1, preheat for 3 minutes, then melt, extrude, vacuumize, air-cool, pelletize and dry, that is, Filled masterbatches are obtained, wherein the temperature of each zone of the twin-screw extruder is: pre-melting zone 140°C, first melting zone 195°C, first high-temperature shear zone 205°C, second high-temperature shear zone 210°C, second melting zone The temperature zone is 205°C, the melting temperature ...

Embodiment 2

[0037] Put 13 parts of recycled polypropylene, 2 parts of polypropylene grafted acrylic acid, 0.8 parts of antioxidant, and 3 parts of lubricant into a temperature-controlled high-speed mixer and mix for 3 minutes. The temperature is controlled at 75 °C and the speed is 600 r / min; Add 55 parts of inorganic mineral filler calcium carbonate and 30 parts of talcum powder into the high-speed mixer, and 1.5 parts of triallyl cyanurate. The speed of the high-speed mixer is controlled at 650 r / min. After adding, continue to stir for 15 minutes to obtain a premixed material; finally feed the premixed material into the twin-screw extruder, preheat for 2 minutes, and then melt, extrude, vacuumize, air-cool, pelletize and dry to obtain the filled masterbatch, in which the twin-screw extruder The temperature of each zone of the extruder is: pre-melting zone 155°C, first melting zone 200°C, first high-temperature shear zone 210°C, second high-temperature shear zone 220°C, second melting tem...

Embodiment 3

[0040] Put 15 parts of polypropylene recycled materials, 5 parts of polypropylene grafted acrylic acid, 0.5 parts of antioxidant, and 2.5 parts of lubricant into a temperature-controlled high-speed mixer and mix for 3 minutes. The temperature is controlled at 90°C and the speed is 800r / min; Add 35 parts of inorganic mineral filler mica powder and 45 parts of talc powder into the high-speed mixer, add 1.6 parts of triallyl cyanurate evenly while stirring, control the speed of the high-speed mixer at 800 r / min, and continue stirring after adding After 12 minutes, the premix was obtained; finally, the premix was fed into the twin-screw extruder, preheated for 3 minutes, and then melted, extruded, vacuumed, air-cooled, pelletized and dried to obtain the filler The temperature of each zone of the twin-screw extruder is: 140°C in the pre-melting zone, 190°C in the first melting zone, 200°C in the first high-temperature shear zone, 210°C in the second high-temperature shear zone, and ...

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Abstract

The invention discloses a filled master batch prepared from reclaimed polypropylene. The master batch is prepared from the following components in parts by weight: 10 to 20 parts of reclaimed polypropylene, 2 to 6 parts of polypropylene grafted acrylic acid, 75 to 85 parts of inorganic mineral filler, 1.5 to 1.7 parts of triallyl cyanurate (TAC), 0.5 to 1.0 part of antioxidant, and 1.5 to 3 parts of lubricant. The invention also discloses a preparation method of the master batch. At present, common filled master batches on the market have the disadvantages of high cost and bad dispersibility and compatibility; the provided master batch solves the abovementioned problems, and at the same time, the application range of regenerated plastic is enlarged. The processed filled master batch can be widely applied to filling modification of materials such as automobiles, pipelines, cables, and the like; on the basis that the performance requirements are met, the raw material cost is largely reduced, and the using value of regenerated plastic is increased.

Description

technical field [0001] The invention belongs to the field of composite materials, and in particular relates to a filling masterbatch prepared from recycled polypropylene and a preparation method thereof. Background technique [0002] In order to enhance the mechanical properties, density and other related properties of plastic materials, it is generally modified by adding some modifiers. At first, the plastic modification directly uses powder in filling modification. On the one hand, this modification method will The production environment is highly polluted. On the other hand, the dispersion of powder addition is poor, which affects the performance of the final product. In recent years, with the continuous update and development of plastic modification technology, the use of filler masterbatch as filler modification has become the production form of many enterprises, and has been effectively improved in terms of pollution and processing technology. [0003] At present, a l...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L51/06C08L91/00C08K13/02C08K3/34C08K3/26C08K5/3492C08K5/134C08K5/526C08K5/20C08K5/098C08J3/22
CPCC08L23/12C08J3/226C08J2423/12C08K2201/005C08K2201/014C08L2205/03C08L2207/20C08L51/06C08L91/00C08K13/02C08K2003/265C08K5/34922C08K5/1345C08K5/526C08K5/20C08K5/098C08K3/34
Inventor 杨桂生韩雷
Owner HEFEI GENIUS NEW MATERIALS