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Polypropylene silencing pipe master batch, preparation method and use method therefor

A polypropylene and polypropylene resin technology, applied in the field of polypropylene material and its preparation, can solve the problems of low mechanical properties, low tensile strength, poor impact strength, etc., achieve uniform texture, improve mechanical properties and impact strength , to achieve a balanced effect

Inactive Publication Date: 2016-06-15
CHANGZHOU HONGMEI PLASTIC MASTERBATCH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the polypropylene silent material prepared by this method has low mechanical properties and low tensile strength, especially at room temperature and low temperature environment, and has poor impact strength, so it has relatively large limitations in application.

Method used

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  • Polypropylene silencing pipe master batch, preparation method and use method therefor
  • Polypropylene silencing pipe master batch, preparation method and use method therefor
  • Polypropylene silencing pipe master batch, preparation method and use method therefor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Weigh raw materials according to the following mass fractions

[0026]

[0027] (2) Homopolypropylene resin, SBS and zinc stearate are dropped into a high-speed mixer, and mixed evenly at a high speed;

[0028] (3) Put the precipitated barium sulfate, calcium carbonate and titanate coupling agent into the high-speed mixer, and mix evenly at high speed;

[0029] (4) The mixed powder obtained in step (3) is added to the powder obtained in step (1), and polypropylene wax is added simultaneously, and mixed uniformly in a high-speed mixer;

[0030] (5) Extrude and knead with a twin-screw extruder, cut into pellets on the die surface, and then undergo air cooling and sieving to obtain the finished product 1-1.

Embodiment 2

[0032] (1) Weigh raw materials according to the following mass fractions

[0033]

[0034] (2) Put copolymerized polypropylene resin, SEBS, EVA and calcium stearate, EBS into high-speed mixer, and mix evenly at high speed;

[0035] (3) Put super modified barium sulfate, talc powder, wollastonite powder and aluminate coupling agent into the high-speed mixer, and mix evenly at high speed;

[0036] (4) join the mixed powder that step (3) obtains in the powder that step (1) obtains, add EVA wax, ester-based wax simultaneously, mix in high-speed mixer;

[0037] (5) Extrude and knead with a twin-screw extruder, cut into pellets on the die surface, and then undergo air cooling and sieving to obtain the finished product 1-2.

Embodiment 3

[0039] (1) Weigh raw materials according to the following mass fractions

[0040]

[0041] (2) Homopolypropylene resin, EPDM, EPM, magnesium stearate, and erucamide are put into a high-speed mixer, and mixed evenly at high speed;

[0042] (3) Put barite powder, talcum powder and silane coupling agent into the high-speed mixer, and mix evenly at high speed;

[0043] (4) The mixed powder obtained in step (3) is added to the powder obtained in step (1), and polypropylene wax and EVA wax are added simultaneously, and mixed uniformly in a high-speed mixer;

[0044] (5) Extrude and knead with a twin-screw extruder, cut into pellets on the die surface, and then undergo air cooling and sieving to obtain finished products 1-3.

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Abstract

The invention provides a polypropylene silencing pipe master batch, a preparation method and a use method therefor. The polypropylene silencing pipe master batch includes, by weight, 5-25% of polypropylene resin, 5-15% of a toughening resin, 30-45% of a first inorganic powder, 25-35% of a second inorganic powder, 4-7% of a dispersing agent, 2-4% of a lubricant and 0.5-1.5% of a coupling agent. The preparation method includes the steps of mixing and stirring the polypropylene resin, the toughening resin and the lubricant uniformly, adding the mixed components to a uniformly-stirred mixture of the two inorganic powders and the coupling agent, and adding the dispersing agent with uniform stirring, and performing extrusion and mixing, performing mould surface granule cutting, and air-cooling and sieving granules to obtain the master batch. A product, which is prepared from the polypropylene noise reduction pipe master batch and homo-polypropylene in a mixed injection moulding manner, is low in cost, is excellent in mechanical performance and high in anti-impact strength, and can adapt harsh weather conditions and complex environment demands.

Description

technical field [0001] The invention relates to a polypropylene material and a preparation method thereof, in particular to a polypropylene silent tube masterbatch, a preparation method and a use method thereof. Background technique [0002] In the past, most of the drainage pipes used in buildings were cast iron pipes and PVC pipes. Cast iron pipes generally had the disadvantages of large proportion, high energy consumption, easy corrosion, short life (10-20 years), inconvenient construction and difficult maintenance; while PVC pipe drainage The noise is large, and due to the toxicity of the PVC material itself, it will cause adverse effects on the environment, and the manufacturing cost of non-toxic PVC is too high, which is not conducive to popularization and use. [0003] Chinese invention patent CN201310569379 discloses a polypropylene silent tube material, adding inorganic sound-absorbing materials such as barium sulfate and calcium sulfate to polypropylene to realize ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/14C08L53/02C08L23/08C08L23/16C08L91/06C08K13/02C08K13/06C08K3/30C08K3/26C08K5/098C08K5/10C08K9/00C08K3/34C08K5/20C08K5/54
CPCC08L23/12C08L23/14C08L2203/18C08L2205/02C08L2205/025C08L2205/03C08L2205/035C08L53/02C08K13/02C08K2003/3045C08K2003/265C08K5/098C08K5/10C08L53/025C08L23/0853C08L91/06C08K13/06C08K9/00C08K3/34C08K5/20C08L23/16C08K5/54C08L23/06
Inventor 楚强姚宇平
Owner CHANGZHOU HONGMEI PLASTIC MASTERBATCH
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