Inorganic nanomaterial toughened HDPE (high-density polyethylene) double-wall corrugated pipe composite masterbatch and preparation method thereof

A technology of inorganic nanomaterials and double-wall corrugated pipes, applied in the field of inorganic toughening composite masterbatch for high-density polyethylene HDPE double-wall corrugated pipes, can solve the problems of ring stiffness decrease, toughness improvement, toughness non-conformity, etc.

Pending Publication Date: 2020-02-07
浙江德清金科塑胶材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after adding flake-shaped talcum powder and needle-shaped wollastonite powder, the stiffness and hardness of the double-wall bellows ring reached the standard, but the toughness did not meet the standard an

Method used

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  • Inorganic nanomaterial toughened HDPE (high-density polyethylene) double-wall corrugated pipe composite masterbatch and preparation method thereof
  • Inorganic nanomaterial toughened HDPE (high-density polyethylene) double-wall corrugated pipe composite masterbatch and preparation method thereof
  • Inorganic nanomaterial toughened HDPE (high-density polyethylene) double-wall corrugated pipe composite masterbatch and preparation method thereof

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Experimental program
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Embodiment 1

[0015] A preparation method of an inorganic nanomaterial toughened HDPE double-wall corrugated pipe composite masterbatch, comprising the following components in parts by weight:

[0016]

[0017] The preparation method adopted:

[0018] (1) The above-mentioned nano-calcium carbonate, nano-titanium dioxide, maleic anhydride grafted HDPE, ultra-high molecular weight polyethylene UHMW-PE, and maleic anhydride grafted PP wax. Add it into the tunnel microwave dryer according to the proportion of the components, and preheat the microwave drying for 6 minutes to become dry premixed powder.

[0019] (2) Feed the dry pre-mixed powder into the double-rotor continuous internal mixer through automatic metering and automatic suction. High speed, high shear, kneading, plasticizing, melting, exhaust. Enter the single-screw extruder, the single-screw mandrel is equipped with circulating water cooling device. Extrude compact compression molding, grind the surface eagerly, and obtain the...

Embodiment 2

[0021] A preparation method of an inorganic nanomaterial toughened HDPE double-wall corrugated pipe composite masterbatch, comprising the following components in parts by weight:

[0022]

[0023] The preparation method adopted:

[0024] (1) The above-mentioned nano-calcium carbonate, nano-titanium dioxide, maleic anhydride grafted HDPE, ultra-high molecular weight polyethylene UHMW-PE, and maleic anhydride grafted PP wax. Add it into the tunnel microwave dryer according to the proportion of the components, and preheat for 8 minutes for microwave drying to become dry premixed powder.

[0025] (2) Feed the dry pre-mixed powder into the double-rotor continuous internal mixer through automatic metering and automatic suction. High speed, high shear, kneading, plasticizing, melting, exhaust. Enter the single-screw extruder, the single-screw mandrel is equipped with circulating water cooling device. Extrude compact compression molding, grind the surface eagerly, and obtain the...

Embodiment 3

[0027] A preparation method of an inorganic nanomaterial toughened HDPE double-wall corrugated pipe composite masterbatch, comprising the following components in parts by weight:

[0028]

[0029] The preparation method adopted:

[0030] (1) The above-mentioned nano-calcium carbonate, nano-titanium dioxide, maleic anhydride grafted HDPE, ultra-high molecular weight polyethylene UHMW-PE, and maleic anhydride grafted PP wax. Add it into the tunnel microwave dryer according to the proportion of the components, and preheat it for 10 minutes for microwave drying to become dry premixed powder.

[0031] (2) Feed the dry pre-mixed powder into the double-rotor continuous internal mixer through automatic metering and automatic suction. High speed, high shear, kneading, plasticizing, melting, exhaust. Enter the single-screw extruder, the single-screw mandrel is equipped with circulating water cooling device. Extrude compact compression molding, grind the surface eagerly, and obtain...

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Abstract

The invention provides an inorganic nanomaterial toughened HDPE (high-density polyethylene) double-wall corrugated pipe composite masterbatch and a preparation method thereof. The masterbatch comprises 100 parts of nano calcium carbonate, 6-12 parts of nano titanium dioxide, 5-8 parts of PP (polypropylene) wax, 12-18 parts of HDPE and 6-10 parts of UHMW-PE6 (ultrahigh molecular weight polyethylene-polyethylene 6). According to the technical scheme, preheating drying is implemented, the nano calcium carbonate and rutile nano titanium dioxide are too large in specific surface areas, and thus powder artesian change can be caused. Maleic anhydride grafted HDPE and UHMW-PE are wrapped by nano powder, and preheating drying is a mode of technical innovation of nano calcium carbonate and rutile nanometer titanium dioxide. A conventional mechanical mode that external heat or friction heat of a stirrer and an internal mixer is conducted through convection or conduction, the time is long, the energy consumption is high,, the yield is low, and serious dust pollution can be caused. Most importantly, material moisture cannot be completely dried out, material heat is not uniform, and a material can be coked inside and unripe inside. By adopting the masterbatch, techniques of toughening and rigidity reduction of organic materials are effectively solved, the cost can be reduced, and materials are all localized.

Description

technical field [0001] The invention belongs to an inorganic toughening composite masterbatch for a high-density polyethylene (HDPE) double-wall corrugated pipe and a production method thereof. Background technique [0002] Compared with PE solid wall pipe, high-density polyethylene HDPE double-wall corrugated pipe can save 25% of raw materials. It has excellent mechanical properties, external compression resistance, and internal pressure of 0.5-0.7MPa. It has light weight, corrosion resistance, Good pressure resistance, long life, easy installation and use, etc. Widely used in municipal and building non-pressure sewage discharge, non-pressure drainage and other fields. [0003] The application of high-density polyethylene (HDPE) pipes has been continuously upgraded, and the technical indicators for the production of double-wall corrugated pipes with a diameter of 300mm-1200mm are very strict. Simply using HDPE pipe material has been unable to achieve the essential perform...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L51/06C08K3/22C08K3/26C08J3/22
CPCC08J3/226C08J2323/06C08J2423/06C08J2451/06C08K2003/2241C08K2003/265C08K2201/003C08K2201/011
Inventor 张晓红缪江明王樟水闫万琪缪绸
Owner 浙江德清金科塑胶材料有限公司
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