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Toughening and stiffening dual-function filler masterbatch and preparation method thereof

A filling masterbatch and dual-function technology, which is applied in the field of dual-function filling masterbatch and its preparation, can solve problems that have not been solved well, and achieve the effect of increasing the application range of products

Active Publication Date: 2015-08-05
杭州嘉和材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For filling modification, in order to improve the toughness or rigidity without affecting the rigidity or toughness of the material, it is currently a major problem in the filling modification industry, although everyone has done a lot in this regard A lot of work, but so far have not been well resolved

Method used

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  • Toughening and stiffening dual-function filler masterbatch and preparation method thereof
  • Toughening and stiffening dual-function filler masterbatch and preparation method thereof
  • Toughening and stiffening dual-function filler masterbatch and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Preparation of active inorganic materials: Add 40kg of wollastonite whiskers with a particle size of 5μm, 16.7kg of talc powder with a particle size of 5μm, and 3.3kg of nano-calcium carbonate into the mixer, and add 0.5kg of silane coupling at 80°C Stir at 3000r / min at high speed for 15min, then add 0.8kg of EAA and continue stirring at 120°C and 3000r / min for 10min until the temperature is 120-140°C to obtain the active inorganic material.

[0028] Preparation of dual-functional filling masterbatch: Add the above-mentioned active inorganic material, 2kg PE wax, 1.5kg solid wax, 4kg LDPE, and 8kg POE into the internal mixer, and masticate at 175°C for 20 minutes to form a dough-like material. The material is fed into a conical twin-screw extruder and extruded at 175°C to obtain a toughened functional filler masterbatch.

Embodiment 2

[0030] Preparation of active inorganic materials: Add 41kg of tremolite whisker material with a particle size of 10μm, 10kg of mica powder with a particle size of 10μm, and 4.1kg of nano-calcium carbonate into the mixer. Mixing agent, stir at 5000r / min at high speed for 10min, then add 1kg of polyethylene / maleic anhydride graft copolymer at 140°C and 5000r / min and continue stirring for 8-12min until the temperature is 120-140°C to obtain the active inorganic material .

[0031]Preparation of dual-functional filling masterbatch: Add the above-mentioned active inorganic material, 10kg PP wax, 3.0kg LLDPE, and 6.0kg SBS into the internal mixer, masticate at 190°C for 15 minutes to form a dough-like material, and put the dough-like material into the cone Type twin-screw extruder extrudes and granulates at 190°C to obtain toughened functional filled masterbatches.

Embodiment 3

[0033] Preparation of active inorganic materials: Add 15kg of calcium sulfate whisker material with a particle size of 8μm, 47.1kg of mica powder with a particle size of 8μm, and 1.5kg of nano-calcium carbonate into the mixer, and add 1.5kg of aluminate couple at 90°C Mixing agent, stir at 4000r / min at high speed for 12min, then add 1.6kg of epoxidized soybean oil and continue stirring at 130°C and 4000r / min for 10min until the temperature is 120-140°C to obtain the active inorganic material.

[0034] Preparation of dual-functional filling masterbatch: Add the above-mentioned active inorganic material, 3.5kg mineral oil, 6.7kg LLDPE, and 1.0kg EVA into the internal mixer, masticate at 180°C for 18 minutes to form a dough-like material, and add the dough-like material The conical twin-screw extruder extrudes and pelletizes at 180°C to obtain the rigidity-enhancing functional filler masterbatch.

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Abstract

The invention relates to a toughening and rigidity-improving difunctional filling master batch for increasing the toughness or rigidity of plastic products and a preparation method thereof. The difunctional filling master batch comprises inorganic materials, a surface active agent, a processing agent and carrier resin at the weight ratio of (70-82):(2-4):(3-6):(10-16); the inorganic materials comprise a crystal whisker material, a microcosmic sheet structure and nanometer CaCO3 at the weight ratio of (40-60):(40-60):(2-8); the carrier resin is composed of PE (poly ethylene) and an elastomer at the weight ratio of 1:(2-0.5); when the filling master batch is used for increasing the toughness of the plastic products; the content of the crystal whisker material is larger than the content of the microcosmic sheet structure, and the content of the elastomer is larger than the content of the PE; when the filling master batch is used for improving the rigidity of plastic products, the content of the crystal whisker material is smaller than the content of the microcosmic sheet structure, and the content of the elastomer is smaller than the content of the PE.

Description

technical field [0001] The invention relates to a filler masterbatch, in particular to a dual-function filler masterbatch for enhancing the toughness or rigidity of plastic products and a preparation method thereof. Background technique [0002] The main raw material of plastic products comes from petroleum. The world's petroleum resources are limited and will become more and more scarce as time goes by. Adding inorganic powder with rich resources and low price to plastic products (filling modification) is an effective means to reduce the production cost of plastic products and save resources. However, adding modified inorganic powder to plastics will make plastic products brittle and reduce toughness in most cases, regardless of the amount added. The more the amount added, the more severe the decrease in toughness. For polymer materials, toughness and rigidity are two contradictory inherent properties. If the toughness of the material is to be improved, the rigidity will ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08L23/08C08L53/02C08L23/16C08K13/06C08K9/10C08K9/06C08K9/04C08K7/10C08K7/08C08K3/34C08K3/26B29B9/06B29C47/92C08L23/12C08L25/06C08J3/22B29C48/92
Inventor 王锡臣黄向阳黄期翾
Owner 杭州嘉和材料科技有限公司