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Enhanced master batch filled with modified talc powder, and preparation method thereof

A technology of reinforcing masterbatch and talcum powder, which is applied in the field of composite materials, can solve the problems of high cost, achieve the effects of reducing preparation cost, preventing high temperature creep, and improving thermal shock resistance

Active Publication Date: 2014-07-09
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the experimental raw materials involve many types and the cost is relatively high.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Mix 1 g of silane coupling agent and 100 g of 0.5 μm talc powder in an aqueous ethanol solution at room temperature and mechanically stir 1 hour Finally, filter the talcum powder, dry and pulverize. Mix 45g of modified talcum powder, 14g of polypropylene resin, and 1g of antioxidant 1010 evenly, add them into a banbury mixer, banbury at 160°C for 10 minutes, and take out the materials. The above materials were extruded and granulated by a single-screw extruder to prepare a modified talc powder reinforced masterbatch to obtain a polymer-based composite material. The extrusion temperature was kept at 180°C and the extrusion speed was 60r / min.

[0031] In this example, talcum powder, a component of the reinforced masterbatch composite material, is used as a filler to fill organic polymer materials, which can improve the rigidity, dimensional stability, and lubricity of the product, prevent high temperature creep, reduce wear on molding machinery, and make While improvi...

Embodiment 2

[0038] The technical solution of this embodiment is basically the same as that of Embodiment 1, especially in that:

[0039] Mix 2 g of long-chain quaternary ammonium salts and 100 g of 0.5 μm talc powder in an aqueous ethanol solution at room temperature and mechanically stir 2 hours Finally, filter the talcum powder, dry and pulverize. Mix 48g of modified talcum powder, 11g of polypropylene, and 1g of antioxidant 168 evenly, add them into an internal mixer, banbury at 160°C for 10 minutes, and take out the materials. The above materials are also extruded and granulated through a single-screw extruder to prepare modified talc powder reinforced master batches.

[0040] The modified talc powder-filled reinforced masterbatch composite material prepared in this example was passed through an injection molding machine to obtain a standard test sample, then passed six performance tests, and the average value was taken. The tensile strength of the injection molded composite mater...

Embodiment 3

[0042] The technical solutions of this embodiment are basically the same as those of the foregoing embodiments, and the special features are:

[0043] Mix 0.5g of silane coupling agent, 1.5g of long-chain quaternary ammonium salt and 100g of 0.5μm talc powder, mechanically stir in ethanol aqueous solution at room temperature 2 hours Finally, filter the talcum powder, dry and pulverize. Mix 48g of modified talcum powder, 11g of polypropylene, and 1g of antioxidant 1010 evenly, add them into an internal mixer, banbury at 160°C for 10 minutes, and take out the materials. The above materials are extruded and granulated through a single-screw extruder to prepare modified talc powder reinforced master batches.

[0044] After passing the reinforced masterbatch composite material filled with modified talcum powder prepared in this embodiment through an injection molding machine to obtain a standard test sample, it passed six performance tests and took the average value. The tensil...

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Abstract

The invention discloses a reinforced masterbatch filled with modified talc powder and a preparation method thereof. The reinforced masterbatch is composed of the following components according to weight percentage: 50%-80% of talc powder, 10%-49.9% of polymer And 0-30% polypropylene grafted maleic anhydride, also containing 0.05%-2% silane coupling agent and 0.05%-2% long-chain quaternary ammonium salt, any one or both of the two components . The preparation method of the reinforced masterbatch of the present invention adopts the two-step method of talcum powder modification and melt extrusion granulation. The reinforced masterbatch of the present invention filled with modified talc powder has excellent performance, which can make the talc powder better dispersed in the polymer. After the modified talc powder is added to the polymer, the mechanical properties of the polymer injection molding product can be effectively improved, and the Reduce environmental problems such as dust caused by direct modification of polymers by talc powder. The preparation method of the reinforced masterbatch of the present invention has simple process, low energy consumption, and can significantly reduce the preparation cost.

Description

technical field [0001] The invention relates to a composite material, especially a reinforced masterbatch material hybridized with organic materials and inorganic materials, and also relates to a preparation method of the material. Background technique [0002] Polypropylene (PP) is non-toxic, tasteless, low density, strength, stiffness, hardness and heat resistance are superior to low-pressure polyethylene, and can be used at around 100 °C. It has good electrical properties and high-frequency insulation, and is not affected by humidity, but polypropylene is non-polar and crystalline, which makes it poorly compatible with polar polymers, inorganic fillers and reinforcing materials, dyeing, and adhesion Also poor, so needs to improve its deficiencies. The molecular structure of polyethylene terephthalate (PET) plastic is highly symmetrical, and it has a certain crystal orientation ability, so it has high film-forming and forming properties. PET plastic has good optical perf...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L67/02C08L23/06C08L51/06C08K9/06C08K9/04C08K3/34C08J3/22
Inventor 施利毅宋娜巴超群丁鹏章晓霁唐圣福
Owner SHANGHAI UNIV
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