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Polyolefin and nano calcium carbonate composite master batch and production method thereof

A nano-calcium carbonate and production method technology, applied in the field of polyolefin and nano-calcium carbonate composite masterbatch, can solve the problems of large specific surface area of ​​nano-calcium carbonate, inability to achieve uniform blending, dust pollution of the production environment, etc., and achieve transparency without being affected impact, excellent environmental stress cracking properties, and good processing thermal stability

Pending Publication Date: 2019-11-22
上海心尔新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional drying equipment is static or hot air blows moisture, compared with powder flying, dust pollutes the production environment, and moisture cannot be dried away
Pre-mixing and mixing equipment High and low-speed mixers, internal mixer premixes due to the large specific surface area of ​​nano-calcium carbonate, the surface of the nano-powder has been treated by coating, the powder has high fluidity, the masterbatch carrier and additives are nano- Coated by calcium carbonate, the blade of the mixer does not rotate and the material does not rotate, and the purpose of blending uniformly cannot be achieved

Method used

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  • Polyolefin and nano calcium carbonate composite master batch and production method thereof
  • Polyolefin and nano calcium carbonate composite master batch and production method thereof
  • Polyolefin and nano calcium carbonate composite master batch and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A kind of production method of polyolefin and nano calcium carbonate composite masterbatch:

[0019] Include the following components in parts by mass:

[0020]

[0021]

[0022] The preparation method adopted is:

[0023] (1) The above-mentioned nano-calcium carbonate and hydrophobic nano-silicon dioxide are first put into a microwave dryer for drying. Then the material is sucked by the automatic metering vacuum into the first feeding port of the parallel in-line three-screw extruder.

[0024] (2) The above-mentioned EEA and LDPE are automatically metered and automatically fed into the second feeding port of the parallel in-line three-screw extruder.

[0025] (3) The above-mentioned PB and grafted polyethylene wax are automatically metered and vacuum-suctioned into the third feeding port of the parallel in-line three-screw extruder.

[0026] (4) The component materials are kneaded-kneaded-kneaded into a distributed and dispersed composite melt in the same dire...

Embodiment 2

[0028] A kind of production method of polyolefin and nano-calcium carbonate compound (blend) new masterbatch

[0029] Include the following components in parts by mass:

[0030]

[0031]

[0032] The preparation method adopted is:

[0033] (1) The above-mentioned nano-calcium carbonate and hydrophobic nano-silicon dioxide are first put into a microwave dryer for drying. Then the material is sucked by the automatic metering vacuum into the first feeding port of the parallel in-line three-screw extruder.

[0034] (2) The above-mentioned EEA and LDPE are automatically metered and automatically fed into the second feeding port of the parallel in-line three-screw extruder.

[0035] (3) The above-mentioned PB and grafted polyethylene wax are automatically metered and vacuum-suctioned into the third feeding port of the parallel in-line three-screw extruder.

[0036](4) The component materials are kneaded-kneaded-kneaded into a distributed and dispersed composite melt in the ...

Embodiment 3

[0038] A kind of production method of polyolefin and nano calcium carbonate composite masterbatch

[0039] Include the following components in parts by mass;

[0040]

[0041]

[0042] The preparation method adopted is:

[0043] (1) The above-mentioned nano-calcium carbonate and hydrophobic nano-silicon dioxide are first put into a microwave dryer for drying. Then the material is sucked by the automatic metering vacuum into the first feeding port of the parallel in-line three-screw extruder.

[0044] (2) The above-mentioned EEA and LDPE are automatically metered and automatically fed into the second feeding port of the parallel in-line three-screw extruder.

[0045] (3) The above-mentioned PB and grafted polyethylene wax are automatically metered and vacuum-suctioned into the third feeding port of the parallel in-line three-screw extruder.

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Abstract

The invention discloses a polyolefin and nano calcium carbonate master batch and a production method thereof. The polyolefin and nano calcium carbonate master batch comprises the following componentsin parts by mass: 100 parts of nano calcium carbonate, 5-10 parts of nano silicon dioxide, 2-6 parts of PB-1, 3-8 parts of polyethylene wax, 5-8 parts of EEA resin and 8-15 parts of LDPE. Materials ofall the components are kneaded, mixed, kneaded and pressed into a distributed and dispersed composite molten mass in a homodromous parallel line-shaped three-screw extruder, and obtaining the completely molten and plasticized polyolefin nano calcium carbonate composite molten mass through molten mass exhausting; feeding the polyolefin nano calcium carbonate composite molten mass into a conical single-screw extruder with a double-bowl feeding machine; and controlling the temperature of the molten mass through the water temperature of a single-screw mandrel to 96-120 DEG C, performing compact compression extrusion molding, and performing surface grinding and hot cutting to obtain the polyolefin nano calcium carbonate composite master batch.

Description

technical field [0001] The invention belongs to polyolefin plastic and nano-calcium carbonate modification, which can increase the impact strength of plastic products, stabilize the size, and a low-cost composite masterbatch of polyolefin and nano-calcium carbonate and a production method thereof. Background technique [0002] Adding nano-calcium carbonate in the process of plastic processing can not only increase the compactness of plastic products, improve the strength of use, but also improve rheology and formability. Improve the flexural strength and flexural modulus of plastics, heat distortion temperature and dimensional stability, and reduce costs. Adding nano-calcium carbonate to polyethylene plastic film does not affect transparency and improves physical indicators such as water resistance and aging resistance. In plastic pipes, nano-calcium carbonate plays the role of steel reinforcement, reinforcement, toughening and other performance optimization. The particle ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L23/06C08L23/20C08L51/06C08L23/12C08K3/26C08K3/36C08J3/22
CPCC08J3/226C08J2423/08C08J2423/06C08J2423/20C08J2451/06C08J2323/06C08J2323/12C08K2201/011C08K2003/265C08K3/36C08K2201/003
Inventor 王亚楠王梓钢吕王星闫万琪
Owner 上海心尔新材料科技股份有限公司
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