Unlock instant, AI-driven research and patent intelligence for your innovation.

Nanometer calcium carbonate polyolefin masterbatch and preparation method thereof

A technology of calcium carbonate polyolefin and nano-calcium carbonate, which is applied in the field of plastic applications, can solve the problems of cumbersome production process, low filling ratio of nano-calcium carbonate, and increased cost of plastic products, and achieve simple formula and production process, and improve gloss and The effect of transparency and high filling ratio

Inactive Publication Date: 2017-09-29
SHANXI LANHUA HUAMING NANO MATERIALS
View PDF6 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most of the existing polyolefin masterbatches are heavy calcium, light calcium or adding a small amount of nano-calcium carbonate products. The calcium carbonate in it is mainly used for filling and reducing costs, and has no effect on the performance of applied materials.
However, the currently existing nano-calcium carbonate polyolefin masterbatch has complex product formula, cumbersome production process, low filling ratio of nano-calcium carbonate, especially in the process of processing, it is easy to absorb moisture in the air, causing bubbles and cavities to appear in the product, reducing the Disadvantages such as mechanical properties of the product
Usually, pre-treatment in production requires heating and dehumidification, or adding special dehumidification masterbatch to increase the complexity of the formula, which greatly increases the cost of plastic products

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A kind of nano-calcium carbonate polyolefin masterbatch of the present embodiment is made up of the raw material of following percentage by weight:

[0021] Calcium oxide 3.5%, active nano calcium carbonate 55%, dispersant 0.5%, lubricant 11%, carrier resin 30%.

[0022] A method for preparing the described nanometer calcium carbonate polyolefin masterbatch, comprises the following steps:

[0023] 1) Add the above-mentioned 1250-mesh calcium oxide and the above-mentioned 1 / 5 dispersant into the high-speed mixer, raise the temperature to 90°C, and mix at a high speed of 400 rpm for 5 minutes at the same time, so that the dispersant can evenly adhere to the oxidation calcium surface;

[0024] 2) Add the above-mentioned active nano-calcium carbonate, lubricant and remaining dispersant to the high-speed mixer described in step 1), heat up to 90°C, and mix at a high speed of 2000 rpm for 20 minutes at the same time, so that The lubricant and the dispersant are evenly attac...

Embodiment 2

[0030] A kind of nano-calcium carbonate polyolefin masterbatch described in the present embodiment is made up of the raw material of following percentage by weight:

[0031] Calcium oxide 15%, active nano calcium carbonate 70%, dispersant 2.5%, lubricant 2.5%, carrier resin 10%

[0032] A kind of method of present embodiment prepares described nano-calcium carbonate polyolefin masterbatch, comprises the following steps:

[0033] 1) Add the above-mentioned 2000-mesh calcium oxide and 1 / 2 of the above-mentioned dispersant into a high-speed mixer, raise the temperature to 140°C, and mix at a high speed of 1000 rpm for 15 minutes to make the dispersant evenly adhere to the oxidation calcium surface;

[0034] 2) Add the above-mentioned active nano-calcium carbonate, lubricant, and remaining dispersant to the high-speed mixer described in step 1), heat up to 130°C, and mix at a high speed of 8000 rpm for 60 minutes at the same time, so that The lubricant and the dispersant are eve...

Embodiment 3

[0040] A kind of nano-calcium carbonate polyolefin masterbatch described in the present embodiment is made up of the raw material of following weight percent:

[0041] Calcium oxide 5%, active nano calcium carbonate 60%, dispersant 3%, lubricant 12%, carrier resin 20%

[0042] A kind of method of present embodiment prepares described nano-calcium carbonate polyolefin masterbatch, comprises the following steps:

[0043] 1) Add the above-mentioned 1500-mesh calcium oxide and the above-mentioned 1 / 4 dispersant into the high-speed mixer, raise the temperature to 120°C, and mix at a high speed of 800 rpm for 10 minutes at the same time, so that the dispersant is evenly attached to the oxidation calcium surface;

[0044] 2) Add the above-mentioned active nano-calcium carbonate, lubricant and remaining dispersant to the high-speed mixer described in step 1), heat up to 110°C, and mix at a high speed of 4000 rpm for 40 minutes at the same time, so that The lubricant and the dispersa...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Particle sizeaaaaaaaaaa
Particle sizeaaaaaaaaaa
Particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention belongs to the technical field of plastic application and particularly relates to a nanometer calcium carbonate polyolefin masterbatch and a preparation method thereof. The preparation method comprises the following steps: firstly, selecting calcium oxide, active nano-calcium carbonate, a dispersing agent, a lubricant and carrier resin as raw materials, adding the calcium oxide and part of the dispersing agent together into a high-speed mixer, raising the temperature and carrying out high-speed mixing to enable the dispersing agent to be uniformly attached to the surface of the calcium oxide; secondly, adding the active nano-calcium carbonate, the lubricant and the remaining dispersing agent together into the high-speed mixer, raising the temperature and then carrying out high-speed mixing to enable the lubricant and the dispersing agent to be uniformly attached to the surface of the active nano-calcium carbonate and the surface of the treated calcium oxide, and obtaining a mixture for later use; thirdly, uniformly and accurately adding the mixture and the carrier resin into a double-screw extruder through a weight-lost weigher, carrying out extruding, palletizing and air cooling by conventional working procedures to obtain the nanometer calcium carbonate polyolefin masterbatch. The nanometer calcium carbonate polyolefin masterbatch and the preparation method disclosed by the invention have the advantages that a formula and a production process are simple; the filling proportion of the nano-calcium carbonate is high; the nanometer calcium carbonate polyolefin masterbatch has the effects of defoaming, dehumidification and the like.

Description

technical field [0001] The invention belongs to the technical field of plastic application, and in particular relates to a nano-calcium carbonate polyolefin masterbatch and a preparation method thereof. Background technique [0002] Now plastic products have been widely used in various fields. Adding filler masterbatch in plastic processing can effectively reduce production costs and make a certain contribution to environmental protection. [0003] Most of the existing polyolefin masterbatches are heavy calcium, light calcium or products with a small amount of nano-calcium carbonate added. The calcium carbonate in it is mainly used for filling to reduce costs, and has no effect on the performance of applied materials. However, the currently existing nano-calcium carbonate polyolefin masterbatch has complex product formula, cumbersome production process, low filling ratio of nano-calcium carbonate, especially in the process of processing, it is easy to absorb moisture in the ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C08L23/00C08L23/06C08L51/06C08K9/04C08K9/06C08K7/00C08K3/26C08K3/22C08K5/55C08K5/54C08K5/09
CPCC08L23/00C08K3/22C08K3/26C08K5/09C08K7/00C08K9/04C08K2003/2206C08K2003/265C08K2201/003C08K2201/011C08L2201/10C08L23/06C08L51/06C08K9/06C08K5/55C08K5/54
Inventor 郭俊凌牛振宁钟鹏飞常迎新
Owner SHANXI LANHUA HUAMING NANO MATERIALS