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

Preparation method of polyethylene PE nanoscale reinforced and modified particles

A nano-scale, polyethylene technology, applied in the field of preparation of nano-scale reinforced modified particles, can solve the problems of high price, agglomeration, small particle size, etc., and achieve the effect of improving dimensional stability

Active Publication Date: 2013-12-18
天成高新纳米复合材料有限公司
View PDF4 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the addition of these inorganic materials significantly increases the strength of the product while losing its toughness; another method is to add a reinforcing agent, but it is expensive and costly, which brings pressure to the manufacturer
In recent years, people have considered using nano-scale inorganic materials as reinforcing agents to add to polymers, but because their particle size is too small, agglomeration often occurs during application, and it is difficult to really play the role of nano-materials. At the same time It will also cause serious dust pollution in production, which will cause difficulties in production and processing.
The existence of the above problems seriously limits the application of nanomaterials in polymers.

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of polyethylene PE nanoscale reinforced and modified particles
  • Preparation method of polyethylene PE nanoscale reinforced and modified particles
  • Preparation method of polyethylene PE nanoscale reinforced and modified particles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Step 1: Weigh 50Kg of nano-scale calcium carbonate by weight, put it into a mixer with a temperature of 105°C, start low-speed operation, and mix at a speed of 300 to 500 rpm, and at the same time mix the The air vent is opened to facilitate the discharge of moisture in the nano-calcium carbonate to achieve the effect of dehumidification. This step takes 10 minutes to 15 minutes.

[0022] Step 2: Take 1.25Kg of coupling agent by weight, put it into the dried nano-calcium carbonate in step 1, and increase the speed of the mixer to 800 to 1000 revolutions per minute. This step takes 5 minutes to 10 minutes.

[0023] Step 3: take by weight percentage the low-density polyethylene 1F7B of 30Kg, the high-density polyethylene 5000S of 10Kg, the compatibilizer of 2Kg, the lubricant of 0.75Kg, the antioxidant of 3.5Kg, the whitening agent of 2.5Kg, Put the above materials into the mixer, and mix them with the nano-calcium carbonate coated on the surface of the coupling agent i...

Embodiment 2

[0028] Step 1: Weigh 60Kg of nano calcium carbonate by weight, put it into a mixer with a temperature of 105°C, start the low-speed operation, and mix at a speed of 300-500 rpm, and at the same time mix the The air vent is opened to facilitate the discharge of moisture in the nano-calcium carbonate to achieve the effect of dehumidification. This step takes 10 minutes to 15 minutes.

[0029] Step 2: Take 1.5Kg of coupling agent by weight, put it into the dried nano-calcium carbonate in step 1, and increase the speed of the mixer to 800-1000 rpm. This step takes 5 minutes to 10 minutes.

[0030] Step 3: take by weight percentage the low-density polyethylene 1F7B of 22Kg, the high-density polyethylene 5000S of 8Kg, the compatibilizer of 2.5Kg, the lubricant of 1Kg, the antioxidant of 3Kg, the whitening agent of 2Kg, the above The material is put into the mixer, and mixed with the nano-calcium carbonate coated on the surface of the coupling agent in step 2 at a high speed at a s...

Embodiment 3

[0036] Step 1: Weigh 70Kg of nano-calcium carbonate by weight, put it into a mixer with a temperature of 105°C, start the low-speed operation, and mix at a speed of 300 to 500 rpm. The air vent is opened to facilitate the discharge of moisture in the nano-calcium carbonate to achieve the effect of dehumidification. This step takes 10 minutes to 15 minutes.

[0037] Step 2: Take 1.75Kg of coupling agent by weight, put it into the dried nano-calcium carbonate in step 1, and increase the speed of the mixer to 800-1000 rpm. This step takes 5 minutes to 10 minutes.

[0038] Step 3: take by weight percentage the low-density polyethylene 1F7B of 15Kg, the high-density polyethylene 5000S of 5Kg, the compatibilizer of 3Kg, the lubricant of 1.25Kg, the antioxidant of 2.5Kg, the whitening agent of 1.5Kg, Put the above materials into the mixer, and mix them with the nano-calcium carbonate coated on the surface of the coupling agent in step 2 at a high speed at a speed of 800 to 1000 rpm...

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 diameteraaaaaaaaaa
shrinkageaaaaaaaaaa
shrinkageaaaaaaaaaa
Login to View More

Abstract

The invention relates to a preparation method of polyethylene PE nanoscale reinforced and modified particles, belonging to the field of chemical engineering and fine chemical engineering. The preparation method comprises the following steps: 1, coating nano calcium carbonate by a surface treating agent; 2, weighing the following components in parts by weight: low density polyethylene, high density polyethylene, an antioxygen, a lubricant, a compatibilizer and a brightener, and fully mixing the components with activated brightener; 3, casting mixed materials into a twin-screw extruder to prepare the PE nanoscale reinforced and modified particles. The preparation method provided by the invention has the advantages that the activating rate of nano calcium carbonate reaches over 98% by adding the self-prepared nano calcium carbonate; conversion from hydrophilicity to lipophilicity is completed; meanwhile, the compatibilizer is added, so that nano calcium carbonate can be distributed in a polymer in form of primary particles. The strength of the original formula is improved by over 20% by adding the material into a formula system with polyethylene as carrier resin according to a certain proportion, and meanwhile, the dimensional stability of the material is greatly improved.

Description

technical field [0001] The invention belongs to the fields of chemical engineering and fine chemical industry, and in particular relates to a preparation method of nanoscale reinforced modified particles added to polyethylene PE plastics during production. Background technique [0002] Due to its excellent mechanical properties, polyethylene has been widely valued by practitioners in the plastics processing industry, so that more and more plastic products with polyethylene as the main body appear in life. The main advantages of polyethylene are low density and good toughness, but it also has certain defects, such as low strength and large shrinkage, which restrict its application in life and production. With the continuous advancement of science and technology in recent years, people have found many ways to modify polyethylene to improve its shortcomings and give full play to its advantages. The current method of strengthening polyethylene is mainly to add inorganic mineral...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L51/06C08K9/10C08K9/04C08K3/26
Inventor 邵群邦李玲刘忠甫张楠奇
Owner 天成高新纳米复合材料有限公司