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Gas phase nano silicon dioxide master batches for plastic modification and preparation method thereof

A nano-silica, silicon dioxide technology, applied in the field of plastic modification, can solve problems such as dust pollution, environmental impact, and easy agglomeration

Inactive Publication Date: 2013-10-30
SUZHOU CUIZHI NEW TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The above-mentioned fumed silica products, because they exist in the form of powder, are often agglomerated. During use, they are not easy to disperse when added to different materials, causing dust pollution and have a great impact on the environment.
In particular, the application in the field of plastic modification has been limited.

Method used

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  • Gas phase nano silicon dioxide master batches for plastic modification and preparation method thereof
  • Gas phase nano silicon dioxide master batches for plastic modification and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Nano-silica masterbatch formula for plastic modification (weight percent)

[0048] (1) Grafted polyethylene resin - 40%;

[0049] (2) Hydrophobic fumed nano-silica——60%;

[0050] (3) Dispersant (TAF) ---- 1%

[0051] (4) 1010 / 168 antioxidant - 0.2 / 0.2%.

[0052] The masterbatch is used for plastic modification, and the addition amount is 8%.

Embodiment 2

[0054] Nano-silica masterbatch formula for plastic modification (weight percent)

[0055] (1) Grafted polyethylene resin - 50%;

[0056] (2) Hydrophobic fumed nano-silica——50%;

[0057] (3) Dispersant (TAF) ---- 1%;

[0058] (4) 1010 / 168 antioxidant - 0.2 / 0.2%.

[0059] The masterbatch is used for plastic modification, and the addition amount is 10%.

Embodiment 3

[0061] Nano-silica masterbatch formula for plastic modification (weight percent)

[0062] (1) Grafted polyethylene resin - 60%;

[0063] (2) Hydrophobic fumed nano-silica——40%;

[0064] (3) Dispersant (TAF) ---- 1%;

[0065] (4) 1010 / 168 antioxidant - 0.2 / 0.2%.

[0066] The masterbatch is used for plastic modification, and the addition amount is 12%.

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Abstract

The invention discloses gas phase nano silicon dioxide master batches for plastic modification and a preparation method thereof. The preparation method is characterized by comprising the following steps of: firstly, preparing gas phase method nano silicon dioxide, and performing surface treatment on the nano silicon dioxide by using octamethylcy-clotetrasiloxane of which accounts for 1-10% of the total weight as a treatment agent to ensure that the nano silicon dioxide becomes hydrophobic from being hydrophilic; then slowly stirring and mixing the hydrophobic silicon dioxide with polyethylene which is grafted with maleic anhydride according to the following raw material formula in percentage by weight: 40-60% of grafted polyethylene resin, 60-40% of the hydrophobic silicon dioxide, 0.2-0.6% of an antioxidant and 0.5-1.5% of a dispersant; and finally, extruding the mixed material from a twin-screw extruder for granulating so as to prepare the nano silicon dioxide master batches for plastic modification. The gas phase nano silicon dioxide master batches can be widely used in the industries and fields including plastics, rubbers, daily chemical industry and the like, and the strength, wear resistance, corrosion resistance, lubricating property and the like of a product are significantly improved.

Description

technical field [0001] The invention relates to the preparation and application of nanometer powder materials. In particular, it relates to a gas-phase nano silicon dioxide masterbatch for plastic modification and a preparation method thereof. The masterbatch can be used in industries and fields such as plastics, rubber, agricultural chemicals, daily chemicals, paper fillers, toner fillers, etc. Especially used in the field of plastic modification, the surface wear resistance, strength and other mechanical properties of the modified composite material can be greatly improved. And because the product is in the form of masterbatch, it can be used conveniently and environmentally friendly during the application process. Background technique [0002] Silicon is the second most abundant element on the earth, its content is second only to oxygen, most of which exist in the form of silicon dioxide, and its application fields are very wide. [0003] The traditional production met...

Claims

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Application Information

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IPC IPC(8): C08L51/06C08K13/06C08K9/06C08K3/36C08J3/22C01B33/12B29B9/06B29C47/92B29C48/92
CPCB29C48/04B29C48/40
Inventor 孟繁茂
Owner SUZHOU CUIZHI NEW TECH DEV