Composite material capable of releasing negative ion produced from polythene / opal, and preparation technique

A composite material and opal technology, which is applied in the field of polyethylene/opal composite materials that release negative ions and their preparation technology, and can solve the problems of imbalance of positive and negative ions, destruction of air cleanliness, etc.

Inactive Publication Date: 2007-05-09
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, pollution continues to destroy the cleanliness of the air, and the balance of positive and negative ions in the air is seriously out of balance

Method used

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  • Composite material capable of releasing negative ion produced from polythene / opal, and preparation technique

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The reaction pressure is 0.1MPa, the reaction temperature is 70°C, the reaction solvent is 50ml of toluene, the content of the supported catalyst (OC) is 1 μmol, the content of the co-catalyst MAO is 1000 μmol, and the polymerization reaction is 30 minutes to obtain a polyethylene / opal composite material with a reactivity of 3.50× 10 6 g(mol Zr h) -1 , with a melting point of 133.3°C and a viscosity-average molecular weight of 2.83×10 4 g / mol, in which the content of opal is 3.2%, the number of negative ions released by the composite material is 2240 / cm 3 above.

Embodiment 2

[0019] The reaction pressure is 0.1MPa, the reaction temperature is 70°C, the reaction solvent is 50ml toluene, the supported catalyst (OC) content is 1 μmol, the co-catalyst MAO content is 2000 μmol, and the polymerization reaction is 30min to obtain a polyethylene / opal composite material with a reactivity of 8.98× 10 6 g(mol Zr h) -1 , with a melting point of 133.2°C and a viscosity-average molecular weight of 2.46×10 4 g / mol, in which the opal content is 1.3%, the number of negative ions released by the composite material is 3600 / cm 3 above.

Embodiment 3

[0021] The reaction pressure is 0.1MPa, the reaction temperature is 70°C, the reaction solvent is 50ml toluene, the supported catalyst (OC) content is 1 μmol, the co-catalyst MAO content is 3000 μmol, and the polymerization reaction is 30min to obtain a polyethylene / opal composite material with a reactivity of 10.26× 10 6 g(mol Zr h) -1 , with a melting point of 133.0°C and a viscosity-average molecular weight of 2.32×10 4 g / mol, where the opal content is 1.1%, the number of negative ions released by the composite material is 2810 / cm 3 above.

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Abstract

This invention discloses a method for preparing anion-releasing polyethylene/opal composite. The method comprises: loading metallocene catalyst Cp2ZrCl2 onto opal powder to obtain supported metallocene catalyst, and performing coordination polymerization on ethylene under normal pressure to form polyethylene/opal composite. The composite can release anions more than 1000/cm3, which can produce matters and rays that are good for human health. Besides, the composite has antibacterial, poison-preventative and odor-removing functions, and can improve human immunity and protect the environment. The composite can be further processed into a wide variety of environmentally friendly plastic products.

Description

technical field [0001] The invention relates to a polyethylene / opal composite material that releases negative ions and its preparation process. The composite material has the functions of antibacterial, anti-virus and deodorization because it can release negative ions, and has good application prospects. It can be manufactured after post-processing A variety of green and environmentally friendly plastic products. Background technique [0002] Polyolefin materials have many advantages, such as large adjustable range of mechanical properties, thermal properties and crystallinity, excellent processing performance, good safety and stability, etc., so they can be widely used in many fields such as industry, agriculture, military, medical and health, daily life, etc. . At present, various polyolefin materials synthesized by coordination polymerization have become the largest proportion of polymer products in the world. In 2000, the world's polyethylene production reached 53 mill...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08K3/36C08F4/651
Inventor 李青山徐浩董金勇王新伟郭存悦
Owner YANSHAN UNIV
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