Composite material with negative ion releasing function and preparation method thereof

A technology of composite materials and negative ions, which is applied in the field of composite materials and preparation, can solve the problems of difficulty in reducing production costs, cumbersome processes, and time-consuming, etc., and achieve the effects of improved elongation at break, scientific preparation methods, and improved mechanical properties

Inactive Publication Date: 2013-10-23
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there are deficiencies in the preparation method of this negative ion masterbatch. First, the process is loaded down with trivial details, needs multiple times of stirring and mixing, time-consuming and laborious, so that the production cost is difficult to reduce. Secondly, the final product obtained only has no negative ion release. Quantitative test results of the granular masterbatch, after mixing it with polypropylene, one of the polymer matrix, injection molding, extruding to make a test piece, the release of negative ions is also too low, the highest is only 1359 / s. cm 2

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The concrete steps of preparation are:

[0021] Step 1, first place tourmaline powder, additives and water in a ball mill (or stir and shear in an emulsifier) ​​for 2 hours; wherein, the weight ratio of tourmaline powder, additives and water is 5:10:3 , the auxiliary agent is polyethylene glycol, and the rotating speed during ball milling is 200r / min (the stirring rotating speed when the emulsifier is stirring and shearing is 5000r / min), to obtain a mixed slurry. Then the mixed slurry was dried at 130° C. for 10 h to obtain a powdery intermediate product.

[0022] Step 2, adding the powdery intermediate product to the polymer reaction monomer for in-situ synthesis, or mixing the powdery intermediate product with the polymer matrix and then placing it in a torque rheometer for melt blending for 30 minutes; wherein, The weight ratio of the auxiliary agent in the powdery intermediate product to the polymer matrix is ​​10:70, the polymer matrix is ​​polyamide, and the comp...

Embodiment 2

[0024] The concrete steps of preparation are:

[0025] Step 1, first place tourmaline powder, additives and water in a ball mill for ball milling (or stirring and shearing in an emulsifier) ​​for 2.5 hours; wherein, the weight ratio of tourmaline powder, additives and water is 9:8: 10. The auxiliary agent is polyethylene glycol, and the rotational speed during ball milling is 270r / min (the stirring rotational speed during emulsifier stirring and shearing is 5800r / min), to obtain a mixed slurry. Then the mixed slurry was dried at 140° C. for 9.5 hours to obtain a powdery intermediate product.

[0026] Step 2, adding the powdery intermediate product to the polymer reaction monomer for in-situ synthesis, or mixing the powdery intermediate product with the polymer matrix and then placing it in a torque rheometer for melt blending for 31 minutes; wherein, The weight ratio of the auxiliary agent in the powdery intermediate product to the macromolecular matrix is ​​8:75, and the mac...

Embodiment 3

[0028] The concrete steps of preparation are:

[0029] Step 1, first place tourmaline powder, additives and water in a ball mill for ball milling (or stirring and shearing in an emulsifier) ​​for 3 hours; wherein, the weight ratio of tourmaline powder, additives and water is 13:6:16 , the auxiliary agent is polyethylene glycol, and the rotating speed during ball milling is 330r / min (the stirring rotating speed when the emulsifier is stirring and shearing is 6500r / min), to obtain a mixed slurry. Then the mixed slurry was dried at 150° C. for 9 h to obtain a powdery intermediate product.

[0030] Step 2, adding the powdery intermediate product to the polymer reaction monomer for in-situ synthesis, or mixing the powdery intermediate product with the polymer matrix and then placing it in a torque rheometer for melt blending for 32 minutes; wherein, The weight ratio of the auxiliary agent in the powdery intermediate product to the polymer matrix is ​​6:82, the polymer matrix is ​​...

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Abstract

The invention discloses a composite material with a negative ion releasing function and a preparation method thereof. The composite material comprises tourmaline powder, an auxiliary agent(s) and a macromolecule matrix(es) which are in a weight ratio of 5-20:2-10:70-93, wherein the grain size of the tourmaline powder ranges from 500 nanometers to 3 microns, the auxiliary agent is one or more than two of polyethylene glycol, polypropylene glycol, polytetramethylene glycol, cetyl sodium sulfate, cetyl sodium sulfonate, octaphenyl polyoxyethyiene and cetyl trimethyl ammonium bromide, and the macromolecule matrix is one or more than two of polyethylene, polystyrene, polymethyl methacrylate, polyurethane, polyvinyl chloride and polyacrylate. The preparation method comprises the following steps of: firstly, ball milling the tourmaline powder, the auxiliary agent and water in a ball mill or stirring and shearing in an emulsifying machine; then, drying; adding the mixture into a macromolecule reaction monomer for in-situ synthesis, or mixing the mixture with the macromolecule matrix(es) and then carrying out melt blending after mixing the mixture, so as to prepare a target product. The composite material can automatically release a large quantity of negative ions.

Description

technical field [0001] The invention relates to a composite material and a preparation method, in particular to a composite material with the function of releasing negative ions and a preparation method thereof. Background technique [0002] With the continuous development of industry, agriculture and electronic information industry, the earth's environment has been polluted more and more seriously, especially in cities, the air pollution has reached an astonishing level. People yearn for the woods, fields, mountain villages, and seashores far away from the city, in pursuit of breathing fresh air rich in negative oxygen ions. Negative oxygen ions, referred to as negative ions, are free electrons generated by the ionization of air molecules under the action of high pressure or strong rays and are captured by oxygen. They are called "vitamins in the air" and are very beneficial to human health. They have the following functions: negative ions Can eliminate suspended particles...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/12C08L25/06C08L33/12C08L75/04C08L27/06C08L33/04C08L27/18C08L67/02C08L77/00C08K13/02C08K3/38
Inventor 王化吴钊峰田兴友郑康
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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