Polyvinyl chloride (PVC) photodegradation nanocatalyst and preparation method thereof, and polyvinyl chloride with controllable photodegradation speed

A nano-catalyst and polyvinyl chloride technology, applied in chemical instruments and methods, physical/chemical process catalysts, nanotechnology, etc., can solve the problems of unrealizable degradation time and speed, high manufacturing cost, etc., and achieve photodegradation and photodegradation Speed ​​problem, effect of solving environmental load problem

Inactive Publication Date: 2011-09-07
周凯
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the degradability of polyvinyl chloride has also been achieved, the control of the degradation time and speed cannot be achieved, and the manufacturing cost is relatively high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0009] The polyvinyl chloride photodegradation nano catalyst is composed of a ternary system nano catalyst Ti-F-Co and Ti-N-Co system, and the mass ratio of the elements is: Ti-F-Co:100:100:2; Ti-N-Co: 100:100:2.

[0010] The mass ratio of elements in the catalyst may also be: Ti-F-Co: 100:50:0.1; Ti-N-Co: 100:50:0.1.

[0011] The mass ratio of elements in the catalyst can also be: Ti-F-Co: 100:70:1; Ti-N-Co: 100:70:1.

[0012] Above-mentioned catalyst preparation method is described in further detail:

[0013] Prepare the ethanol solution of titanium tetrachloride, and then prepare the ethanol solution of cobalt nitrate, then mix the two solutions with the solution of ammonium fluoride, and control the ratio between the elements at Ti-F-Co:100:100:2 (100: 50:0.1---100:100:2), Ti-N-Co:100:100:2 (100:50:0.1---100:100:2), add the same amount of activated carbon to prepare After aging at room temperature, dry it in a drying oven at 30-60°C, grind it and burn it in a muffle fur...

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Abstract

The invention discloses a polyvinyl chloride (PVC) photodegradation nanocatalyst and a preparation method thereof, and polyvinyl chloride with a controllable photodegradation speed. The photodegradation nanocatalyst consists of a ternary system nanocatalyst Ti-F-Co and a Ti-N-Co system, wherein the mass ratio of Ti to F to Co is from 100:50:0.1 to 100:100:2; and the mass ratio of Ti to N to Co isfrom 100:50:0.1 to 100:100:2. The polyvinyl chloride with the controllable photodegradation speed is prepared by adding 2.5-3 percent of photodegradation nanocatalyst into polyvinyl chloride. By adopting the catalyst, the PVC is made degradable within a certain period of time, photodegradation and photodegradation speed of a PVC packaging material under natural condition are realized, and the problem of environmental load caused by non-degradation in natural environment is solved.

Description

technical field [0001] The present invention relates to a kind of preparation of photocatalyst, especially a kind of formula that is used to add the photodegradation nano-catalyst of degrading PVC in polyvinyl chloride (PVC) packaging material, and the photodegradation speed that adopts this photodegradation agent to prepare is controllable Type polyvinyl chloride, this degradable polyvinyl chloride has a good prospect in packaging materials. Background technique [0002] Polyvinyl chloride has been widely used due to its excellent properties, but the environmental pressure brought about by its stability continues to increase, and the post-treatment problems of polyvinyl chloride are particularly difficult. Although methods such as landfilling, burning and recycling can be adopted, the research results have proved that these methods have disadvantages to varying degrees. Due to its excellent properties, polyvinyl chloride has been widely used in the field of pharmaceutical ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/135A62D3/10C08J11/16C08L27/06B82Y30/00B82Y40/00
CPCY02W30/62
Inventor 周凯刘保健郭凌华
Owner 周凯
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