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Environment-friendly medical-grade PVC (polyvinyl chloride) specialized powder calcium zinc stabilizer and preparation method thereof

A powder calcium zinc, medical grade technology, applied in the field of environment-friendly medical grade PVC special powder calcium zinc stabilizer and its preparation field, can solve the problems of reduced PVC material strength, easy discoloration, poor weather resistance, etc. Strength, effects of increasing strength and toughness

Inactive Publication Date: 2018-01-23
常熟市法艾新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the calcium-zinc composite stabilizers currently on the market, on the one hand, have poor weather resistance and are prone to discoloration; on the other hand, when the added content is high, the strength of PVC materials will be significantly reduced

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 100 parts by weight of calcium stearate, 10 parts by weight of zinc stearate, 5 parts by weight of nano-titanium dioxide, 5 parts by weight of nano-silica, 5 parts by weight of glyceryl monostearate, 5 parts by weight of carbon nanotube modified polyphosphazene-polyethersulfone block copolymer, 1 part by weight of β-(3,5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate and 1 The ultraviolet absorber UV-531 of parts by weight is added in the high-speed mixer, stirred at 70 ℃ for 8 minutes, the stirring speed is 1300r / min, after cooling, a calcium-zinc composite stabilizer is obtained;

[0032] The preparation method of the carbon nanotube modified polyphosphazene-polyethersulfone block copolymer is:

[0033] (1) In a 300 ml round bottom flask, dissolve 0.41 g of hexachlorocyclotriphosphazene and 0.94 g of 4,4'-dihydroxydiphenyl sulfone in 190 ml of acetonitrile, then add 1.5 ml of triethylamine and place in React in an ultrasonic water bath at 50°C for 10 hours. Af...

Embodiment 2

[0037]100 parts by weight of calcium stearate, 40 parts by weight of zinc stearate, 10 parts by weight of nano-titanium dioxide, 10 parts by weight of nano-silica, 10 parts by weight of glyceryl monostearate, 10 parts by weight of glyceryl monostearate, carbon nanotube modified polyphosphazene-polyethersulfone block copolymer, 5 parts by weight of β-(3,5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate and 5 The ultraviolet absorber UV-531 of parts by weight is added in the high-speed mixer, stirred at 70 ℃ for 8 minutes, the stirring speed is 1300r / min, after cooling, a calcium-zinc composite stabilizer is obtained;

[0038] The preparation method of the carbon nanotube modified polyphosphazene-polyethersulfone block copolymer is:

[0039] (1) In a 300 ml round bottom flask, dissolve 0.41 g of hexachlorocyclotriphosphazene and 0.94 g of 4,4'-dihydroxydiphenyl sulfone in 190 ml of acetonitrile, then add 1.5 ml of triethylamine and place in React in an ultrasonic water ba...

Embodiment 3

[0043] 100 parts by weight of calcium stearate, 25 parts by weight of zinc stearate, 8 parts by weight of nano-titanium dioxide, 8 parts by weight of nano-silica, 8 parts by weight of glyceryl monostearate, 7 parts by weight of carbon nanotube modified polyphosphazene-polyethersulfone block copolymer, 3 parts by weight of β-(3,5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate and 3 The ultraviolet absorber UV-531 of parts by weight is added in the high-speed mixer, stirred at 70 ℃ for 8 minutes, the stirring speed is 1300r / min, after cooling, a calcium-zinc composite stabilizer is obtained;

[0044] The preparation method of the carbon nanotube modified polyphosphazene-polyethersulfone block copolymer is:

[0045] (1) In a 300 ml round bottom flask, dissolve 0.41 g of hexachlorocyclotriphosphazene and 0.94 g of 4,4'-dihydroxydiphenyl sulfone in 190 ml of acetonitrile, then add 1.5 ml of triethylamine and place in React in an ultrasonic water bath at 50°C for 10 hours. A...

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Abstract

The invention discloses an environment-friendly medical-grade PVC (polyvinyl chloride) specialized powder calcium zinc stabilizer. The environment-friendly medical-grade PVC (polyvinyl chloride) specialized powder calcium zinc stabilizer is prepared from, by weight, 100 parts of calcium stearate, 10-40 parts of zinc stearate, 5-10 parts of nanometer titania, 5-10 parts of nanosilicon dioxide, 5-10parts of glycerin monostearate, 5-10 parts of a carbon nanotube modified polyphosphazene-polyether sulfone block copolymer, 1-5 parts of beta-(3,5-ditert-butyl-4-hydroxyphenyl) propionate octadecyl alcohol and 1-5 parts of an ultraviolet light absorber UV-531. The environment-friendly medical-grade PVC (polyvinyl chloride) specialized powder calcium zinc stabilizer has the advantages of good weather fastness and less proneness to discoloration, service life of the PVC medical material can be prolonged, mechanical strength of the PVC medical material can be greatly improved, and good heat resistance and environment friendliness are achieved.

Description

technical field [0001] The invention belongs to the technical field of chemical stabilizers. More specifically, the invention relates to an environment-friendly medical-grade PVC special powder calcium-zinc stabilizer and a preparation method thereof. Background technique [0002] With the development of the medical industry, the demand for medical grade polyvinyl chloride (PVC) continues to increase. In the prior art, in the process of preparing PVC medical materials, it is usually necessary to add stabilizers to improve performance. Usually, a non-toxic calcium-zinc composite stabilizer is generally used, which is a non-toxic, environmentally friendly heat stabilizer recognized worldwide, and has the advantages of low price and good lubricity. However, the calcium-zinc composite stabilizers currently on the market, on the one hand, have poor weather resistance and are prone to discoloration; on the other hand, when the added content is high, the strength of PVC materials ...

Claims

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Application Information

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IPC IPC(8): C08L81/06C08K13/04C08K7/24C08K5/098C08K3/22C08K5/103C08K5/134C08K5/132C08K3/36C08G75/23C08L27/06
Inventor 范建华
Owner 常熟市法艾新材料科技有限公司
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