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PVC plastic

A PVC resin and plastic technology, applied in the field of plastics, can solve the problems of easy yellowing of appearance color and deterioration of mechanical properties of materials, etc., and achieve the effects of excellent anti-ultraviolet aging performance, good mechanical properties and long service life

Inactive Publication Date: 2017-12-01
李春秀
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, under the action of ultraviolet light, the appearance color of PVC is prone to yellowing, which will cause the deterioration of the mechanical properties of the material.

Method used

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  • PVC plastic
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Weigh each raw material (parts by weight): 101 parts of PVC resin, 22 parts of tributyl citrate, 31 parts of tripropyl citrate, 0.3 part of paraffin, 71 parts of ATO nanopowder, 3-aminopropyltriethoxy 3 parts of silane, 3 parts of stabilizer, 0.6 part of ultraviolet absorber.

[0028] The stabilizer is obtained by uniformly stirring and mixing phenylthiourea, urea, and 1-tert-butyl-3-phenylthiourea in a mass ratio of 1:1:1.

[0029] Described ultraviolet absorber is made of 2-(2-hydroxyl-5-benzyl) benzotriazole, 2,2'-dihydroxybenzophenone, 2-hydroxyl-4-n-octyloxybenzophenone according to The mass ratio is 1:1:1 and it is obtained by stirring and mixing evenly.

[0030] The preparation method of above-mentioned PVC plastics, comprises the following steps:

[0031] (1) take each component according to parts by weight;

[0032] (2) Add PVC resin and paraffin to the mixing mixer for mixing. The mixing speed is 60 rpm, and the stirring time is 4 minutes. Butyl ester, tri...

Embodiment 2

[0035] It is basically the same as Example 1, except that the stabilizer is obtained by stirring and mixing uniformly urea and 1-tert-butyl-3-phenylthiourea at a mass ratio of 1:1. Obtain the PVC plastic of embodiment 2.

Embodiment 3

[0037] It is basically the same as in Example 1, except that the stabilizer is obtained by stirring and mixing uniformly phenylthiourea and 1-tert-butyl-3-phenylthiourea in a mass ratio of 1:1. Obtain the PVC plastic of embodiment 3.

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Abstract

The invention discloses a PVC plastic. The PVC plastic is prepared from the following raw materials in parts by weight: 96-104 parts of PVC resin, 16-24 parts of tributyl citrate, 26-34 parts of tripropyl citrate, 0.2-0.4 part of paraffin, 66-74 parts of ATO nano powder, 2-4 parts of 3-amino propyl triethoxy silane, 2-4 parts of a stabilizer and 0.2-0.8 part of an ultraviolet light absorber. The PVC plastic has better mechanical property and excellent ultraviolet ageing resistance, is long in service life and is especially applicable to long-term outdoor use.

Description

technical field [0001] The invention relates to a plastic, in particular to a PVC plastic. Background technique [0002] Polyvinyl chloride (PVC) is the second largest general-purpose plastic in output after polyethylene (PE). In recent years, PVC materials have been widely used in outdoor products, such as PVC profiles, water supply and drainage pipes, and automotive exterior parts. , Agricultural films, external wall hanging panels, etc. However, under the action of ultraviolet light, the appearance color of PVC is prone to yellowing, which in turn causes the deterioration of the mechanical properties of the material. Therefore, in order to promote the sustainable and stable development of PVC materials, it is of great significance to carry out research on the anti-ultraviolet aging of PVC materials. [0003] The invention provides a PVC plastic, which has excellent anti-ultraviolet aging performance and is suitable for outdoor products. Contents of the invention [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L91/06C08K13/02C08K3/22C08K5/11C08K5/544C08K5/405C08K5/21C08K5/3475C08K5/132
CPCC08L27/06C08K2003/2231C08K2201/011C08K2201/014C08L2201/08C08L91/06C08K13/02C08K3/22C08K3/2279C08K5/11C08K5/544C08K5/405C08K5/21C08K5/3475C08K5/132
Inventor 李春秀
Owner 李春秀