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Polychloroethylene ultraviolet light stabilizer, light resistant polychloroethylene and preparation method

A polyvinyl chloride and light stabilizer technology, applied in the polymer field, can solve the problems of poor compatibility of PVC substrates, high particle cost, insufficient light stabilization efficiency, etc., to improve compatibility, improve product mechanics, UV light good protective effect

Active Publication Date: 2009-04-01
SICHUAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention proposes a PVC ultraviolet light stabilizer (abbreviated as light stabilizer) aimed at the deficiencies of the prior art, the UV-resistant PVC prepared therefrom and its preparation method, to solve the problem of TiO in the prior art. 2 High cost of particles, insufficient light stabilization efficiency, and poor compatibility with PVC substrates

Method used

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  • Polychloroethylene ultraviolet light stabilizer, light resistant polychloroethylene and preparation method
  • Polychloroethylene ultraviolet light stabilizer, light resistant polychloroethylene and preparation method
  • Polychloroethylene ultraviolet light stabilizer, light resistant polychloroethylene and preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0035] The preparation of ultraviolet light stabilizer embodiment 1: TiO 2 The particles are placed in a desiccator to dry for about 2 hours, and the pre-dried TiO 2 Particles, PVC resin and functional additive coupling agent are prepared according to a given ratio, mixed and placed in a high-energy vibration mill at 800 rpm, and mixed and vibrated for about 8 hours at about 30°C to obtain PVC UV light stabilizer.

Embodiment 2

[0037] The preparation of ultraviolet light stabilizer embodiment 4: TiO 2The particles are placed in a desiccator for drying treatment for about 1 hour, and the pre-dried TiO 2 Particles, PVC resin and functional auxiliary agent coupling agent are prepared according to a given ratio, mixed and placed in a high-energy vibrating mill at 600 rpm, and vibrating and milled for about 12 hours at about 20°C to obtain PVC UV light stabilizer.

[0038] The preparation methods of other examples are basically the same as those of the above examples.

[0039] Provide the embodiment and the test result of the light-resistant PVC containing the ultraviolet light stabilizer provided by the present invention below

[0040] Example 1:

[0041] Respectively 2.5phr, 5phr new ultraviolet light stabilizer I, 2phr organotin heat stabilizer, 0.5phr stearic acid are added in the PVC resin (PVC-SG8 of Yibin Tianyuan chemical factory) of 100phr, in the two-roll mixer Knead at about 170°C for about...

Embodiment 3

[0049] 2.0phr, 5phr novel light stabilizer III, 4phr organotin heat stabilizer, 0.8phr stearic acid are added in the PVC resin (PVC-SG8 of Yibin Tianyuan chemical factory) of 100phr respectively, in the two-roll mixer Mix at about 170°C for about 10 minutes, and then press at about 180°C to form sheets and plates of required thickness for performance testing after accelerated aging. (1#: Add 2.0phr content of TiO 2 PVC sample of composite particles; 2#: adding 5phr of TiO 2 PVC sample of composite particles)

[0050]

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PUM

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Abstract

The invention discloses a PVC UV stabilizer, light-resistant PVC containing the UV stabilizer and a preparation method for the UV stabilizer. The PVC UV stabilizer mainly comprises inorganic TiO2 particles, PVC resin and a coupling agent. The light-resistant PVC mainly comprises PVC resin, a UV stabilizer, a heat stabilizer, and a lubricant. The preparation method for the UV stabilizer comprises: the TiO2 particles, the PVC resin and functional auxiliaries are placed into vibration grinding equipment according to the proportion for carrying out solid-phase chemical reaction and obtaining a novel UV stabilizer. The long-term retention rate for the comprehensive properties of the PVC product containing the UV stabilizer is greatly increased. The UV stabilizer can be used for various products such as polyvinyl chloride pipes, profiles, sheets, and the like.

Description

technical field [0001] The invention relates to the technical field of polymers, more specifically to an ultraviolet light stabilizer for polyvinyl chloride (PVC) and PVC containing the ultraviolet light stabilizer, as well as a preparation method for the ultraviolet light stabilizer. technical background [0002] Rutile titanium dioxide particles (TiO 2 ), its structure is a tetragonal crystal, which has a good shielding effect on ultraviolet light in the range of 290nm to 420nm, and after absorbing ultraviolet light, its physical state is stable, does not decompose, does not change color, and has outstanding optical stability and durability. Therefore, TiO 2 It is widely used as a light shielding agent for PVC materials, such as: Luis Pimentel Real et al. 2 The particles were directly added to PVC door and window materials, and it was found that under the same photoaging effect, the elongation at break of the material was significantly improved. C.Anton-Prinet and other ...

Claims

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Application Information

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IPC IPC(8): C08K9/04C08L27/06C08K5/57C08K5/09
Inventor 郭少云付勰皮红袁念眉陈跃
Owner SICHUAN UNIV
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