Preparation method of ultravioresistant PVC composite material suitable for plateau environment

A composite material and plateau environment technology, applied in the field of new materials, can solve the problems of poor light stability, weak absorption, and inability to absorb visible light, etc., and achieve the effects of increasing flame retardancy, reducing fire occurrence, and optimizing UV resistance

Inactive Publication Date: 2015-04-08
QINGHAI UNIVERSITY
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Problems solved by technology

However, due to the wide bandgap width of titanium dioxide, it cannot absorb the energy of visible light, so its outdoor use is limited; zinc oxide and titanium dioxide have similar bandgap widths, and also have excellent ultraviolet absorption properties, which block long-wave ultraviolet rays ( 355nm~380nm) is even better than titanium dioxide, but the UV absorption of zinc oxide in the short-wave range (330nm~355nm) is not strong, and the photostability is poor

Method used

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Embodiment Construction

[0028] The technical scheme of a preparation method of a PVC composite material suitable for plateau environment and anti-ultraviolet in the present invention will be further described below in conjunction with the examples.

[0029] Volume fraction ratio of the present invention: nano TiO 2 The mass fraction of particles (20nm, analytically pure, Aladdin reagent) is 0.6%; the mass fraction of nano-ZnO particles (30nm, analytically pure, Aladdin reagent) is 1.8%; nano-Mg(OH) 2 The mass fraction of particles (80nm, analytical grade, Aladdin reagent) is 0.6%; the balance is polyvinyl chloride (PVC, model: SG5, standard: GB / T5761-2006).

[0030] Preparation technique of the present invention is:

[0031] 1) Preparation of nano-reinforcement body

[0032] 1.1) Calculation and weighing of matrix and reinforcement;

[0033] First weigh the PVC, then calculate and weigh nano-magnesium hydroxide, zinc oxide and titanium dioxide particles according to the mass of PVC, so that the ma...

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Abstract

The invention belongs to the technical field of new material, and concretely relates to an improved preparation technology for enhancing the functionality of a polyvinyl chloride (PVC) material. The preparation technology of the present invention comprises the following steps: 1)preparing a nano reinforcement; and 2)preparing the hybrid PVC functional composite material by a chemical solution method to prepare the hybrid PVC functional composite material. According to the invention, zinc oxide and titanium dioxide are composited for usage, anti ultraviolet performance of the composite material can be greatly increased; nano-sized magnesium hydroxide, zinc oxide and titanium dioxide particles are organically combined to prepare the PVC functional composite material, PVC anti ultraviolet capability can be optimized, aging rate can be reduced, service life is prolonged, flame retardation performance is enhanced, fire hazard generation is reduced, and the external environment adaptation capability of the PVC material at Qinghai-Tibet plateau can be finally increased.

Description

technical field [0001] The invention belongs to the technical field of new materials, in particular to an improved preparation process aimed at enhancing the functionality of polyvinyl chloride (PVC) materials. Background technique [0002] Plastic is one of the four basic materials, and polyvinyl chloride (PVC) is one of the earliest plastic varieties to achieve industrial production in the world. Its application involves almost all industries of production and life, and has important strategic significance in the process of national economic development. PVC has the advantages of flame retardant, chemical corrosion resistance, wear resistance, excellent electrical insulation and high mechanical strength, and is widely used in industry, agriculture, construction, daily necessities, packaging and power industries. The economic benefits of PVC play a decisive role in the economic benefits of the whole country. [0003] Qinghai Province is located on the Qinghai-Tibet Platea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08K13/06C08K9/06C08K3/22C08J5/18
CPCC08J5/18C08J2327/06C08K3/22C08K9/06C08K13/06C08K2003/2224C08K2003/2241C08K2003/2296C08K2201/011C08L2201/02C08L2201/08C08L27/06
Inventor 南辉李小松王刚韦浩民陈慧媛王冲
Owner QINGHAI UNIVERSITY
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