CN103319809A - Ageing-resistant ABS/PVC (Acrylonitrile-Butadiene-Styrene/Polyvinyl Chloride) composite material - Google Patents

Abstract

The invention provides an ageing-resistant ABS/PVC (Acrylonitrile-Butadiene-Styrene/Polyvinyl Chloride) composite material. The ageing-resistant ABS/PVC composite material comprises the following raw materials in parts by weight: 100 parts-200 parts of PVC, 75 parst-160 parts of ABS, 3 parts-8 parts of trisalty lead sulfate, 3 parts-5 parts of organic tin, 0.4-0.8 part of calcium stearate, 0.2-0.6 part of barium stearate, 0.5-1.2 part of paraffin, 0.5-1.2 part of nanometer ZnO, 0.5-1.2 part of ultraviolet light absorber UV-9, 0.5-1.2 part of ultraviolet light absorber UV-327 and 0.5-1.2 part of antioxidant 1010. The ABS/PVC blending plastic provided by the invention has good mechanical property and aging-resistance performance.

Description

Anti-aging ABS/PVC matrix material

Technical field

The invention belongs to polymeric material field, be specifically related to a kind of anti-aging ABS/PVC matrix material.

Background technology

Polyvinyl chloride (PVC) is one of maximum resins for universal use of consumption, but it exists shortcomings such as shock-resistance, thermostability and mobile difference, makes it be subjected to very big restriction as hard product.In order to improve the performance of PVC, since the 1950's, people just begin to adopt some superpolymer to carry out blending and modifying with it, and have obtained certain effect.

Acrylonitrile-butadiene-styrene terpolymer (ABS) is a kind of excellent property, broad-spectrum engineering plastics.It has advantages such as shock resistance height, good heat resistance, dimensional stabilizing and depressed forming process.With the blending and modifying of ABS for PVC, the processing characteristics of PVC can not only be improved, and the mechanical property of PVC can also be obviously improved, make the shock strength of ABS/PVC polyblend surpass ABS, PVC.But the loss of properties on aging of ABS, in storage, machine-shaping and use in time prolongation and recurring structure changes, the mechanical property deterioration appears.This mainly be since in the ABS structural changes molecule contained pair of key of divinyl be subjected to the effect of sunlight, heat, oxygen out of doors and easily oxidative degradation; And in the ABS/PVC polyblend, the degraded of ABS also can promote the degraded of PVC, and both interact, and make the ageing-resistant performance of ABS/PVC polyblend become poorer.Therefore, research and development good mechanical performance and the good ABS/PVC polyblend of ageing-resistant performance have important and practical meanings for the use value of giving full play to polyblend, developing plastics new variety.

Summary of the invention

The invention provides the good ABS/PVC polyblend of a kind of good mechanical performance and ageing-resistant performance.

A kind of anti-aging ABS/PVC matrix material, comprise following raw material by weight: 100～200 parts of PVC, 75～160 parts of ABS, 3～8 parts of lead sulfate tribasics, 3～5 parts of organotins, 0.4～0.8 part of calcium stearate, 0.2～0.6 part of barium stearate, 0.5～1.2 part of paraffin, 0.5～1.2 parts of nano-ZnOs, 0.5～1.2 parts of UV light absorber UV-9,0.5～1.2 part of UV light absorber UV-327,0.5～1.2 part of antioxidant 1010.

Above-mentioned anti-aging ABS/PVC matrix material also comprises 2～5 parts of second base lead sulfates.

Above-mentioned anti-aging ABS/PVC matrix material also comprises 0.5～1.2 part of oxidation inhibitor PLTP.

Above-mentioned anti-aging ABS/PVC matrix material, described nano-ZnO particle diameter can be 60nm or 100nm.

The preparation method of above-mentioned anti-aging ABS/PVC matrix material may further comprise the steps:

(1) takes by weighing raw material by weight ratio;

Add to twin screw extruder after each raw material that (2) will take by weighing mixes, complete processing is: 170～190 ℃ of district's temperature, 180～200 ℃ of two district's temperature, 180～200 ℃ of three district's temperature, 180～200 ℃ of four district's temperature, 180～200 ℃ of five district's temperature, 230～350 rev/mins of engine speeds;

(3) extrude back cooling, dry, pelletizing namely gets anti-aging ABS/PVC matrix material.

The invention provides the good ABS/PVC polyblend of a kind of good mechanical performance and ageing-resistant performance.

Embodiment

Anti-aging ABS/PVC matrix material comprises following raw material by weight:

Above-mentioned raw materials mixed in super mixer be placed in the twin screw extruder in 5 minutes, processing conditions is: 180 ℃ of district's temperature, 190 ℃ of two district's temperature, 190 ℃ of three district's temperature, 190 ℃ of four district's temperature, 190 ℃ of five district's temperature, 300 rev/mins of engine speeds, extruding pelletization namely get anti-aging ABS/PVC matrix material.

Anti-aging ABS/PVC the matrix material for preparing is injection molded into batten carries out performance test according to standard method.

Tensile strength is pressed GB/T1040-1992 and is measured.

Shock strength is pressed GB/T1843-1996 and is measured.

Bending property is pressed GB/T9341-2000 and is measured.

The capillary rheology performance adopts universal testing machine to measure, and capillary inner diameter is 1mm, and length-to-diameter ratio is 20, and probe temperature is 200 ℃.

Plasticizing capacity adopts Haake torque rheometer to measure, and probe temperature is 190 ℃, and rotating speed is 45r/min.

Standard test specimen is placed climatic chambers outdoor and 90 ℃ respectively, carry out the experiment of weather aging and thermo-oxidative ageing, sampling at interval, the test mechanical property is with the evaluating material ageing-resistant performance.

By last table result as can be known, though the tensile strength of anti-aging ABS/PVC matrix material and shock strength descend with the prolongation of the time of being exposed to the sun naturally, but its lowering speed obviously slows down, and has delayed the deterioration process of ABS/PVC composite property, has namely improved its ageing-resistant performance.

Claims (5)

1. anti-aging ABS/PVC matrix material, comprise following raw material by weight: 100～200 parts of PVC, 75～160 parts of ABS, 3～8 parts of lead sulfate tribasics, 3～5 parts of organotins, 0.4～0.8 part of calcium stearate, 0.2～0.6 part of barium stearate, 0.5～1.2 part of paraffin, 0.5～1.2 parts of nano-ZnOs, 0.5～1.2 parts of UV light absorber UV-9,0.5～1.2 part of UV light absorber UV-327,0.5～1.2 part of antioxidant 1010.

2. anti-aging ABS according to claim 1/PVC matrix material is characterized in that, also comprises 2～5 parts of second base lead sulfates.

3. anti-aging ABS according to claim 1/PVC matrix material is characterized in that, also comprises 0.5～1.2 part of oxidation inhibitor PLTP.

4. anti-aging ABS according to claim 1/PVC matrix material is characterized in that, described nano-ZnO particle diameter can be 60nm or 100nm.

5. according to the preparation method of described each anti-aging ABS of claim 1-4/PVC matrix material, may further comprise the steps:

(1) takes by weighing raw material by weight ratio;

After mixing, each raw material that (2) will take by weighing adds to twin screw extruder, complete processing is: 170～190 ℃ of district's temperature, 180～200 ℃ of two district's temperature, 180～200 ℃ of three district's temperature, 180～200 ℃ of four district's temperature, 180～200 ℃ of five district's temperature, 230～350 rev/mins of engine speeds;

(3) extrude back cooling, dry, pelletizing namely gets anti-aging ABS/PVC matrix material.