CN102382392B - PVC plastic pipe and its preparation method - Google Patents

Abstract

The invention discloses a PVC plastic pipe and its preparation method. The preparation method mainly comprises the step of respectively mixing, heating and molding raw materials of a polyvinyl chloride resin, a polyvinyl chloride recovered material, a low-lead compound stabilizer, a reactive polyamide resin, calcium carbonate, an acrylic impact modifier ACR, titanium dioxide, stearic acid, polyethylene wax, an ultraviolet absorber and a pigment according to a certain weight portions to obtain a finished product. The preparation method provided by the invention is simple with reasonable formulation. The prepared PVC plastic pipe has good heat dissipation performance, corrosion resistance, high temperature resistance and tensile property, and can be effectively applied in all walks of life.

Description

A kind of PVC plastic pipe and preparation method thereof

Technical field

The present invention relates to a kind of tubing, be specifically related to a kind of PVC plastic pipe and preparation method thereof.

Background technology

Plastic pipe is the chemical building material that high-tech is composited, and chemical building material is after steel, timber, cement, the fourth-largest class New Building Materials that the present age is emerging.In recent years, chemical building material has been obtained the rapid progress fast development in China, and especially being widely used of novel environment friendly plastics tubing started the revolution of an alternative traditional construction material.Plastic pipe is the advantages such as the current loss is little, energy-conservation, material-saving, protection is ecological, completion is convenient because having, and are widely used at present the fields such as building water supply and drainage, cities and towns plumbing and gas line, become the main force of new millennium urban construction pipe network.

Plastics are different with traditional material, technical progress paces faster, the new technology, novel material, the novel process that constantly occur make the advantage of the relative traditional material of plastics tubing more and more outstanding.Plastic pipe is compared with cement pipe with traditional metal tube, have lightweight, general is the 1/6-1/10 of metal tube only, preferably erosion resistance is arranged, shock resistance and tensile strength, the plastics tubing internal surface than cast iron pipe smooth many, frictional coefficient is little, fluid resistance is little, can reduce the water delivery energy consumption more than 5%, synthesis energy saving is good, makes the right reduction by 75% of energy consumption, convenient transportation, install simply, reach 30-50 work-ing life.Polyethylene tube is very fast in the countries in the world development over nearly 10 years, and developed country has accounted for absolute advantage in feedwater field and gas burning field using polythene pipe.Polyethylene tube not only is used for replacing traditional steel pipe, cast iron pipe etc. in a large number, is also replacing polyvinyl chloride pipe, and reason just is polyethylene tube technological innovation over nearly 10 years.Material has great progress on the one hand, and by the improvement of polyethylene polymerization production technique, the intensity of Polyethylene Pipe Resin has almost improved 1 times.Utilisation technology has new development on the other hand, for example need not excavate pipe trench in recent years, the technology that adopts the directional drilling method to lay polyethylene tube has been given full play to the superiority of polyethylene tube, makes traditional piping material be fit to adopt the occasion of this method not have competitive capacity at all.

Summary of the invention

For a kind of plastic pipe of more high-quality is provided, the object of the invention is to provide a kind of PVC plastic pipe and preparation method thereof, and preparation method of the present invention is simple, and the PVC plastic pipe of preparation has excellent heat dispersion performance, tensile property is good.

The present invention adopts following technical scheme to achieve these goals:

The PVC plastic pipe is characterized in that the weight part of its constitutive material is: polyvinyl chloride (PVC) RESINS 30-40kg, polyvinyl chloride reclaimed materials 60-70kg, low plumbous one package stabilizer 3.5-4.0kg, reactive polyamide resin 8-12kg, calcium carbonate 40-60kg, acrylic ester impact-resisting modifier ACR2-3kg, titanium dioxide 3-5kg, stearic acid 0.4-0.6kg, polyethylene wax 0.3-0.5kg, UV light absorber 0.1-0.15kg, pigment 10-20g.

The preparation method of described PVC plastic pipe is characterized in that may further comprise the steps:

(1) weight part by constitutive material takes by weighing each raw material, the polyvinyl chloride (PVC) RESINS that in the mixed pot of heat, adds certain part by weight, heated 2-3 minute, then the low plumbous one package stabilizer, acrylic ester impact-resisting modifier ACR, titanium dioxide, stearic acid, UV light absorber and the pigment that add successively certain part by weight reacted 5-7 minute;

(2) add by weight polyvinyl chloride reclaimed materials, reactive polyamide resin, calcium carbonate and polyethylene wax in step (1), reacted 10-15 minute, blowing is cooled to 35-40 ℃ to cold mixed pot;

(3) the cooled batch mixing of step (2) is put into barrel, the inlet temperature of control barrel is 183-187 ℃, and the middle-end temperature is 172-178 ℃, and the exit end temperature is 168-172 ℃;

(4) will expect successively by merging core and die head moulding in the barrel in the step (3), the temperature of merging core is controlled at 168-172 ℃, and the temperature of die head is 192-198 ℃, obtains at last finished product.

Advantage of the present invention:

Preparation method of the present invention is simple, and prescription is reasonable, and the PVC plastic pipe of preparation has excellent heat dispersion performance, corrosion-resistant, high temperature resistant and tensile property is good, can effectively be applied in all trades and professions.

Embodiment

Embodiment 1:PVC plastic pipe, the weight part of its constitutive material is: polyvinyl chloride (PVC) RESINS 30kg, polyvinyl chloride reclaimed materials 60kg, low plumbous one package stabilizer 3.5kg, reactive polyamide resin 8kg, calcium carbonate 40kg, acrylic ester impact-resisting modifier ACR2kg, titanium dioxide 3kg, stearic acid 0.4kg, polyethylene wax 0.3-0.5kg, UV light absorber 0.1kg, pigment 10g.

The preparation method of PVC plastic pipe may further comprise the steps:

(1) weight part by constitutive material takes by weighing each raw material, the polyvinyl chloride (PVC) RESINS that in the mixed pot of heat, adds certain part by weight, heated 2-3 minute, then the low plumbous one package stabilizer, acrylic ester impact-resisting modifier ACR, titanium dioxide, stearic acid, UV light absorber and the pigment that add successively certain part by weight reacted 5-7 minute;

(2) add by weight polyvinyl chloride reclaimed materials, reactive polyamide resin, calcium carbonate and polyethylene wax in step (1), reacted 10-15 minute, blowing is cooled to 35-40 ℃ to cold mixed pot;

(3) the cooled batch mixing of step (2) is put into barrel, the inlet temperature of control barrel is 185 ℃, and the middle-end temperature is 175 ℃, and the exit end temperature is 170 ℃;

(4) will expect successively by merging core and die head moulding in the barrel in the step (3), the temperature of merging core is controlled at 170 ℃, and the temperature of die head is 195 ℃, obtains at last finished product.

Embodiment 2:PVC plastic pipe, the weight part of its constitutive material is: polyvinyl chloride (PVC) RESINS 40kg, polyvinyl chloride reclaimed materials 70kg, low plumbous one package stabilizer 4.0kg, reactive polyamide resin 12kg, calcium carbonate 60kg, acrylic ester impact-resisting modifier ACR3kg, titanium dioxide 5kg, stearic acid 0.6kg, polyethylene wax 0.5kg, UV light absorber 0.15kg, pigment 20g.

The preparation method of PVC plastic pipe may further comprise the steps:

(1) weight part by constitutive material takes by weighing each raw material, the polyvinyl chloride (PVC) RESINS that in the mixed pot of heat, adds certain part by weight, heated 2-3 minute, then the low plumbous one package stabilizer, acrylic ester impact-resisting modifier ACR, titanium dioxide, stearic acid, UV light absorber and the pigment that add successively certain part by weight reacted 5-7 minute;

(2) add by weight polyvinyl chloride reclaimed materials, reactive polyamide resin, calcium carbonate and polyethylene wax in step (1), reacted 10-15 minute, blowing is cooled to 35-40 ℃ to cold mixed pot;

(3) the cooled batch mixing of step (2) is put into barrel, the inlet temperature of control barrel is 185 ℃, and the middle-end temperature is 175 ℃, and the exit end temperature is 170 ℃;

(4) will expect successively by merging core and die head moulding in the barrel in the step (3), the temperature of merging core is controlled at 170 ℃, and the temperature of die head is 195 ℃, obtains at last finished product.

Embodiment 3: the performance data of PVC plastic pipe of the present invention compares:

Claims (1)

1. a PVC plastic pipe is characterized in that the weight part of its constitutive material is: polyvinyl chloride (PVC) RESINS 30-40kg, polyvinyl chloride reclaimed materials 60-70kg, low plumbous one package stabilizer 3.5-4.0kg, reactive polyamide resin 8-12kg, calcium carbonate 40-60kg, acrylic ester impact-resisting modifier ACR2-3kg, titanium dioxide 3-5kg, stearic acid 0.4-0.6kg, polyethylene wax 0.3-0.5kg, UV light absorber 0.1-0.15kg, pigment 10-20g; The preparation method of described PVC plastic pipe may further comprise the steps:

(1) weight part by constitutive material takes by weighing each raw material, the polyvinyl chloride (PVC) RESINS that in the mixed pot of heat, adds certain part by weight, heated 2-3 minute, then the low plumbous one package stabilizer, acrylic ester impact-resisting modifier ACR, titanium dioxide, stearic acid, UV light absorber and the pigment that add successively certain part by weight reacted 5-7 minute;

(2) add by weight polyvinyl chloride reclaimed materials, reactive polyamide resin, calcium carbonate and polyethylene wax in step (1), reacted 10-15 minute, blowing is cooled to 35-40 ℃ to cold mixed pot;

(3) the cooled batch mixing of step (2) is put into barrel, the inlet temperature of control barrel is 183-187 ℃, and the middle-end temperature is 172-178 ℃, and the exit end temperature is 168-172 ℃;

(4) will expect successively by merging core and die head moulding in the barrel in the step (3), the temperature of merging core is controlled at 168-172 ℃, and the temperature of die head is 192-198 ℃, obtains at last finished product.