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High temperature deformation-resistant modified polypropylene random (PPR) copolymer tube and preparation method thereof

A polypropylene pipe, random copolymerization technology, used in rigid pipes, pipes, machinery and equipment, etc., can solve the problems of easy deformation of PPR pipes, and achieve the effects of easy processing, cost reduction, and high temperature deformation resistance.

Inactive Publication Date: 2013-07-24
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a high temperature resistant deformation modified PPR pipe and its manufacturing method in order to overcome the defects of the prior art, so as to overcome the defect that the PPR pipe is easily deformed at high temperature

Method used

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  • High temperature deformation-resistant modified polypropylene random (PPR) copolymer tube and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-4

[0034] Table 1 has listed the formula of embodiment 1-4, and by the component listed in table 1 and weight part thereof, with PPR special material, talcum powder, α nucleating agent, antioxidant dry mix 3 minutes in high-speed mixer ;Then melt and extrude the mixed raw materials with a twin-screw extruder, and granulate; finally, extrude the granulated raw materials with a fully automatic integrated pipe, and process it into a pipe. The process is: feeding section 160-180°C, compression section 180-200°C, plasticizing section 180-210°C, homogenizing section 200-220°C, die opening temperature 190-210°C. The feed section is 170-180°C, the compression section is 190-210°C, the plasticizing section is 210-220°C, the homogenization section is 200-220°C, and the die temperature is 190-210°C.

Embodiment 5-8

[0048] The formula of embodiment 5-8 is as shown in table 3.

[0049] According to the components listed in Table 3 and their parts by weight, dry mix the PPR special material, talcum powder, NA-10, and antioxidant in a high-speed mixer for 3 minutes; then melt the mixed raw materials with a twin-screw extruder Extrusion and granulation; finally, the granulated raw materials are extruded with fully automatic integrated pipes and processed into pipes. The process is: feeding section 160-180°C, compression section 180-200°C, plasticizing section 180-210°C, homogenizing section 200-220°C, die opening temperature 190-210°C. The feed section is 170-180°C, the compression section is 190-210°C, the plasticizing section is 210-220°C, the homogenization section is 200-220°C, and the die temperature is 190-210°C.

[0050] The formula of table 3 embodiment 5-8

[0051] Components (parts by weight)

[0052] PPR4220

Embodiment 9-12

[0054] The formulations of Examples 9-12 are shown in Table 4.

[0055]According to the components listed in Table 4 and their parts by weight, dry mix the PPR special material, talcum powder, NA-10, and antioxidant in a high-speed mixer for 3 minutes; then melt the mixed raw materials with a twin-screw extruder Extrusion and granulation; finally, the granulated raw materials are extruded with fully automatic integrated pipes and processed into pipes. The process is: feeding section 160-180°C, compression section 180-200°C, plasticizing section 180-210°C, homogenizing section 200-220°C, die opening temperature 190-210°C. The feed section is 170-180°C, the compression section is 190-210°C, the plasticizing section is 210-220°C, the homogenization section is 200-220°C, and the die temperature is 190-210°C.

[0056] The formula of table 4 embodiment 9-12

[0057] Components (parts by weight)

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Abstract

The invention relates to a high temperature deformation-resistant modified polypropylene random (PPR) copolymer tube and a preparation method thereof. The high temperature deformation-resistant modified PPR copolymer tube comprises, by weight, 60 to 90 parts of a PPR copolymer special-purpose material, 10 to 40 parts of talcum powder, 0.2 to 0.6 parts of an alpha nucleating agent and 0.3 to 0.6 parts of an anti-oxidant. The alpha nucleating agent and the talcum powder improve high temperature deformation resistance of a PPR tube special-purpose material. The talcum powder reduces a PPR tube cost. The preparation method has simple processes and can be realized easily.

Description

technical field [0001] The invention belongs to novel polymer composite materials, and relates to a modified random copolymerized polypropylene pipe and a preparation method thereof. Background technique [0002] PPR pipe is also called three-type polypropylene pipe or random copolymer polypropylene pipe, which is made of special materials for random copolymer polypropylene pipe through extrusion. In addition to the advantages of general plastic pipes such as light weight, good strength, corrosion resistance and long service life, PPR pipes also have other advantages: smooth inner wall; small flow resistance and no scaling; simple and convenient installation and operation; It is welded together in a few seconds; waste products generated in the production and construction of PPR pipes can be recycled; it can reduce production costs; it does not pollute the environment. [0003] PPR pipes have low rigidity and are easily deformed at high temperatures. Therefore, they are pron...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/14C08K13/02C08K3/34C08K5/523B29C47/92F16L9/12B29C48/92
CPCB29C48/04
Inventor 王贺宜
Owner HEFEI GENIUS NEW MATERIALS
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