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Polyvinyl chloride tubular product and preparation method thereof

A polyvinyl chloride and pipe technology, which is applied in the field of polyvinyl chloride pipes and their preparation, can solve the problems of poor tensile properties, poor impact resistance, brittle failure, etc., and achieves good paraffin resistance and impact resistance. , the effect of inhibiting product discoloration

Inactive Publication Date: 2016-03-09
ANHUI RUIFENG PIPE IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a polyvinyl chloride pipe and its preparation method, to solve the above-mentioned problems such as poor tensile properties and poor impact resistance of polyvinyl chloride pipes caused in the prior art, and brittle failure easily. item defect

Method used

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  • Polyvinyl chloride tubular product and preparation method thereof

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Effect test

Embodiment 1

[0025] A polyvinyl chloride pipe, consisting of the following components by weight: PVC: 75 parts, light calcium carbonate: 25 parts, heat stabilizer: 3 parts, lubricant: 1 part, CPE: 5 parts, ACR: 2 Parts, molybdenum chrome red: 0.8 parts.

[0026] In this embodiment, the content of chlorine in the PVC is 60%.

[0027] In this embodiment, the heat stabilizer is a calcium-zinc composite stabilizer.

[0028] In this embodiment, the lubricant is calcium stearate.

[0029] A preparation method of polyvinyl chloride pipe, comprising the following steps:

[0030] (1) Weighing raw materials: accurately weigh each component raw material in proportion;

[0031] (2) Thermal mixing: the raw materials in step (1) are mixed by a high-speed mixer, the discharge temperature of the high-speed mixer is controlled at 105° C., and the mixing time of the high-speed mixer is 6 minutes to obtain a compound;

[0032] (3) Cold mixing: the mixture in step (2) is mixed again by a low-speed mixer, ...

Embodiment 2

[0041] A polyvinyl chloride pipe, consisting of the following components by weight: PVC: 75 parts, light calcium carbonate: 25 parts, heat stabilizer: 4 parts, lubricant: 2 parts, CPE: 6.5 parts, ACR: 3.5 Parts, molybdenum chrome red: 1.15 parts.

[0042] In this embodiment, the content of chlorine in the PVC is 67.5%.

[0043] In this embodiment, the thermal stabilizer is an organotin stabilizer.

[0044] In this embodiment, the lubricant is barium stearate.

[0045] A preparation method of polyvinyl chloride pipe, comprising the following steps:

[0046] (1) Weighing raw materials: accurately weigh each component raw material in proportion;

[0047](2) Thermal mixing: the raw materials in step (1) are mixed by a high-speed mixer, the discharge temperature of the high-speed mixer is controlled at 110° C., and the mixing time of the high-speed mixer is 9 minutes to obtain a mixture;

[0048] (3) cold mixing: the mixture in the step (2) is mixed with a low-speed mixer, and ...

Embodiment 3

[0057] A polyvinyl chloride pipe consisting of the following components by weight: PVC: 75 parts, light calcium carbonate: 25 parts, heat stabilizer: 5 parts, lubricant: 3 parts, CPE: 8 parts, ACR: 5 parts part, 1.5 parts of molybdenum chrome red.

[0058] In this embodiment, the content of chlorine in the PVC is 75%.

[0059] In this embodiment, the thermal stabilizer is an organotin stabilizer.

[0060] In this embodiment, the lubricant is calcium stearate.

[0061] A preparation method of polyvinyl chloride pipe, comprising the following steps:

[0062] (1) Weighing raw materials: accurately weigh each component raw material in proportion;

[0063] (2) Thermal mixing: the raw materials in step (1) are mixed by a high-speed mixer, the discharge temperature of the high-speed mixer is controlled at 115° C., and the mixing time of the high-speed mixer is 12 minutes to obtain a compound;

[0064] (3) Cold mixing: the mixture in step (2) is mixed with a low-speed mixer

[00...

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Abstract

The invention discloses a polyvinyl chloride tubular product and a preparation method thereof and relates to the field of plastic tubular products. The polyvinyl chloride tubular product is prepared from, by weight, 75 parts of PVC, 25 parts of light calcium carbonate, 3-5 parts of a heat stabilizer, 1-3 parts of a lubricant, 5-8 parts of CPE, 2-5 parts of ACR and 0.8-1.5 parts of molybdate red, and the preparation method comprises the seven process steps of raw material weighing, hot mixing, cooling mixing, extrusion, vacuum cooling, cutting and flaring for forming and packaging. The preparation method is simple, the production efficiency is high, the preparation process is simple, low in cost and high in preparation efficiency, the prepared polyvinyl chloride tubular product is good in tensile property and impact resistance, and brittle failure does not easily occur.

Description

technical field [0001] The invention relates to the field of plastic pipes, in particular to a polyvinyl chloride pipe and a preparation method thereof. Background technique [0002] Polyvinyl chloride pipes, also known as PVC pipes, are pipes made of thermoplastic polymers polymerized from vinyl chloride monomers. The preparation of polyvinyl chloride pipes in the prior art usually uses polyvinyl chloride resin as the main raw material, adding Appropriate amount of anti-aging agent, modifier, etc., through mixing, calendering, vacuum blister and other processes. PVC pipe has strong corrosion resistance and is easy to bond. PVC has strong resistance to oxidizing agents, reducing agents and strong acids. Therefore, it is widely used in many special fields. [0003] The wire and cable protection tube is installed on the surface of the power line or communication cable to prevent short-circuit accidents caused by disconnection of the power line, so as to protect the cable and ...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L23/28C08L33/04C08K13/02C08K3/26C08K5/098B29C47/92B29C47/88B29B7/74B29C48/09B29C48/92
CPCB29C48/92B29C48/916B29B7/74C08L27/06B29C2948/92895B29C2948/92904B29C2948/9259B29C2948/92704C08L2205/03C08L2203/18C08L23/286C08L33/04C08K13/02C08K2003/265C08K5/098B29C48/09B29C48/913
Inventor 范建军孙林华王飞王春波
Owner ANHUI RUIFENG PIPE IND CO LTD
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