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High-temperature-resistant transparent hard PVC electrical threading pipe and preparation method thereof

A technology of high temperature resistance and threading pipe, which is applied in the field of electrical threading pipe formulation and preparation, which can solve the problems of difficult extrusion of transparent PVC pipes, low Vicat softening temperature, and increased pressure of the machine head, etc., to achieve good transparency and visibility , high Vicat softening temperature, and the effect of reducing the pressure of the machine head

Inactive Publication Date: 2019-12-31
ZHEJIANG TONGZHENG PIPE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For transparent rigid PVC materials, the commonly used heat stabilizer is organotin stabilizer, which usually contains sulfur, such as mercaptan methyl tin heat stabilizer, which will have a large odor during the process of compounding, high temperature extrusion and injection molding , may have a certain impact on the operators
In addition, since the transparent rigid PVC electrical threading system can hardly add inorganic fillers, such as calcium carbonate, its Vicat softening temperature is 4 ~ 5 ℃ lower than that of opaque PVC materials
Not only that, the addition of inorganic fillers such as calcium carbonate will make it more difficult to extrude transparent PVC pipes, and the head pressure will rise sharply. Therefore, a large amount of plasticizer has to be added to improve its fluidity and reduce the head pressure. As a result, the Vicat softening temperature of the pipe will drop by more than ten degrees Celsius, and it will be seriously deformed during stacking and transportation in high temperature weather, affecting normal use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] This is a high-temperature-resistant transparent rigid PVC electrical threading system prepared by a calcium-zinc stabilizer according to the embodiment. It includes two parts: pipes and pipe fittings. The pipe formula includes the following components by weight: 100 parts of PVC, transparent calcium-zinc 3 parts of stabilizer, 4 parts of toughening agent, 1.5 parts of complex ester, 0.1 part of external lubrication, 0.5 part of processing aid, 20 g of toner; the formula of pipe fittings includes the following components by weight: 100 parts of PVC, transparent calcium 3.5 parts of zinc stabilizer, 3 parts of toughening agent, 0.5 part of plasticizer, 0.6 part of external lubrication, 4 parts of processing aid, 20 g of toner.

[0035] The degree of polymerization of the PVC resin used in the pipe formulation is 1000.

[0036] The toughening agent used in the pipe formulation is MBS.

[0037] The external lubrication used in the pipe formulation is compound wax.

[003...

Embodiment 2

[0050] This is a high-temperature-resistant transparent rigid PVC electrical threading system prepared by a calcium-zinc stabilizer according to the embodiment. It includes two parts: pipes and pipe fittings. The pipe formula includes the following components by weight: 100 parts of PVC, transparent calcium-zinc 4 parts of stabilizer, 4.5 parts of toughening agent, 1.8 parts of complex ester, 0.9 part of external lubrication, 1 part of processing aid, 20 g of toner; the formula of pipe fittings includes the following components by weight: 100 parts of PVC, transparent calcium 4 parts of zinc stabilizer, 3 parts of toughening agent, 1 part of plasticizer, 0.6 part of external lubrication, 4.5 parts of processing aid, 20 g of toner.

[0051] The degree of polymerization of the PVC resin used in the pipe formulation is 1000.

[0052] The toughening agent used in the pipe formulation is MBS.

[0053] The external lubricant used in the pipe formulation is G-74.

[0054] The degre...

Embodiment 3

[0066] This is a high-temperature-resistant transparent rigid PVC electrical threading system prepared by a calcium-zinc stabilizer according to the embodiment. It includes two parts: pipes and pipe fittings. The pipe formula includes the following components by weight: 100 parts of PVC, transparent calcium-zinc 4.5 parts of stabilizer, 5 parts of toughening agent, 2.5 parts of complex ester, 0.1 part of external lubrication, 1 part of processing aid, 20 g of toner; the formula of pipe fittings includes the following components by weight: 100 parts of PVC, transparent calcium 5 parts of zinc stabilizer, 3.5 parts of toughening agent, 2 parts of plasticizer, 0.3 part of external lubrication, 5 parts of processing aid, 20 g of toner.

[0067] The degree of polymerization of the PVC resin used in the pipe formulation is 1000.

[0068] The toughening agent used in the pipe formulation is MBS.

[0069] The external lubrication used in the pipe formulation is compound wax.

[0070...

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Abstract

The invention provides a high-temperature-resistant transparent hard PVC electrical threading pipe and a preparation method thereof, and relates to the technical fields of electrical threading pipe formula and preparation. The electrical threading pipe comprises a pipe and pipe fittings; a pipe formula comprises PVC, a transparent calcium-zinc stabilizer, a flexibilizer, composite ester, an internal lubricant, an external lubricant, a processing aid and toner; a pipe fitting formula comprises PVC, a transparent calcium-zinc stabilizer, a flexibilizer, a plasticizer, an external lubricant, a processing aid and toner. The environment-friendly and non-toxic transparent calcium-zinc stabilizer is used as a heat stabilizer for preparing a transparent hard PVC pipe and pipe fittings; the composite ester is adopted to enhance the flowability of the PVC resin, lower the pressure of a machine head and implement favorable processing of the transparent hard PVC, and finally, the high-temperature-resistant transparent hard PVC electrical threading pipe is prepared.

Description

technical field [0001] The invention relates to a formula and preparation of an electrical threading pipe, in particular to a high-temperature-resistant transparent rigid PVC electrical threading pipe and a preparation method thereof. Background technique [0002] PVC electrical threading system has been widely used in recent years for wire protection of home interior decoration and construction engineering hydropower installation due to its advantages of light weight, high mechanical strength, good insulation, convenient installation, sanitation and pollution-free, low price, and long service life. . At present, the pipes and pipe fittings used in commonly used PVC electrical threading systems are opaque PVC materials. If the protective layer of the wires is damaged or the wires are knotted, it is impossible to find out and solve these potential safety hazards in time. Transparent PVC electrical threading system, due to its good transparency and visibility, construction pe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L51/04C08L91/06C08L23/30C08K5/12
CPCC08L27/06C08L2201/08C08L2201/10C08L2203/18C08L51/04C08L91/06C08L23/30C08K5/12
Inventor 陈玲芳韩鹏峰钱功海
Owner ZHEJIANG TONGZHENG PIPE TECH
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