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A kind of preparation method of anti-ultraviolet pvc drainage pipe

A drainage pipe, anti-ultraviolet technology, applied in the direction of pipes, rigid pipes, mechanical equipment, etc., can solve the problems of high price and pollute the environment, and achieve the effects of low price, simple preparation method, and easy popularization and application.

Active Publication Date: 2015-09-23
安徽安诺热能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the anti-ultraviolet agents used in plastic products are mainly organic substances, such as salicylates, diphenyls, triazines, and organic complex compounds. These organic anti-ultraviolet agents have the disadvantages of being expensive and polluting the environment.

Method used

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  • A kind of preparation method of anti-ultraviolet pvc drainage pipe
  • A kind of preparation method of anti-ultraviolet pvc drainage pipe

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Experimental program
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Embodiment Construction

[0014] According to the components in parts by weight in Table 1, first heat the polyvinyl chloride resin in a hot mixing pot for 2 to 3 minutes, then add other components in turn, react for 5 to 7 minutes, and then cool to 35 to 40°C; The cooled mixture is put into the barrel, and the inlet temperature of the barrel is controlled to be 180-190°C, the temperature of the middle end is 170-180°C, and the temperature of the outlet end is 160-170°C; through the confluence core and the mold head in turn, the confluence The temperature of the core is controlled at 160-170°C, the temperature of the die head is 190-200°C, and the pipe is extruded.

[0015] Table 1 Components and parts by weight

[0016]

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Abstract

The invention discloses a preparation method of an anti-ultraviolet PVC (polyvinyl chloride) drain pipe. The PVC drain pipe is prepared by using the following raw materials in parts by weight: 100 parts of PVC resin, 20-30 parts of light calcium carbonate, 3-10 parts of composite lead salt stabilizer, 0.5-4 parts of lubricant, 1-5 parts of plasticizer, 2-5 parts of impact modifier ACR (acrylic resin) and 2-5 parts of ultraviolet absorber. The preparation method provided by the invention has the advantages that the formula is reasonable, the prepared PVC drain pipe has good mechanical performance and is compliant with GB / T5836.1-2006, the anti-ultraviolet effect is excellent and the anti-aging period is long.

Description

technical field [0001] The invention belongs to the technical field of polyvinyl chloride composite materials, and in particular relates to a preparation method of an ultraviolet-resistant PVC drainage pipe. Background technique [0002] Since PVC resin itself has shortcomings such as thermal stability, high and low temperature resistance, and poor fluidity, various additives are added to improve its performance. Commonly used additives can be divided into heat stabilizers, lubricants, processing modifiers, impact modifiers, fillers, anti-aging agents, colorants, etc. according to their functions. Most PVC products are exposed to sunlight and other kinds of light. According to the application environment of the product, a certain amount of light stabilizer needs to be added to prevent and delay its decomposition and aging, and prolong the service life of PVC products. Light stabilizers can be roughly divided into four categories: light shielding agents, ultraviolet absorber...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/06C08K13/02C08K3/26C08K5/12C08K3/22B29C47/92F16L9/12B29C48/92
CPCB29C47/92B29C2947/92895B29C2947/92904B29C47/8815B29C47/827B29C2947/92704B29C48/911B29C48/09B29C48/875B29C48/92B29C2948/92704B29C2948/92895B29C2948/92904
Inventor 张显宝
Owner 安徽安诺热能科技有限公司