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Soft oil-resistant flame-retardant polyvinyl chloride material and preparation method thereof

A flame-retardant polyvinyl chloride and oil-resistant technology, used in plastic/resin/wax insulators, organic insulators, electrical components, etc., can solve the problem of electrical materials and building materials with poor flame retardant properties and can not meet the use of cables with high bundle burning , The cable material cannot meet the flame retardant standard and other problems, and achieve the effect of excellent mechanical properties, good mechanical properties, and small mechanical properties

Pending Publication Date: 2020-12-29
SHANGHAI KAIBO SPECIAL CABLE FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The oil-resistant PVC materials on the existing market can only pass the requirements of IRM902# oil resistance at 70℃×4h or 90℃×24h, and cannot meet the higher requirements put forward by customers, such as 90℃×168h oil-resistant occasions
[0003] In addition, through the study of many fire accidents, the results show that: except for natural disasters, most of the fires are caused by the poor flame retardancy of electrical materials and building materials.
Although PVC material itself contains chlorine and has certain flame retardant properties, it still cannot meet the high flame retardant standards as a cable material.
The oxygen index of existing oil-resistant polyvinyl chloride materials can only reach 28-30, which cannot meet the needs of cables with high bundled combustion
Adding flame retardant can improve the oxygen index of the material, but at the same time it will affect its oil resistance and mechanical properties

Method used

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  • Soft oil-resistant flame-retardant polyvinyl chloride material and preparation method thereof
  • Soft oil-resistant flame-retardant polyvinyl chloride material and preparation method thereof
  • Soft oil-resistant flame-retardant polyvinyl chloride material and preparation method thereof

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preparation example Construction

[0056] The embodiment of the invention also discloses a method for preparing a soft, oil-resistant and flame-retardant polyvinyl chloride material, which specifically includes the following steps:

[0057] 1) According to the above-mentioned soft oil-resistant flame-retardant polyvinyl chloride material, take each raw material for subsequent use;

[0058] 2) Add PVC resin, plasticizer A, plasticizer B, plasticizer C, flame retardant A, flame retardant B, flame retardant C and heat stabilizer to a high-speed kneader for stirring and mixing, set The jacket temperature of the mixer is 95°C-105°C, and the mixing time is 5-10 minutes; then add rubber A, rubber B, modifier, processing aid and antioxidant to the high-speed kneader, and mix for 30-90 seconds to obtain a uniform the mixture;

[0059] 3) Put the mixture into a two-stage extrusion granulator composed of twin-screw and single-screw. The heating temperature of each section of the twin-screw granulator is uniformly increas...

Embodiment 1～6

[0061] Embodiments 1 to 6 of the present invention disclose a method for preparing a soft, oil-resistant and flame-retardant polyvinyl chloride material, which specifically includes the following steps, wherein the composition and proportioning ratio of the raw materials are shown in Table 1, and various technical parameters are shown in Table 2 below:

[0062] 1) taking each raw material for subsequent use;

[0063] Among them, PVC resin was purchased from Ningbo Formosa Plastics Company; rubber was purchased from France Ilio Company; plasticizer was purchased from Jiangsu Senhe Company; flame retardant A was purchased from Muli Antimony Industry Company; flame retardant C was purchased from American Yabao Company ; Calcium-zinc composite heat stabilizer was purchased from German Bear Company.

[0064] 2) Add PVC resin, plasticizer A, plasticizer B, plasticizer C, flame retardant A, flame retardant B, flame retardant C and heat stabilizer to a high-speed kneader for stirring ...

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Abstract

The invention provides a soft oil-resistant flame-retardant polyvinyl chloride material and a preparation method thereof. The material is prepared from the following components in parts by weight: 100parts of PVC resin, 10-30 parts of rubber A, 5-15 parts of rubber B, 10-30 parts of a plasticizer A, 4-10 parts of a plasticizer B, 5-12 parts of a plasticizer C, 10-20 parts of a flame retardant A,6-15 parts of a flame retardant B, 15-30 parts of a flame retardant C, 10-30 parts of a filler, 8-15 parts of a heat stabilizer, 8-20 parts of a modifier, 1.0-2.5 parts of a processing aid and 0.8-1.5parts of an antioxidant. The polyvinyl chloride material obtained in the invention considers the balance of softness, oil resistance and flame retardance, can meet the requirements that the oxygen index reaches 36 or above, the shore hardness is 78 + / - 3 A, and IRM902# oil resistance is achieved at 90 DEG C for 168 h, and can be used for cables with the requirements for softness, high oil resistance and high flame retardance.

Description

technical field [0001] The invention relates to the technical field of wire and cable materials, in particular to a soft, oil-resistant and flame-retardant polyvinyl chloride material and a preparation method thereof. Background technique [0002] At present, polyvinyl chloride is widely used in various wires in the wire and cable industry because of its excellent performance, high production efficiency, and low price. The oil-resistant polyvinyl chloride materials currently on the market can only pass the requirements of IRM902# oil resistance at 70°C×4h or 90°C×24h, and cannot meet the higher requirements of customers, such as 90°C×168h oil resistance. [0003] In addition, through the study of many fire accidents, the results show that: except for natural disasters, most of the fires are caused by the poor flame retardancy of electrical materials and building materials. Although PVC material itself contains chlorine elements and has certain flame retardant properties, it...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L15/00C08L23/34C08K5/12C08K5/11C08K3/22C08K3/38C08K9/06C08K9/04C08K13/06H01B3/44
CPCC08L27/06H01B3/443C08K2003/387C08K2003/2224C08L2201/02C08L2203/202C08L2205/035C08L2201/08C08L2205/025
Inventor 胡玲崔德刚魏国宝
Owner SHANGHAI KAIBO SPECIAL CABLE FACTORY
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