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Bellows material and production method thereof

A corrugated pipe and raw material technology, which is applied in the field of corrugated pipe materials and its preparation, can solve the problems of stability, flexibility, high temperature aging resistance, poor low temperature impact resistance, and environmental protection. The conditions are easy to control, excellent flexibility, and process simple effect

Inactive Publication Date: 2017-06-09
ANHUI KEJU NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art, to provide a toughened, halogen-free flame-retardant polycaprolactam corrugated pipe material, to solve the problems of polycaprolactam plastic extrusion molding materials in the prior art, such as stability, flexibility, resistance Poor high-temperature aging and low-temperature impact, not environmentally friendly and other technical problems

Method used

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  • Bellows material and production method thereof
  • Bellows material and production method thereof
  • Bellows material and production method thereof

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preparation example Construction

[0025] Correspondingly, in another aspect, the embodiment of the present invention also provides a method for preparing a bellows material. The method comprises the steps of:

[0026] S01: Weigh the raw materials of each component according to the above bellows material formula;

[0027] S02: Stir and mix the ingredients of the above-mentioned raw materials, and then melt and extrude them to obtain bellows materials.

[0028] The preparation method of the bellows material has simple process, easy control of conditions and high efficiency, and is very suitable for industrial production. The corrugated pipe material made by this method has excellent flexibility, flame retardancy, thermal stability and molding stability.

[0029] Specifically, in the above step S02, the stirring and mixing time is 5-20 minutes; the melt extrusion is carried out in a twin-screw extruder, and the operating parameters of the twin-screw extruder are: the length-to-diameter ratio of the screw is 28-...

Embodiment 1

[0032] A corrugated pipe material, which includes the components in mass percentage as shown in Table 1.

[0033] The preparation method of above-mentioned automobile water tank material is as follows:

[0034] S11: Weigh each component raw material respectively according to the above-mentioned formula of automobile water tank material;

[0035] S12: Pass the ingredients and raw materials in the above step S11 through a parallel co-rotating twin-screw extruder to obtain an automobile water tank material.

[0036]In the above step S12: Stir and mix all the components except the short glass fiber evenly, and then granulate the mixture through a parallel twin-screw extruder with an aspect ratio of 25-40, while the short glass fiber is fed through the side join in. The operating parameters of the parallel co-rotating twin-screw extruder are: the temperature in the first zone is 100-180°C; the temperature in the second, third, and fourth zones is 260-280°C; 240°C; main engine sp...

Embodiment 2

[0038] A corrugated pipe material, which includes the components in mass percentage as shown in Table 1.

[0039] The preparation method of above-mentioned automobile water tank material is as follows:

[0040] S21: Weigh each component raw material respectively according to the formula of the above-mentioned automobile water tank material;

[0041] S22: Pass the ingredients and raw materials in the above step S21 through a parallel co-rotating twin-screw extruder to obtain an automobile water tank material.

[0042] In the above step S22: Stir and mix all components except the short glass fiber evenly, and then granulate the mixture through a parallel twin-screw extruder with an aspect ratio of 25-40, while the short glass fiber is fed through the side join in. The operating parameters of the parallel co-rotating twin-screw extruder are: the temperature in the first zone is 100-180°C; the temperature in the second, third, and fourth zones is 260-280°C; 240°C; main engine s...

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Abstract

The invention belongs to the technical field of macromolecular materials and particularly relates to a bellows material and a production method thereof; the bellows material comprises, by total weight of 100%, 68-81% of polycaprolactam, 10-15% of halogen-free flame retardant, 5-10% of a plasticizer, 0.2-0.4% of a crosslinking agent, 2-5% of a toughener, 0.3-0.6% of a thermostabilizer, and 0.2-2% of other aids. Through modifying effects of the plasticizer, the halogen-free flame retardant, the crosslinking agent, the toughener and the thermostabilizer and the synergy of the components within the specific content range, the bellows material provided herein is given excellent flexibility, flame retardancy and thermostability, as well as excellent forming stability, and has significantly better effects than those of the prior art.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a bellows material and a preparation method thereof. Background technique [0002] Polyamide (PA) is a kind of polymer containing amide groups in the molecular chain. It is the first of the five general-purpose engineering plastics, and its output and consumption rank first. Among them, polycaprolactam (PA6) is used in the largest amount. Because of its good comprehensive performance, it is widely used in the fields of automobile industry, electrical and electronic industry, and machinery industry. [0003] However, at present, most of the common PA6 engineering plastics on the market are of medium and low viscosity, which are difficult to extrude, while the high-viscosity PA6 produced by polymerization can be extruded, but its flexibility and high and low temperature resistance are not good, which greatly limits The scope of use of the material. Automotiv...

Claims

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Application Information

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IPC IPC(8): C08L77/02C08L51/06C08K5/435B29C47/92B29C48/92
CPCC08L77/02B29C48/92B29C2948/9258B29C2948/92704C08L2201/02C08L2201/08C08L2201/22C08L2203/18C08L51/06C08K5/435
Inventor 崔新颍杨海灵徐永
Owner ANHUI KEJU NEW MATERIALS
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