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Special polybutylene alloy pipe material for cold/hot water pipe and preparation method of special polybutylene alloy pipe material

A polybutene alloy, cold and hot water pipe technology, applied in the direction of pipes, rigid pipes, mechanical equipment, etc., can solve the problems not involved in the formulation and processing of special materials for pipes, and achieve excellent resistance to environmental stress cracking and thermal creep resistance The effect of improving the resistance and flexural modulus

Active Publication Date: 2015-05-20
QINGDAO UNIV OF SCI & TECH +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The patent mentions that polybutene alloys can be used in the field of water pipes or polypropylene toughening materials, but does not involve the formulation and processing of specific pipe materials

Method used

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  • Special polybutylene alloy pipe material for cold/hot water pipe and preparation method of special polybutylene alloy pipe material
  • Special polybutylene alloy pipe material for cold/hot water pipe and preparation method of special polybutylene alloy pipe material
  • Special polybutylene alloy pipe material for cold/hot water pipe and preparation method of special polybutylene alloy pipe material

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Components and formulations provided by Table 1 (according to weight percent, the following examples are all the same) weigh the material, after mixing in a high-speed mixer for 5 minutes, in a twin-screw extruder with an aspect ratio of 45 and a diameter of 50 Extrusion granulation to obtain the special material for polybutene alloy resin pipes. The mass content of iPB in the polybutene alloy resin used is 66%, and its melt flow rate (190° C., load 2.16 kg) is 0.5 g / 10 min. The temperature of each section of the extruder is: 150°C in zone 1, 165°C in zone 2, 180°C in zone 3, 190°C in zone 4, 210°C in zone 5, 230°C at the head, 20 rpm of extruder, and melt pressure 15MPa.

[0033] The performance test results are shown in Table 2.

Embodiment 2～4

[0043] Components and formulations provided by Table 3 (according to weight percent, the following examples are the same) weigh the material, after mixing in a high-speed mixer for 5 minutes, in a twin-screw extruder with an aspect ratio of 45 and a diameter of 50 Extrusion granulation to obtain the special material for polybutene alloy pipe material. The temperature of each section of the extruder is: 140-160°C for the first zone, 160-170°C for the second zone, 175-185°C for the third zone, 180-200°C for the fourth zone, 190-230°C for the fifth zone, 190-230°C for the head, The speed is 10~30r / min, and the melt pressure is 12~20MPa.

[0044] The performance test results are shown in Table 4.

[0045] From the test results in Table 4, it can be seen that through proper proportioning and optimized processing conditions, special polybutene alloy pipe materials that meet the requirements for the use of pipe materials for cold and hot water pipes can be prepared.

[0046] Compon...

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Abstract

The invention relates to a special polybutylene alloy pipe material for a cold / hot water pipe and a preparation method of the special polybutylene alloy pipe material, belonging to the field of high polymer materials. The special polybutylene alloy pipe material comprises the following components: polybutylene alloy, an antioxidant, a halogen absorber, a light stabilizer, a color masterbatch and a nucleating agent. The preparation method comprises the steps of uniformly mixing the polybutylene alloy, the antioxidant, the halogen absorber, the light stabilizer, the nucleating agent and the color masterbatch by using a high-speed mixer; and extruding and pelleting to obtain the special polybutylene alloy pipe material for the cold / hot water pipe. The tensile strength and bending modulus of the special polybutylene alloy pipe material are greatly improved on the basis that the impact resistance, excellent environment stress crack resistance and thermal creep resistance of polybutylene are kept, and the special polybutylene alloy pipe material can be used as a cold / hot water pipe and pipe fitting material.

Description

technical field [0001] The invention relates to a special polybutene alloy pipe material for hot and cold water pipes, a preparation method and application thereof, and belongs to the field of polymer materials, especially the processing and application of polymer materials. Background technique [0002] Because polypropylene PP is light in weight, high in strength, insoluble in common solvents at room temperature, resistant to chemical corrosion, non-toxic, recyclable, and environmentally friendly, it can be used as a piping material for construction piping and industrial piping. However, polypropylene is a quasi-tough material with high notch sensitivity, poor impact performance at room temperature or low temperature, and low temperature resistance. Especially, the working temperature and working pressure are directly related to its service life, which greatly limits its application in the field of pipes. application. [0003] In the traditional polypropylene modification...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/20C08L23/12C08L53/00C08K13/02C08J3/22B29B9/06B29C47/92F16L9/12B29C48/92
CPCF16L9/12C08J3/226C08L23/20B29B9/06B29C48/92C08J2323/20C08J2423/20C08L2201/08C08L2203/18C08L2205/035C08L2205/025C08L2205/24C08K2201/014C08L2207/02C08L2207/10C08L2207/14C08L2310/00B29C2948/92704B29C2948/9258C08L23/12C08L53/00C08K13/02C08K5/098
Inventor 贺爱华邵华锋刘振学刘晨光柳金章姚刚
Owner QINGDAO UNIV OF SCI & TECH
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