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Preparation method for compound plastic hose

A technology for compounding plastics and hoses, which is applied in the field of plastic hose manufacturing, can solve the problems of insufficient elasticity, small branching degree, and difficult machining, and achieve the effect of improving the usability.

Inactive Publication Date: 2019-01-11
苏州环亚软管塑业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the PVC resin material itself is a kind of polar refractory high polymer, the degree of branching is small, the relative density is low, about 1.4, the glass transition temperature is between 77 ° C and 90 ° C, and it is heated to about 170 ° C When the PVC material begins to decompose
Therefore, the existing PVC plastic pipes have poor high-temperature and low-temperature resistance, insufficient elasticity, and difficult mechanical processing. Corresponding modifications must be made to PVC plastic pipes to improve their performance.

Method used

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  • Preparation method for compound plastic hose

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] (1) Put 80 parts of polyvinyl chloride, 60 parts of n-butyl methacrylate, and 35 parts of toluene diisocyanate into the mixer, heat the internal temperature of the mixer to 75 ° C, and at this temperature, according to 100 rpm Minutes of stirring rate was stirred for 30 minutes to obtain a thermal reaction mixture;

[0022] (2) Pass 6 parts of hydroxyapatite through a 180-mesh sieve to obtain hydroxyapatite powder after pulverization, put the obtained hydroxyapatite powder and 3 parts of calcium carbonate into the ball mill, and then add it to the mixture of the ball mill Add 10 times the weight of deionized water, heat the internal temperature of the ball mill to 60°C, grind at this temperature at a rate of 550 rpm for 25 minutes, and then vacuum-dry the ground material at 80°C after suction filtration To constant weight, the dried product is pulverized and passed through a 250-mesh sieve to obtain a ground dry mixture;

[0023] (3) Put 15 parts of dibenzoyl peroxide,...

Embodiment 2

[0029] (1) Put 85 parts of polyvinyl chloride, 65 parts of n-butyl methacrylate, and 40 parts of toluene diisocyanate into the mixer, and heat the internal temperature of the mixer to 80°C. Minute stirring rate was stirred for 35 minutes to obtain a thermal reaction mixture;

[0030] (2) Pass 8 parts of hydroxyapatite through a 190-mesh sieve to obtain hydroxyapatite powder after pulverization, put the obtained hydroxyapatite powder and 4 parts of calcium carbonate into the ball mill, and then add it to the mixture of the ball mill Add 10 times the weight of deionized water, heat the internal temperature of the ball mill to 65°C, grind at this temperature at a rate of 600 rpm for 30 minutes, and then vacuum-dry the ground material at 80°C after suction filtration To constant weight, the dried product is pulverized and passed through a 250-mesh sieve to obtain a ground dry mixture;

[0031] (3) Put 20 parts of dibenzoyl peroxide, 9 parts of fatty acid methyl ester sulfonate, a...

Embodiment 3

[0037] (1) Put 90 parts of polyvinyl chloride, 70 parts of n-butyl methacrylate, and 45 parts of toluene diisocyanate into the mixer, heat the internal temperature of the mixer to 85°C, and at this temperature follow 120 rpm Minutes of stirring rate was stirred for 40 minutes to obtain a thermal reaction mixture;

[0038] (2) Pass 10 parts of hydroxyapatite through a 200-mesh sieve after pulverization to obtain hydroxyapatite powder, put the obtained hydroxyapatite powder and 5 parts of calcium carbonate into the ball mill, and then add it to the mixture of the ball mill Add 10 times the weight of deionized water, heat the internal temperature of the ball mill to 70°C, grind at this temperature at a rate of 650 rpm for 35 minutes, and then vacuum-dry the ground material at 80°C after suction filtration To constant weight, the dried product is pulverized and passed through a 250-mesh sieve to obtain a ground dry mixture;

[0039] (3) Put 25 parts of dibenzoyl peroxide, 10 part...

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Abstract

The invention discloses a preparation method for a compound plastic hose. The preparation method comprises the following steps: mixing, heating and stirring polyvinyl chloride, n-butyl methacrylate and toluene diisocynate, thereby acquiring a thermal reaction mixture; preparing hydroxyapatite into powder and then wetly milling with calcium carbonate, performing suction filtration, drying and smashing, thereby acquiring a milled dry mixture; ultrasonically treating dibenzoyl peroxide, fatty acid methyl ester sulfonate and beta-hydroxyl alkyl amide, thereby acquiring an ultrasonically treated mixture; acquiring high-temperature stirring reaction materials after the vacuum high-temperature reaction of carbon nano tube, polyacrylonitrile fiber, plasticizer and antioxidant; mixing all the products and then smelting; adopting an extruding machine for melting, blending, extruding and pelletizing the smelted mixture; adopting an injection molding machine for injection-molding dry grains; standing by, thereby acquiring the end product of the compound plastic hose. The prepared compound plastic hose has excellent high temperature resistance and bright application prospect in farmland water-filling irrigation.

Description

technical field [0001] The invention relates to the technical field of plastic hose manufacturing, in particular to a preparation method of a composite plastic hose. Background technique [0002] Plastic pipes have the advantages of light weight, high strength, simple manufacturing methods, low economic cost, convenient processing and use, corrosion resistance, and long life. The main application pipe. Polyvinyl chloride (PVC) plastic pipe is an important polymer material that is widely used in many plastic pipes. PVC plastic pipe has excellent physical and chemical properties such as good flame retardant effect, strong acid and alkali resistance, high structural strength, and good electrical insulation. However, since the PVC resin material itself is a kind of polar refractory high polymer, the degree of branching is small, the relative density is low, about 1.4, the glass transition temperature is between 77 ° C and 90 ° C, and it is heated to about 170 ° C , the PVC ma...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L33/10C08L33/20C08K13/02C08K3/04C08K3/32C08K3/26C08K5/42
CPCC08K2003/265C08K2003/325C08K2201/011C08L27/06C08L2203/18C08L2205/03C08L2205/16C08L33/10C08L33/20C08K13/02C08K3/041C08K3/32C08K3/26C08K5/42
Inventor 张新华
Owner 苏州环亚软管塑业有限公司