Method for preparing stretchable bending-resistant PVC hose

A bending-resistant and flexible hose technology, applied in the field of PVC material preparation, can solve the problems of poor stretchability of PVC hose, easy whitening of break points, poor dispersion of PVC, etc., to improve low-temperature flexibility and phase Capacitance, the effect of improving stretch elasticity

Inactive Publication Date: 2019-01-22
FOSHAN CHANCHENG DISTRICT NUOGAO ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem mainly solved by the present invention is that a large amount of filler needs to be added when the toughness of the current PVC hose is improved by plasticizer, the dispersion of polyvinyl chloride in the PVC ho

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0024] Example 1

[0025] Take the basalt and put it into a grinder and pulverize it for 3 hours to obtain basalt abrasive. Place the basalt abrasive in a corundum crucible with a leaking nozzle, the diameter of which is 8 mm, and move the corundum crucible into a resistance furnace. Power on and heat up to 1350°C, heat and melt for 20 minutes to obtain molten basalt material, open the leaking nozzle, and use a traction rod to draw the molten basalt material to obtain basalt fibers with a diameter of 6 mm; take 200 mL of ethyl orthosilicate and 300 mL of anhydrous ethanol and mix them. Put it into a beaker, add 60 mL of hydrochloric acid with a mass fraction of 10% to the beaker, and stir it with a magnetic stirrer at a speed of 400 r / min for 1 h to obtain a silica sol, and add 20 mL of a mass fraction of 5% to the silica sol. The polyvinyl alcohol was aged at room temperature for 20 hours to obtain a silica sol precursor. The basalt fiber was immersed in the silica precursor ...

Example Embodiment

[0026] Example 2

[0027] Take the basalt and put it into a grinder for 3.5 hours to get basalt abrasive, put the basalt abrasive in a corundum crucible with a leaking nozzle, the diameter of the leaking nozzle is 9mm, move the corundum crucible into a resistance furnace, and heat up the basalt at a heating rate of 22°C / min. , energize and heat up to 1370 ° C, heat and melt for 22 minutes to obtain basalt molten material, open the leak nozzle, and use a traction rod to pull the drawing basalt molten material to obtain basalt fibers with a diameter of 7 mm; take 210 mL of ethyl orthosilicate and 320 mL of anhydrous ethanol mixed Put it into a beaker, add 70 mL of hydrochloric acid with a mass fraction of 10% to the beaker, and stir it with a magnetic stirrer at a speed of 420 r / min for 1.5 h to obtain a silica sol. Add 25 mL of the mass fraction to the silica sol. 5% polyvinyl alcohol, aged for 22h at room temperature to obtain a silica sol precursor, immersed the basalt fiber ...

Example Embodiment

[0028] Example 3

[0029] Take the basalt and put it in a grinder and pulverize it for 4 hours to obtain basalt abrasive. Place the basalt abrasive in a corundum crucible with a leaking nozzle, the diameter of which is 10 mm, and move the corundum crucible into a resistance furnace. Power on and heat up to 1400°C, heat and melt for 25 minutes to obtain molten basalt material, open the leaking nozzle, and draw the molten basalt material with a traction rod to obtain a basalt fiber with a diameter of 8 mm; take 220 mL of ethyl orthosilicate and 350 mL of anhydrous ethanol and mix it with Put it into a beaker, add 80 mL of hydrochloric acid with a mass fraction of 10% to the beaker, and stir it with a magnetic stirrer at a speed of 450 r / min for 2 hours to obtain a silica sol, and add 30 mL of a mass fraction of 5% to the silica sol. The polyvinyl alcohol was aged at room temperature for 24h to obtain a silica sol precursor. The basalt fiber was immersed in the silica precursor t...

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Abstract

The invention discloses a method for preparing a stretchable bending-resistant PVC hose, which belongs to the technical field of preparation of a PVC material. The main raw material of the PVC hose ofthe invention is polyvinyl chloride, and the polyvinyl chloride is mechanically modified by EPDM raw rubber, and the ethylene content of the used EPDM raw rubber is 50-55%, the EPDM can effectively improve the low temperature tensile properties and low temperature flexibility of polyvinyl chloride, and can effectively solve the problem of large changes in the low temperature tensile properties ofthe finished products caused by the use of a plasticizer, the EPDM easily absorbs the accumulated and modified zeolite powder surface, oriented and orderly arranged crystallization can be differentlygenerated, hydrogen chloride due to heat and photodegradation can be rapidly absorbed, so that the continuous decomposition of polyvinyl chloride can be blocked, the aging resistance performance of polyvinyl chloride is increased and is stable, and the method has wide application prospect.

Description

technical field [0001] The invention discloses a preparation method of a stretchable and bending-resistant PVC hose, which belongs to the technical field of PVC material preparation. Background technique [0002] PVC, the five general-purpose plastics used next to PE, is a cheap resin, but has good physical and chemical properties. After adding plasticizers, stabilizers and various performance additives to the formula, it can be made It is made into a bright PVC hose, which is widely used in agricultural irrigation, household cleaning, industrial transportation of fluid media and pneumatic tools. The main component of PVC is polyvinyl chloride, and other ingredients are added to enhance its heat resistance, toughness, and ductility. The top layer of this surface film is lacquer, the main component in the middle is polyvinyl chloride, and the bottom layer is back-coated adhesive. [0003] Polyvinyl chloride (PVC) is light yellow translucent and shiny. Transparency is bette...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L23/16C08L91/00C08K13/06C08K9/04C08K7/26C08K3/22C08K5/098C08K9/02C08K7/10C08K3/36C08J3/28
CPCC08J3/28C08J2327/06C08J2423/16C08J2491/00C08K2003/2227C08K2003/2296C08L27/06C08L2201/08C08L2203/18C08L2205/03C08L23/16C08L91/00C08K13/06C08K9/04C08K7/26C08K3/22C08K5/098C08K9/02C08K7/10C08K3/36
Inventor 胡次兵章红英王素香
Owner FOSHAN CHANCHENG DISTRICT NUOGAO ENVIRONMENTAL PROTECTION TECH CO LTD
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