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Formula and preparation method of high-strength and high-toughness polyvinyl chloride pipe material

A polyvinyl chloride, high-strength and high-toughness technology is used in the formulation and preparation of high-strength and high-toughness polyvinyl chloride pipes, which can solve the problems of easy decomposition, poor plasticizing performance, and brittle product strength at low temperature, and achieve high tensile strength. , good compatibility, good flow performance

Inactive Publication Date: 2019-03-08
YIBIN TIANYUAN GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the processing difficulties of PVC in processing, such as poor plasticizing performance, easy decomposition, product strength, low-temperature brittleness, etc., the present invention proposes a high-strength and high-toughness polyvinyl chloride pipe material formula and preparation method to solve these existing problems

Method used

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  • Formula and preparation method of high-strength and high-toughness polyvinyl chloride pipe material
  • Formula and preparation method of high-strength and high-toughness polyvinyl chloride pipe material
  • Formula and preparation method of high-strength and high-toughness polyvinyl chloride pipe material

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Embodiment 1

[0041] The high-strength and high-toughness polyvinyl chloride pipe formula of the present embodiment, the weight ratio of its various components is as follows:

[0042]

[0043] The PVC resin in this embodiment refers to a PVC resin with a degree of polymerization of 2500, and the addition amount is 10 parts.

[0044] The ACR-g-VC resin in this embodiment refers to a resin obtained by polymerizing polyacrylate nanolatex with vinyl chloride monomer. The degree of polymerization is equivalent to that of general-purpose PVC resin SG5, and the addition amount is 90 parts.

[0045] The impact modifier in this embodiment is ACR resin, and the addition amount is 5 parts.

[0046] The heat stabilizer described in this embodiment is selected from one or more compounds of organotin, epoxy compound, and composite heat stabilizers, and the added amount of the stabilizer is 3.5 parts.

[0047] The lubricant of the present embodiment adopts the mixture of internal and external lubrica...

Embodiment 2

[0054] The high-strength and high-toughness polyvinyl chloride pipe formula of the present embodiment, the weight ratio of its various components is as follows:

[0055]

[0056] The PVC resin in this embodiment refers to a PVC resin with a degree of polymerization of 2500, and the addition amount is 20 parts.

[0057] The ACR-g-VC resin in this embodiment refers to a resin obtained by polymerizing polyacrylate nanolatex with vinyl chloride monomer. The degree of polymerization is equivalent to that of general-purpose PVC resin SG5, and the addition amount is 80 parts.

[0058] The impact modifier in this embodiment is ACR resin, and the addition amount is 5 parts.

[0059] The heat stabilizer described in this embodiment is selected from one or more compounds of organotin, epoxy compound, and composite heat stabilizers, and the added amount of the stabilizer is 3.5 parts.

[0060] The lubricant of the present embodiment adopts the mixture of internal and external lubrica...

Embodiment 3

[0067] The high-strength and high-toughness polyvinyl chloride pipe formula of the present embodiment, the weight ratio of its various components is as follows:

[0068]

[0069] The PVC resin in this embodiment refers to a PVC resin with a degree of polymerization of 2500, and the addition amount is 30 parts.

[0070] The ACR-g-VC resin in this embodiment refers to a resin obtained by polymerizing polyacrylate nanolatex with vinyl chloride monomer. The degree of polymerization is equivalent to that of general-purpose PVC resin SG5, and the addition amount is 70 parts.

[0071] The impact modifier in this embodiment is ACR resin, and the addition amount is 5 parts.

[0072] The heat stabilizer described in this embodiment is selected from one or more compounds of organotin, epoxy compound, and composite heat stabilizers, and the added amount is 3.5 parts.

[0073] The lubricant of the present embodiment adopts the mixture of internal and external lubricants, the external ...

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Abstract

The invention discloses a formula and a preparation method of a high-strength and high-toughness polyvinyl chloride pipe material. According to the formula, the high-strength and high-toughness polyvinyl chloride pipe material comprises, by weight, 10-40 parts of PVC (polyvinyl chloride) resin, 60-90 parts of ACR-g-VC (acrylic graft vinyl chloride) resin, 2-10 parts of impact modifier, 2-5 parts of heat stabilizer, 0.5-2 parts of internal lubricant, 0.5-1.2 parts of external lubricant, 1-20 parts of fillers and 0.1-1 part of antioxygen. The preparation method includes: weighing the ingredientsaccording to the formula, placing in a high-speed stirrer, mixing to obtain a polyvinyl chloride mixture, melting, extruding and pelletizing. A pipe material product prepared by the preparation method has the advantages of high plasticizing speed, high processability, great surface color, high impact resistance, high tensile strength, high weather resistance and the like.

Description

technical field [0001] The invention belongs to the field of polyvinyl chloride polymer materials, and in particular relates to a formula and a preparation method of a high-strength and high-toughness polyvinyl chloride pipe. Background technique [0002] Polyvinyl chloride is a material with excellent performance. It has the advantages of chemical corrosion resistance, good electrical insulation, good comprehensive mechanical properties, and low price, so it is widely used, but its disadvantages are difficult processing and narrow temperature range. Processing aids such as stabilizers and lubricants need to be added. Polyvinyl chloride processed products have poor thermal stability and impact resistance, especially poor low-temperature toughness, and are brittle under impact. There are also reports to develop special resins for the production of PVC pipes, which have high impact strength and reduced tensile strength. Strength and tensile strength are trade-offs. Therefore...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L51/00C08L33/04C08L91/06C08K13/02C08K5/098C08K3/26C08K5/524
CPCC08K2003/265C08K2201/011C08L27/06C08L51/003C08L2201/08C08L2203/18C08L2205/035C08L33/04C08L91/06C08K13/02C08K5/098C08K3/26C08K5/524
Inventor 文仕敏佘国华陈华缑可贞田甜
Owner YIBIN TIANYUAN GRP CO LTD
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