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High-strength high-toughness polyvinyl chloride manhole cover and preparation method thereof

A polyvinyl chloride, high-strength and high-toughness technology, applied in the formulation and preparation of high-strength and high-toughness polyvinyl chloride manhole covers, can solve the problems of high cost, poor plasticizing performance, and low strength of aluminum manhole covers, and achieve lubricating effect and Good thermal stability, lower production costs, and improved thermal stability

Inactive Publication Date: 2019-03-26
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 disadvantages of using concrete as a manhole cover, the cost is high, the cost is high and the elasticity is poor, and the manhole cover made of ordinary PVC has poor plasticizing performance, easy to decompose, low strength, and brittle at low temperature during processing, the present invention proposes a high-strength High toughness polyvinyl chloride manhole cover formula and preparation method to solve these existing problems

Method used

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  • High-strength high-toughness polyvinyl chloride manhole cover and preparation method thereof
  • High-strength high-toughness polyvinyl chloride manhole cover and preparation method thereof
  • High-strength high-toughness polyvinyl chloride manhole cover and preparation method thereof

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Effect test

Embodiment 1

[0054] The high-strength and high-toughness polyvinyl chloride manhole cover 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 10 parts.

[0057] The ACR-g-VC resin in this embodiment refers to a resin formed by polymerizing polyacrylate nanolatex with vinyl chloride monomer, the degree of polymerization is equivalent to that of general PVC resin SG5, and the addition amount is 90 parts.

[0058] The modifying agent of this embodiment is MBS resin, and the addition amount is 5 parts.

[0059] The composite stabilizer of the present embodiment selects calcium-zinc composite stabilizer, and the addition amount is 5 parts.

[0060] The light stabilizer of this embodiment is titanium dioxide, and the addition amount is 0.5 parts.

[0061] The lubricant in this embodiment adopts a mixture of inte...

Embodiment 2

[0067] The high-strength and high-toughness polyvinyl chloride manhole cover 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 20 parts.

[0070] The ACR-g-VC resin in this embodiment refers to a resin formed 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.

[0071] The modifying agent of this embodiment is MBS resin, and the addition amount is 5 parts.

[0072] The composite stabilizer of the present embodiment selects calcium-zinc composite stabilizer, and the addition amount is 5 parts.

[0073] The light stabilizer of this embodiment is titanium dioxide, and the addition amount is 0.5 parts.

[0074] The lubricant in this embodiment is a mixture of ...

Embodiment 3

[0080] The high-strength and high-toughness polyvinyl chloride manhole cover formula of the present embodiment, the weight ratio of its various components is as follows:

[0081]

[0082] 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.

[0083] The ACR-g-VC resin in this embodiment refers to a resin formed 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.

[0084] The modifying agent of this embodiment is MBS resin, and the addition amount is 5 parts.

[0085] The composite stabilizer of the present embodiment selects calcium-zinc composite stabilizer, and the addition amount is 5 parts.

[0086] The light stabilizer in this embodiment is titanium dioxide, and the addition amount is 0.6 parts.

[0087] The lubricant in this embodiment adopts a mixture...

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Abstract

The invention discloses a high-strength high-toughness polyvinyl chloride manhole cover and a preparation method thereof. The manhole cover is prepared from the following components in parts by weight:5-40 parts of PVC resin, 60-95 parts of ACR-g-VC resin, 2-8 parts of modifier, 2-5 parts of compound stabilizer, 0.5-2 parts of an internal lubricating agent, 0.5-1.2 parts of an external lubricatingagent, 0.1-1 part of optical stabilizer, 0.1-1 part of antioxidant and 1-80 parts of filler. The preparation method comprises the following steps: mixing the materials to obtain a polyvinyl chloridemixture; granulating in a twin-screw extruder, extruding and dicing with an extruder; and adding particles into an injection molding machine, performing injection molding to form the manhole cover. The manhole cover has the advantages of strong impact resistance, high tensile strength, good weather resistance, low temperature 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 manhole cover. Background technique [0002] Polyvinyl chloride is one of the five general-purpose resins. It is cheap and widely used. However, because of its poor thermal stability and impact resistance, especially poor low-temperature toughness, it is brittle under impact and its application fields are limited. There are also reports on the development of special resins. Used in the production of PVC manhole covers, it has high impact strength, but low tensile strength and poor weather resistance. Therefore, users generally do not want to use PVC manhole covers. [0003] Chinese patent CN102863728A production method of high-impact PVC composite resin HI7 tray, the PVC composite resin HI7 tray of this invention is mainly composed of the following components...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L91/06C08L51/00C08L51/04C08L23/30C08K13/04C08K7/26C08K3/22
CPCC08K2003/2241C08K2201/011C08L27/06C08L2201/08C08L2205/02C08L2205/035C08L91/06C08L51/003C08L51/04C08L23/30C08K13/04C08K7/26C08K3/22
Inventor 文仕敏佘国华缑可贞田甜
Owner YIBIN TIANYUAN GRP CO LTD
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