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PVC tubular material formula high in impact resistance, and preparation method thereof

A PVC pipe and high-impact technology, which is applied in the formulation and preparation of high-impact PVC pipes, can solve the problems of poor toughness and easy occurrence of brittle fracture, and achieve improved hardness, strong permeability, toughness and impact resistance. Effect

Active Publication Date: 2018-06-29
马鞍山顾地塑胶有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the technical defects of poor toughness and brittle fracture of traditional PVC pipes in the prior art, the present invention provides a high-impact PVC pipe formula and its preparation method, wherein MBS resin and ACR resin can be used in the form of dispersed phase The so-called "sea-island" structure is formed with the continuous phase of polyvinyl chloride. With a small amount of MBS and ACR, the polyvinyl chloride material has high impact strength and the toughening effect is ideal.

Method used

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  • PVC tubular material formula high in impact resistance, and preparation method thereof
  • PVC tubular material formula high in impact resistance, and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0038] The high-impact PVC pipe formulation of this embodiment includes the following raw materials by weight: PVC: 100; MBS resin: 6; ACR resin: 3; calcium zinc stabilizer: 5; calcium carbonate: 8; stearic acid: 0.3 ; Polyethylene wax: 0.2; Titanium dioxide: 1.5.

[0039] The preparation method of the high-impact PVC pipe of the present embodiment, the steps are:

[0040] Step 1. Weigh each component according to the formula measurement requirements, add it to a high-speed mixer and stir and mix it. The temperature of the material is raised to 100-120°C through friction, stop stirring, and then cool to 30-35°C and discharge it for later use;

[0041] Step 2. Extrude and cut the material obtained in Step 1 on the pipe forming equipment. The temperature of the barrel of the extruder is controlled at 150-190°C, and the temperature of the die is controlled at 155-195°C.

[0042] According to GB / T 13664-2006, various indicators are tested, and the performance indicators of the pr...

Embodiment 2

[0046] The high-impact PVC pipe formulation of the present embodiment includes the following raw materials by weight: SG-5 type PVC: 110; MBS resin is a core-shell structure obtained by copolymerization of methyl methacrylate, butadiene and styrene Terpolymer: 8; ACR resin is also a core-shell structure acrylate copolymer: 4; calcium zinc stabilizer: 7; calcium carbonate: 8; stearic acid: 0.4; polyethylene wax: 0.4; Ethylene wax is combined into a composite lubricant; titanium dioxide: 3, mainly used as a colorant.

[0047] The preparation method of the high-impact PVC pipe of the present embodiment, the steps are:

[0048] Step 1. Weigh each component according to the formula measurement requirements, add it to a high-speed mixer and stir and mix it. The temperature of the material is raised to 100-120°C through friction, stop stirring, and then cool to 30-35°C and discharge it for later use;

[0049] Step 2. Extrude and cut the material obtained in Step 1 on the pipe formin...

Embodiment 3

[0054] The high-impact PVC pipe material formula of the present embodiment comprises the raw material composition of following parts by weight: SG-5 type PVC: 110; MBS resin is the polymethyl methacrylate of shell structure: 8; ACR resin is also the shell structure Polymethyl methacrylate: 4; rare earth stabilizer: 7; calcium carbonate: 8; stearic acid: 0.4; polyethylene wax: 0.4; stearic acid, polyethylene wax combined into a composite lubricant; titanium dioxide: 3 , mainly used as a coloring agent.

[0055] The steps of the preparation method of the high-impact PVC pipe in this embodiment are the same as those in Embodiment 2.

[0056] After testing, the performance indicators of the prepared PVC pipe and the traditional formula are compared, as shown in Table 3 below:

[0057] Compare items

[0058] It can be seen from the above table that because PMMA has strong polarity, high glass transition temperature, and good compatibility with polyvinyl chloride resin, t...

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Abstract

The invention discloses a PVC tubular material formula high in impact resistance, and a preparation method thereof, and belongs to the technical field of high molecular material moulding processing. The PVC tubular material formula high in impact resistance is composed of, by weight, 100 to 110 parts of PVC, 6 to 8 parts of MBS resin, 3 to 4 parts of ACR resin, 5 to 7 parts of a stabilizing agent,8 to 20 parts of calcium carbonate, 0.3 to 0.4 part of stearic acid, 0.2 to 0.4 part of polyethylene wax, and 1.5 to 3 parts of titanium dioxide. According to the preparation method, a composite flexibilizer is prepared from MBS resin and ACR resin to modify PVC; a sea-island structure is formed by a dispersion phase the MBS resin and the ACR resin, and a continuous phase polyvinyl chloride, a small amount of MBS and ACR is capable of providing polyvinyl chloride material with relatively high impact strength, the toughening effect is ideal, and technical defect problems of conventional PVC tubular material that the toughness is poor, and rupture is easily caused are solved.

Description

technical field [0001] The invention relates to the field of molding and processing of polymer materials, in particular to a high-impact PVC pipe formulation and a preparation method thereof. Background technique [0002] Polyvinyl chloride (PVC) is a high-molecular compound polymerized from vinyl chloride monomer. It is one of the general-purpose plastic varieties with large output; it has excellent corrosion resistance because of its chemical stability, acid resistance and alkali resistance. It has been widely used in industry, agriculture, municipal engineering, building water supply and drainage and other fields. [0003] The structural unit of polyvinyl chloride contains side group chlorine atoms, so the molecular chain is relatively rigid, the toughness of polyvinyl chloride is low, and the impact resistance is poor, which makes polyvinyl chloride pipes prone to brittle fracture during storage, transportation, installation and use. In order to improve the toughness of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L51/04C08L33/04C08L23/06C08L33/12C08K13/02C08K3/26C08K3/22C08K5/09
CPCC08K2003/2241C08K2003/265C08L27/06C08L2203/18C08L2205/035C08L2207/53C08L51/04C08L33/04C08L23/06C08L33/12C08K13/02C08K3/26C08K3/22C08K5/09
Inventor 董大洋
Owner 马鞍山顾地塑胶有限公司
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