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Formula and preparation method of high fluidity polyvinyl chloride alloy

A polyvinyl chloride and high fluidity technology is applied in the formulation and preparation field of polyvinyl chloride alloys, which can solve problems such as difficulty in meeting practical applications and use restrictions, and achieve the effects of low production cost, satisfying use requirements, and improving application scope.

Inactive Publication Date: 2011-12-21
国家复合改性聚合物材料工程技术研究中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the best effect of toughening and modifying PVC is to use acrylonitrile-styrene-butadiene copolymer (ABS) with low modulus, that is, high butadiene content. The impact resistance of the blend varies with The increase of ABS content gradually increases to obtain high-strength and high-toughness polyvinyl chloride alloy materials, but this polyvinyl chloride blend alloy material cannot be used for injection molding, which is difficult to meet practical applications, and injection molding is the most common plastic processing One of the means, so the current polyvinyl chloride alloy is limited in use due to fluidity problems

Method used

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  • Formula and preparation method of high fluidity polyvinyl chloride alloy
  • Formula and preparation method of high fluidity polyvinyl chloride alloy
  • Formula and preparation method of high fluidity polyvinyl chloride alloy

Examples

Experimental program
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Effect test

Embodiment 1

[0038] Example 1 of the present invention: A method for preparing a high-fluidity polyvinyl chloride alloy. 100 parts of polyvinyl chloride with a degree of polymerization of 700, 6 parts of organotin, 0.5 parts of stearic acid, 0.5 parts of PE wax, and 3 parts of citric acid Tributyl ester (equal parts by weight of trioctyl citrate, acetyl tributyl citrate or acetyl trioctyl citrate and other citric acid esters can also be used instead) to be blended by a high mixer at a speed of 1430r / min, discharging at 110°C to obtain a polyvinyl chloride material; 85 parts of the polyvinyl chloride material, 15 parts of ABS and 40 parts of TPU are added to the conical twin-screw extruder for melt extrusion, and the die The temperatures of zone three, die mouth zone two, mould mouth zone one, host zone three, host zone two and host zone one are 185℃, 180℃, 175℃, 170℃, 165℃ and 145℃ respectively; the host speed is 12rpm, The feeding speed is 7 rpm; the extruded material is cut into pellets,...

Embodiment 2

[0039] Example 2 of the present invention: a method for preparing a high-fluidity polyvinyl chloride alloy, 100 parts of polyvinyl chloride with a degree of polymerization of 800, 6 parts of calcium and zinc stabilizers, 0.5 parts of oxidized polyethylene wax, 0.5 parts of PE wax, and 3 parts A portion of 1,2-cyclohexane-diisopropyl dicarboxylate imported from Germany is blended by a high-mixer at a speed of 1430r / min and discharged at 110°C to obtain a polyvinyl chloride material; 80 parts of vinyl chloride material, 20 parts of MBS and 5 parts of TPU are added to the conical twin-screw extruder for melt extrusion. The die has three zones, two zones, one zone, three zones, and two zones. And the temperature in the first zone of the main engine are respectively 185℃, 180℃, 175℃, 170℃, 165℃, 145℃; the rotation speed of the main engine is 12rpm, and the feeding speed is 7rpm; then the extruded material is cut into pellets, and finally the finished polychloride is obtained. Vinyl ...

Embodiment 3

[0040] Example 3 of the present invention: the preparation method of high-fluidity polyvinyl chloride alloy, 100 parts of polyvinyl chloride with a degree of polymerization of 1000, 3 parts of organotin, 3 parts of rare earth stabilizers, 0.5 parts of stearic acid, and 0.5 parts of PE wax Parts and 3 parts of DOP are blended through a high-mixer at a speed of 1430r / min and discharged at 110°C to obtain a polyvinyl chloride material; 85 parts of this polyvinyl chloride material is mixed with 15 parts of ABS and 20 parts of TPU Join the conical twin-screw extruder for melt extrusion. The temperatures of the die mouth three zone, die mouth two zone, die mouth one zone, main machine three zone, main machine two zone and main machine one zone are respectively 185℃, 180℃, 175 ℃, 170℃, 165℃, 145℃; the main engine speed is 12rpm, and the feeding speed is 7rpm; then the extruded material is cut into pellets, and finally the finished PVC alloy is obtained. The polyvinyl chloride alloy ha...

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Abstract

The invention discloses a formula of high-liquidity polyvinyl chloride alloy and a preparation method. The formula comprises the following components in part by weight: 80-100 parts of polyvinyl chloride base, 5-20 parts of toughening agent, 1-20 parts of inorganic filler and 5-40 parts of TPU (thermoplastic polyurethane). In the invention, the liquidity of the polyvinyl chloride alloy is improved by adding the TPU so as to obtain the polyvinyl chloride alloy with proper injection molding, the mechanical property of the polyvinyl chloride alloy is excellent, the service requirement can be met, and the application range of the polyvinyl chloride alloy is expanded. The invention is simple and is easy to implement, the production efficiency is high, the cost is low and the application effectis ideal.

Description

Technical field [0001] The invention relates to a formula and a preparation method of a plastic alloy, in particular to a formula and a preparation method of a polyvinyl chloride alloy. Background technique [0002] Plastic alloy is a new class of high-performance, functional and specialized materials obtained by physical blending or chemical grafting. Plastic alloy products can be widely used in automobiles, electronics, precision instruments, office equipment, packaging materials, building materials and other fields. It can improve or enhance the performance of existing plastics and reduce costs. It has become one of the most active varieties in the plastics industry and has grown rapidly. Polyvinyl chloride (PVC) resin has the advantages of excellent chemical stability, electrical insulation, flame retardancy, abrasion resistance, low price, and a wide range of raw materials. Its output is second only to polyethylene (PE) and ranks in the world's resin output The second plac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L55/02C08L51/04C08L51/00C08L75/04C08K13/02
Inventor 秦舒浩于杰张敏敏郭建兵秦军都佩华
Owner 国家复合改性聚合物材料工程技术研究中心
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