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Preparation method of PVC package material

A technology for packaging materials and pigments, applied in the field of preparation of PVC packaging materials, can solve the problems of low tensile strength and low hardness, and achieve the effects of low cost, simple preparation method and saving manpower and material resources.

Inactive Publication Date: 2017-09-15
苏州奥宇包装科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The invention provides a preparation method of a PVC packaging material with heat aging resistance, high tensile strength, high impact strength and high hardness, and solves the technical problems of low hardness and low tensile strength in the preparation method of the existing waterproof packaging material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Step 1: Weigh 100 parts of PVC, 0.1 part of vinyl chloride, 10 parts of POM, 2 parts of titanium dioxide, 1 part of tribasic lead sulfate, 2 parts of dibasic lead phosphite, and 4 parts of lubricating oil according to the ratio of parts by mass. 1 part of zinc oxide, 2 parts of sorbitol monopalmitate, 1 part of PDOP, 2 parts of POP, 10 parts of dibutyltin mercaptide, 0.5 parts of dioctyl phenyl phosphate, 0.3 parts of silver-based antibacterial masterbatch, phthalocyanine blue 0.002 parts.

[0025] Step 2: Put PVC into a high-speed kneader, raise the temperature to 95°C, add the remaining raw materials, raise the temperature to 110°C, knead at a speed of 800r / min, and knead for 15min.

[0026] Step 3: The kneaded material is masticated on two rolls, the temperature of the front roll is 170°C, the speed is 16r / min, the rear roll is 160°C, the speed is 26r / min, and kneading is 15min, and the temperature is 180°C. The pressure is 25MPa, the time is 10min, and after calend...

Embodiment 2

[0029] Step 1: Weigh 100 parts of PVC, 0.3 parts of vinyl chloride, 50 parts of POM, 6 parts of titanium dioxide, 3 parts of tribasic lead sulfate, 4 parts of dibasic lead phosphite, and 8 parts of lubricating oil according to the ratio of parts by mass. 5 parts of zinc oxide, 6 parts of sorbitol monopalmitate, 5 parts of PDOP, 8 parts of POP, 30 parts of dibutyltin mercaptide, 2.5 parts of dioctyl phenyl phosphate, 0.5 parts of silver-based antibacterial masterbatch, phthalocyanine blue 0.006 copies.

[0030] Step 2: Put PVC into a high-speed kneader, raise the temperature to 105°C, add the remaining raw materials, raise the temperature to 120°C, knead at a speed of 1000r / min, and knead for 25min.

[0031] Step 3: The kneaded material is masticated on two rolls, the temperature of the front roll is 190°C, the speed is 20 r / min, the rear roll is 170°C, the speed is 28 r / min, and the kneading is 25min. ℃, pressure 35MPa, time 30min, cooling and curling after calendering to obt...

Embodiment 3

[0034] Step 1: Weigh 100 parts of PVC, 0.2 parts of vinyl chloride, 30 parts of POM, 4 parts of titanium dioxide, 2 parts of tribasic lead sulfate, 3 parts of dibasic lead phosphite, and 6 parts of lubricating oil according to the ratio of parts by mass. 3 parts of zinc oxide, 4 parts of sorbitol monopalmitate, 3 parts of PDOP, 5 parts of POP, 20 parts of dibutyltin mercaptide, 1.5 parts of dioctyl phenyl phosphate, 0.4 parts of silver-based antibacterial masterbatch, phthalocyanine blue 0.004 copies.

[0035] Step 2: Put PVC into a high-speed kneader, heat up to 100°C, add the remaining raw materials, heat up to 115°C, knead at a speed of 900r / min, and knead for 20min.

[0036] Step 3: The kneaded material is masticated on two rolls, the temperature of the front roll is 180°C, the speed is 18r / min, the rear roll is 165°C, the speed is 27r / min, kneading is 20min, and the temperature is 200°C. The pressure is 30MPa, the time is 20min, and after calendering, it is cooled and cu...

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Abstract

The invention discloses a preparation method of a PVC package material. The PVC package material includes the following raw materials: PVC, vinyl chloride, POM, titanium dioxide, tribasic lead sulfate, dibasic lead phosphite, lubricant oil, zinc oxide, sorbitan monopalmitate, PDOP, POP, dibutyltin mercaptide, dioctyl phenylphosphonate, silver-series antibacterial master batches, and a pigment. The PVC package material has the following technical indices: longitudinal draw strength is 9-11 MPa, transversal draw strength is 8-10 MPa, longitudinal elongation is 88-92%, transversal elongation is 75-85%, fusion time is 105-125 s, breakdown voltage is 11.4-13.8 kV / mm, tear strength is 108-112 MPa, notch impact strength is 5.3-6.7 kJ / m<2>, bending strength is 30-35 MPa, Brinell hardness is 22-24, and gelation rate is 75-85% after irradiation under gamma ray being 40 kGy.

Description

technical field [0001] The invention relates to the technical field of packaging materials, in particular to a preparation method of PVC packaging materials. Background technique [0002] Polyvinyl chloride, referred to as PVC in English, is a polymer polymerized by peroxides, azo compounds and other initiators; or under the action of light and heat according to the mechanism of free radical polymerization. Vinyl chloride homopolymer and vinyl chloride copolymer are collectively referred to as vinyl chloride resin; PVC is a white powder with an amorphous structure, a small degree of branching, a relative density of about 1.4, a glass transition temperature of 77~90°C, and begins to decompose at about 170°C , poor stability to light and heat, above 100 ℃ or after long-term sunlight exposure, it will decompose to produce hydrogen chloride, and further autocatalytic decomposition, causing discoloration, physical and mechanical properties also decline rapidly, must be added in p...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L59/00C08K13/02C08K3/30C08K3/32C08K3/22C08K5/523
CPCC08L27/06C08K2003/2241C08K2003/3045C08L2201/02C08L2201/08C08L2205/035C08L59/00C08K13/02C08K3/30C08K3/32C08K3/22C08K5/523
Inventor 顾建芳
Owner 苏州奥宇包装科技有限公司
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