Waterproof packaging material and preparing method thereof

A technology for packaging materials and raw materials, applied in the field of waterproof packaging materials and their preparation, can solve the problems of low tensile strength and low compressive strength, and achieve the effects of simple raw materials, easy availability of raw materials, and simple preparation methods.

Inactive Publication Date: 2016-09-28
SUZHOU DINGLI PACKAGING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The invention provides a waterproof packaging material with high compressive strength, high tensile strength, high elongation and high tear strength and a preparation method thereof, which solves the technical problems of low compressive strength and low tensile strength of existing packaging materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Step 1: Weigh 100 parts of PVC, 10 parts of DOP, 0.5 part of lead stearate, 15 parts of powdered nitrile rubber, 4 parts of EBSO, 40 parts of magnesium silicate, 25 parts of TDI, 0.5 part of sulfur, and oxidize 1 part of zinc, 2 parts of tribasic lead sulfate.

[0025] Step 2: Put PVC into a high-speed mixer, heat up to 80°C, add the remaining raw materials, heat up to 120°C, mix at a speed of 800r / min, and mix for 10 minutes.

[0026] Step 3: Two-roller kneading, front roll 155°C, 18r / min, rear roll 140°C, 24r / min, time 6min, pull sheet and cut into pellets, extrude sheet, calender and form, then cool and curl.

[0027] Product notched impact strength 4kJ / m 3 , tensile strength 40MPa, Brinell hardness 20; 80 ℃ thermal aging 2 months tensile strength loss 0.25%, natural 12 months tensile strength loss 0.02%; product flammable self-extinguishing, tear strength 36kN / m , the raw materials are simple and easy to obtain, the preparation method is simple, and the elongation...

Embodiment 2

[0029] Step 1: Weigh 100 parts of PVC, 50 parts of DOP, 2.5 parts of lead stearate, 35 parts of powdered nitrile rubber, 8 parts of EBSO, 60 parts of magnesium silicate, 45 parts of TDI, 2.5 parts of sulfur, and oxidize 5 parts of zinc, 6 parts of tribasic lead sulfate.

[0030] Step 2: Put PVC into a high-speed mixer, heat up to 100°C, add the remaining raw materials, heat up to 140°C, mix at a speed of 1000r / min, and mix for 30 minutes.

[0031] Step 3: Two-roller kneading, front roll 175°C, 20r / min, rear roll 160°C, 28r / min, time 10min, pull sheet and cut into pellets, extrude sheet, calender and form, then cool and curl.

[0032] Product notched impact strength 4.5kJ / m 3 , tensile strength 45MPa, Brinell hardness 21; 80 ℃ heat aging 2 months tensile strength loss 0.2%, natural 12 months tensile strength loss 0.005%; product flammable self-extinguishing, tear strength 37kN / m , the raw materials are simple and easy to obtain, the preparation method is simple, and the elong...

Embodiment 3

[0034] Step 1: Weigh 100 parts of PVC, 20 parts of DOP, 1 part of lead stearate, 20 parts of powdered nitrile rubber, 5 parts of EBSO, 45 parts of magnesium silicate, 30 parts of TDI, 1 part of sulfur, and oxidize 2 parts of zinc, 3 parts of tribasic lead sulfate.

[0035] Step 2: Put PVC into a high-speed mixer, heat up to 80°C, add the remaining raw materials, heat up to 120°C, mix at a speed of 800r / min, and mix for 10 minutes.

[0036] The third step: two-roller kneading, front roll 155°C, 18r / min, rear roll 140°C, 24-28r / min, time 6min, pull the sheet and cut it into pellets, extrude the sheet, cool and curl after calendering .

[0037] Product notched impact strength 5kJ / m 3, tensile strength 50MPa, Brinell hardness 22; 80 ℃ heat aging 2 months tensile strength loss 0.15%, natural 12 months tensile strength loss 0.01%; product flammability self-extinguishing, tear strength 38kN / m , the raw materials are simple and easy to obtain, the preparation method is simple, and ...

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Abstract

The invention discloses a waterproof packaging material and a preparing method thereof. The waterproof packaging material is prepared from PVC, plasticizer, lead stearate, butadiene-acrylonitrile rubber powder, EBSO, magnesium silicate, TDI, sulfur, zinc oxide and tribasic lead sulfate. The notch impact strength of the packaging material is 4-6 Kj/m<3>, the tensile strength is 40-60 MPa, and Brinell hardness is 20-24; tensile strength is lost by 0.05-0.25% after the packaging material is thermally aged for 2 months at the temperature of 80 DEG C, and tensile strength is lost by 0.001-0.02% after the packaging material is naturally aged for 2 months; according to combustibility, the packaging material is self-extinguished when away from a fire, and the tear strength is 36-40 kN/m. The raw materials are simple and easy to obtain, the preparing method is simple, and the elongation is 40-180%.

Description

technical field [0001] The invention relates to the technical field of packaging materials, in particular to a waterproof packaging material and a preparation method thereof. Background technique [0002] Packaging materials refer to the materials used to make packaging containers, packaging decoration, packaging printing, packaging and transportation to meet product packaging requirements, including metal, plastic, glass, ceramics, paper, bamboo, wild mushrooms, natural fibers, Main packaging materials such as chemical fibers and composite materials, as well as auxiliary materials such as strapping, decoration, and printing materials. [0003] Refers to the materials used to make packaging containers, packaging decoration, packaging printing, packaging and transportation to meet product packaging requirements, including metal, plastic, glass, ceramics, paper, bamboo, wild mushrooms, natural fibers, chemical fibers , composite materials and other main packaging materials, i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L9/02C08K13/02C08K3/34C08K3/06C08K3/22C08K3/30C08K5/098
CPCC08L27/06C08L2201/02C08L9/02C08K13/02C08K3/34C08K3/06C08K2003/2296C08K2003/3045C08K5/098
Inventor 顾建芳
Owner SUZHOU DINGLI PACKAGING
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