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Chlorinated polyethylene waterproof packaging material and preparation method thereof

A technology of chlorinated polyethylene and packaging materials, which is applied to building insulation materials, building components, buildings, etc., can solve the problems of low hardness and low tensile strength, and achieve the effect of simple preparation method, simple raw materials and easy availability of raw materials

Inactive Publication Date: 2016-10-12
SUZHOU DINGLI PACKAGING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The invention provides a chlorinated polyethylene waterproof packaging material with high hardness, high tensile strength, high elongation and high tear strength and a preparation method thereof, which solves the technical problems of low hardness and low tensile strength of existing packaging materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Step 1: Weigh 100 parts of CPE, 10 parts of DBP, 40 parts of coal tar pitch, 1.5 parts of basic lead carbonate, 5 parts of chlorinated paraffin, 20 parts of carbon black, and 25 parts of dimethylformamide according to the ratio of parts by mass , 25 parts of magnesium silicate, 15 parts of 4,4'-diphenylmethane diisocyanate, and 10 parts of antimony trioxide.

[0026] Step 2: Put the CPE into the high-speed mixer, raise the temperature to 100°C, add the remaining raw materials, raise the temperature to 120°C, mix at a speed of 800r / min, and mix for 10min.

[0027] Step 3: Carry out mastication on the rubber mixer, the mastication temperature is 140°C, and then roll it into a waterproof packaging material with a thickness of 0.5mm on a calender at 70°C, and then cool and curl it.

[0028] Product notched impact strength 4kJ / m 3 , tensile strength 10MPa, Shore hardness 40; elongation 800%, excellent water and chemical resistance, 80 ℃, 10-day heat aging after elongation r...

Embodiment 2

[0030] Step 1: Weigh 100 parts of CPE, 50 parts of DBP, 80 parts of coal tar pitch, 5.5 parts of basic lead carbonate, 25 parts of chlorinated paraffin, 40 parts of carbon black, and 45 parts of dimethylformamide according to the ratio of parts by mass , 45 parts of magnesium silicate, 35 parts of 4,4'-diphenylmethane diisocyanate, and 30 parts of antimony trioxide.

[0031] Step 2: Put the CPE into a high-speed mixer, raise the temperature to 120°C, add the remaining raw materials, raise the temperature to 140°C, mix at a speed of 1000r / min, and mix for 30 minutes.

[0032] Step 3: Carry out masticating on the rubber mixer, the masticating temperature is 180°C, and then calender on a calender at 90°C to form a waterproof packaging material with a thickness of 0.9mm, then cool and curl it.

[0033] Product notched impact strength 4.5kJ / m 3 , tensile strength 15MPa, Shore hardness 45; elongation 900%, excellent water and chemical resistance, 80 ℃, 10 days after heat aging, elo...

Embodiment 3

[0035] Step 1: Weigh 100 parts of CPE, 20 parts of DOP, 50 parts of coal tar pitch, 2.5 parts of basic lead carbonate, 10 parts of chlorinated paraffin, 25 parts of carbon black, and 30 parts of dimethylformamide according to the ratio of parts by mass , 30 parts of magnesium silicate, 20 parts of 4,4`-diphenylmethane diisocyanate, and 15 parts of antimony trioxide.

[0036] Step 2: Put the CPE into the high-speed mixer, raise the temperature to 100°C, add the remaining raw materials, raise the temperature to 120°C, mix at a speed of 800r / min, and mix for 10min.

[0037] Step 3: Carry out mastication on the rubber mixer, the mastication temperature is 140°C, and then roll it into a waterproof packaging material with a thickness of 0.5mm on a calender at 70°C, and then cool and curl it.

[0038] Product notched impact strength 4-6kJ / m 3 , tensile strength 10-30MPa, Shore hardness 40-60; elongation 800-1200%, excellent water and chemical resistance, 80 ℃, 10-day heat aging after ...

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Abstract

The invention discloses a chlorinated polyethylene waterproof packaging material and a preparation method thereof. Raw materials of the waterproof packaging material comprise CPE, a plasticizer, coal tar pitch, basic lead carbonate, chlorinated paraffin, carbon black, dimethyl formamide, magnesium silicate, 4,4'-diphenylmethane diisocyanate and antimony trioxide. The notch impact strength of the above product is 4-6kJ / m<3>, the tensile strength is 10-30MPa, and the Shore hardness is 40-60; the elongation rate is 800-1200%, the water and chemical resistance is excellent, and the retention rate of the elongation rate of the product undergoing thermal ageing at 80DEG C for 10d is 70-90%; the combustion property of the product is characterized by self-extinguishing after being deviated from fire, the tear strength is 40-44kN / m, raw materials are simple and easily available, the preparation method is simple, and the water absorption rate is 0.1-0.3%.

Description

technical field [0001] The invention relates to the technical field of packaging materials, in particular to a chlorinated polyethylene 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 ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/28C08L95/00C08L91/06C08K13/02C08K3/26C08K3/04C08K5/20C08K3/34C08K3/22
CPCC08L23/286C08L2201/02C08L2205/03C08L95/00C08L91/06C08K13/02C08K3/26C08K3/04C08K5/20C08K3/34C08K3/2279
Inventor 顾建芳
Owner SUZHOU DINGLI PACKAGING
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