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Waterproof corrosion-resistant antiaging high-flexibility rich mineral paper and preparation method thereof

A stone paper, anti-aging technology, applied in the field of stone paper preparation, can solve the problems of high construction technology requirements, short waterproof and anti-corrosion period, poor adhesion, etc., to reduce oxidative degradation, efficient and fast construction, inhibit discoloration and The effect of UV light degradation

Inactive Publication Date: 2015-12-16
KUNMING IRON & STEEL HLDG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the following deficiencies still generally exist in the existing stone paper production: high production cost, single function, especially short waterproof and anticorrosion cycle, poor effect, poor adhesion, and water leakage and leakage when used as building roofing materials. Oil phenomenon occurs, and the requirements for construction technology are high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0022] The preparation method of the stone paper of the present invention includes the steps of activation, refining, granulation, drying, extrusion, calendering, shaping and trimming. ~120°C kneader for 5~15 minutes to activate the material, and then 100~240°C internal mixer for 5~10 minutes, and the evenly mixed material group is pressed into the unit through a double wrist / double cone feeder Screw / twin-screw extruder, extrude and shape at 130~190°C, cut into pellets after cooling, introduce the obtained masterbatch into the dryer, dry it to moisture content <0.3%, and send it to the extruder at 190~230°C for extrusion out, and then rolled by a calender at 40~70°C, cooled to room temperature and shaped, then trimmed to obtain the finished stone paper.

[0023] The internal mixer is a pressurized vertical internal mixer.

[0024] The rotor speed of the internal mixer is 20-40r / min; the rotor speed of the feeder is 5-20r / min; the screw speed of the extruder is 20-50r / min.

...

Embodiment 1

[0030] Stone paper raw material composition:

[0031] 15 parts of polyethylene powder with moisture content of 0.8%; 4 parts of EVA / EAA copolymer powder; 57 parts of heavy calcium powder with particle size of 800~1000 mesh and moisture content of 0.3%; 10 parts of carbon black powder of 800~1000 mesh; sodium benzoate 2 parts; 0.1 part of anti-aging agent: (including antioxidant 1010: 0.02 part, ultraviolet absorber UV234: 0.03 part, light stabilizer HALS770: 0.05 part); 1 part of auxiliary agent: (including silane coupling agent KH550: 0.3 parts, lubricant stearic acid: 0.2 parts, inorganic flame retardant antimony trioxide: 0.5 parts).

[0032] Preparation of stone paper: Weigh each raw material component according to the formula ratio, mix it evenly, and send it to an 80°C mixer for 5 minutes for material activation, and then pressurize a vertical internal mixer at 100~200°C for 9 minutes, and banbury The rotor speed of the machine is 20r / min; the uniformly mixed material m...

Embodiment 2

[0034] Stone paper raw material composition:

[0035] 16 parts of polypropylene powder with a moisture content of 0.6%; 1 part of EVA / EAA copolymer pellets; 60 parts of talc powder with a particle size of 700-900 mesh and a moisture content of 0.2%; 9 parts of titanium dioxide powder with a moisture content of 700-900 mesh; 3 parts of benzoic acid ; 0.35 parts of anti-aging agent: (including antioxidant 1076: 0.2 parts, ultraviolet absorber UV326: 0.1 parts, light stabilizer HALS622: 0.05 parts); 3 parts of auxiliary agents: (including titanate coupling agent CS101: 1 parts, lubricant calcium stearate: 1 part, inorganic flame retardant aluminum hydroxide: 1 part).

[0036] Preparation of stone paper: Weigh each raw material component according to the formula ratio, mix it evenly and send it to a mixer at 90°C for 6 minutes to activate the material, then pressurize it at 120~220°C for 7 minutes with a vertical internal mixer, and banbury The rotor speed of the extruder is 30r / ...

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Abstract

The invention discloses a waterproof corrosion-resistant antiaging high-flexibility rich mineral paper and a preparation method thereof. The rich mineral paper is composed of the following raw materials in parts by weight: 15-20 parts of synthetic resin, 1-5 parts of EVA / EAA (ethylene-vinyl acetate / ethylene-acrylic acid) copolymer, 55-60 parts of inorganic powder, 5-10 parts of shielding agent, 1-4 parts of preservative, 0.1-1 part of antiaging agent and 1-10 parts of assistant. The preparation method comprises the following steps: weighing raw materials according to the formula proportion, uniformly mixing, sending into an 80-120-DEG C mixer, mixing for 5-15 minutes to activate the materials, mixing by a 100-240-DEG C Banbury mixer for 5-10 minutes, pressing the obtained material into a single screw / double screw extruder through a bi-wrist / bipyramid feeder, carrying out extrusion forming at 130-190 DEG C, cooling, granulating, introducing the master batch into a drying machine, drying until the water content is less than 0.3%, extruding by a 190-230-DEG C DEG C, calendering by a 40-70-DEG C calender, carrying out cooling to form, and trimming to obtain the rich mineral paper finished product. The rich mineral paper has the advantages of water resistance, corrosion resistance, aging resistance, long use period, high / low temperature resistance, simple production technique and very high popularization value.

Description

technical field [0001] The invention belongs to the technical field of stone paper preparation, and in particular relates to a stone paper with good waterproof, corrosion resistance, aging resistance, flexibility and a preparation method thereof. Background technique [0002] Stone paper is a new type of material between paper and plastic, which can replace some traditional functional paper and most of the traditional plastic packaging. Its most prominent advantage is that it is low-carbon and environmentally friendly. It does not consume wood, straw, bamboo and other plant materials like traditional papermaking, and the production process basically does not emit waste gas, waste water, waste residue and other pollutants. However, the following deficiencies still generally exist in the existing stone paper production: high production cost, single function, especially short waterproof and anticorrosion cycle, poor effect, poor adhesion, and water leakage and leakage when used...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/12C08L23/08C08L91/06C08K13/02C08K3/26C08K3/04C08K5/098C08K3/22C08K3/34C08K5/09C08K3/36C08K3/30C08K3/38B29C47/92B29C48/92
CPCC08L23/06B29C48/92B29C2948/9258B29C2948/92704C08L23/12C08L2201/08C08L2205/03C08L2205/035C08L23/0853C08L23/0869C08K13/02C08K2003/265C08K3/04C08K5/098C08K3/2279C08K3/34C08K2003/2241C08K2003/2227C08L91/06C08K3/36C08K5/09C08K2003/3045C08K2003/2296C08K2003/387
Inventor 严杨刘瑞铭张习红邵国卫赵华玲刘畅
Owner KUNMING IRON & STEEL HLDG CO LTD
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