Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

High-efficiency heat-insulation environmentally-friendly flame-retardant modified polyolefin indoor heat-insulation foam and preparation method thereof

A polyolefin, environmentally friendly technology, applied in the direction of climate sustainability, sustainable manufacturing/processing, chemical industry, etc., can solve the problems of large combustion smoke, not environmental protection, low thermal insulation effect, etc. Insulates the conduction of heat energy and saves energy

Active Publication Date: 2012-01-25
HUBEI XIANGYUAN NEW MATERIAL TECH INC
View PDF2 Cites 31 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the disadvantages of low thermal insulation efficiency of inorganic thermal insulation materials, non-standard flame retardancy of organic thermal insulation materials, unenvironmental protection, large amount of combustion smoke, release of toxic and harmful gases, low thermal insulation effect, etc., to provide a thermal insulation effect, Reaching A-class flame retardant requirements, environmental protection, non-toxic and tasteless, cross-linked polymer foaming material and preparation method thereof

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Example 1: A method for preparing a high-efficiency, heat-insulating, environmentally friendly, and flame-retardant modified polyolefin indoor thermal insulation foam. The preparation method includes the following steps in sequence:

[0036] The first step: preparation of flame retardant masterbatch A: first take 20 parts by weight of low density polyethylene resin, 30 parts by weight of composite flame retardant, 8 parts by weight of smoke suppressant, 0.3 parts by weight of antioxidant 1010, 0.6 parts by weight Lubricants in parts by weight, kneaded at room temperature for 3-5 minutes, and then discharged into the banbury mixer for banburying. The banbury temperature is 100±5°C, and the banbury time is 6-8 minutes. The flame retardant masterbatch A is obtained by forced feeding into a single-screw extrusion granulator, melted and plasticized and granulated; the composite flame retardant is a compound of microencapsulated ammonium polyphosphate and zinc borate, off-whit...

Embodiment 2

[0058] The first step, the second step, the fourth step, and the fifth step are the same as in Example 1, except that the third step: the low-density polyethylene resin in the preparation of sheet C is 20 parts by weight, ethylene-vinyl acetate copolymer 30 parts by weight, 10 parts by weight of EPDM rubber, 30 parts by weight of flame retardant masterbatch A, 20 parts by weight of foam masterbatch B, 15 parts by weight of hollow ceramic microbeads, and 3 parts by weight of rheological agent 3 parts by weight and lubricant are added in the high mixer.

[0059] The main technical indicators of the gained thermal insulation foam product:

[0060] Appearance: smooth without color difference;

[0061] Product foaming ratio: 30;

[0062] Product Shore hardness: 60A;

[0063] Thermal conductivity: 0.015 ;

[0064] The combustion performance level is: A2-s1, d1, t0 level;

[0065] Lead (Pb) content: ≤5PPM;

[0066] Cadmium (Cd) content: ≤5PPM;

[0067] Hexavalent chromium (C...

Embodiment 3

[0073] The first step, the second step, the fourth step, and the fifth step are different from Example 1 in the third step: the preparation of sheet C is 15 parts by weight of low-density polyethylene resin, and 25 parts by weight of ethylene-vinyl acetate copolymer. Parts by weight, EPDM rubber is 7 parts by weight, flame retardant masterbatch A is 25 parts by weight, foam masterbatch B is 13 parts by weight, hollow ceramic microspheres are 12 parts by weight, rheological agent is 2.5 parts by weight, The lubricant is 2.5 parts by weight.

[0074] The main technical indicators of the gained thermal insulation foam product:

[0075] Appearance: smooth without color difference;

[0076] Product expansion ratio: 15;

[0077] Product Shore hardness: 40A;

[0078] Thermal conductivity: 0.015 ;

[0079] The combustion performance level is: A2-s1, d1, t0 level;

[0080] Lead (Pb) content: ≤5PPM;

[0081] Cadmium (Cd) content: ≤5PPM;

[0082] Hexavalent chromium (Cr) content...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Shore hardnessaaaaaaaaaa
Shore hardnessaaaaaaaaaa
Shore hardnessaaaaaaaaaa
Login to View More

Abstract

The invention relates to high-efficiency heat-insulation environmentally-friendly flame-retardant modified polyolefin indoor heat-insulation foam and a preparation method thereof. The preparation method comprises the following steps of: kneading low-density polyethylene resin, a composite flame retardant, an anti-smoke agent, an antioxidant and a lubricant at normal temperature, then discharging to an internal mixer for internal mixing, then discharging to a single-screw extrusion granulator, and carrying out melting, plastication and granulation to obtain a master batch A; adding low-density polyethylene resin to a high-speed mixer, then adding azobisformamide, talc powder, a lubricant and zinc stearate, kneading at normal temperature, and then discharging to a single-screw extruder for granulating to obtain a master batch D; adding low-density polyethylene resin, ethylene-vinyl acetate copolymer, ethylene propylene terpolymer, the master batch A, a master batch B, hollow ceramic microbeads, a rheologic agent and a lubricant to a high-speed mixer, kneading at normal temperature for 3 minutes, then discharging to a single-screw extruder, and extruding into sheets; carrying out radiation cross-linking on the extruded sheets through an electronic accelerator; placing the cross-linked sheets in a foaming furnace for foaming; and coating expansible fireproof paint on the surface of the foam.

Description

technical field [0001] The invention relates to a high-efficiency, heat-insulating, environment-friendly, flame-retardant modified polyolefin indoor heat-preserving foam and a preparation method thereof. Background technique [0002] At present, the energy consumption of residential buildings accounts for 32% of the national energy consumption. Nearly 40 billion square meters of buildings in my country are basically high-energy-consuming buildings, and the heating energy consumption per unit area is equivalent to 2-3 times that of developed countries with similar climate conditions. At present, nearly 2 billion square meters of new buildings are built in my country every year, exceeding the sum of the construction volume of all developed countries, but more than 95% of them are still high energy consumption buildings. It is predicted that in the next 10 years, that is, by 2020, about 20 billion square meters of buildings will be built in my country. If no energy-saving mea...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/04C08J3/22B29B7/02C08L23/06C08L23/08C08K3/24C08L23/16B29B9/06C08K3/38C08K3/32B29C44/60B29B7/28C08K3/34C08J9/10C08K7/26C08K13/06C08K5/098C08K9/10
CPCY02P20/10
Inventor 魏琼段贤安
Owner HUBEI XIANGYUAN NEW MATERIAL TECH INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products