Unlock instant, AI-driven research and patent intelligence for your innovation.
Modified perlite-rigid polyurethane foamed plastic composite thermal-insulation material
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A composite thermal insulation material and rigid polyurethane technology, applied in the field of material science, can solve the problems of fire hazard, poor fire safety, easy aging, etc., and achieve the effects of simple preparation process, good thermal insulation effect, and good flame retardant performance.
Inactive Publication Date: 2016-12-07
NANJING UNIV OF SCI & TECH
View PDF4 Cites 3 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
The biggest advantage of this type of organic thermal insulation material is light weight, heat insulation, and heat preservation, but the biggest defect is that it is easy to burn, easy to age, and has poor fire safety. Without flame retardant treatment, there are serious fire hazards, leading to building fire accidents.
Polyurethane rigid foam is a flammable organic thermal insulation material, which releases a large amount of toxic gas and smoke when burned, which poses a serious threat to people's life and property safety. Therefore, if its flammable fire prevention cannot be effectively and effectively solved safety issues, then rigid polyurethane foams cannot be widely promoted and applied in my country's building energy conservation
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
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0026] The preparation of modified perlite adopts the following methods:
[0027] (1) Dissolving excess decanediamine in hydrochloric acid with a prepared substance concentration of 0.010mol / L, after partial protonation, decanediamine is partially protonated into one end that still has an active -NH2 group ammonia salt;
[0028] (2) Add perlite to partially protonated decanediamine solution, place it in an oil bath at 55°C, and stir with an electric mixer for 3 hours at a speed of 2000r / min; The dosage ratio is 10g: 100ml;
[0029] (3) Suction filtration, the filter cake is washed with distilled water for 3 to 4 times, dried, ground and sieved to obtain the modified perlite.
Embodiment 2
[0031] The preparation of modified perlite adopts the following methods:
[0032] (1) Dissolving excess decanediamine in hydrochloric acid with a prepared substance concentration of 0.008mol / L, after partial protonation, decanediamine is partially protonated into one end that still has an active -NH2 group ammonia salt;
[0033] (2) Add perlite to partially protonated decanediamine solution, place it in an oil bath at 50°C, and stir with an electric mixer for 4 hours at a speed of 1500r / min; The dosage ratio is 10g: 100ml;
[0034] (3) Suction filtration, the filter cake is washed with distilled water for 3 to 4 times, dried, ground and sieved to obtain the modified perlite.
Embodiment 3
[0036] The preparation of modified perlite adopts the following methods:
[0037] (1) Dissolving excess decanediamine in hydrochloric acid with a prepared substance concentration of 0.012mol / L, after partial protonation, decanediamine is partially protonated into one end that still has an active -NH2 group ammonia salt;
[0038] (2) Add perlite to partially protonated decanediamine solution, place it in an oil bath at 60°C, and stir for 2 hours with an electric mixer at a speed of 2500r / min; The dosage ratio is 10g: 100ml;
[0039] (3) Suction filtration, the filter cake is washed with distilled water for 3 to 4 times, dried, ground and sieved to obtain the modified perlite.
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
Login to View More
Abstract
The invention provides a modified perlite-rigid polyurethane foamed plastic composite thermal-insulation material which is prepared from the following components in parts by weight: modified perlite, triglycidyl isocyanurate, polyesterpolyol, polyether glycol, hydroxy low-molecular-weight compounds, modified nano aluminum hydroxide, a foaming agent, an organosilicon foam stabilizer, microcrystallinecellulose, a composite catalyst, a foaming agent, a flame retardant and water. The composite thermal-insulation material provided by the invention has the advantages of simple preparation technique, low cost, favorable flame retardancy and favorable thermal-insulation effect.
Description
technical field [0001] The invention relates to a modified perlite-rigid polyurethane foam composite thermal insulation material, which belongs to the field of material science. Background technique [0002] In recent years, the use of wall insulation to achieve building energy conservation has been paid more and more attention. The country has also begun to enforce building energy conservation measures. Now the insulation materials used on a large scale in the market mainly include EPS (polystyrene foam), PS (extruded Plastic polystyrene foam) and PU (polyurethane foam). The biggest advantage of this type of organic thermal insulation material is light weight, heat insulation, and heat preservation, but the biggest defect is that it is easy to burn, easy to age, and has poor fire safety. Without flame retardant treatment, there are serious fire hazards, leading to building fire accidents. . Polyurethane rigid foam is a flammable organic thermal insulation material, which ...
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
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More 
Login to View More