CN105294980A - Straw foaming thermal-insulation material and preparation method thereof - Google Patents
Straw foaming thermal-insulation material and preparation method thereof Download PDFInfo
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- CN105294980A CN105294980A CN201510795921.6A CN201510795921A CN105294980A CN 105294980 A CN105294980 A CN 105294980A CN 201510795921 A CN201510795921 A CN 201510795921A CN 105294980 A CN105294980 A CN 105294980A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
- C08G18/4081—Mixtures of compounds of group C08G18/64 with other macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/64—Macromolecular compounds not provided for by groups C08G18/42 - C08G18/63
- C08G18/6492—Lignin containing materials; Wood resins; Wood tars; Derivatives thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2101/00—Manufacture of cellular products
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/322—Ammonium phosphate
- C08K2003/323—Ammonium polyphosphate
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The present invention relates to a straw foaming thermal-insulation material and a preparation method thereof, and belongs to the field of foam thermal-insulation composite materials, wherein the raw materials comprise, by weight, 61-65 parts of straw, 15-20 parts of polyether polyol (material A), 15-20 parts of isocyanic acid (material B), 5-8 parts of a stabilizer, and 5-8 parts of a flame retardant agent, and the straw is subjected to an alkali treatment, and foaming and curing molding are performed to obtain the thermal-insulation material. According to the present invention, with the alkali treatment, lignin, pectin and other components in the straw are removed so as to easily improve the strength of the straw, and the bonding property between the straw and the matrix interface is good; the prepared composite material has characteristics of good mechanical property, good thermal insulation, good sound insulation, good flame retardant property, and the like; the straw adopted as the natural plant material has good biodegradability, has the natural hollow structure, and has the good thermal insulation property; and the preparation process of the present invention is simple, can be used for industrial production, and is suitable for the fields of building, home, vehicles, and the like.
Description
Technical field
The invention belongs to foam thermal insulation field of compound material, be specifically related to a kind of straw foamed lagging material and preparation method thereof.
Background technology
Stalk fibre, as a kind of native cellulose fibre, has good biodegradability, can become environmentally friendly product.At present these resources are not only well utilized, and we every summer and autumn, just can see the incineration flue gas of field.These flue gases are made troubles to the live and work of people, affect our living environment widely.
Along with the raising of expanding economy, living standards of the people, the use range of foam material is more and more wider, as packaging, damping, sound insulation, heat insulation etc. in use.Enter 21 century, along with the mankind are to the attention more of environment of depending on for existence, under the prerequisite meeting performance, for foamed material product propose economical and practical, facilitate attractive in appearance, reclaim well, be convenient to the requirements such as process.Society, conventional plastic foaming product demand is still very large, but due to the easily aging shortcoming of plastic material, and the problem of environmental pollution therefore produced is given prominence to gradually, makes conventional plastic foam material be subject to great restriction.Exploration utilizes agriculture stalk fibre, by foaming technique, prepares novel stalk fibre foam material, has actual application value, should be paid much attention to.
Summary of the invention
According to problems of the prior art, the invention provides a kind of straw foamed lagging material, and preparation technology is simple, obtained matrix material is pollution-free, insulation, good flame retardation effect.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of straw foamed lagging material, is made up of the raw material of following parts by weight: stalk 61-65 part, polyether glycol (A material) 15-20 part, isocyanic acid (B material) 15-20 part, stablizer 5-8 part, fire retardant 5-8 part.
Described stalk is one or more in rice straw, straw, cornstalk, reed stalk.
Described stablizer is lead salt stabilizer.
Described fire retardant is phosphorus type flame retardant.
A preparation method for straw foamed lagging material, comprises the following steps:
Step one: adopt mechanical means to pulverize stalk, be broken into length and be less than 5mm;
Step 2: the stalk after pulverizing is put into the NaOH solution that weight concentration is 5%, the mass ratio of stalk and NaOH solution is 1:100,95-100 DEG C of heating 25-30min, then be washed till neutrality with 50-60 DEG C of tap water, put into the electric heating constant temperature baking oven drying for standby of 50-60 DEG C after filtering;
Step 3: add polyether glycol (A material), isocyanic acid (B material), stablizer, fire retardant in the stalk after oven dry, mixing and stirring, stirring velocity is 100-120r/min, churning time is 6-8min, the natural foaming when room temperature reaches > 15 DEG C;
Step 4: the mixture in step 3 is mated formation into forming mould, in electric heating forming machine, cure under pressure is shaping, mold temperature 70-80 DEG C, pressure 3-6MPa, molding time 3-5min;
Step 5: excision forming.
Beneficial effect of the present invention is: alkaline purification eliminates the composition such as xylogen, pectin in stalk, and be conducive to the brute force promoting stalk, after alkaline purification, the agglutinating value(of coal) of stalk and basal body interface is better; Obtained composite materials property is good, and has good heat insulation, sound insulation, the performance such as fire-retardant.Stalk, as natural plant material, has good biodegradability, and stalk has natural hollow structure, good heat insulating, and preparation technology of the present invention is simple, may be used for suitability for industrialized production, is applicable to the fields such as building, household, automobile.
Embodiment
Embodiment 1
A kind of straw foamed lagging material, is made up of the raw material of following parts by weight: rice straw 61 parts, polyether glycol (A material) 15 parts, isocyanic acid (B material) 15 parts, lead sulfate tribasic 5 parts, ammonium polyphosphate 5 parts.
A preparation method for straw foamed lagging material, comprises the following steps:
Step one: adopt mechanical means to pulverize rice straw, be broken into size and be less than 5mm;
Step 2: the rice straw after pulverizing is put into the NaOH solution that weight concentration is 5%, the mass ratio of rice straw and NaOH solution is 1:100,95 DEG C of heating 25min, then be washed till neutrality with 50 DEG C of tap water, put into the electric heating constant temperature baking oven drying for standby of 50 DEG C after filtering;
Step 3: add polyether glycol (A material), isocyanic acid (B material), lead sulfate tribasic, ammonium polyphosphate in the rice straw after oven dry, mixing and stirring, stirring velocity is 100r/min, churning time is 6min, the natural foaming when room temperature reaches > 15 DEG C;
Step 4: the mixture in step 3 is mated formation into forming mould, in electric heating forming machine, cure under pressure is shaping, mold temperature 70 DEG C, pressure 5MPa, molding time 4min;
Step 5: excision forming.
Embodiment 2
A kind of straw foamed lagging material, is made up of the raw material of following parts by weight: straw 65 parts, polyether glycol (A material) 20 parts, isocyanic acid (B material) 20 parts, lead sulfate tribasic 8 parts, ammonium polyphosphate 8 parts.
A preparation method for straw foamed lagging material, comprises the following steps:
Step one: adopt mechanical means to pulverize straw, be broken into size and be less than 5mm;
Step 2: the straw after pulverizing is put into the NaOH solution that weight concentration is 5%, the mass ratio of straw and NaOH solution is 1:100,100 DEG C of heating 30min, then be washed till neutrality with 60 DEG C of tap water, put into the electric heating constant temperature baking oven drying for standby of 60 DEG C after filtering;
Step 3: add polyether glycol (A material), isocyanic acid (B material), lead sulfate tribasic, ammonium polyphosphate in the straw after oven dry, mixing and stirring, stirring velocity is 120r/min, churning time is 8min, the natural foaming when room temperature reaches > 15 DEG C;
Step 4: the mixture in step 3 is mated formation into forming mould, in electric heating forming machine, cure under pressure is shaping, mold temperature 80 DEG C, pressure 5MPa, molding time 5min;
Step 5: excision forming.
Above to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technical scheme is carried out; or design of the present invention and technical scheme directly applied to other occasion, all within protection scope of the present invention without to improve.The protection domain that protection scope of the present invention should limit with claims is as the criterion.
Claims (7)
1. a straw foamed lagging material, is characterized in that, is made up of the raw material of following parts by weight: stalk 61-65 part, polyether glycol 15-20 part, isocyanic acid 15-20 part, stablizer 5-8 part, fire retardant 5-8 part.
2. a kind of straw foamed lagging material according to claim 1, is characterized in that, be made up of the raw material of following parts by weight: stalk 61 parts, polyether glycol 15 parts, isocyanic acid 15 parts, stablizer 5 parts, fire retardant 5 parts.
3. a kind of straw foamed lagging material according to claim 1, is characterized in that, be made up of the raw material of following parts by weight: stalk 65 parts, polyether glycol 20 parts, isocyanic acid 20 parts, stablizer 8 parts, fire retardant 8 parts.
4. a kind of straw foamed lagging material according to any one of claim 1-3, is characterized in that: described stalk is one or more in rice straw, straw, cornstalk, reed stalk.
5. a kind of straw foamed lagging material according to any one of claim 1-3, is characterized in that: described stablizer is lead salt stabilizer.
6. a kind of straw foamed lagging material according to any one of claim 1-3, is characterized in that: described fire retardant is phosphorus type flame retardant.
7. a preparation method for the straw foamed lagging material described in any one of claim 1-6, is characterized in that, comprise the following steps:
Step one: adopt mechanical means to pulverize stalk, be broken into length and be less than 5mm;
Step 2: the stalk after pulverizing is put into the NaOH solution that weight concentration is 5%, the mass ratio of stalk and NaOH solution is 1:100,95-100 DEG C of heating 25-30min, then be washed till neutrality with 50-60 DEG C of tap water, put into the electric heating constant temperature baking oven drying for standby of 50-60 DEG C after filtering;
Step 3: add polyether glycol, isocyanic acid, stablizer, fire retardant, mixing and stirring in the stalk after oven dry, stirring velocity is 100-120r/min, and churning time is 6-8min, the natural foaming when room temperature reaches > 15 DEG C;
Step 4: the mixture in step 3 is mated formation into forming mould, in electric heating forming machine, cure under pressure is shaping, mold temperature 70-80 DEG C, pressure 3-6MPa, molding time 3-5min;
Step 5: excision forming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510795921.6A CN105294980A (en) | 2015-11-17 | 2015-11-17 | Straw foaming thermal-insulation material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510795921.6A CN105294980A (en) | 2015-11-17 | 2015-11-17 | Straw foaming thermal-insulation material and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN105294980A true CN105294980A (en) | 2016-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510795921.6A Pending CN105294980A (en) | 2015-11-17 | 2015-11-17 | Straw foaming thermal-insulation material and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107572915A (en) * | 2017-08-31 | 2018-01-12 | 河北建筑工程学院 | A kind of agricultural stalk insulation material and preparation method thereof |
| CN107903617A (en) * | 2017-12-29 | 2018-04-13 | 浙江鸿安建设有限公司 | A kind of biomass-based thermal insulation material used for building exterior wall and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103275332A (en) * | 2013-06-06 | 2013-09-04 | 济南圣泉集团股份有限公司 | Corn cob lignin and application |
| WO2014067156A1 (en) * | 2012-11-05 | 2014-05-08 | Ma Mingyuan | Environmentally friendly board obtained by recycling straw |
| CN104529517A (en) * | 2014-12-30 | 2015-04-22 | 山东百龙创园生物科技有限公司 | Heat insulating material added with maltitol and preparation method of heat insulating material |
| CN104591670A (en) * | 2015-02-04 | 2015-05-06 | 河南省高新技术实业总公司 | Method for producing thermal-insulation sheet |
| CN104761818A (en) * | 2015-04-25 | 2015-07-08 | 桂林理工大学 | Method for preparing polypropylene-based wood-plastic composite material by using straw |
-
2015
- 2015-11-17 CN CN201510795921.6A patent/CN105294980A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014067156A1 (en) * | 2012-11-05 | 2014-05-08 | Ma Mingyuan | Environmentally friendly board obtained by recycling straw |
| CN103275332A (en) * | 2013-06-06 | 2013-09-04 | 济南圣泉集团股份有限公司 | Corn cob lignin and application |
| CN104529517A (en) * | 2014-12-30 | 2015-04-22 | 山东百龙创园生物科技有限公司 | Heat insulating material added with maltitol and preparation method of heat insulating material |
| CN104591670A (en) * | 2015-02-04 | 2015-05-06 | 河南省高新技术实业总公司 | Method for producing thermal-insulation sheet |
| CN104761818A (en) * | 2015-04-25 | 2015-07-08 | 桂林理工大学 | Method for preparing polypropylene-based wood-plastic composite material by using straw |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107572915A (en) * | 2017-08-31 | 2018-01-12 | 河北建筑工程学院 | A kind of agricultural stalk insulation material and preparation method thereof |
| CN107903617A (en) * | 2017-12-29 | 2018-04-13 | 浙江鸿安建设有限公司 | A kind of biomass-based thermal insulation material used for building exterior wall and preparation method thereof |
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Application publication date: 20160203 |
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