CN102604027A - Polyurethane foam damping material and preparation method for same - Google Patents
Polyurethane foam damping material and preparation method for same Download PDFInfo
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- CN102604027A CN102604027A CN2012100621578A CN201210062157A CN102604027A CN 102604027 A CN102604027 A CN 102604027A CN 2012100621578 A CN2012100621578 A CN 2012100621578A CN 201210062157 A CN201210062157 A CN 201210062157A CN 102604027 A CN102604027 A CN 102604027A
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Abstract
The invention relates to a polyurethane foam damping material and a preparation method for the same. The density of the polyurethane foam damping material is 70-170kg/m3, the damping coefficient of the material is larger than or equal to 0.3, and the preparation method is simple. The polyurethane foam damping material is made of pepper waste, and makes the best of waste generated during industrial and agricultural production, so that resource waste is avoided, pressure of petroleum resources is relieved, and environmental pollution caused by improper treatment of biomass waste is reduced. Besides, the polyurethane foam damping material with good comprehensive performances can be prepared.
Description
Technical field
The present invention relates to the chemical engineering of materials technical field, be specifically related to a kind of polyurethane foam damping material and preparation method thereof.
Background technology
Polyurethane foamed material is one type of extensive and widely apply foam materials, and its principal character is a porousness, thereby specific density is little, and specific tenacity is high.Polyurethane foam has excellent physical and mechanical properties, acoustical behavior, electric property and chemical resistance, and its density size and soft or hard degree all can change along with the different of raw material and prescription.Can directly become polymer foam, save polymerization, separation, made with extra care, extrude operation in the middle of the granulating etc. from the raw material monomer time processing.Adjusting formula combination such as chemical structure that can be through changing polyvalent alcohol and isocyanic ester when urethane is synthetic, specification, kind; Make the terminal goods of various performances and purposes; Like materials such as conduction, magnetic conduction, high temperature resistant, wear-resisting, fire-retardant, high resilience, high-density, low density, high suction foams; Range of application very extensively is particularly suitable for uses such as furniture, bed accessory, transportation, refrigeration, building, has become one of indispensable material.Preparation polyurethane foamed material most important material is polymerized polyalcohol and isocyanic ester.It is to be polymerized by organic molecule that traditional method prepares the used polymerized polyalcohol of polyurethane foamed material, belongs to synthetic macromolecule, is the derived product of petrochemical industry.
It is found that, can with can regenerate, resourceful biomass resource prepares plant polyatomic alcohol through liquefaction process, is used to prepare polyurethane foamed material.In petroleum resources exhausted day by day today, this technology will be of great immediate significance.
Summary of the invention
The objective of the invention is with the capsicum waste is the polyurethane foam damping material that raw material provides a kind of low cost, excellent combination property.
Polyurethane foam damping material density of the present invention is 70～170kg/m
3, ratio of damping>=0.3.
Further, said ratio of damping is 0.3～0.6.
In addition, said material mainly is prepared from each composition of following weight parts:
Wherein, said capsicum liquefaction thing, is prepared from 130～190 ℃ of liquefaction 30～150min under polyvalent alcohol liquifier and catalyst action by 20～80 order capsicum wastes; Wherein, the weight ratio of polyvalent alcohol liquifier and capsicum waste is (3～5): 1; Said catalyst consumption is 3～4% of a polyvalent alcohol liquifier weight.
In industry; Capsicum is through a series of deep processing; The higher CAPSAICIN of using value, capsicine, chilli seed oil, antioxidant component, the sterilization and anticorrosion material that becomes to grade is extracted and utilizes, and residue contains the residue that enriches Mierocrystalline cellulose, hemicellulose components in a large number, is difficult to utilize.The present invention with depleted capsicum in capsicum industrial residue or the daily life, be that the capsicum waste is a raw material; Under the effect of polyvalent alcohol liquifier and catalyzer; The capsicum waste is carried out liquefaction processing; Obtain being rich in the liquefied product of hydroxyl, make it substitute traditional polyethers or polyester polyol, the preparation polyurethane damping material.
In addition, said polyvalent alcohol liquifier is selected from one or more in polyoxyethylene glycol, USP Kosher, NSC 11801, the terepthaloyl moietie; Preferred weight ratio is (2～6): 1 the PEG 400 and the mixture of USP Kosher; Said catalyzer is the concentrated hydrochloric acid or the vitriol oil; Preferred mass concentration is 98% the vitriol oil.
In addition, said isocyanic ester is one or more in polymethylene multi-phenenyl isocyanate, tolylene diisocyanate or the diphenylmethanediisocyanate; The preferred isocyano-content of said polymethylene multi-phenenyl isocyanate is 30.5%～32.0% polymethylene multi-phenenyl isocyanate.
In addition, said whipping agent is selected from N, N-dimethylcyclohexylamine, triethylenediamine, pyridine, triethylamine, N, one or more in the N-dimethylethanolamine; Said linking agent is selected from one or more in stannous octoate, dibutyltin dilaurate, mercaptan dioctyl tin, the sulfuric acid dioctyl tin; The preferred triethylamine of said whipping agent; The preferred dibutyltin dilaurate of said linking agent.
In addition, said material also comprises 0.5～0.7 part of suds-stabilizing agent; Said suds-stabilizing agent is selected from one or more in methyl-silicone oil, tween 80, the polysorbate60; Preferable methyl silicone oil.
The present invention also provides a kind of preparation method according to said polyurethane foam damping material, and it comprises the steps:
(1) with each composition thorough mixing, mixture is natural foaming 5～60s after stirring 10～60s under 20～40 ℃;
(2) mixture after will foaming is cooled to room temperature in 80～120 ℃ of insulation 8～24h, makes said polyurethane foam damping material.
Wherein, the speed of said stirring is 800～1400r/min.Through the present invention a kind of low cost, the good rigid poly urethanes damping material of over-all properties can be provided; Its density can reach 70～170kg/m3; Compressive strength is 4～1200kPa, and thermal conductivity is smaller or equal to 0.070w/ (m ℃), and second-order transition temperature is 120～140 ℃; Ratio of damping is controlled between 0.3～0.6, and is wherein bigger more than or equal to 0.3 warm territory scope.
Prepare the polyurethane foam damping material through method of the present invention; Not only method is simple; And cost is low, energy-conserving and environment-protective, for the capsicum waste material utilizes again valid approach is provided, and the more important thing is to have obtained the fabulous polyurethane foam damping material of a kind of ratio of damping.
Beneficial effect of the present invention:
(1) the present invention has comparatively significantly cost advantage.Be raw material with the capsicum waste in the invention; Make full use of the waste that produces in worker, the agriculture prodn, avoided the waste of resource, alleviated the pressure of petroleum resources; Reduced biomass waste and dealt with the environmental pollution that brings improperly, also increased economic benefit simultaneously for this crop of capsicum.
(2) the now existing biomass that are used for alternative polyvalent alcohol mainly concentrate on corn straw, sugarcane, bark etc.; Thick with its liquefied product and the most abscess of urethane synthetic foam, and uneven, and color is not good; Crushing resistance is less, fragility is bigger; Significantly improved the apparent colour of polyurethane foam through synthetic polyurethane foamed material of the present invention, made the synthetic material need not add any modifying agent, abscess just can be evenly fine and close; Compressive strength can in very large range change according to different demands: little of 4kPa, and can the soft preferably bubble of production elasticity; To 1200kPa, greatly improve the foamy compressive strength under given conditions greatly, improved existing biomass-based polyurethane foamed material present situation effectively.
(3) in general, ratio of damping is well behaved damping material greater than 0.3 material.The polyurethane foamed material that adopts liquifying method provided by the present invention and compound method to obtain can be controlled at ratio of damping between 0.3～0.6, and ratio of damping is bigger more than or equal to 0.3 warm territory scope.
(4) the polyurethane foam damping material that is obtained by the present invention has higher initial storage modulus and second-order transition temperature, and promptly product has the higher stable performance.
In sum, method provided by the invention can prepare a kind of low cost, the good rigid poly urethanes damping material of over-all properties, has good market, environmental protection and using value.
Description of drawings
Fig. 1 is the polyurethane foam damping material damping temperature characteristics figure among the embodiment 1.
Fig. 2 is the polyurethane foam damping material damping temperature characteristics figure among the embodiment 2.
Fig. 3 is the polyurethane foam damping material damping temperature characteristics figure among the embodiment 3.
Fig. 4 is the polyurethane foam damping material damping temperature characteristics figure among the embodiment 4.
Fig. 5 is the polyurethane foam damping material damping temperature characteristics figure among the embodiment 5.
Embodiment
Following examples are used to explain the present invention, but are not used for limiting scope of the present invention.
Each physical parameter measurement standard of the polyurethane foam damping material that makes among the embodiment is as follows.
1. density: measure according to GB/T6343-1995;
2. compressive strength: measure according to GB/T8813-2008/IS0844:2004;
3. thermal conductivity: measure according to GB/T3399-1982;
4. dynamic characteristics (second-order transition temperature and group Buddhist nun factor peak value): foam materials is prepared into 18 * 15 * 10mm rectangular parallelepiped sample, with the surface with fine sandpaper filing gently.With dynamic mechanical analysis appearance (DMA; U.S. TA company produces, model Q800) testing sample is measured; Select compression clamp in the experimentation for use; Select the multifrequency contingency model in the control software, strain is at linear viscoelastic region according to the different set different numerical of material with the distortion that guarantees foam materials; Frequency adopts 1Hz; Preload force is that the 0.1N temperature scans 120 ℃～160 ℃ by room temperature, and temperature rise rate is 3 ℃/min, and sample at room temperature balance 3min carries out heat and mechanical balance.
Embodiment 1
(1) the capsicum waste is crushed to 20 orders, 120 ℃ are dried to constant weight.
(2) get each raw material of following weight:
Polyoxyethylene glycol-400, USP Kosher, the vitriol oil mixed being put in that oil bath is heated to 190 ℃ in the there-necked flask, add the capsicum waste then, liquefaction 90min is quickly cooled to room temperature, obtains capsicum liquefaction thing.
(3) get each material of following weight:
Wherein, (the magnificent urethane in Yantai ten thousand ltd produces polymethylene multi-phenenyl isocyanate, and model: PM-200), other equal reagent are analytical pure.
Above-mentioned mixing of materials in stirred vessel, is fallen in mould after stirring 60s with 1200 rev/mins under 25 ℃, and natural foaming 10s places 12h in 80 ℃, under room temperature, preserves 24h again, makes its abundant slaking moulding, makes the polyurethane foam damping material.
The polyurethane foam damping material density that makes is 143.76kg/m
3, compressive strength is 565.25kPa, thermal conductivity is 0.0409W/ (m a ℃); Second-order transition temperature is 114 ℃, and the damping factor peak value is 0.5593, and is as shown in Figure 1; Damping factor is that the damping factor area more than 0.3 is bigger, therefore can know that it has good damping.
Embodiment 2
(1) the capsicum waste is crushed to 80 orders, 80 ℃ are dried to constant weight.
(2) get the raw material of following parts by weight:
Capsicum waste 20g
USP Kosher 100g
Concentrated hydrochloric acid (massfraction 98%) 4g
USP Kosher, concentrated hydrochloric acid mixed being put in that oil bath is heated to 150 ℃ in the there-necked flask, add the capsicum waste then, liquefaction 150min is quickly cooled to room temperature, obtains the capsicum liquefied product.
(3) get the material of following mass fraction:
Above-mentioned mixing of materials in stirred vessel, is fallen in mould after stirring 15s with 1300 rev/mins under 30 ℃, and natural foaming 60s places 12h in 120 ℃, under room temperature, preserves 8h again, makes its abundant slaking moulding, makes the polyurethane foam damping material.
The polyurethane foam damping material density that makes is 177.02kg/m3; Compressive strength is 848.52kPa, and thermal conductivity is 0.0482W/ (m a ℃), and second-order transition temperature is 130 ℃; The damping factor peak value is 0.3918; As shown in Figure 2, damping factor is that the damping factor area more than 0.3 is bigger, therefore can know that it has good damping.
Embodiment 3
(1) the capsicum waste is crushed to 60 orders, 100 ℃ are dried to constant weight.
(2) get the raw material of following parts by weight:
Capsicum waste 20g
Terepthaloyl moietie 60g
Concentrated hydrochloric acid (massfraction is 98%) 1.8g
Terepthaloyl moietie, the vitriol oil mixed being put in that oil bath is heated to 130 ℃ in the there-necked flask, add the capsicum waste then, liquefaction 30min is quickly cooled to room temperature, obtains capsicum liquefaction thing.
(3) get the material of following mass fraction:
Above-mentioned mixing of materials in stirred vessel, is fallen in mould after stirring 45s with 1000 rev/mins under 20 ℃, and natural foaming 5s places 24h in 100 ℃, under room temperature, preserves 12h again, makes its abundant slaking moulding, makes the polyurethane foam damping material.
The polyurethane foam damping material density that makes is 169.74kg/m3; Compressive strength is 657.04kPa, and thermal conductivity is 0.048W/ (m a ℃), and second-order transition temperature is 122 ℃; The damping factor peak value is 0.4846; As shown in Figure 3, damping factor is that the damping factor area more than 0.3 is bigger, therefore can know that it has good damping.
Embodiment 4
(1) the capsicum waste is crushed to 80 orders, 80 ℃ are dried to constant weight.
(2) get the raw material of following parts by weight:
Polyoxyethylene glycol-400, USP Kosher, the vitriol oil mixed being put in that oil bath is heated to 160 ℃ in the there-necked flask, add the capsicum waste then, liquefaction 30min is quickly cooled to room temperature, obtains capsicum liquefaction thing.
(3) get the material of following mass fraction:
Above-mentioned mixing of materials in stirred vessel, is fallen in mould after stirring 20s with 800 rev/mins under 40 ℃, and natural foaming 60s places 24h in 100 ℃, under room temperature, preserves 12h again, makes its abundant slaking moulding, makes the polyurethane foam damping material.
The polyurethane foam damping material density that makes is 186.01kg/m3; Compressive strength is 935.35kPa, and thermal conductivity is 0.052W/ (m a ℃), and second-order transition temperature is 116 ℃; The damping factor peak value is 0.547; As shown in Figure 4, damping factor is that the damping factor area more than 0.3 is bigger, therefore can know that it has good damping.
Embodiment 5
(1) the capsicum waste is crushed to 80 orders, 120 ℃ are dried to constant weight.
(2) get the raw material of following parts by weight:
Polyoxyethylene glycol-400, USP Kosher, the vitriol oil mixed being put in that oil bath is heated to 170 ℃ in the there-necked flask, add the capsicum waste then, liquefaction 60min is quickly cooled to room temperature, obtains capsicum liquefaction thing.
(3) get the material of following mass fraction:
Wherein, (the magnificent urethane in Yantai ten thousand ltd produces polymethylene multi-phenenyl isocyanate, and model: PM-200), other equal reagent are analytical pure.
Above-mentioned mixing of materials in stirred vessel, is fallen in mould after stirring 20s with 1400 rev/mins under 40 ℃, and natural foaming 15s places 24h in 100 ℃, under room temperature, preserves 12h again, makes its abundant slaking moulding, makes the polyurethane foam damping material.
The polyurethane foam damping material density that makes is 143.96kg/m3; Compressive strength is 565.75kPa, and thermal conductivity is 0.0501W/ (m a ℃), and second-order transition temperature is 128 ℃; The damping factor peak value is 0.5557; As shown in Figure 5, damping factor is that the damping factor area more than 0.3 is bigger, therefore can know that it has good damping.
Claims (10)
1. a polyurethane foam damping material is characterized in that, said polyurethane foam damping material density is 70～170kg/m
3, ratio of damping>=0.3.
2. polyurethane foam damping material according to claim 1 is characterized in that, said ratio of damping is 0.3～0.6.
3. polyurethane foam damping material according to claim 1 is characterized in that, said material mainly is prepared from each composition of following weight parts:
4. according to the arbitrary described polyurethane foam damping material of claim 1～3, it is characterized in that said capsicum liquefaction thing, is prepared from 130～190 ℃ of liquefaction 30～150min by 20～80 order capsicum wastes under polyvalent alcohol liquifier and catalyst action; Wherein, the weight ratio of polyvalent alcohol liquifier and capsicum waste is (3～5): 1; Said catalyst consumption is 3～4% of a polyvalent alcohol liquifier weight.
5. polyurethane foam damping material according to claim 4 is characterized in that, said polyvalent alcohol liquifier is selected from one or more in polyoxyethylene glycol, USP Kosher, NSC 11801, the terepthaloyl moietie; Said polyvalent alcohol liquifier is that weight ratio is (2～6): 1 the PEG 400 and the mixture of USP Kosher; Said catalyzer is the concentrated hydrochloric acid or the vitriol oil; Said catalyzer is that mass concentration is 98% the vitriol oil.
6. according to the arbitrary described polyurethane foam damping material of claim 1～3, it is characterized in that said isocyanic ester is one or more in polymethylene multi-phenenyl isocyanate, tolylene diisocyanate or the diphenylmethanediisocyanate; Said polymethylene multi-phenenyl isocyanate is that isocyano-content is 30.5%～32.0% polymethylene multi-phenenyl isocyanate.
7. according to the arbitrary described polyurethane foam damping material of claim 1～3, it is characterized in that said whipping agent is selected from N, N-dimethylcyclohexylamine, triethylenediamine, pyridine, triethylamine, N, one or more in the N-dimethylethanolamine; Said linking agent is selected from one or more in stannous octoate, dibutyltin dilaurate, mercaptan dioctyl tin, the sulfuric acid dioctyl tin; Said whipping agent is a triethylamine; Said linking agent is a dibutyltin dilaurate.
8. according to the arbitrary described polyurethane foam damping material of claim 1～3, it is characterized in that said material also comprises 0.5～0.7 part of suds-stabilizing agent; Said suds-stabilizing agent is selected from one or more in methyl-silicone oil, tween 80, the polysorbate60; Preferable methyl silicone oil.
9. according to the preparation method of the arbitrary said polyurethane foam damping material of claim 1～8, it is characterized in that, comprise the steps:
(1) with each composition thorough mixing, mixture is natural foaming 5～60s after stirring 10～60s under 20～40 ℃;
(2) mixture after will foaming is cooled to room temperature in 80～120 ℃ of insulation 8～24h, makes said polyurethane foam damping material.
10. preparation method according to claim 9 is characterized in that, the speed of said stirring is 800～1400r/min.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103626948A (en) * | 2013-11-26 | 2014-03-12 | 北京联合大学生物化学工程学院 | Polyurethane foam material synthesized from plant polyols |
| CN103601866B (en) * | 2013-11-26 | 2015-11-04 | 北京联合大学生物化学工程学院 | A kind of method utilizing plant polyatomic alcohol synthesis of polyurethane foam materials |
| CN109265640A (en) * | 2018-08-16 | 2019-01-25 | 德清舒华泡沫座椅有限公司 | A kind of high-damping high-strength polyurethane foam |
| CN112521572A (en) * | 2019-09-19 | 2021-03-19 | 北京化工大学 | Polyurethane foamable composition, polyurethane foam, and method for producing same |
| CN114874609A (en) * | 2022-03-07 | 2022-08-09 | 上海交通大学 | High-damping intelligent vibration damping sheet material and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102181030A (en) * | 2011-04-07 | 2011-09-14 | 中国农业大学 | Method for preparing corncob-base polyurethane rigid foam damping material |
| CN102443127A (en) * | 2011-10-17 | 2012-05-09 | 中国农业大学 | Method for preparing biodegradable polyurethane foam from industrial capsicum waste residue |
-
2012
- 2012-03-09 CN CN 201210062157 patent/CN102604027B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102181030A (en) * | 2011-04-07 | 2011-09-14 | 中国农业大学 | Method for preparing corncob-base polyurethane rigid foam damping material |
| CN102443127A (en) * | 2011-10-17 | 2012-05-09 | 中国农业大学 | Method for preparing biodegradable polyurethane foam from industrial capsicum waste residue |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103626948A (en) * | 2013-11-26 | 2014-03-12 | 北京联合大学生物化学工程学院 | Polyurethane foam material synthesized from plant polyols |
| CN103601866B (en) * | 2013-11-26 | 2015-11-04 | 北京联合大学生物化学工程学院 | A kind of method utilizing plant polyatomic alcohol synthesis of polyurethane foam materials |
| CN109265640A (en) * | 2018-08-16 | 2019-01-25 | 德清舒华泡沫座椅有限公司 | A kind of high-damping high-strength polyurethane foam |
| CN112521572A (en) * | 2019-09-19 | 2021-03-19 | 北京化工大学 | Polyurethane foamable composition, polyurethane foam, and method for producing same |
| CN114874609A (en) * | 2022-03-07 | 2022-08-09 | 上海交通大学 | High-damping intelligent vibration damping sheet material and preparation method thereof |
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