CN103087502A - Hydrophilic polyurethane foamed plastic and foaming technique - Google Patents
Hydrophilic polyurethane foamed plastic and foaming technique Download PDFInfo
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- CN103087502A CN103087502A CN2012105829055A CN201210582905A CN103087502A CN 103087502 A CN103087502 A CN 103087502A CN 2012105829055 A CN2012105829055 A CN 2012105829055A CN 201210582905 A CN201210582905 A CN 201210582905A CN 103087502 A CN103087502 A CN 103087502A
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Abstract
The invention relates to the technical field of high polymer materials, and in particular relates to a hydrophilic polyurethane foamed plastic and a foaming technique. The hydrophilic polyurethane foamed plastic comprises components A and B according to the proportion of (1.5:1)-(3:1), the component A consists of ingredients in parts by weight: 1-5 parts of sodium carboxymethyl cellulose, 0.5-2 parts of surfactant and 90-95 parts of water, and the component B comprises the polyurethane prepolymer. The hydrophilic polyurethane foamed plastic is good in hydrophilicity, and obvious in water sucking and retaining effects, and has wide application prospects in the fields of medical, female sanitary towels, baby diapers and the like; and the foaming technique is conducted under atmospheric pressure, is low in equipment requirement, little in energy consumption, low in technique cost, less in pollution emission in a production process, and beneficial to environment friendliness.
Description
Technical field
The present invention relates to technical field of polymer materials, relate in particular to a kind of hydrophilic polyurethane bubble silk floss and foam process.
Background technology
Polyurethane foam is a kind of emerging organic polymer material, is called as " the fifth-largest plastics ", because its remarkable performance is widely used in the various fields such as light industry, chemical industry, electronics, weaving, medical treatment, automobile, space flight.Hydrophilic polyurethane bubble silk floss is to add therein the suction composition such as peptizer, make it possess high-hydroscopicity, the effective bubble of lock water is continuous, because suction, the lock water effect of its brilliance obtained in fields such as medical treatment, female sanitary towel, baby diapers fast and developed.
The continuous foaming process of existing hydrophilic polyurethane bubble need to carry out under vacuum condition, and high to requirement, the energy consumption of equipment, process costs is high; Desired raw material comprises organic solvent, and not only the feature of environmental protection is poor, easily to environment, and has potential safety hazard, and the consumer health is worked the mischief.
Summary of the invention
The objective of the invention is provides a kind of suction, lock water effective for the deficiencies in the prior art, and the hydrophilic polyurethane of safety, environmental protection bubble is continuous.
Another object of the present invention is to provide the hydrophilic polyurethane bubble that a kind of normal pressure foams, process costs is low continuous foam process for the deficiencies in the prior art.
In order to realize above purpose, the present invention by the following technical solutions.
A kind of hydrophilic polyurethane bubble is continuous, and it is comprised of component A and the B component ratio according to 1.5:1～3:1, and described component A is comprised of the component of following weight part:
1～5 part of Xylo-Mucine
0.5～2 part, tensio-active agent
90～95 parts, water,
Described B component is polyurethane prepolymer.
Wherein, described component A is comprised of the component of following weight part:
1～3 part of Xylo-Mucine
1～2 part, tensio-active agent
90～93 parts, water.
Wherein, described component A is comprised of the component of following weight part:
3～5 parts of Xylo-Mucines
0.5～1 part, tensio-active agent
93～95 parts, water.
Wherein, described tensio-active agent is nonionic surface active agent.
The continuous foam process of a kind of hydrophilic polyurethane bubble, it comprises the following steps:
(1) step: component A and B component according to the weight part mixing and stirring, are made foamed material;
(2) step: (1) foamed material that makes of step is delivered to the continuous foaming machine of bubble carries out foamable reaction, making the foaming bubble continuous;
(3) step: the bubble silk floss that will foam is delivered to dryer and carries out drying and processing, makes the hydrophilic polyurethane bubble continuous.
Wherein, the preparation method of component A is: according to weight part mix and blend 10～15h, rear standing 20～25h stirs with Xylo-Mucine, tensio-active agent and water.
Wherein, in described (1) step, component A and B component stir under the condition of airtight isolated air, and stirring velocity is 3000～5000r/min.
Wherein, in described (1) step, the temperature of component A is 18～24 ℃, and the temperature of B component is 27～32 ℃.
Wherein, in described (3) step, adopt high frequency or microwave to carry out drying and processing, frequency is 100～150KWh, drying time 3～8min.
Wherein, in described (3) step, the oven dry frequency is 130KWh, drying time 5min.
Compared with prior art, the present invention has the following advantages:
The continuous good hydrophilic property of hydrophilic polyurethane bubble of the present invention, water regain can reach 10～14 times of own wt, compare with existing bubble silk floss, its lock water effect can improve 4 times, and the fields such as medical treatment, female sanitary towel, baby diaper that are applied to have good suction, lock water effect; The starting material safety and environmental protection, hypersensitive significantly reduces; The zwitterionics that contains has good restraining effect to bacterium, is conducive to the healthy of human consumer.
The continuous foam process of hydrophilic polyurethane of the present invention bubble, foaming process carries out under normal pressure, and is low for equipment requirements, and energy consumption, process costs are low, and raw material sources are extensive, are conducive to reduce production costs; The production process disposal of pollutants is few, is conducive to environment protection.
Embodiment
Below in conjunction with embodiment, the present invention is described in detail.
Embodiment 1.
A kind of hydrophilic polyurethane bubble is continuous, it is comprised of component A and the B component ratio according to 1.5:1, described component A comprises the Xylo-Mucine of 1 weight part, the nonionic surface active agent of 0.5 weight part, the water of 90 weight parts, and described B component is polyurethane prepolymer.
The continuous foam process of hydrophilic polyurethane bubble of the present embodiment comprises following processing step:
(1) step: Xylo-Mucine, nonionic surface active agent and water are mixed according to weight part, stir at normal temperatures 10h, the rear standing 20h that stirs makes component A;
(2) step: component A and B component are proportionally mixed, and at airtight isolated air, stirring velocity is to stir under the condition of 3000r/min, makes foamed material; Wherein the mixing temperature of component A is 18 ℃, and the temperature of B component is 27 ℃;
(3) step: (2) foamed material that makes of step is delivered to the continuous foaming machine of bubble carries out foamable reaction, making the foaming bubble continuous;
(4) step: the bubble silk floss that will foam is delivered to dryer and carries out drying and processing, makes the hydrophilic polyurethane bubble continuous, and described drying and processing adopts high frequency or microwave to carry out drying and processing, and frequency is 100KWh, drying time 8min.
Embodiment 2.
A kind of hydrophilic polyurethane bubble is continuous, and it is comprised of component A and the B component ratio according to 2:1, and described component A comprises the Xylo-Mucine of 5 weight parts, the tensio-active agent of 2 weight parts, the water of 95 weight parts, and described B component is polyurethane prepolymer.
The continuous foam process of hydrophilic polyurethane bubble of the present embodiment comprises following processing step:
(1) step: Xylo-Mucine, tensio-active agent and water are mixed according to weight part, stir at normal temperatures 15h, the rear standing 25h that stirs makes component A;
(2) step: component A and B component are proportionally mixed, and at airtight isolated air, stirring velocity is to stir under the condition of 5000r/min, makes foamed material; Wherein the mixing temperature of component A is 24 ℃, and the temperature of B component is 32 ℃;
(3) step: (2) foamed material that makes of step is delivered to the continuous foaming machine of bubble carries out foamable reaction, making the foaming bubble continuous;
(4) step: the bubble silk floss that will foam is delivered to dryer and carries out drying and processing, makes the hydrophilic polyurethane bubble continuous, and described drying and processing adopts high frequency or microwave to carry out drying and processing, and frequency is 150KWh, drying time 3min.
Embodiment 3.
A kind of hydrophilic polyurethane bubble is continuous, and it is comprised of component A and the B component ratio according to 2.5:1, and described component A comprises the Xylo-Mucine of 4 weight parts, the tensio-active agent of 1 weight part, the water of 93 weight parts, described B component polyurethane prepolymer.
The continuous foam process of hydrophilic polyurethane bubble of the present embodiment comprises following processing step:
(1) step: Xylo-Mucine, tensio-active agent and water are mixed according to weight part, stir at normal temperatures 12h, the rear standing 24h that stirs makes component A;
(2) step: component A and B component are proportionally mixed, and at airtight isolated air, stirring velocity is to stir under the condition of 4000r/min, makes foamed material; Wherein the mixing temperature of component A is 21 ℃, and the temperature of B component is 29.4 ℃;
(3) step: (2) foamed material that makes of step is delivered to the continuous foaming machine of bubble carries out foamable reaction, making the foaming bubble continuous;
(4) step: the bubble silk floss that will foam is delivered to dryer and carries out drying and processing, makes the hydrophilic polyurethane bubble continuous, and described drying and processing adopts high frequency or microwave to carry out drying and processing, and frequency is 130KWh, drying time 5min.
Embodiment 4.
A kind of hydrophilic polyurethane bubble is continuous, it is comprised of component A and the B component ratio according to 3:1, described component A comprises the Xylo-Mucine of 2 weight parts, the tensio-active agent of 0.8 weight part, the water of 91 weight parts, described B component is polyurethane prepolymer, and the tensio-active agent of the present embodiment is PO-EO-vinyl diamine multipolymer.
The continuous foam process of hydrophilic polyurethane bubble of the present embodiment is no longer given unnecessary details at this with embodiment 3.
Embodiment 5.
A kind of hydrophilic polyurethane bubble is continuous, and it is comprised of component A and the B component ratio according to 2:1, and described component A comprises the Xylo-Mucine of 3 weight parts, the tensio-active agent of 1.4 weight parts, the water of 92 weight parts, and described B component is polyurethane prepolymer.
The continuous foam process of hydrophilic polyurethane bubble of the present embodiment is no longer given unnecessary details at this with embodiment 3.
Embodiment 6.
A kind of hydrophilic polyurethane bubble is continuous, and it is comprised of component A and the B component ratio according to 2.5:1, and described component A comprises the Xylo-Mucine of 3 weight parts, the tensio-active agent of 18 weight parts, the water of 94 weight parts, and described B component is polyurethane prepolymer.The chemical composition of the tensio-active agent of the present embodiment is quadrol, ethyl compound and propylated compound.
The continuous foam process of hydrophilic polyurethane bubble of the present embodiment is no longer given unnecessary details at this with embodiment 3.
Hydrophilic polyurethane that Application Example 1 to embodiment 6 makes bubble silk floss carry out the anti-microbial property process of the test and result as follows:
(1) test bacterial classification: intestinal bacteria, streptococcus aureus, aspergillus niger, penicillium funiculosum, Chaetomium globosum, viride, Aureobasidium pullulans.
(2) experimental result:
Table 1: antibacterium test
| Project | Commercially available contrast bubble is continuous | Bubble of the present invention is continuous |
| Sterilising method | 121℃、15min | 121℃、15min |
| Culture condition/time | 37℃、48h | 37℃、48h |
| Duration of contact | 37℃、24h | 37℃、24h |
| E. coli concentration (cfu/ml) | 3.60*10 6 | 3.60*10 6 |
| Streptococcus aureus concentration (cfu/ml) | 1.35*10 6 | 1.35*10 6 |
| With the elutriant bacterial concentration (cfu/ml) of Escherichia coli bacteria liquid after contacting 24h under 37 ℃ of conditions | 6.00*10 6 | ＜15 |
| With the elutriant bacterial concentration (cfu/ml) of streptococcus aureus bacterium liquid after contacting 24h under 37 ℃ of conditions | 7.76*10 7 | ＜10 |
| The antibacterium rate | ———— | ＞99.99% |
Table 2: antifungal test
| Project | Commercially available contrast bubble is continuous | Bubble of the present invention is continuous |
| Sterilising method | 121℃、15min | 121℃、15min |
| Culture condition/time | 28 ℃, humidity were greater than 85%, 28 day | 28 ℃, humidity were greater than 85%, 28 day |
| Mould (aspergillus niger, penicillium funiculosum, Chaetomium globosum, viride, Aureobasidium pullulans) mixes spore suspension concentration (spores/ml) | 6.85*10 5 | 6.85*10 5 |
| Sample mildew grade | 3 | 1 |
Annotate: 0 grade is not long, and namely lower observation of microscope (amplifying 50 times) has no growth;
The growth of 1 grade of vestige, i.e. naked eyes visible growth, but the growth area coverage is less than 10%;
2 grades the growth area coverage greater than 10% less than 30%;
3 grades the growth area coverage greater than 30% less than 60%;
4 grades the growth area coverage greater than 60% to all covering with.
Test-results shows: bubble of the present invention is continuous has obvious bacteriostatic action to intestinal bacteria, streptococcus aureus, and antibiotic rate reaches 99.99%, and fungistatic effect is obvious, can effectively stop bacteria breed; Inhibition to moulds such as aspergillus niger, penicillium funiculosum, Chaetomium globosum, viride, Aureobasidium pullulans is obvious, be rarely seen vestige growth after 28 ℃, humidity are cultivated 28 days under greater than 85% condition in temperature, good antimicrobial effect can guarantee the healthy of human consumer, and is easy to utilize.
Should be noted that at last; above embodiment is only in order to illustrate technical scheme of the present invention; but not limiting the scope of the invention; although with reference to preferred embodiment, the present invention has been done to explain; those of ordinary skill in the art is to be understood that; can modify or be equal to replacement technical scheme of the present invention, and not break away from essence and the scope of technical solution of the present invention.
Claims (10)
1. hydrophilic polyurethane bubble is continuous, and it is comprised of component A and the B component ratio according to 1.5:1～3:1, it is characterized in that, described component A is comprised of the component of following weight part:
1～5 part of Xylo-Mucine
0.5～2 part, tensio-active agent
90～95 parts, water,
Described B component is polyurethane prepolymer.
2. hydrophilic polyurethane bubble according to claim 1 is continuous, it is characterized in that, described component A is comprised of the component of following weight part:
1～3 part of Xylo-Mucine
1～2 part, tensio-active agent
90～93 parts, water.
3. hydrophilic polyurethane bubble according to claim 1 is continuous, it is characterized in that, described component A is comprised of the component of following weight part:
3～5 parts of Xylo-Mucines
0.5～1 part, tensio-active agent
93～95 parts, water.
4. the described hydrophilic polyurethane bubble of according to claim 1 to 3 any one is continuous, it is characterized in that, described tensio-active agent is nonionic surface active agent.
5. the continuous foam process of the described hydrophilic polyurethane bubble of claim 1 to 4 any one, is characterized in that, it comprises the following steps:
(1) step: component A and B component according to the weight part mixing and stirring, are made foamed material;
(2) step: (1) foamed material that makes of step is delivered to the continuous foaming machine of bubble carries out foamable reaction, making the foaming bubble continuous;
(3) step: the bubble silk floss that will foam is delivered to dryer and carries out drying and processing, makes the hydrophilic polyurethane bubble continuous.
6. the continuous foam process of hydrophilic polyurethane bubble according to claim 5, is characterized in that, the preparation method of component A is: according to weight part mix and blend 10～15h, rear standing 20～25h stirs with Xylo-Mucine, tensio-active agent and water.
7. the continuous foam process of hydrophilic polyurethane bubble according to claim 5, is characterized in that, in described (1) step, component A and B component stir under the condition of airtight isolated air, and stirring velocity is 3000～5000r/min.
8. the continuous foam process of hydrophilic polyurethane bubble according to claim 7, is characterized in that, in described (1) step, the temperature of component A is 18～24 ℃, and the temperature of B component is 27～32 ℃.
9. the continuous foam process of hydrophilic polyurethane bubble according to claim 5, is characterized in that, in described (3) step, adopts high frequency or microwave to carry out drying and processing, and frequency is 100～150KWh, drying time 3～8min.
10. the continuous foam process of hydrophilic polyurethane bubble according to claim 9, is characterized in that, in described (3) step, the oven dry frequency is 130KWh, drying time 5min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105829055A CN103087502A (en) | 2012-12-28 | 2012-12-28 | Hydrophilic polyurethane foamed plastic and foaming technique |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105829055A CN103087502A (en) | 2012-12-28 | 2012-12-28 | Hydrophilic polyurethane foamed plastic and foaming technique |
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| CN103087502A true CN103087502A (en) | 2013-05-08 |
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| CN2012105829055A Pending CN103087502A (en) | 2012-12-28 | 2012-12-28 | Hydrophilic polyurethane foamed plastic and foaming technique |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106497007A (en) * | 2016-10-17 | 2017-03-15 | 东莞泰康泡绵有限公司 | A kind of high water absorption sex vesicle silk floss and its foam process |
| CN106619353A (en) * | 2016-10-17 | 2017-05-10 | 东莞泰康泡绵有限公司 | Skin-care cleansing foam and foaming process thereof |
| CN107090070A (en) * | 2017-05-11 | 2017-08-25 | 东莞泰康泡绵有限公司 | A kind of hydrophilic polyurethane bubble silk floss and preparation method thereof |
| CN109456462A (en) * | 2018-10-29 | 2019-03-12 | 中海油能源发展股份有限公司 | For the composition of polyurethane foam, polyurethane foam and preparation method and purposes |
| CN115322321A (en) * | 2022-08-03 | 2022-11-11 | 佳化化学科技发展（上海）有限公司 | Hydrophilic flexible foam and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106497007A (en) * | 2016-10-17 | 2017-03-15 | 东莞泰康泡绵有限公司 | A kind of high water absorption sex vesicle silk floss and its foam process |
| CN106619353A (en) * | 2016-10-17 | 2017-05-10 | 东莞泰康泡绵有限公司 | Skin-care cleansing foam and foaming process thereof |
| CN107090070A (en) * | 2017-05-11 | 2017-08-25 | 东莞泰康泡绵有限公司 | A kind of hydrophilic polyurethane bubble silk floss and preparation method thereof |
| CN109456462A (en) * | 2018-10-29 | 2019-03-12 | 中海油能源发展股份有限公司 | For the composition of polyurethane foam, polyurethane foam and preparation method and purposes |
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| CN115322321B (en) * | 2022-08-03 | 2024-03-12 | 佳化化学科技发展（上海）有限公司 | Hydrophilic soft foam and preparation method thereof |
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Application publication date: 20130508 |