CN105442342A - Plant antibacterial and odor-resistant type polyurethane artificial leather and preparation method thereof - Google Patents
Plant antibacterial and odor-resistant type polyurethane artificial leather and preparation method thereof Download PDFInfo
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- CN105442342A CN105442342A CN201510860125.6A CN201510860125A CN105442342A CN 105442342 A CN105442342 A CN 105442342A CN 201510860125 A CN201510860125 A CN 201510860125A CN 105442342 A CN105442342 A CN 105442342A
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Abstract
The invention discloses plant antibacterial and odor-resistant type polyurethane artificial leather and a preparation method thereof. The artificial leather comprises components in parts by weight as follows: 50-65 parts of waterborne polyurethane resin, 1.5-2.5 parts of a leveling agent, 0.6-1.5 parts of a defoaming agent, 2-8 parts of nano plant antibacterial and odor-resistant powder, 1.0-3.5 parts of a thickener and 20-40 parts of water. The nano plant antibacterial and odor-resistant powder is prepared from cheap and easily-available purslane, tea trees, cactuses, platycladus orientalis and the like with an infrared dehydration technology and a nano grinding production technology. The artificial leather has efficient and durable sterilization, antibacterial and odor resisting functions and also has the good leather-simulating property and good moisture-permeable and breathable properties.
Description
Technical field
The present invention relates to polyurethane artificial leather technical field, disclose a kind of plants antimicrobial deodorization polyurethane artificial leather and preparation method thereof especially.
Background technology
There is virus and bacterium everywhere in our life air, there is threat to the health of human body in them; Virus and bacterium also can spread disease in addition, and then affect the healthy of people; Unpleasant peculiar smell is also had when bacterium or virus corruption.Polyurethane artificial leather is due to its excellent various performances, and comparatively environmental protection, its range of application is widely.But artificial leather material especially contacts the various materials of skin, can easily nourish bacterium due to the sweat etc. of human body, easily have peculiar smell, smelly when bacterial putrefaction, let us mood is very uncomfortable, also have simultaneously aforesaid exist health threaten.
Yantai Wan Hua company discloses a kind of inorganic nanometer powder material modification polyurethane leather in patent CN1519274A, this material contains polyurethane resin solution and inorganic nanometer powder material, and this leather material has the harmful substance air purification functions such as antibacterial, mildew-resistant, decomposing formaldehyde.But this polyurethane leather is solvent borne polyurethane, use the feature of environmental protection inadequate, toxicity is comparatively large, and the Durability of antimicrobial effect of inorganic nanometer powder material can be not enough.
Although the technology of waterborne polyurethane artificial leather is at development, can high-efficient and lasting antibiotic and sterilizing deodorization, high comprehensive performance waterborne polyurethane artificial leather but comparatively rare.Therefore, a kind of safety and environmental protection, minimum to health injury, efficiently and sterilization is enduringly antibacterial, deodorization and the polyurethane artificial leather of high comprehensive performance is badly in need of.
Summary of the invention
The object of the present invention is to provide a kind of plants antimicrobial deodorization polyurethane artificial leather, it contains the anti-ammonia bicarbonate of nanometer plants antimicrobial made through infrared radiation dewatering technology and nano-milled production technology.This polyurethane artificial leather safety and environmental protection, can antibacterial, the deodorization of efficient and lasting sterilization.
Another object of the present invention is a kind of method providing plants antimicrobial deodorization polyurethane artificial leather.This preparation method is simple to operate, can industrialization produce.
The invention provides a kind of plants antimicrobial deodorization polyurethane alkene artificial leather, it is containing, for example the component of lower weight portion: waterborne polyurethane resin 50-65 part, levelling agent 1.5-2.5 part, defoamer 0.6-1.5 part, nanometer plants antimicrobial anti-ammonia bicarbonate 2-8 part, thickener 1.0-3.5 part, water 20-40 part.
Described waterborne polyurethane resin is selected from conventional various waterborne polyurethane resins, and being generally polyaminoester emulsion, can be aliphatic polyurethane and/or aromatic urethane.By the polyalcohol in its synthesis material, can be PAUR, or EU, or polycarbonate polyurethane.By the isocyanates in its synthesis material, can be toluene di-isocyanate(TDI) TDI type, methyl diphenylene diisocyanate MDI type, hexamethylene diisocyanate HDI type, isophorone diisocyanate IPDI type.
For the anti-ammonia bicarbonate of nanometer plants antimicrobial, preferably, it is two or more that it contains in nanometer purslane powder, nanometer tea tree powder, nanometer cactus powder, nanometer arbor-vitae powder, is made up through infrared radiation dewatering technology and nanometer production technology of corresponding plant.
In the described anti-ammonia bicarbonate of nanometer plants antimicrobial, each parts by weight of raw materials proportioning is nanometer purslane powder: nanometer tea tree powder: nanometer cactus powder: nanometer arbor-vitae powder=0-5: 1-3: 1-3: 0-2.Better, the particle diameter of nano powder is 40-100nm.
Above-mentioned several plant abounds with in China various places, and cost is comparatively cheap.
Herba portulacae is seen everywhere in China, and its effect is numerous: energy expelling parasite at home, and clearing heat and detoxicating, the beneficial gas qi-restoratives of edible energy can be used for treating various disease conditions.Alcohol extract in Herba portulacae has inhibitory action highly to Escherichia coli, proteus, shigella dysenteriae, typhoid fever, paratyphosum Bacterium, also inhibitory action is in various degree had to staphylococcus aureus, fungi such as Austria big belly microspore Du tinea bacterium, tubercle bacillus, can be used for the auxiliary curing of various inflammation, have the title of " natural antibiotics ".
Containing tea tree ethereal oil in tea tree, it has effect of bactericidal antiphlogistic, and tea tree ethereal oil often uses in a lot of skin care products.Australia original inhabitants are very early with tea tree leaf treatment wound, and venomous snake bite also can be used as antidote, and world war also once used as antiphlogistic.Tea tree has remarkable antibiotic property.
When carrying out Bacteria Culture experiment with the abstract of cactus herb, it is the most remarkable to staphylococcus aureus inhibition, and also has the inhibitory action of height to 18 each resistance to penicillin systems of this bacterium, and it also has height inhibitory action to hay bacillus in addition.Cactus is also commonly used to sterilizing in daily life.
Leaf and the branch of arbor-vitae are used as medicine, can astringing to arrest bleeding, diuresis stomach invigorating, the loose stasis of blood of removing toxic substances; Seed have calm the nerves, the effect of strengthening by means of tonics.The effects such as arbor-vitae essential oil has anti-inflammation, convergence, diuresis, softness, reduces phlegm, killing fungus.
For levelling agent, it can impel polyurethane resin in drying and forming-film process, form smooth, smooth, a uniform film.Common kind such as acrylic compounds levelling agent, silicone based levelling agent and/or fluorocarbons class levelling agent, most preferably acrylic compounds levelling agent can be adopted.
For defoamer, it can froth breaking fast, but does not affect the fundamental property of bubble system, usually can take conventional kind, such as mineral oils, silicone based, polyethers.Preferred organic silicon defoamer.
For thickener, it is also a kind of auxiliary rheological agents, can prevent polyurethane resin from occurring sagging phenomenon, gives mechanical performance and the bin stability of resin combination excellence simultaneously.Conventional cellulose family can be adopted, polyacrylate and association type polyurethanes thickener, most preferably aqueous polyurethane thickener.
According to the needs of waterborne polyurethane artificial leather combination property, the auxiliary agent of other routines can also be added, such as, can also add fire retardant, filler, colorant etc.
Plants essential oil or its extract, be the mode that usually adopts of plant-related products on the market, but it has volatility, persistence is inadequate.Infrared dehydration technique is utilized through groping discovery, after the clean sections such as the fresh blade of above each plant, limb root system through infrared radiation heating quick dewatering drying, the effect that contained moisture reduces rapidly and plant leaf, various essential oil in limb and loss of effective components are very little can be realized in blade, limb.The sterilization antibiotic effect level of plant so just can be kept efficient and lasting.
Infrared radiation dewatering technology is conducive to essential oil and active ingredient and continues to remain in the blade of plant, limb and root system, then grind through nanometer pulverization milling apparatus, finally obtain nanometer Herba portulacae powder, nanometer tea tree powder, nanometer cactus powder, the nanometer arbor-vitae powder with Nano Particle.Two or more in these nanometer powders are mixed by a certain percentage, is refined into the anti-ammonia bicarbonate of nanometer plants antimicrobial and adds in artificial polyvinyl chloride leather, artificial leather can be made to have high-efficiency continuous sterilization, antibacterial, deodorization effect.
The sterilization of polyurethane artificial leather of the present invention, anti-microbial property reach 99% of I level in antibiotic plastic, and the durability of its antibacterial and mouldproof also reaches 95% of I level in antibiotic plastic.
The present invention also provides a kind of method preparing above-mentioned plants antimicrobial deodorization polyurethane artificial leather, the method comprises the following steps: 1) prepare aqueous polyurethane slurry, add waterborne polyurethane resin and water in a reservoir and stir, add the anti-ammonia bicarbonate of nanometer plants antimicrobial, levelling agent again, stir in high speed agitator, add defoamer again, after stirring, add thickener adjusting viscosity again; 2), after base cloth is fully wetting in finishing agent, dry; 3) in coating machine, the slurry prepared is applied to Ji Bushang; 4) the base cloth scribbling slurry is dried, obtain semi-finished product; 5) the semi-finished product washing will obtained, obtains final artificial leather product.
Aforementioned base cloth treating agent contains coagulating agent and deionized water, and the two weight proportion is 1: 30-300.
Preferably, after adding the anti-ammonia bicarbonate of nanometer plants antimicrobial, stir 20-40 minute, after adding defoamer, stir 5-15 minute.The preferred 80-120 DEG C of Ji Bu process post-baking temperature, after coating sizing-agent, the preferred 100-135 DEG C of base cloth bake out temperature.
In above-mentioned preparation technology, first adopt coagulating agent process base cloth, then aqueous polyurethane slurry is added, high-temperature process after washing removes coagulating agent, polyurethane can be made in base cloth to form three-dimensional net structure, coagulating agent leaves more uniform aperture after removing, and make this polyurethane artificial leather product simulation skin good, moisture-penetrable ventilated property is good.And in conjunction with the use of auxiliary agent, this artificial leather product surfacing, uniform foam cell, its function admirable.
Beneficial effect of the present invention has:
1: in raw material, with the addition of the anti-ammonia bicarbonate of nanometer plants antimicrobial, its environmental protection, with low cost, and polyurethane artificial leather can be made efficient and lasting sterilization is antibacterial, deodorization.
2: the combination adopting the auxiliary agent such as levelling agent, defoamer, and in conjunction with specific preparation technology, polyurethane artificial leather artificial leather can be made good, moisture-penetrable ventilated property is good.
Detailed description of the invention
Can be well understood to the present invention further by specific embodiments of the invention given below and comparing embodiment, but they not limitation of the invention.The part do not described in detail in specific embodiment and comparing embodiment adopts prior art, known technology means and industry standard to obtain.
Except as otherwise noted, the number adopted in the present invention is weight portion.
the preparation example of the anti-ammonia bicarbonate of nanometer plants antimicrobial
By the clean section such as fresh blade, limb, root system of purslane, tea tree, cactus, arbor-vitae, carry out infrared radiation heating quick dewatering drying, after moisture contained in blade, limb root system reduces drying rapidly, carry out nano-milled production technology to grind, be there is the Plant Powder of Nano Particle accordingly.Then these nano level Plant Powders are mixed and made into the anti-ammonia bicarbonate of nanometer plants antimicrobial by particular types, weight ratio.
embodiment 1
The nanometer cactus powder of the nanometer tea tree powder of 40nm, 60nm is adopted to make nanometer plants antimicrobial anti-ammonia bicarbonate at 1: 1 by weight.
By weight, the raw material of polyurethane artificial leather is: polyether type aqueous polyurethane resin 50 parts, esters of acrylic acid levelling agent 1.5 parts, silicone based defoamer 0.6 part, the anti-ammonia bicarbonate of nanometer plants antimicrobial 2 parts, aqueous polyurethane thickener 1.0 parts, 20 parts, water.
Artificial leather preparation technology is as follows:
1) aqueous polyurethane slurry is prepared, add waterborne polyurethane resin and water in a reservoir and stir, then adding the anti-ammonia bicarbonate of nanometer plants antimicrobial, levelling agent, stirring 20 minutes in high speed agitator, add defoamer again, stir and add thickener adjusting viscosity again after 5 minutes; 2) by base cloth after coagulating agent and water weight ratio are fully wetting in the finishing agent of 1: 30, dry in the baking oven of 80 DEG C; 3) in coating machine, the slurry prepared is applied to Ji Bushang; 4) Ji Bu scribbling slurry is dried in 100 DEG C of baking ovens, obtain semi-finished product; 5) the semi-finished product washing will obtained, obtains final artificial leather product.
embodiment 2
The nanometer arbor-vitae powder of the nanometer cactus powder of the nanometer tea tree powder of the nanometer purslane powder of 40nm, 50nm, 60nm, 80nm is adopted to make nanometer plants antimicrobial anti-ammonia bicarbonate at 1: 2: 2: 1 by weight.
By weight, the raw material of polyurethane artificial leather is: polyester-type waterborne polyurethane resin 60 parts, silicone based levelling agent 2 parts, silicone based defoamer 1 part, the anti-ammonia bicarbonate of nanometer plants antimicrobial 6 parts, aqueous polyurethane thickener 2.5 parts, 30 parts, water.
The preparation technology of artificial leather is substantially with embodiment 1, and the bake out temperature after difference is only the process of base cloth is 100 DEG C, after coating sizing-agent, and base cloth bake out temperature is 120 DEG C.
embodiment 3
The nanometer cactus powder of the nanometer tea tree powder of the nanometer purslane powder of 70nm, 80nm, 100nm is adopted to make nanometer plants antimicrobial anti-ammonia bicarbonate at 1: 3: 2 by weight.
By weight, the raw material of polyurethane artificial leather is: polycarbonate waterborne polyurethane resin 65 parts, silicone based levelling agent 2.5 parts, silicone based defoamer 1.5 parts, the anti-ammonia bicarbonate of nanometer plants antimicrobial 8 parts, aqueous polyurethane thickener 3.5 parts, 40 parts, water.
The preparation technology of artificial leather is substantially with embodiment 1, and after difference is only to add the anti-ammonia bicarbonate of nanometer plants antimicrobial, mixing time is 35 minutes, after adding defoamer, stirs 15 minutes.
The bacteria resistance of polyurethane artificial leather prepared by above-described embodiment 1-3 is respectively 99.1%, 99.4%, 99.6%, and antibacterium durability is respectively 95.5%, 95.8%, 95.6%.Polyurethane artificial leather prepared by the present invention is described, owing to the addition of the anti-ammonia bicarbonate of nanometer plants antimicrobial, there is efficient and lasting anti-microbial property.
Above disclosedly be only the preferred embodiments of the present invention, certainly can not limit the interest field of the present invention with this, therefore according to the equivalent variations that the present patent application the scope of the claims is done, still belong to the scope that the present invention is contained.
Claims (10)
1. a plants antimicrobial deodorization polyurethane artificial leather, is characterized in that: the component comprising following weight portion: waterborne polyurethane resin 50-65 part, levelling agent 1.5-2.5 part, defoamer 0.6-1.5 part, nanometer plants antimicrobial anti-ammonia bicarbonate 2-8 part, thickener 1.0-3.5 part, water 20-40 part.
2. plants antimicrobial deodorization polyurethane artificial leather according to claim 1, it is characterized in that: it is two or more that the described anti-ammonia bicarbonate of nanometer plants antimicrobial contains in nanometer purslane powder, nanometer tea tree powder, nanometer cactus powder, nanometer arbor-vitae powder, is made up through infrared radiation dewatering technology and nano-milled production technology of corresponding plant.
3. plants antimicrobial deodorization polyurethane artificial leather according to claim 2, is characterized in that: in the described anti-ammonia bicarbonate of nanometer plants antimicrobial, each parts by weight of raw materials proportioning is nanometer purslane powder: nanometer tea tree powder: nanometer cactus powder: nanometer arbor-vitae powder=0-5: 1-3: 1-3: 0-2; The particle diameter of nano powder is 40-100nm.
4. plants antimicrobial deodorization polyurethane artificial leather according to claim 1, is characterized in that: described waterborne polyurethane resin is aliphatic polyurethane and/or aromatic urethane.
5. plants antimicrobial deodorization polyurethane artificial leather according to claim 1, is characterized in that: described levelling agent be selected from acrylic compounds levelling agent, silicone based levelling agent, fluorocarbons class levelling agent more than one.
6. plants antimicrobial deodorization polyurethane artificial leather according to claim 1, is characterized in that: described defoamer is selected from mineral oils, silicone based, more than one in polyethers.
7. plants antimicrobial deodorization polyurethane artificial leather according to claim 1, is characterized in that: also comprise in fire retardant, filler, colorant more than one.
8. the preparation method of the plants antimicrobial deodorization polyurethane artificial leather according to any one of claim 1-7, it is characterized in that: comprise the following steps: 1) prepare aqueous polyurethane slurry, add waterborne polyurethane resin and water in a reservoir and stir, add the anti-ammonia bicarbonate of nanometer plants antimicrobial, levelling agent again, stir in high speed agitator, add defoamer again, after stirring, add thickener adjusting viscosity again; 2), after base cloth is fully wetting in finishing agent, dry; 3) in coating machine, the slurry prepared is applied to Ji Bushang; 4) the base cloth scribbling slurry is dried, obtain semi-finished product; 5) the semi-finished product washing will obtained, obtains final artificial leather product.
9. according to Claim 8 described in preparation method, it is characterized in that: described base cloth treating agent contains coagulating agent and deionized water, the two weight proportion is 1: 30-300.
10. according to Claim 8 described in preparation method, it is characterized in that: after adding the anti-ammonia bicarbonate of nanometer plants antimicrobial, stir 20-40 minute, after adding defoamer, stir 5-15 minute.The preferred 80-120 DEG C of Ji Bu process post-baking temperature, after coating sizing-agent, the preferred 100-135 DEG C of base cloth bake out temperature.
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| CN107383315A (en) * | 2017-08-10 | 2017-11-24 | 山东泽辉新材料股份有限公司 | A kind of environment-friendly type waterborne polyurethane for synthetic leather and preparation method |
| CN107383326A (en) * | 2017-08-10 | 2017-11-24 | 山东泽辉新材料股份有限公司 | A kind of novel synthetic leather aqueous polyurethane and preparation method |
| CN109208341A (en) * | 2018-09-06 | 2019-01-15 | 福建隆上超纤有限公司 | A kind of preparation method of abrasion-resistance water polyurethane artificial leather |
| CN113024759A (en) * | 2021-04-02 | 2021-06-25 | 浙江高裕家居科技股份有限公司 | Plant polyurethane foam material and preparation method thereof |
| CN115175964A (en) * | 2019-07-12 | 2022-10-11 | 阿德里亚诺迪马蒂有限公司 | Method for preparing a preparation based on a polyurethane and Opuntia Ficus lndica mucilage with application in the manufacture of artificial skin-like flexible coatings |
| CN115961482A (en) * | 2023-02-16 | 2023-04-14 | 中国第一汽车股份有限公司 | Bio-based PU leather, preparation method and application thereof, and PU leather molded product |
| DE102021006418A1 (en) | 2021-12-30 | 2023-07-06 | Stitch & Trim GmbH | Imitation leather, semi-finished imitation leather and method of manufacturing an imitation leather |
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| CN107383315A (en) * | 2017-08-10 | 2017-11-24 | 山东泽辉新材料股份有限公司 | A kind of environment-friendly type waterborne polyurethane for synthetic leather and preparation method |
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| CN109208341A (en) * | 2018-09-06 | 2019-01-15 | 福建隆上超纤有限公司 | A kind of preparation method of abrasion-resistance water polyurethane artificial leather |
| CN115175964A (en) * | 2019-07-12 | 2022-10-11 | 阿德里亚诺迪马蒂有限公司 | Method for preparing a preparation based on a polyurethane and Opuntia Ficus lndica mucilage with application in the manufacture of artificial skin-like flexible coatings |
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| CN113024759A (en) * | 2021-04-02 | 2021-06-25 | 浙江高裕家居科技股份有限公司 | Plant polyurethane foam material and preparation method thereof |
| DE102021006418A1 (en) | 2021-12-30 | 2023-07-06 | Stitch & Trim GmbH | Imitation leather, semi-finished imitation leather and method of manufacturing an imitation leather |
| CN115961482A (en) * | 2023-02-16 | 2023-04-14 | 中国第一汽车股份有限公司 | Bio-based PU leather, preparation method and application thereof, and PU leather molded product |
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