CN105780453A - Flame-proof finishing agent based on imvite/DNA hydrosol as well as preparation method and application thereof - Google Patents

Flame-proof finishing agent based on imvite/DNA hydrosol as well as preparation method and application thereof Download PDF

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Publication number
CN105780453A
CN105780453A CN201610176164.9A CN201610176164A CN105780453A CN 105780453 A CN105780453 A CN 105780453A CN 201610176164 A CN201610176164 A CN 201610176164A CN 105780453 A CN105780453 A CN 105780453A
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montmorillonite
dna
finishing agent
hydrosol
weight
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CN201610176164.9A
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CN105780453B (en
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马辉
张焕侠
曹建达
吴雯
皮婷婷
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Jiaxing University
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Jiaxing University
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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/77Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof
    • D06M11/79Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof with silicon dioxide, silicic acids or their salts
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/322Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
    • D06M13/35Heterocyclic compounds
    • D06M13/355Heterocyclic compounds having six-membered heterocyclic rings
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/02Natural fibres, other than mineral fibres
    • D06M2101/04Vegetal fibres
    • D06M2101/06Vegetal fibres cellulosic
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16Synthetic fibres, other than mineral fibres
    • D06M2101/30Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M2101/32Polyesters

Abstract

The invention discloses a flame-proof finishing agent based on imvite/DNA hydrosol which is prepared from the following ingredients in parts by weight: 1 part of imvite, 0.1-10 parts of DNA and 0.1-10 parts of a coupling reagent. The preparation method of the flame-proof finishing agent comprises the following steps of: performing hydrogen peroxide treatment, centrifugal separation and sodium carbonate solution treatment on the imvite so as to obtain a peeled and separated imivite sample; dispersing the peeled and separated imivite sample into ethanol water, and then adding a coupling agent so as to obtain modified imvite; and mixing the modified imvite with the DNA so as to prepare a composite hydrosol. The prepared composite hydrosol serving as a flame-proof treatment agent is applied to after finishing of polyester-cotton fabric; imvite lamellar crystal in the composite hydrosol is assembled on the surface of the polyester-cotton fabric, so that the finished polyester-cotton fabric has a certain flame-proof function. The flame-proof finishing agent is capable of reducing the flame retardant addition of a flame-proof system, and ensuring the mechanical properties of materials while ensuring the flame-proof effect.

Description

A kind of based on the montmorillonite/antiflaming finishing agent of the DNA hydrosol, its preparation method and application thereof
Technical field
The present invention relates to function textile field, more specifically to one based on the montmorillonite/antiflaming finishing agent of the DNA hydrosol, its preparation method and application thereof.
Background technology
Polyester cotton is complementary because of its polyester-cotton blend component physicochemical property, the advantage such as not only there is intensity height, wearability is good, color fastness is high, acidproof heat-proof is good, but also there is excellent hygroscopicity, breathability and the soft wearability such as comfortable, it is widely used in apparel industry and furnishing fields.But " wick effect " when polyester-cotton fabric is due to burning is flammable high, once catch fire, it is difficult to extinguish, it is easy to initiation fire, leaving no small potential safety hazard in daily life, thus application is restricted.According to burning and the fire retardant mechanism of cotton fiber and terylene, reach fire-retardant purpose generally by fabric is carried out fire-retardant post processing.
External polyester cotton fire retardant can be attributed to following two big classes: phosphorus-nitrogen containing based flame retardant is serial, add the fire retardant series of halogen (bromine) in phosphorus-nitrogen containing fire retardant and containing antimony and bromine-containing compound fire retardant series.What phosphorus-nitrogen containing flame retardant was conventional has the preshrunk thing of N-methylol compound (such as DMDHEU), tetra methylol chlorination squama (THPC), trihydroxy methyl melamine (TMM), trimethyl phosphate (TMP), THPN(tetra methylol squama salt THPS and ammonia) etc..Arranged 50/50 polyester cotton by THPN, carbamide and TMM, when applied amount reaches 20~30%, significantly high anti-flammability can be obtained, but now the feel of fabric is slightly hard, it is more difficult to adapt to the instructions for use of each side.Halogenated flame retardant this be currently used more polyester cotton fire retardant, including bromine system and chlorine system, conventional is bromine antimony composite flame-retardant agent.Conventional bromide has decabromodiphenyl oxide, HBCD etc., antimonide to be mainly antimony oxide, antimony pentoxide.The derivant of bromine-containing compound and antimony oxide synergism, employing is padded baking arrangement and is obtained LOI>=27%, and<150cm, after flame time≤5s, the fabric of the time of glowing≤5s, have good flame retardant effect to char length.But the amount of being fuming is big when the shortcoming of these fire retardants is burning, produce poisonous, be harmful to, have and strong arrange corrosive halogenide.
For a long time, the polyester-cotton fabric flame-proof finishing process technology developed and its flame retardant performance are difficult to meet the requirement of some purposes.Fabric feeling or mechanical strength after Problems existing mainly arrangement are not fully up to expectations, next to that production ecology aspect also needs to improve.The present patent application is based on the requirement of environmental conservation and sustainable development; halogen-free flame-retardant system has boundless development prospect; naturally occurring book clay-montmorillonite belongs to inorganic nano fire retardant; in the earth's crust, distributed pole is wide; there is excellent mechanical property, gas barrier and fire retarding effect, completely can as fire retardant used for textiles of new generation.
Summary of the invention
For the deficiencies in the prior art, the present invention proposes a kind of antiflaming finishing agent based on montmorillonite/DNA hydrosol, its preparation method and the application in polyester-cotton fabric Final finishing thereof, this antiflaming finishing agent can reduce the fire retardant addition of flame-retardant system, ensures the mechanical property of material while ensureing flame retardant effect.
This invention address that technical problem be the technical scheme is that a kind of antiflaming finishing agent based on montmorillonite/DNA hydrosol, described antiflaming finishing agent mainly includes following components: montmorillonite, DNA, coupling agent;In parts by weight, in described antiflaming finishing agent, the content of each component is as follows: the montmorillonite of 1 weight portion, the DNA of 0.1~10 weight portion, 0.1~10 weight portion coupling agent.
Further, described montmorillonite is commercial montmorillonite through stripping point, modified obtains nano imvite;The average wafer thickness of described modified nano imvite is less than 25nm.Modified nano imvite lamellar spacing becomes less, fabric face can be more entirely coated on after arrangement, improve the montmorillonite platelet distributing homogeneity at fabric face, it is more beneficial for the lifting of montmorillonite coating film and fiber combining power, when flame contact polyester-cotton fabric, it had certain anti-flaming thermal-insulation effect.
Further, described coupling agent is at least one in silane coupler or titanate coupling agent.The effect of coupling agent is to improve the interface interaction between inorganic matter and Organic substance, thus being greatly improved the performance of composite, such as physical property, electrical property, hot property, optical property etc..
Preferably, described silane coupler is KH550, KH560, and described titanate coupling agent is HY311.
DNA, also known as DNA (deoxyribonucleic acid), is a kind of molecule, and duplex structure is made up of deoxyribonucleotide (composition is: deoxyribose, phosphoric acid and four kinds of nitrogenous bases).DNA is double-spiral structure, is referred to as in water conjunction type DNA, the DNA of Type B containing substantial amounts of amino, carboxyl isopolarity group, forms substantial amounts of hydrogen bond in the modified montmorillonoid cohesive process with fabric.In DNA molecular, substantial amounts of phosphorus, nitrogen element play the effect of cooperative flame retardant when being subject to heat and attacking, and in phosphorus-nitrogen compound system, phosphorus, as acid source, can decomposite the heat insulation layer of charcoal of promotion and be formed at polymer surfaces in high-temperature heating situation;Nitrogen, then as source of the gas, discharges non-combustible gas in thermal decomposition process, above-mentioned layer of charcoal can be made expanded foamed, and ultimately form foamed char.Foamed char can effectively insulation mass transter and heat exchange, thus reaching good flame retardant effect.
The preparation method of a kind of antiflaming finishing agent based on montmorillonite/DNA hydrosol, described preparation method mainly comprises the steps that
1) montmorillonite of 1 weight portion is added in the hydrogen peroxide of 30% of 10~100 weight portions, 24~100h is reacted at-10~30 DEG C, it is centrifuged 5~60 minutes when 3000~9000r/min, isolated precipitate is dispersed in the sodium carbonate liquor of 5~30% again, stirring 2~20h, supersound process 0.5~10 hour under 5~50KHz, centrifugal when 3000~9000r/min, obtain the montmorillonite sample of stripping point;
2) by 1) in obtain 1 weight portion stripping point montmorillonite be dispersed in 75% ethanol water of 5~150 weight portions, stirring, heating, to 30~80 DEG C, adds the coupling agent of 0.1~10 weight portion, stirring reaction 1~6 hour, obtains modified montmorillonoid sample;
3) by 2) in the DNA mixing of the modified montmorillonoid of 1 weight portion that obtains and 0.1~10 weight portion, stir 0.5~6h at 0~60 DEG C, prepare montmorillonite and DNA Compound Water colloidal sol, be the antiflaming finishing agent based on montmorillonite/DNA hydrosol.
The application of a kind of antiflaming finishing agent based on montmorillonite/DNA hydrosol, described antiflaming finishing agent is mainly used in the finishing process of polyester-cotton fabric.The application of described antiflaming finishing agent mainly comprises the steps that in parts by weight, 1 part of cleaned for acetone polyester-mixed cotton cloth is immersed in 30~150 parts of montmorillonites and DNA Compound Water colloidal sol when some tension, dry at 20~50 DEG C, promote the montmorillonite platelet in Compound Water colloidal sol in polyester fiber surface-assembled, obtain the polyester-cotton fabric with certain anti-flaming function.
The invention has the beneficial effects as follows: that compared with prior art the present invention selects stripping point, modified montmorillonite prepares with DNA a kind of green, the complex sol of environmental protection add coupling agent simultaneously and improve the compound of montmorillonite and DNA;When arranging to polyester-cotton fabric, good flame retardant effect can be reached by less consumption, meet the needs of green finishing agent development, meanwhile, the mechanical impact of material is less, improve flame retardant effect and also can keep the good intensity of fabric simultaneously.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described.In following example, the consumption of each material is all in parts by weight.
Embodiment 1
The montmorillonite of 1 part is scattered in the hydrogen peroxide of 30 part 30%, 72h is stood at 4 DEG C, centrifugal 20min when 5000r/min, isolated precipitate is dispersed in the sodium carbonate liquor of 10% again, stirring 20h, ultrasonic 6h under 20KHz, centrifugal when 6000r/min, obtain the montmorillonite sample of stripping point;The montmorillonite of 1 part of stripping point being dispersed in 75% ethanol water of 50 parts, stir, heating, to 70 DEG C, adds the KH560 silane coupler of 0.1 part, stirring reaction 3h, obtains modified montmorillonoid sample;By the DNA mixing of 1 part of modified montmorillonoid and 2 parts, stir 2h at 60 DEG C, prepare the Compound Water colloidal sol of montmorillonite and DNA.1 part of cleaned for acetone polyester-mixed cotton cloth is immersed in when some tension in 50 parts of Compound Water colloidal sols, dries at 30 DEG C, promote montmorillonite platelet in polyester fiber surface-assembled, obtain the polyester-cotton fabric that Compound Water colloidal sol processes.
Embodiment 2
The montmorillonite of 1 part is scattered in the hydrogen peroxide of 40 part 30%, 72h is stood at 4 DEG C, centrifugal 20min when 5000r/min, isolated precipitate is dispersed in the sodium carbonate liquor of 10% again, stirring 20h, ultrasonic 6h under 20KHz, centrifugal when 6000r/min, obtain the montmorillonite sample of stripping point;The montmorillonite of 1 part of stripping point being dispersed in 75% ethanol water of 50 parts, stir, heating, to 70 DEG C, adds the HY311 coupling agent of 0.2 part, stirring reaction 3h, obtains modified montmorillonoid sample;By the DNA mixing of 1 part of modified montmorillonoid and 2 parts, stir 2h at 60 DEG C, prepare the Compound Water colloidal sol of montmorillonite and DNA.1 part of cleaned for acetone polyester-mixed cotton cloth is immersed in when some tension in 100 parts of Compound Water colloidal sols, dries at 40 DEG C, promote montmorillonite platelet in polyester fiber surface-assembled, obtain the polyester-cotton fabric that Compound Water colloidal sol processes.
Embodiment 3
Being distinctive in that with embodiment 1, being immersed in 100 parts of Compound Water colloidal sols when some tension by 1 part of cleaned for acetone polyester-mixed cotton cloth, all the other steps are all identical with embodiment 1.
Embodiment 4
The montmorillonite of 1 part is scattered in the hydrogen peroxide of 50 part 30%, 72h is stood at 4 DEG C, centrifugal 20min when 5000r/min, isolated precipitate is dispersed in the sodium carbonate liquor of 5% again, stirring 20h, ultrasonic 6h under 20KHz, centrifugal when 6000r/min, obtain the montmorillonite sample of stripping point;The montmorillonite of 1 part of stripping point being dispersed in 75% ethanol water of 100 parts, stir, heating, to 80 DEG C, adds the KH560 silane coupler of 0.2 part, stirring reaction 3h, obtains modified montmorillonoid sample;By the DNA mixing of 1 part of modified montmorillonoid and 2 parts, stir 2h at 60 DEG C, prepare the Compound Water colloidal sol of montmorillonite and DNA.1 part of cleaned for acetone polyester-mixed cotton cloth is immersed in when some tension in 100 parts of Compound Water colloidal sols, dries at 40 DEG C, promote montmorillonite platelet in polyester fiber surface-assembled, obtain the polyester-cotton fabric that Compound Water colloidal sol processes.
Material property sign is carried out for the polyester-cotton fabric of embodiment 4 gained, as follows:
When preparation is all identical with embodiment 4 with postfinishing process condition, test one is the carbonization area before and after the composite finishing agent arrangement of the different montmorillonite content of investigation after polyester-cotton fabric burning, the break-draw that test two is the composite finishing agent arrangement front and back polyester-cotton fabric investigating different montmorillonite content is powerful, and concrete contrast test data are in Table 1, table 2.
Table 1 polyester-cotton fabric is through the char area of different content montmorillonite and DNA assembling after-combustion
From the data of table 1 it can be seen that the char area of the former cloth of polyester-cotton blend is 58.44cm2, cloth specimen damage is more;The fabric char area that 0.1g montmorillonite assembles with 0.2gDNA is 21.59cm2, has good flame retardant effect compared with former cloth;When montmorillonite content progressively increases to 0.5g, 0.9g, char area is reduced to 14.21cm2 and 6.57cm2 respectively, illustrating that the ability of the opposing flame combustion of the fabric through arranging progressively is strengthening, namely the content more high fire-retardance effect of montmorillonite is more good in composite finishing agent within the specific limits.
Table 2 is powerful with the break-draw processing front polyester-cotton fabric after processing
Numbering Montmorillonite content (g) DNA content (g) Average tensile powerful (N) Powerful rate of change (%)
A / / 478.2±5.0 /
C 0.1 0.2 479.4±5.2 0.24%
D 0.5 0.2 501.9±4.9 4.94%
E 0.9 0.2 527.3±4.1 10.25%
From table 2 it can be seen that 0.1g montmorillonite and the 0.2gDNA polyester-cotton fabric assembled are compared to untreated polyester-cotton fabric, powerful not significantly change;When montmorillonite content is gradually increased to 0.5g, 0.9g, the average brute force of polyester-cotton fabric somewhat promotes to some extent.Visible, brute force when fabric is used by the composition of the finishing agent that the present invention explores and technique does not result in too big impact.
Embodiment of above is merely to illustrate the present invention; and it is not limitation of the present invention; those of ordinary skill about technical field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all equivalent technical schemes fall within scope of the invention, and the scope of patent protection of the present invention should be defined by the claims.

Claims (7)

1. the antiflaming finishing agent based on montmorillonite/DNA hydrosol, it is characterised in that: described antiflaming finishing agent mainly includes following components: montmorillonite, DNA, coupling agent;In parts by weight, in described antiflaming finishing agent, the content of each component is as follows: the montmorillonite of 1 weight portion, the DNA of 0.1~10 weight portion, 0.1~10 weight portion coupling agent.
2. the antiflaming finishing agent based on montmorillonite/DNA hydrosol as claimed in claim 1 a kind of, it is characterised in that: described montmorillonite is commercial montmorillonite through stripping point, modified obtains nano imvite;The average wafer thickness of described modified nano imvite is less than 25nm.
3. a kind of antiflaming finishing agent based on montmorillonite/DNA hydrosol as claimed in claim 1, it is characterised in that: described coupling agent is at least one in silane coupler or titanate coupling agent.
4. a kind of antiflaming finishing agent based on montmorillonite/DNA hydrosol as claimed in claim 3, it is characterised in that: described silane coupler is KH550, KH560, and described titanate coupling agent is HY311.
5. the preparation method of the antiflaming finishing agent based on montmorillonite/DNA hydrosol in Claims 1-4 as described in any one, it is characterised in that described preparation method mainly comprises the steps that
1) montmorillonite of 1 weight portion is added in the hydrogen peroxide of 30% of 10~100 weight portions, 24~100h is reacted at-10~30 DEG C, it is centrifuged 5~60 minutes when 3000~9000r/min, isolated precipitate is dispersed in the sodium carbonate liquor of 5~30% again, stirring 2~20h, supersound process 0.5~10 hour under 5~50KHz, centrifugal when 3000~9000r/min, obtain the montmorillonite sample of stripping point;
2) by 1) in obtain 1 weight portion stripping point montmorillonite be dispersed in 75% ethanol water of 5~150 weight portions, stirring, heating, to 30~80 DEG C, adds the coupling agent of 0.1~10 weight portion, stirring reaction 1~6 hour, obtains modified montmorillonoid sample;
3) by 2) in the DNA mixing of the modified montmorillonoid of 1 weight portion that obtains and 0.1~10 weight portion, stir 0.5~6h at 0~60 DEG C, prepare montmorillonite and DNA Compound Water colloidal sol, be the antiflaming finishing agent based on montmorillonite/DNA hydrosol.
6. the application of the antiflaming finishing agent based on montmorillonite/DNA hydrosol as claimed in claim 5, it is characterised in that: described antiflaming finishing agent is mainly used in the finishing process of polyester-cotton fabric.
7. the application of the antiflaming finishing agent based on montmorillonite/DNA hydrosol as claimed in claim 6, it is characterized in that, the application of described antiflaming finishing agent mainly comprises the steps that in parts by weight, 1 part of cleaned for acetone polyester-mixed cotton cloth is immersed in 30~150 parts of montmorillonites and DNA Compound Water colloidal sol when some tension, dry at 20~50 DEG C, promote the montmorillonite platelet in Compound Water colloidal sol in polyester fiber surface-assembled, obtain the polyester-cotton fabric with certain anti-flaming function.
CN201610176164.9A 2016-03-26 2016-03-26 One kind is based on antiflaming finishing agent, its preparation method and its application of montmorillonite/DNA hydrosols Expired - Fee Related CN105780453B (en)

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CN106906644A (en) * 2017-04-12 2017-06-30 陕西科技大学 The fire-retardant use difunctional of bafta is attapulgite modified and preparation method thereof
CN107385913A (en) * 2017-09-08 2017-11-24 公安部四川消防研究所 A kind of preparation method of durable flame-proof fabric finishing liquor and durable flame-proof fabric
CN107916573A (en) * 2017-11-30 2018-04-17 英泰时尚服饰(苏州)有限公司 A kind of preparation method of flame-retardant and anti-static finishing agent

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106906644A (en) * 2017-04-12 2017-06-30 陕西科技大学 The fire-retardant use difunctional of bafta is attapulgite modified and preparation method thereof
CN106906644B (en) * 2017-04-12 2019-03-15 陕西科技大学 Cotton fabric is fire-retardant attapulgite modified and preparation method thereof with difunctional
CN107385913A (en) * 2017-09-08 2017-11-24 公安部四川消防研究所 A kind of preparation method of durable flame-proof fabric finishing liquor and durable flame-proof fabric
CN107385913B (en) * 2017-09-08 2019-09-27 公安部四川消防研究所 A kind of preparation method of durable flame-proof fabric finishing liquor and durable flame-proof fabric
CN107916573A (en) * 2017-11-30 2018-04-17 英泰时尚服饰(苏州)有限公司 A kind of preparation method of flame-retardant and anti-static finishing agent

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