CN103450502A - Inorganic flame retardant and preparation method thereof - Google Patents
Inorganic flame retardant and preparation method thereof Download PDFInfo
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- CN103450502A CN103450502A CN2012101866534A CN201210186653A CN103450502A CN 103450502 A CN103450502 A CN 103450502A CN 2012101866534 A CN2012101866534 A CN 2012101866534A CN 201210186653 A CN201210186653 A CN 201210186653A CN 103450502 A CN103450502 A CN 103450502A
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Abstract
The invention discloses an inorganic flame retardant and a preparation method thereof. The inorganic flame retardant has the characteristic that the components of the inorganic flame retardant consist of ultrafine magnesium silicate, aluminum hydroxide and a modifying agent. The preparation method of the inorganic flame retardant comprises the following steps: material selection, material pretreatment, crushing treatment, modifying agent selection and treatment, and modifying treatment, wherein the modifying treatment is as follows: adding the product particles into a modifying machine; meanwhile, heating up the modifying machine, so that the materials in the modifying machine are heated up to 100 DEG C; dropwise adding a coupling agent after 10 minutes, wherein the adding amount of the coupling agent is 1.2%, and the temperature is kept at 100 DEG C for 30 minutes when the coupling agent is added. The inorganic flame retardant disclosed by the invention is not only used for improving tension strength, shearing strength, flexural strength and pressure strength of the product, but also is high in whiteness, uniform in grain size and strong in dispersity. Meanwhile, the inorganic flame retardant further can be used for improving CTI (Computer Telephony Integration) indexes, is not only good in thermal stability and invariant in color, but also is capable of improving the tinting strength of the material.
Description
Technical field
The present invention relates to a kind of fire retardant, mainly relate to a kind of inorganic combustion inhibitor and preparation method thereof.
Background technology
Fire retardant is the frie retardant coating of steel and iron member, one of main component of the fire-proof packing of plastic material and cable insulation fire-proof packing, and its consumption increases sharply along with the raising of industrialization of the country degree and living standards of the people.In recent years due to the widespread use of house decorative material, the fire retardant performance of synthetic materials itself increases day by day to the importance of building safety, in all kinds of inorganic combustion inhibitors, the magnesium aluminum-hydrotalcite Heat stability is good, have concurrently fire-retardant, eliminate smoke, etc. function, a kind of efficient, nontoxic, the high-quality fire retardant material of low cigarette, but preparation cost is higher, antimony oxide flame retardant can with contained halogen in synthetic materials, or the Cold Dew be used in conjunction with element compound produces great cooperative flame retardant effect, it is a kind of highly effective flame-retardant synergist, but can produce a large amount of black smokes when burning, be unfavorable for environmental protection.
Summary of the invention
Purpose of the present invention is exactly deficiency and the defect existed for solving above-mentioned prior art, and a kind of novel inorganic fire retardant and preparation method thereof is provided.
The technical scheme adopted is:
A kind of inorganic combustion inhibitor is characterized in that: its composition is comprised of ultra-fine Magnesium Silicate q-agent, aluminium hydroxide, properties-correcting agent, and its formula is by weight percentage:
Ultra-fine Magnesium Silicate q-agent is 88-92%, and aluminium hydroxide is 6-12%, and properties-correcting agent is 1-1.5%.
A kind of preparation method of inorganic combustion inhibitor is characterized in that comprising following processing step:
1, select raw material: select ultra-fine Magnesium Silicate q-agent 88-92% and aluminium hydroxide 8-12%.
2, raw materials pretreatment: by the natural ore that inorganic combustion inhibitor picking of raw material content is high, whiteness is good.
3, pulverization process: pulverize through airflow collision, obtain natural inorganic combustion inhibitor particle, through laser particle analyzer, adopt diffraction approach to detect, whiteness reaches more than 95%.
4, the selection of properties-correcting agent: it is external KBE coupling agent series that properties-correcting agent is selected.
5, modification: by above-mentioned this product particulate, put in modifying machine, modifying machine is heated up simultaneously, make material temperature in modifying machine rise to 100-110 ℃, be added dropwise to the agent of above-mentioned coupling machine after 10～15 minutes, the coupling agent add-on is 1%～1.5% (weight ratio), and the coupling agent joining day is to add in 8～15 minutes, while splashing into coupling agent, the temperature of this product remains on 100～145 ℃, insulation reaction 30～40 minutes.The optimum quality ratio of described coupling agent add-on is 1.2%, and the Best Times that coupling agent adds is 10 minutes, and while adding coupling agent, the maintenance optimum temps of this product is 100 ℃
The present invention also comprises detection degree of modification step: by the sampling of the inorganic combustion inhibitor particle after above-mentioned modification, take degree of activation as midpoint controlling method, degree of activation is generally: 85%～98%, and optimum value is 95%.
The present invention compared with prior art has the following advantages:
The present invention has not only improved the tensile strength of product, shearing resistance, and flexing intensity, pressure intensity, and also whiteness is high, epigranular, dispersed strong.Simultaneously the present invention can also significantly improve the CTI index, Heat stability is good not only, and nondiscoloration, can also improve the tinting strength of material; Substitute For Partial antimonous oxide in anti-flaming modified material, and play the flame-retardant smoke inhibition effect; Through special surface, process, splendid with the consistency of resin; In material modified middle use, can significantly improve the processing fluidity of material; Light specific gravity; Can reduce the density of product after use.
Embodiment
Implementation column one
A kind of inorganic combustion inhibitor, its formula is by weight percentage:
Ultra-fine Magnesium Silicate q-agent is 88.8%, and aluminium hydroxide is that 10%, KBE (903) is 1.2%.
The preparation method
1, select raw material: selection mineral substance performance is good, indices meets the ultra-fine Magnesium Silicate q-agent of material condition requirement and aluminium hydroxide fully.
2, raw materials pretreatment: by the natural ore that inorganic combustion inhibitor picking of raw material content is high, whiteness is good.
3, pulverization process: adopt the airflow milling pulverizer to carry out the airflow collision pulverizing, after obtaining natural inorganic combustion inhibitor particle, then separated with grading machine, with laser particle analyzer, adopt diffraction approach to detect D50:<1um.
4, the selection of properties-correcting agent and processing, among properties-correcting agent selection KBE coupling agent series, 903 magnetize processing for example to it, increase its activity.。
5, modification: the raw material after pulverizing is put in modifying machine by 100kg, modifying machine is heated up simultaneously, make material temperature in modifying machine rise to 100 ℃, be added dropwise to above-mentioned coupling machine agent after processed after 10 minutes, the coupling agent add-on is 1.2%, while adding coupling agent this product temperature is remained on to 100 ℃, be incubated 30 minutes.
6, detect degree of modification: the inorganic combustion inhibitor particulate after above-mentioned modification is sampled, take degree of activation as midpoint controlling method, degree of activation is midpoint controlling method, and degree of activation is generally 85%～98%, and degree of activation is calculated as follows:
Embodiment bis-
Embodiments of the invention two are with embodiment with basic identical, and its difference is: in its formula, properties-correcting agent selects among KBE coupling agent series 403, and processing step is identical with embodiment mono-.
Claims (3)
1. an inorganic combustion inhibitor, it is characterized in that: its composition is comprised of ultra-fine Magnesium Silicate q-agent, aluminium hydroxide, properties-correcting agent, and its formula is by weight percentage:
Ultra-fine Magnesium Silicate q-agent is 88-92%, and aluminium hydroxide is 6-12%, and properties-correcting agent is 1-1.5%.
2. a kind of inorganic combustion inhibitor according to claim 1, is characterized in that in described formula, properties-correcting agent is KBE (903) or KBE (903).
3. the preparation method of a novel inorganic fire retardant, its feature comprises following processing step:
1), select raw material: select ultra-fine Magnesium Silicate q-agent 88-92% and aluminium hydroxide 8-12%;
2), raw materials pretreatment: by the natural ore that inorganic combustion inhibitor picking of raw material content is high, whiteness is good;
3), pulverization process: pulverize through airflow collision, obtain natural inorganic combustion inhibitor particle, through laser particle analyzer, adopt diffraction approach to detect, whiteness reaches more than 95%;
4), the selection of properties-correcting agent, properties-correcting agent is selected KBE coupling agent series:
5), modification: by above-mentioned this product particulate, put in modifying machine, modifying machine is heated up simultaneously, make material temperature in modifying machine rise to 100-110 ℃, be added dropwise to the agent of above-mentioned coupling machine after 10～15 minutes, the coupling agent add-on is 1%～1.5% by weight percentage, the coupling agent joining day is to add in 8～15 minutes, while splashing into coupling agent, this product temperature remains on 100～145 ℃, insulation reaction 30～40 minutes, the optimum quality ratio of described coupling agent add-on is 1.2%, the Best Times that coupling agent adds is 10 minutes, while adding coupling agent, the maintenance optimum temps of this product is 100 ℃.
Priority Applications (1)
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| CN2012101866534A CN103450502A (en) | 2012-06-03 | 2012-06-03 | Inorganic flame retardant and preparation method thereof |
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| CN2012101866534A CN103450502A (en) | 2012-06-03 | 2012-06-03 | Inorganic flame retardant and preparation method thereof |
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| CN103450502A true CN103450502A (en) | 2013-12-18 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103866614A (en) * | 2014-02-25 | 2014-06-18 | 苏州恒康新材料有限公司 | Paper fire retardant and preparation method thereof |
| CN106009781A (en) * | 2016-06-15 | 2016-10-12 | 江西广源化工有限责任公司 | Preparation method of aluminum hydroxide coated talc powder special for flame retardant cable material |
| CN106832410A (en) * | 2016-12-30 | 2017-06-13 | 北京华腾新材料股份有限公司 | A kind of inorganic siliceous fire retarding synergist |
| CN107129755A (en) * | 2017-06-29 | 2017-09-05 | 周兰兰 | It is a kind of applied to anti-flaming dope of Wood plastic furniture and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101597426A (en) * | 2008-04-11 | 2009-12-09 | 帝人株式会社 | Flame-retardant polycarbonate resin composition |
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2012
- 2012-06-03 CN CN2012101866534A patent/CN103450502A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101597426A (en) * | 2008-04-11 | 2009-12-09 | 帝人株式会社 | Flame-retardant polycarbonate resin composition |
Non-Patent Citations (1)
| Title |
|---|
| 孙晨: ""无机阻燃剂一一氢氧化镁的发展现状"", 《2005年全国阻燃学术年会论文集》, 1 May 2005 (2005-05-01) * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103866614A (en) * | 2014-02-25 | 2014-06-18 | 苏州恒康新材料有限公司 | Paper fire retardant and preparation method thereof |
| CN103866614B (en) * | 2014-02-25 | 2016-06-22 | 青岛橡胶谷知识产权有限公司 | A kind of Flame Retardant in Paper and preparation method thereof |
| CN106009781A (en) * | 2016-06-15 | 2016-10-12 | 江西广源化工有限责任公司 | Preparation method of aluminum hydroxide coated talc powder special for flame retardant cable material |
| CN106832410A (en) * | 2016-12-30 | 2017-06-13 | 北京华腾新材料股份有限公司 | A kind of inorganic siliceous fire retarding synergist |
| CN107129755A (en) * | 2017-06-29 | 2017-09-05 | 周兰兰 | It is a kind of applied to anti-flaming dope of Wood plastic furniture and preparation method thereof |
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Application publication date: 20131218 |