CN114621499B - Attapulgite-based flame retardant and application thereof in preparation of halogen-free low-smoke flame-retardant wire and cable sheath material - Google Patents
Attapulgite-based flame retardant and application thereof in preparation of halogen-free low-smoke flame-retardant wire and cable sheath material Download PDFInfo
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- 229910052625 palygorskite Inorganic materials 0.000 title claims abstract description 88
- 229960000892 attapulgite Drugs 0.000 title claims abstract description 87
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 70
- 239000003063 flame retardant Substances 0.000 title claims abstract description 70
- 239000000779 smoke Substances 0.000 title claims abstract description 32
- 239000000463 material Substances 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title claims description 8
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims abstract description 31
- 229910000164 yttrium(III) phosphate Inorganic materials 0.000 claims abstract description 29
- UXBZSSBXGPYSIL-UHFFFAOYSA-K yttrium(iii) phosphate Chemical compound [Y+3].[O-]P([O-])([O-])=O UXBZSSBXGPYSIL-UHFFFAOYSA-K 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims description 19
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 6
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 6
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 5
- 239000003963 antioxidant agent Substances 0.000 claims description 5
- 230000003078 antioxidant effect Effects 0.000 claims description 5
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 5
- 239000000347 magnesium hydroxide Substances 0.000 claims description 5
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 5
- 229920000092 linear low density polyethylene Polymers 0.000 claims description 3
- 239000004707 linear low-density polyethylene Substances 0.000 claims description 3
- 239000012745 toughening agent Substances 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- 239000002861 polymer material Substances 0.000 abstract description 4
- 230000002195 synergetic effect Effects 0.000 abstract description 3
- 239000000843 powder Substances 0.000 description 26
- 238000000498 ball milling Methods 0.000 description 13
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 10
- 239000013068 control sample Substances 0.000 description 8
- 101150015935 ATP2 gene Proteins 0.000 description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 229910002092 carbon dioxide Inorganic materials 0.000 description 5
- 239000001569 carbon dioxide Substances 0.000 description 5
- 229910002091 carbon monoxide Inorganic materials 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 230000036284 oxygen consumption Effects 0.000 description 5
- 101150072179 ATP1 gene Proteins 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 101100436871 Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987) atp-3 gene Proteins 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 229920001912 maleic anhydride grafted polyethylene Polymers 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/28—Nitrogen-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
- C08L23/0815—Copolymers of ethene with aliphatic 1-olefins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C08L23/0853—Vinylacetate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/328—Phosphates of heavy metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/22—Halogen free composition
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
Abstract
The invention discloses an attapulgite-based flame retardant. The attapulgite-based flame retardant consists of attapulgite, yttrium phosphate and ammonium perrhenate, wherein the content of the yttrium phosphate is 10-30% of the mass of the attapulgite, and the content of the ammonium perrhenate is 10-20% of the mass of the attapulgite. Compared with the prior art, the attapulgite-based flame retardant disclosed by the invention not only can obviously improve the flame-retardant, smoke-suppression and toxicity-reduction capability of attapulgite on high polymer materials, but also can obviously improve the mechanical properties of the materials, has a synergistic effect, and can be used for preparing low-smoke halogen-free flame-retardant wire and cable sheath materials.
Description
Technical Field
The invention relates to an attapulgite-based flame retardant and application thereof in preparing a halogen-free low-smoke flame-retardant wire and cable sheath material.
Background
Electrical fire is one of the main causes of building fire in recent years, and electrical fire containing a large amount of high polymer materials is very easy to cause fire under the conditions of short circuit, overload, overlarge contact resistance, electric leakage, aging of wires and cables and the like, so the development of flame-retardant wire and cable materials is particularly important.
At present, the flame-retardant wire and cable materials are divided into general flame-retardant wires and cables, low-smoke low-halogen flame-retardant wires and cables and low-smoke halogen-free flame-retardant wires and cables, and the flame-retardant wires and cables are mainly made of the low-smoke halogen-free flame-retardant wires and cables.
Attapulgite, also known as palygorskite, has been reported to be applied to low-smoke halogen-free flame-retardant wire and cable sheath materials, such as patent documents CN113930007A, CN109280220A, CN109553891A, CN107201039A and CN103351519A. However, no document reports that the attapulgite is compounded with yttrium phosphate and ammonium perrhenate to improve the flame-retardant, smoke-inhibiting and toxicity-reducing capabilities of the attapulgite on the wire and cable sheath materials.
Disclosure of Invention
Based on the prior art, the invention aims to provide the attapulgite-based flame retardant with good flame-retardant, smoke-inhibiting and toxicity-reducing capabilities.
The technical scheme adopted by the invention for realizing the purpose is as follows:
the attapulgite-based flame retardant consists of attapulgite, yttrium phosphate and ammonium perrhenate, wherein the content of the yttrium phosphate is 10-30% of the mass of the attapulgite, and the content of the ammonium perrhenate is 10-20% of the mass of the attapulgite.
The preparation method of the attapulgite-based flame retardant comprises the following steps: mixing attapulgite, yttrium phosphate and ammonium perrhenate by a mechanochemical method to obtain the attapulgite-based flame retardant.
Preferably, the attapulgite is mixed with yttrium phosphate and then with ammonium perrhenate.
More preferably, the attapulgite is mixed with yttrium phosphate for 5 to 10min, and mixed with ammonium perrhenate for 3 to 5min.
Preferably, the apparatus used for mechanochemical mixing is a high energy ball mill.
The attapulgite-based flame retardant is applied to the preparation of flame-retardant polymer composite materials.
The attapulgite-based flame retardant is applied to the preparation of halogen-free low-smoke flame-retardant cable sheath materials.
Preferably, the content of the attapulgite-based flame retardant in the halogen-free low-smoke flame-retardant cable sheath material is 1.5-5 wt%.
More preferably, the content of the attapulgite-based flame retardant in the halogen-free low-smoke flame-retardant cable sheath material is 2-3 wt%.
The halogen-free low-smoke flame-retardant cable sheath material comprises the following components in parts by weight:
10-15 parts of linear low-density polyethylene, 10-20 parts of ethylene-vinyl acetate copolymer, 30-45 parts of aluminum hydroxide, 10-15 parts of magnesium hydroxide, 3-8 parts of toughening agent, 2-5 parts of compatilizer, 2-3 parts of attapulgite-based flame retardant and 0.5-1.5 parts of antioxidant.
Advantageous effects
The attapulgite-based flame retardant disclosed by the invention is compounded with attapulgite, yttrium phosphate and ammonium perrhenate, so that the flame retardant, smoke suppression and toxicity reduction capabilities of a high polymer material can be remarkably improved, the mechanical properties of the material can be remarkably improved, the attapulgite-based flame retardant has an obvious synergistic effect, and the attapulgite-based flame retardant is an excellent multifunctional assistant for the high polymer material.
Detailed Description
The technical solution of the present invention will be further described in detail with reference to the following examples.
Example 1
1. Fully and uniformly mixing commercially purified and dissociated attapulgite powder with yttrium phosphate by using a mechanochemical method (equipment is a high-energy ball mill), wherein the ball milling time is 5min, the dosage of the yttrium phosphate is 20 percent of the mass of the attapulgite powder, and the obtained product is marked as ATP-1;
2. and (3) fully and uniformly mixing ATP-1 and ammonium perrhenate by using a mechanochemical method (equipment is a high-energy ball mill), wherein the ball milling and mixing time is 5min, and the using amount of the ammonium perrhenate is 15 percent of the mass of the attapulgite powder, so that the attapulgite-based flame retardant, which is marked as ATP-2, is obtained.
3. And (3) fully and uniformly mixing the attapulgite powder and ammonium perrhenate by using a mechanochemical method (equipment is a high-energy ball mill), wherein the ball-milling mixing time is 5min, the using amount of the ammonium perrhenate is 15 percent of the mass of the attapulgite powder, and a reference product is obtained and is marked as ATP-3.
Example 2
1. Fully and uniformly mixing commercially purified and dissociated attapulgite powder with yttrium phosphate by using a mechanochemical method (equipment is a high-energy ball mill), wherein the ball milling mixing time is 10min, and the using amount of the yttrium phosphate is 10 percent of the mass of the attapulgite powder;
2. and (2) fully and uniformly mixing the powder obtained in the step (1) and ammonium perrhenate by using a mechanochemical method (equipment is a high-energy ball mill), wherein the ball milling mixing time is 5min, and the using amount of the ammonium perrhenate is 20 percent of the mass of the attapulgite powder, so that the attapulgite-based flame retardant is obtained.
Example 3
1. Fully and uniformly mixing commercially purified and dissociated attapulgite powder with yttrium phosphate by using a mechanochemical method (equipment is a high-energy ball mill), wherein the ball milling mixing time is 5min, and the using amount of the yttrium phosphate is 30 percent of the mass of the attapulgite powder;
2. and (2) fully and uniformly mixing the powder obtained in the step (1) and ammonium perrhenate by using a mechanochemical method (equipment is a high-energy ball mill), wherein the ball milling mixing time is 3min, and the using amount of the ammonium perrhenate is 10 percent of the mass of the attapulgite powder, so that the attapulgite-based flame retardant is obtained.
Example 4
1. Fully and uniformly mixing commercially purified and dissociated attapulgite powder with yttrium phosphate by using a mechanochemical method (equipment is a high-energy ball mill), wherein the ball milling mixing time is 7min, and the using amount of the yttrium phosphate is 10 percent of the mass of the attapulgite powder;
2. and (2) fully and uniformly mixing the powder obtained in the step (1) and ammonium perrhenate by using a mechanochemical method (equipment is a high-energy ball mill), wherein the ball milling mixing time is 4min, and the using amount of the ammonium perrhenate is 10 percent of the mass of the attapulgite powder, so that the attapulgite-based flame retardant is obtained.
Example 5
1. Fully and uniformly mixing commercially purified and dissociated attapulgite powder with yttrium phosphate by using a mechanochemical method (equipment is a high-energy ball mill), wherein the ball milling mixing time is 5min, and the using amount of the yttrium phosphate is 15 percent of the mass of the attapulgite powder;
2. and (2) fully and uniformly mixing the powder obtained in the step (1) and ammonium perrhenate by using a mechanochemical method (equipment is a high-energy ball mill), wherein the ball milling mixing time is 5min, and the using amount of the ammonium perrhenate is 15 percent of the mass of the attapulgite powder, so that the attapulgite-based flame retardant is obtained.
Example 6
1. Fully and uniformly mixing commercially purified and dissociated attapulgite powder with yttrium phosphate by using a mechanochemical method (equipment is a high-energy ball mill), wherein the ball milling mixing time is 5min, and the using amount of the yttrium phosphate is 25 percent of the mass of the attapulgite powder;
2. and (2) fully and uniformly mixing the powder obtained in the step (1) and ammonium perrhenate by using a mechanochemical method (equipment is a high-energy ball mill), wherein the ball milling mixing time is 3min, and the using amount of the ammonium perrhenate is 15 percent of the mass of the attapulgite powder, so that the attapulgite-based flame retardant is obtained.
The high energy ball mill used in the present invention is a conventional commercially available apparatus.
Example 7
The halogen-free low-smoke flame-retardant wire and cable sheath material is prepared from 15 parts by weight of linear low-density polyethylene (LLAPE), 15 parts by weight of ethylene-vinyl acetate copolymer (EVA), 40 parts by weight of superfine aluminum hydroxide, 15 parts by weight of magnesium hydroxide, 8 parts by weight of toughener (ethylene-octene copolymer, POE), 3.5 parts by weight of compatilizer (maleic anhydride grafted polyethylene), 2.5 parts by weight of ATP-and 1 part by weight of antioxidant by a double-screw extruder.
ATP-2 is the attapulgite-based flame retardant prepared in example 1.
Comparative examples 1 to 3
The difference between the preparation process of the halogen-free low-smoke flame-retardant wire and cable sheath material and the embodiment 7 is that attapulgite powder and ATP-1 and ATP-3 prepared in the embodiment 1 are respectively used for replacing ATP-2 in the embodiment 7, and control samples 1 to 3 corresponding to pure attapulgite, attapulgite/yttrium phosphate and attapulgite/ammonium perrhenate are respectively obtained.
Comparative example 4
The preparation process of the halogen-free low-smoke flame-retardant wire and cable sheath material is different from that of the embodiment 7 only in that ATP-2 is not added, and a blank control sample 4 is obtained.
Example 8
Preparing 15 parts by weight of LLAPE, 10 parts by weight of EVA, 45 parts by weight of superfine aluminum hydroxide, 10 parts by weight of magnesium hydroxide, 8 parts by weight of POE, 4 parts by weight of compatilizer, 2 parts by weight of ATP-2 and 1 part by weight of antioxidant into the halogen-free low-smoke flame-retardant wire and cable sheath material by a double-screw extruder.
Example 9
Preparing 10 parts by weight of LLAPE, 20 parts by weight of EVA, 30 parts by weight of superfine aluminum hydroxide, 15 parts by weight of magnesium hydroxide, 3 parts by weight of POE, 3 parts by weight of compatilizer, 2 parts by weight of ATP-2 and 1 part by weight of antioxidant into the halogen-free low-smoke flame-retardant wire and cable sheath material by a double-screw extruder.
Performance test of halogen-free low-smoke flame-retardant wire and cable sheath material
The halogen-free low-smoke flame-retardant wire and cable sheath material prepared in example 7 and comparative examples 1 to 4 were tested for oxygen index, flameless smoke density, average heat release rate, peak heat release rate, total heat release rate, tensile strength, elongation at break, carbon dioxide release amount, carbon monoxide release amount, and total oxygen consumption by a conventional method. The test results are given in the following table:
from the test results it can be seen that:
1. compared with the blank control sample 4, the control sample 1 added with pure attapulgite has certain improvements in oxygen index, flameless smoke density, average heat release rate, peak heat release rate, total heat release rate, tensile strength, elongation at break, carbon dioxide release amount and total oxygen consumption, but the improvement on the carbon monoxide release amount is not obvious.
2. Compared with the control sample 1 added with pure attapulgite, the control sample 2 added with attapulgite/yttrium phosphate has improved oxygen index, flameless smoke density, average heat release rate, peak heat release rate, total heat release rate, elongation at break and carbon monoxide release, and has poor tensile strength, carbon dioxide release and total oxygen consumption, but the total change is not obvious.
3. Compared with the control sample 1 added with pure attapulgite, the control sample 3 added with attapulgite/ammonium perrhenate has improved oxygen index, average heat release rate, peak heat release rate, total heat release rate, elongation at break and carbon monoxide release amount, and has worse flameless smoke density, tensile strength, carbon dioxide release amount and total oxygen consumption, but the total change is not obvious.
4. Whether compared with control sample 1 or control samples 2-3, the oxygen index, the flameless smoke density, the average heat release rate, the peak heat release rate, the total heat release rate, the tensile strength, the elongation at break, the carbon dioxide release amount, the carbon monoxide release amount and the total oxygen consumption of example 7 using the attapulgite-based flame retardant of the present invention were all significantly improved, indicating that in the attapulgite-based flame retardant of the present invention, the attapulgite, yttrium phosphate and ammonium perrhenate produced a synergistic effect.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An attapulgite-based flame retardant is characterized in that: the attapulgite-based flame retardant consists of attapulgite, yttrium phosphate and ammonium perrhenate, wherein the content of the yttrium phosphate is 10-30% of the mass of the attapulgite, and the content of the ammonium perrhenate is 10-20% of the mass of the attapulgite.
2. The method for preparing the attapulgite-based flame retardant of claim 1, which is characterized in that: mixing attapulgite, yttrium phosphate and ammonium perrhenate by a mechanochemical method to obtain the attapulgite-based flame retardant.
3. The method of claim 2, wherein: the attapulgite is first mixed with yttrium phosphate and then with ammonium perrhenate.
4. The production method according to claim 3, characterized in that: the mixing time of the attapulgite and the yttrium phosphate is 5-10min, and the mixing time of the attapulgite and the ammonium perrhenate is 3-5min.
5. The method of claim 2, wherein: the mechanical-chemical mixing method adopts high-energy ball mill as the equipment.
6. The use of the attapulgite-based flame retardant of claim 1 in the preparation of flame-retardant polymer composite materials.
7. The application of the attapulgite-based flame retardant in claim 1 in preparing a halogen-free low-smoke flame-retardant wire and cable sheath material.
8. Use according to claim 7, characterized in that: the content of the attapulgite-based flame retardant in the halogen-free low-smoke flame-retardant wire and cable sheath material is 1.5-5 wt%.
9. Use according to claim 8, characterized in that: the content of the attapulgite-based flame retardant in the halogen-free low-smoke flame-retardant wire and cable sheath material is 2-3 wt%.
10. The halogen-free low-smoke flame-retardant wire and cable sheath material is characterized in that: the halogen-free low-smoke flame-retardant wire and cable sheath material comprises the following components in parts by weight:
10-15 parts of linear low-density polyethylene, 10-20 parts of ethylene-vinyl acetate copolymer, 30-45 parts of aluminum hydroxide, 10-15 parts of magnesium hydroxide, 3-8 parts of toughening agent, 2-5 parts of compatilizer, 2-3 parts of attapulgite-based flame retardant according to claim 1 and 0.5-1.5 parts of antioxidant.
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| CN1581369A (en) * | 2003-08-15 | 2005-02-16 | 北京化工大学 | Halogen-free non-phosphorus flame-retarded cable sheath material |
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| CN103232631A (en) * | 2013-06-03 | 2013-08-07 | 北京理工大学 | Halogen-free low-smoke flame-retardant cable sheath material and preparation method of same |
| CN106751419A (en) * | 2016-11-22 | 2017-05-31 | 郑州仁宏医药科技有限公司 | A kind of POM flame retardant plastics and preparation method thereof |
| CN111234361A (en) * | 2020-03-16 | 2020-06-05 | 山东华凌电缆有限公司 | Thermoplastic halogen-free low-smoke flame-retardant polyolefin cable sheath material and preparation method thereof |
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