CN116376217B - Flame-retardant composition and preparation method thereof - Google Patents
Flame-retardant composition and preparation method thereof Download PDFInfo
- Publication number
- CN116376217B CN116376217B CN202310463900.9A CN202310463900A CN116376217B CN 116376217 B CN116376217 B CN 116376217B CN 202310463900 A CN202310463900 A CN 202310463900A CN 116376217 B CN116376217 B CN 116376217B
- Authority
- CN
- China
- Prior art keywords
- agent
- parts
- flame
- retardant composition
- stirring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 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 62
- 239000003063 flame retardant Substances 0.000 title claims abstract description 62
- 239000000203 mixture Substances 0.000 title claims abstract description 46
- 238000002360 preparation method Methods 0.000 title abstract description 12
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 121
- 239000002245 particle Substances 0.000 claims abstract description 50
- 238000007493 shaping process Methods 0.000 claims abstract description 44
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims abstract description 43
- 239000005011 phenolic resin Substances 0.000 claims abstract description 43
- 229920001568 phenolic resin Polymers 0.000 claims abstract description 43
- 238000005187 foaming Methods 0.000 claims abstract description 36
- 239000000945 filler Substances 0.000 claims abstract description 34
- 238000003756 stirring Methods 0.000 claims abstract description 33
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 31
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 31
- 239000001301 oxygen Substances 0.000 claims abstract description 31
- 239000004576 sand Substances 0.000 claims abstract description 31
- 239000000314 lubricant Substances 0.000 claims abstract description 30
- 239000000463 material Substances 0.000 claims abstract description 24
- 238000002156 mixing Methods 0.000 claims abstract description 22
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 230000036284 oxygen consumption Effects 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 239000010439 graphite Substances 0.000 claims description 9
- 229910002804 graphite Inorganic materials 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 125000000217 alkyl group Chemical group 0.000 claims description 8
- RYYKJJJTJZKILX-UHFFFAOYSA-M sodium octadecanoate Chemical group [Na+].CCCCCCCCCCCCCCCCCC([O-])=O RYYKJJJTJZKILX-UHFFFAOYSA-M 0.000 claims description 8
- 239000007864 aqueous solution Substances 0.000 claims description 6
- 239000004480 active ingredient Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 2
- 239000001569 carbon dioxide Substances 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 10
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 10
- 230000002269 spontaneous effect Effects 0.000 description 9
- 238000002485 combustion reaction Methods 0.000 description 8
- 230000008961 swelling Effects 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 230000000149 penetrating effect Effects 0.000 description 5
- 231100000331 toxic Toxicity 0.000 description 5
- 230000002588 toxic effect Effects 0.000 description 5
- 239000002023 wood Substances 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 4
- 238000011049 filling Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 241001629511 Litchi Species 0.000 description 3
- 230000004083 survival effect Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- -1 glycol ether compounds Chemical class 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- 241000723346 Cinnamomum camphora Species 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 150000007824 aliphatic compounds Chemical class 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 239000004067 bulking agent Substances 0.000 description 1
- 125000002057 carboxymethyl group Chemical group [H]OC(=O)C([H])([H])[*] 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
- C08L61/04—Condensation polymers of aldehydes or ketones with phenols only
- C08L61/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L5/00—Compositions of polysaccharides or of their derivatives not provided for in groups C08L1/00 or C08L3/00
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L5/00—Compositions of polysaccharides or of their derivatives not provided for in groups C08L1/00 or C08L3/00
- C08L5/02—Dextran; Derivatives thereof
-
- 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
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/085—Copper
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The invention relates to the technical field of flame-retardant materials, in particular to a flame-retardant composition; the filler comprises 35-55 parts by weight of filler; 30-40 parts of a lubricant; 5-10 parts of oxygen consuming agent; 5-10 parts of an expanding agent; 6-8 parts of shaping agent; the filler is river sand and foaming phenolic resin particles; also relates to a preparation method of the flame retardant composition, which comprises the steps of stirring and mixing river sand and a lubricant, and then adding an oxygen consumption agent for mixing; and heating the shaping agent to a molten state, adding the shaping agent, and stirring until the temperature of the mixed material is less than or equal to 50 ℃; and a step of adding and stirring the expanding agent and the foamed phenolic resin particles to obtain a flame retardant composition; when the tree hole is on fire, the expansion agent is heated to break the fragile bonding structure between the adjacent fillers, the oxygen consuming agent consumes part of oxygen and generates carbon dioxide, and the collapsed fillers are rushed to the fire place under the pushing of the expansion agent, so that the flame retardant effect is finally achieved.
Description
Technical Field
The invention relates to the technical field of flame-retardant materials, in particular to a flame-retardant composition and a preparation method thereof.
Background
It is well known that wood materials are flammable substances, especially dry wood, which are particularly prone to fire burning and even in extreme weather spontaneous combustion can occur. The wooden strips in the wall body of the old resident house have spontaneous combustion fire accidents under the conditions of no electric circuit faults, left fire, and the like, the old camphor tree names in the village of Zhejiang Jinhua Zhongshan are spontaneous combustion, and related accidents such as bear flames sprayed from a plurality of tree holes occur in society.
The prior art is generally used for preventing spontaneous combustion of wood materials by coating fireproof flame-retardant materials on the outer surfaces and injecting flame-retardant materials containing penetrating agents into the wood materials. The prior art is not suitable for preventing spontaneous combustion accidents of ancient trees. Spontaneous combustion of ancient trees occurs in tree holes instead of on the surfaces, and the tree holes continue to expand with time, so that the effect of coating fireproof and flame-retardant materials on the surfaces is not great, and penetrating agents (glycol ether compounds) are easily dissolved in water, aliphatic and aromatic compounds after the penetrating agents are injected into the flame-retardant materials, so that the penetrating agents enter the ancient trees to cause toxic effects.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a flame-retardant composition which is easy to inject into ancient tree holes to realize flame-retardant effect and has no toxic or harmful effect on the ancient trees. In addition, the invention also provides a preparation method of the flame-retardant composition.
The technical scheme of the invention is as follows:
a flame retardant composition comprising the following active ingredients in parts by weight:
the filler is river sand and foaming phenolic resin particles.
Preferably, the composition comprises the following active ingredients in parts by weight:
preferably, the river sand is 40-70 mesh; the mass ratio of river sand to the foamed phenolic resin particles is 1 (2-4).
Preferably, the lubricant is a 50-70wt% aqueous solution of alkyl polyglucoside.
Preferably, the oxygen consuming agent is 40-70 mesh copper powder.
Preferably, the bulking agent is IFR.
Preferably, the shaping agent is sodium stearate.
Preferably, the expanded graphite is contained in the foamed phenolic resin particles in an amount of 15 to 25% by weight.
Preferably, the particle size of the foamed phenolic resin particles is from 0.25 to 1cm.
A method of preparing a flame retardant composition comprising:
the preparation method comprises the following steps of: 35-55 parts of filler, 30-40 parts of lubricant, 5-10 parts of oxygen consuming agent, 5-10 parts of expanding agent and 6-8 parts of shaping agent, wherein the filler is river sand and foaming phenolic resin particles; and, a step of, in the first embodiment,
stirring and mixing river sand and a lubricant, and then adding an oxygen consumption agent for mixing; and, a step of, in the first embodiment,
heating the shaping agent to a molten state, adding the shaping agent, and stirring until the temperature of the mixed material is less than or equal to 50 ℃; and, a step of, in the first embodiment,
adding and stirring the expanding agent and the foaming phenolic resin particles to obtain the flame-retardant composition.
Preferably, it comprises:
stirring and mixing river sand and a lubricant at a rotating speed of 30rpm, and then adding an oxygen consuming agent and mixing at a rotating speed of 60 rpm; and, a step of, in the first embodiment,
heating the shaping agent to a molten state, adding the shaping agent, and stirring the shaping agent at a rotating speed of 60rpm until the temperature of the mixed material is less than or equal to 50 ℃; and, a step of, in the first embodiment,
and adding the expanding agent and the foaming phenolic resin particles and stirring at a rotation speed of 60rpm to obtain the flame-retardant composition.
The composition should be used before curing after being prepared.
The beneficial effects of the invention are as follows:
1. before the flame-retardant composition is cured, the filler with rough surface is assisted by the lubricant to smoothly enter the tree hole, a skeleton is formed by the filler after curing, and the adjacent filler and other components are better connected by the shaping agent, so that the composition forms a solid object adapting to the shape of the space inside the tree hole;
2. gaps among the fillers of the flame-retardant composition contain oxygen consuming agents and expanding agents, so that the oxygen consuming agents and the expanding agents are prevented from contacting the outside; when the tree hole is on fire, the expanding agent is heated to break the fragile bonding structure between the adjacent filling agents, the oxygen consuming agent consumes part of oxygen and generates carbon dioxide, and the collapsed filling agents are pushed by the expanding agent to surge to the fire place, so that the flame retardant effect is finally achieved;
3. the filler of the flame-retardant composition is river sand and foaming phenolic resin particles, the river sand plays a role in supporting and filling, gaps for containing oxygen consuming agents and expanding agents are formed, the foaming phenolic resin particles have good stretching ductility, the flame-retardant composition is suitable for deformation of tree hole spaces during tree growth, larger filling degree is maintained, and the foaming phenolic resin particles have good water absorbability, so that the flame-retardant composition can assist trees in maintaining moisture and transportation inside.
Detailed Description
Further description of the embodiments follows:
a method of preparing a flame retardant composition comprising:
1) The preparation is carried out according to the parts by weight: 35-55 parts of filler, 30-40 parts of lubricant, 5-10 parts of oxygen consuming agent, 5-10 parts of expanding agent, 6-8 parts of shaping agent and 40-70 meshes of river sand and foaming phenolic resin particles as filler; the mass ratio of river sand to the foaming phenolic resin particles is 1 (2-4); the particle size of the foaming phenolic resin particles is 0.25-1cm; the foaming phenolic resin particles contain 15-25wt% of expanded graphite;
2) Stirring and mixing river sand and a lubricant, and then adding an oxygen consumption agent for mixing; the lubricant is 50-70wt% alkyl polyglucoside water solution; the oxygen consuming agent is copper powder with 40-70 meshes;
3) Heating the shaping agent to a molten state, adding the shaping agent, and stirring until the temperature of the mixed material is less than or equal to 50 ℃; the shaping agent is sodium stearate;
4) Adding and stirring an expanding agent and foaming phenolic resin particles to obtain a flame-retardant composition; the swelling agent is IFR.
River sand and foaming phenolic resin particles are compounded to be used as a filling agent in the formula 1 (2-4), and the oxygen consuming agent and the expanding agent can be well contained in the river sand under the combination of the mesh number of the river sand and the particle size of the foaming phenolic resin particles; the foaming phenolic resin particles strengthen the ductility of the whole flame-retardant composition, so that the filling degree and the fitting degree of the flame-retardant composition for tree holes are higher, and after the tree holes are on fire, the expansion agent is heated to break the filler, and the foaming phenolic resin particles have lower melting temperature and melt in a short time when the fire is on, so that the expanded graphite in the foaming phenolic resin particles also expands, and the secondary expansion of the flame-retardant composition greatly quickens the inhibition of the fire.
Example 1:
a method of preparing a flame retardant composition comprising:
1) The preparation is carried out according to the parts by weight: 40 parts of filler, 32 parts of lubricant, 6 parts of oxygen consuming agent, 6 parts of expanding agent, 6.5 parts of shaping agent, 10 parts of 45-mesh river sand and 30 parts of foaming phenolic resin particles containing 20wt% of expanded graphite; the particle size of the foaming phenolic resin particles is 0.8cm;
2) Placing river sand and a lubricant in a charging barrel, stirring and mixing for 5min at a rotating speed of 30rpm, and then adding an oxygen consuming agent and mixing for 3min at a rotating speed of 60 rpm; the lubricant is 55wt% alkyl polyglucoside water solution; the oxygen consumption agent is copper powder with 65 meshes;
3) Heating the shaping agent to a molten state, adding the shaping agent into a charging barrel, and stirring at a rotating speed of 60rpm until the temperature of the mixed material is less than or equal to 50 ℃; the shaping agent is sodium stearate;
4) Adding an expanding agent and foaming phenolic resin particles into a charging barrel, and stirring for 1min at a rotating speed of 60rpm to obtain a flame-retardant composition; the swelling agent is IFR.
Example 2:
a method of preparing a flame retardant composition comprising:
1) The preparation is carried out according to the parts by weight: 47 parts of filler, 38 parts of lubricant, 7 parts of oxygen consuming agent, 9 parts of expanding agent, 7.6 parts of shaping agent, 15 parts of 65-mesh river sand and 32 parts of foaming phenolic resin particles containing 16wt% of expanded graphite; the particle size of the foaming phenolic resin particles is 0.6cm;
2) Placing river sand and a lubricant in a charging barrel, stirring and mixing for 5min at a rotating speed of 30rpm, and then adding an oxygen consuming agent and mixing for 3min at a rotating speed of 60 rpm; the lubricant is a 60wt% aqueous solution of alkyl polyglucoside; the oxygen consumption agent is copper powder with 45 meshes;
3) Heating the shaping agent to a molten state, adding the shaping agent into a charging barrel, and stirring at a rotating speed of 60rpm until the temperature of the mixed material is less than or equal to 50 ℃; the shaping agent is sodium stearate;
4) Adding an expanding agent and foaming phenolic resin particles into a charging barrel, and stirring for 1min at a rotating speed of 60rpm to obtain a flame-retardant composition; the swelling agent is IFR.
Example 3:
a method of preparing a flame retardant composition comprising:
1) The preparation is carried out according to the parts by weight: 50 parts of filler, 35 parts of lubricant, 8 parts of oxygen consuming agent, 8 parts of expanding agent, 7 parts of shaping agent, and the filler is 12 parts of 60-mesh river sand and 38 parts of foaming phenolic resin particles containing 23 weight percent of expanded graphite; the particle size of the foaming phenolic resin particles is 0.4cm;
2) Placing river sand and a lubricant in a charging barrel, stirring and mixing for 5min at a rotating speed of 30rpm, and then adding an oxygen consuming agent and mixing for 3min at a rotating speed of 60 rpm; the lubricant is a 50wt% aqueous solution of alkyl polyglucoside; the oxygen consuming agent is copper powder with 60 meshes;
3) Heating the shaping agent to a molten state, adding the shaping agent into a charging barrel, and stirring at a rotating speed of 60rpm until the temperature of the mixed material is less than or equal to 50 ℃; the shaping agent is sodium stearate;
4) Adding an expanding agent and foaming phenolic resin particles into a charging barrel, and stirring for 1min at a rotating speed of 60rpm to obtain a flame-retardant composition; the swelling agent is IFR.
Comparative example 1:
a method of preparing a flame retardant composition comprising:
1) The preparation is carried out according to the parts by weight: 50 parts of filler, 35 parts of lubricant, 8 parts of oxygen consuming agent, 8 parts of expanding agent, 7 parts of shaping agent and 50 parts of 60-mesh river sand;
2) Placing river sand and a lubricant in a charging barrel, stirring and mixing for 5min at a rotating speed of 30rpm, and then adding an oxygen consuming agent and mixing for 3min at a rotating speed of 60 rpm; the lubricant is a 50wt% aqueous solution of alkyl polyglucoside; the oxygen consuming agent is copper powder with 60 meshes;
3) Heating the shaping agent to a molten state, adding the shaping agent into a charging barrel, and stirring at a rotating speed of 60rpm until the temperature of the mixed material is less than or equal to 50 ℃; the shaping agent is sodium stearate;
4) Adding an expanding agent into a charging barrel, and stirring for 1min at a rotating speed of 60rpm to obtain a flame-retardant composition; the swelling agent is IFR.
Comparative example 2:
a method of preparing a flame retardant composition comprising:
1) The preparation is carried out according to the parts by weight: 50 parts of filler, 35 parts of lubricant, 8 parts of oxygen consuming agent, 8 parts of expanding agent, 7 parts of shaping agent, and 12 parts of 60-mesh river sand and 38 parts of foaming phenolic resin particles without expanded graphite; the particle size of the foaming phenolic resin particles is 0.4cm;
2) Placing river sand and a lubricant in a charging barrel, stirring and mixing for 5min at a rotating speed of 30rpm, and then adding an oxygen consuming agent and mixing for 3min at a rotating speed of 60 rpm; the lubricant is a 50wt% aqueous solution of alkyl polyglucoside; the oxygen consuming agent is copper powder with 60 meshes;
3) Heating the shaping agent to a molten state, adding the shaping agent into a charging barrel, and stirring at a rotating speed of 60rpm until the temperature of the mixed material is less than or equal to 50 ℃; the shaping agent is sodium stearate;
4) Adding an expanding agent and foaming phenolic resin particles into a charging barrel, and stirring for 1min at a rotating speed of 60rpm to obtain a flame-retardant composition; the swelling agent is IFR.
Comparative example 3:
carboxymethyl starch thick slurry is used as a filling agent for tree hole restoration.
Comparative example 4:
the wood material long-acting flame retardant is selected: comprises organic phosphate, glycol ether compound, hydroxyl silicone oil compound and solvent.
Comparison experiment:
1, for experimental purposes, it is verified whether the flame retardant composition obtained by the invention plays a substantial flame retardant role in firing tree holes, and in addition, it is verified whether the flame retardant composition obtained by the invention has a toxic effect on trees.
2. In the experimental method, an experimental tree hole with the diameter of 5 cm is formed on a trunk of a litchi tree with the diameter of about 0.3 m by punching the trunk at an inclination of 45 degrees through a percussion drill (one experimental tree hole is only allowed to be punched), the lower end hole of the experimental tree hole is closed by using a transparent plastic film, experimental substances (examples 1-3, comparative examples 1-4 and blank comparative examples) are filled and filled from the upper end hole of the experimental tree hole after half a year, whether the litchi tree survives or not is observed after one year, and an inflating needle is used for penetrating the experimental tree hole from the plastic film and introducing methane gas, the inflating needle is pulled out immediately after the methane is detected by using combustible gas detection equipment at the upper end hole of the experimental tree hole, and the methane gas is ignited at the upper end hole of the experimental tree hole by using a lighter, and whether open flame exists in the experimental tree hole is observed after one minute. The experimental place is Guangzhou city district, the hole punching date is 2020 1 month and 19 days, the time for filling the experimental material is 2020 7 months and 20 days, and the observation survival and ignition date is 2022 1 month and 25 days. Survival = number of survivors/number of samples; flame retardant = number of samples that extinguished open flame in one minute of ignition/number of survives in surviving samples.
3. Experimental data are shown in table 1:
table 1 flame retardant test results
The data show that the invention has no toxic action on trees and can play a role similar to that of a tree hole filling agent. The experiment simulates the process of generating combustible gas by injecting methane gas to simulate the self-decay of the ancient tree, and then igniting methane to simulate the initial stage of spontaneous combustion of the ancient tree. The tree hole filling agent reduces the probability of spontaneous combustion by occupying more tree hole space by itself. Similarly, the invention takes the filler as a framework, and the shaping agent bonds adjacent fillers to form a solid object adapting to the shape of the internal space of the tree hole, thereby having the purposes of repairing the tree hole and resisting flame. Although the tree holes are inevitably and continuously enlarged under the action of tree growth and natural erosion, due to the existence of the expanding agent and the foaming phenolic resin particles, when the tree holes are spontaneous, the invention can make the filling agent block flame propagation and air flow through expansion. The open flame extinction efficiency of examples 1-3 is higher than comparative examples 1-2, demonstrating that the foamed phenolic resin particles and the foamed phenolic resin particles with the addition of expanded graphite greatly improved flame retardant efficiency. The higher survival rates of examples 1-3 and comparative example 2 compared to comparative example 1 demonstrate that the addition of the foamed phenolic resin particles facilitates continued tree growth.
The existing timber flame retardant obviously has strong toxic action on trees, 10 litchi trees in comparative example 4 are all withered in experiments, and even if the flame retardant has strong flame retardant effect, the flame retardant is not suitable for being used as an ancient tree flame retardant material.
In comparison with the three embodiments of the present invention, the effect of embodiment 3 is optimal.
The foregoing embodiments and description have been provided merely to illustrate the principles and best modes of carrying out the invention, and various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (7)
1. The flame-retardant composition is characterized by comprising the following active ingredients in parts by weight:
35-55 parts of filler;
30-40 parts of a lubricant;
5-10 parts of oxygen consuming agent;
5-10 parts of an expanding agent;
6-8 parts of shaping agent;
the filler is river sand and foaming phenolic resin particles, the lubricant is 50-70wt% of alkyl polyglucoside aqueous solution, the expanding agent is IFR, and the shaping agent is sodium stearate.
2. The flame retardant composition of claim 1, wherein: comprises the following active ingredients in parts by weight:
45 parts of filler;
35 parts of a lubricant;
8 parts of oxygen consuming agent;
8 parts of an expanding agent;
7 parts of shaping agent.
3. The flame retardant composition of claim 1, wherein: the river sand is 40-70 meshes; the mass ratio of the river sand to the foaming phenolic resin particles is 1 (2-4).
4. The flame retardant composition of claim 1, wherein: the oxygen consuming agent is copper powder with 40-70 meshes.
5. The flame retardant composition of claim 1, wherein: the foaming phenolic resin particles contain 15-25wt% of expanded graphite.
6. A method of preparing the flame retardant composition of claim 1, comprising:
preparing materials according to parts by weight; and, a step of, in the first embodiment,
stirring and mixing river sand and a lubricant, and then adding an oxygen consumption agent for mixing; and, a step of, in the first embodiment,
heating the shaping agent to a molten state, adding the shaping agent, and stirring until the temperature of the mixed material is less than or equal to 50 ℃; and, a step of, in the first embodiment,
adding and stirring the expanding agent and the foaming phenolic resin particles to obtain the flame-retardant composition.
7. The method of preparing a flame retardant composition of claim 6, comprising:
stirring and mixing river sand and a lubricant at a rotating speed of 30rpm, and then adding an oxygen consuming agent and mixing at a rotating speed of 60 rpm; and, a step of, in the first embodiment,
heating the shaping agent to a molten state, adding the shaping agent, and stirring the shaping agent at a rotating speed of 60rpm until the temperature of the mixed material is less than or equal to 50 ℃; and, a step of, in the first embodiment,
and adding the expanding agent and the foaming phenolic resin particles and stirring at a rotation speed of 60rpm to obtain the flame-retardant composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310463900.9A CN116376217B (en) | 2023-04-26 | 2023-04-26 | Flame-retardant composition and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310463900.9A CN116376217B (en) | 2023-04-26 | 2023-04-26 | Flame-retardant composition and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116376217A CN116376217A (en) | 2023-07-04 |
| CN116376217B true CN116376217B (en) | 2024-01-16 |
Family
ID=86976942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310463900.9A Active CN116376217B (en) | 2023-04-26 | 2023-04-26 | Flame-retardant composition and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116376217B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103408891A (en) * | 2013-08-09 | 2013-11-27 | 南通南京大学材料工程技术研究院 | High-molecular flame-retardant foam material and preparation method thereof |
| CN108651153A (en) * | 2018-05-21 | 2018-10-16 | 广州恒盛园林股份有限公司 | Treehole filler and treehole method for repairing and mending |
| KR101988943B1 (en) * | 2018-05-17 | 2019-06-13 | 신동식 | Method for manufacturing recycled fire retardant styrofoam using wasted fire retardant styrofoam and recycled fire retardant styrofoam manufactured by the same |
| CN110495319A (en) * | 2019-08-26 | 2019-11-26 | 浙江荣林环境股份有限公司 | A kind of ancient tree treatment method |
| AU2019101699A4 (en) * | 2019-12-24 | 2020-02-06 | Taiyuan City Vocational College | Vacuum Repair Method For Tree Holes Or Tree Pits |
-
2023
- 2023-04-26 CN CN202310463900.9A patent/CN116376217B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103408891A (en) * | 2013-08-09 | 2013-11-27 | 南通南京大学材料工程技术研究院 | High-molecular flame-retardant foam material and preparation method thereof |
| KR101988943B1 (en) * | 2018-05-17 | 2019-06-13 | 신동식 | Method for manufacturing recycled fire retardant styrofoam using wasted fire retardant styrofoam and recycled fire retardant styrofoam manufactured by the same |
| CN108651153A (en) * | 2018-05-21 | 2018-10-16 | 广州恒盛园林股份有限公司 | Treehole filler and treehole method for repairing and mending |
| CN110495319A (en) * | 2019-08-26 | 2019-11-26 | 浙江荣林环境股份有限公司 | A kind of ancient tree treatment method |
| AU2019101699A4 (en) * | 2019-12-24 | 2020-02-06 | Taiyuan City Vocational College | Vacuum Repair Method For Tree Holes Or Tree Pits |
Non-Patent Citations (2)
| Title |
|---|
| "樱花树洞修补技术及效果评价";李振明 等;《山东林业科技》(第1期);第92-100页 * |
| 丁世民主编.《园林绿地养护技术》.中国农业大学出版社,2009,第177-180页. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116376217A (en) | 2023-07-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105440657A (en) | External wall thermal insulation material and preparation method thereof | |
| WO2020151191A1 (en) | Economical and environmentally friendly gel foam for preventing autoignition of coal | |
| CN106866063A (en) | A kind of flame retardant type inorganic compounding EPS warming plates and preparation method thereof | |
| CN103435970B (en) | A kind of modified phenolic foam for wall thermal insulating and preparation method thereof | |
| CN105670231B (en) | The preparation method of inflatable carbonitride fire retarding epoxide resin | |
| CN106738149B (en) | The manufacture method and its expandable flame retardant timber of a kind of expandable flame retardant timber of decalescence | |
| CN204775874U (en) | Multi -functional marine floating platform of modularization | |
| CN103102641B (en) | Modified phenolic aldehyde insulation foamed material preparation method | |
| CN110433445B (en) | Low-temperature water-based extinguishing agent and preparation method thereof | |
| CN103435769B (en) | Solar water heater water tank inorganic fire foaming thermal-insulating | |
| CN110527054B (en) | Flame-retardant rigid polyurethane foam material and preparation method and application thereof | |
| CN116376217B (en) | Flame-retardant composition and preparation method thereof | |
| CN112980262A (en) | Water-based intumescent fire retardant coating for indoor steel structure and preparation method thereof | |
| CN110451852B (en) | Self-degradation low-density temporary plugging cement suitable for high-temperature geothermal well and preparation method thereof | |
| CN113416440B (en) | Coal mine tunnel gas-blocking-proof coating | |
| US3577363A (en) | Cellular plastics material containing polystyrene and a process for its manufacture | |
| CN103435927A (en) | A-grade flame retardant modified polystyrene board and preparation method thereof | |
| CN104631737B (en) | The preparation method of polystyrene A level noncombustible construction outer wall heat insulating and decorating plates | |
| CN114230257B (en) | High-temperature-resistant heat-insulating material for building and preparation method thereof | |
| CN110283351A (en) | A kind of flame retarded rigid polyurethane foams plastics and preparation method thereof | |
| CN114470600A (en) | Foam gel fire prevention and extinguishing material | |
| CN109232979A (en) | A kind of phosphorous nitrogenous siliceous expansion type flame retardant | |
| CN109505575A (en) | Combustible plugging method for water flooding fire flooding oil reservoir | |
| CN114949718A (en) | Hydrogel air-leakage-blocking fire-extinguishing material, preparation method and application thereof, coal spontaneous combustion preventing method and fire extinguishing method | |
| CN106947276A (en) | A kind of oil-tea camellia husks base fire-resistant composite material and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |