CN109897273A - A kind of EVA foam and preparation method thereof of composite flame-retardant agent graft modification - Google Patents
A kind of EVA foam and preparation method thereof of composite flame-retardant agent graft modification Download PDFInfo
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- CN109897273A CN109897273A CN201910200997.8A CN201910200997A CN109897273A CN 109897273 A CN109897273 A CN 109897273A CN 201910200997 A CN201910200997 A CN 201910200997A CN 109897273 A CN109897273 A CN 109897273A
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Abstract
The invention discloses a kind of EVA foams and preparation method thereof of composite flame-retardant agent graft modification, belong to high molecule composite foaming material field.The eva foam composite material is prepared from the following raw materials: EVA, composite flame-retardant agent, maleic anhydride are grafted EVA, foaming agent, stearic acid, zinc stearate, zinc oxide, crosslinking agent, the composite flame-retardant agent is modified DOPO/ graphene oxide composite material, constructs efficient fire-retardant EVA system.This foamed material not only has the advantages that few fire retardant additive amount, Halogen, effect stability；Also stable mechanical property is kept, is with a wide range of applications.
Description
Technical field
The invention belongs to high molecule composite foaming material fields, and in particular to a kind of EVA of composite flame-retardant agent graft modification
Foamed material preparation method.
Background technique
EVA foam composite material is transported extensively due to having many advantages, such as that density is small, bumper and absorbing shock ability is strong, lower temperature resistance
For fields such as footwear material, building, packagings.However EVA belongs to combustible material, easily causes fire during use, to the people
Property and personal safety there is very big threat, therefore limit its application field.To improve the flame retardant property of EVA to EVA
Middle addition fire retardant is a kind of universal fire-retardant mode.Although traditional halogenated flame retardant can bring material good anti-flammability
Can, but a large amount of smog and toxic, mordant hydrogen halide can be generated during burning, do not meet environment friend
The requirement of good type development, has been prohibited from using.Metal hydroxides is non-volatile, does not generate toxic and harmful gas, it is considered to be
Most promising fire retardant, has been favored by people.But metal hydroxides will make flame retardant property for fire retardant polyolefin
Reach certain requirement, for additive amount usually 60% or more, so big additive amount makes the processing performance and power of composite material
Performance is learned by serious influence.
Compared with other organic and inorganic fill fire retardant, DOPO based flameproofing is simultaneous as phosphorus flame retardant and graphene
The features such as tool is efficient, environmentally friendly, has great application prospect.Therefore, phosphorus system/graphene compound flame retardant is added in EVA, is closed
It is meaningful at a kind of stable fire-retardant eva foam composite material of flame retardant effect.
Summary of the invention
For overcome the deficiencies in the prior art, the purpose of the present invention is to provide a kind of fire-retardant eva foam composite material and
Preparation method, the material not only have the advantages that few fire retardant additive amount, Halogen, effect stability；Also stable mechanics is kept
Performance is with a wide range of applications.
In order to achieve the above objectives, the present invention is achieved by the following technical solutions:
A kind of EVA foam of composite flame-retardant agent graft modification, raw material composition includes: ethyl vinyl acetate in parts by weight
80-100 parts of ethylene copolymer EVA, 1-10 parts of composite flame-retardant agent, maleic anhydride be grafted EVA 1-10 parts, 10-30 parts of talcum powder,
2.8-3.5 parts of blowing agent AC, 1.5 parts of stearic acid, 0.5 part of zinc stearate, 0.8 part of zinc oxide and cumyl peroxide
0.8 part of DCP；The composite flame-retardant agent is modified DOPO/ graphene oxide composite material.
The VA content of the ethylene-vinyl acetate copolymer EVA is 18-28wt%.The maleic anhydride is grafted EVA
Grafting rate is 2%.
The modification DOPO/ graphene oxide composite flame-proof material is trihydroxy methyl phosphine oxide THPO and graphene oxide
What composite modified DOPO was obtained, specifically includes the following steps:
1) by 2.0g trihydroxy methyl phosphine oxide THPO, 12.5g DOPO, 5 DEG C of ice bath or less are dissolved in 200mL ethyl alcohol and stir equal
It is even；
2) until completely dissolved, by 8.5g CCl4Solution is slowly added in the solution of step 1), is stirred 6 hours at 30 DEG C of water-bath,
0.6g graphene oxide is added, the reaction was continued 4 hours；
3) vacuum baking is placed in remove impurity by the filtering of modification DOPO/ graphene oxide composite material, the centrifugation of acquisition 2-4 times
It is dry in case.
The preparation method of the EVA foam of composite flame-retardant agent graft modification as described above, specifically includes the following steps:
1) ethylene-vinyl acetate copolymer EVA, composite flame-retardant agent, maleic anhydride are grafted EVA, talcum powder, stearic acid, tristearin
Sour zinc, zinc oxide, cumyl peroxide DCP and blowing agent AC are uniformly mixed and are placed in preheated extruder, each area's temperature
Degree is 105-115 DEG C, squeezes out and is kneaded under the conditions of revolving speed 20rpm；
2) mixture obtained by step 1) is quickly transferred to after being kneaded 10-20min in open mill, material is suppressed into flakiness；
3) it by sheet material made from step 2, is placed in preheated vulcanizing press die cavity, the moulded from foam at 10MPa, 170 DEG C
6min obtains the EVA foam of composite flame-retardant agent graft modification.
The beneficial effects of the present invention are:
1, modified DOPO possesses different P groups, the free radicals such as PO can quench the high activity that pyrolysis generates H and
OH free radical simultaneously hinders radical chain reaction, realize and strengthens gas phase and is fire-retardant.Compared with single DOPO fire retardant, improve
Flame retarding efficiency.
2, graphene oxide GO contains on surface active group, improves system binding force and stability, while GO is as synergistic
Agent, can generate compact and stable protectiveness carburization zone in material primary combustion, extend small molecule to surface migration, with
The heat that DOPO synergistic effect, starvation and burning generate is transmitted to material internal, is realized that condensed phase is fire-retardant, is constructed efficiently
Flame retardant systems.
3, using maleic anhydride grafting EVA dry method grafting, phase of each material especially fire retardant in EVA matrix is increased
Capacitive, it is not easy to reunite, to effectively raise flame retardant property of the invention.
Detailed description of the invention
Fig. 1 is the XRD diagram of graphene oxide (a) and modified DOPO/ graphene oxide (b)；
Fig. 2 is graphene oxide (a) and the SEM figure of modified DOPO/ graphene oxide (b).
Specific embodiment
Below in conjunction with specific embodiment, the present invention will be further described, but the present invention is not limited only to these embodiments.
Embodiment 1
A kind of preparation method of the EVA foam of composite flame-retardant agent graft modification, specifically includes the following steps:
1) by 2.0g trihydroxy methyl phosphine oxide THPO, 12.5g DOPO, 5 DEG C of ice bath or less are dissolved in 200mL ethyl alcohol and stir equal
It is even；
2) until completely dissolved, by 8.5g CCl4Solution is slowly added in the solution of step 1), is stirred 6 hours at 30 DEG C of water-bath,
0.6g graphene oxide is added, the reaction was continued 4 hours；
3) vacuum baking is placed in remove impurity by the filtering of modification DOPO/ graphene oxide composite flame-retardant agent, the centrifugation of acquisition 3 times
It is dry in case；
4) by 90 parts of EVA, 2 parts by weight composite flame-retardant agents, 6 parts by weight maleic anhydride grafting EVA, 15 parts by weight talcum powder,
1.5 parts by weight stearic acid, 0.5 parts by weight zinc stearate, 0.8 part by weight of zinc oxide, 0.8 parts by weight cumyl peroxide DCP
It is uniformly mixed and is placed in preheated extruder with 3 parts by weight of blowing agent AC, each area's temperature is 110 DEG C, revolving speed 20rpm condition
Lower extrusion is kneaded；
5) mixture obtained by step 4) is quickly transferred to after being kneaded 15min in open mill, material is suppressed into flakiness；
6) it by sheet material made from step 5), is placed in preheated vulcanizing press die cavity, the moulded from foam at 10MPa, 170 DEG C
6min obtains the EVA foam of composite flame-retardant agent graft modification.
Embodiment 2
A kind of preparation method of the EVA foam of composite flame-retardant agent graft modification, specifically includes the following steps:
1) by 2.0g trihydroxy methyl phosphine oxide THPO, 12.5g DOPO, 5 DEG C of ice bath or less are dissolved in 200mL ethyl alcohol and stir equal
It is even；
2) until completely dissolved, by 8.5g CCl4Solution is slowly added in the solution of step 1), is stirred 6 hours at 30 DEG C of water-bath,
0.6g graphene oxide is added, the reaction was continued 4 hours；
3) vacuum baking is placed in remove impurity by the filtering of modification DOPO/ graphene oxide composite flame-retardant agent, the centrifugation of acquisition 3 times
It is dry in case；
4) by 90 parts of EVA, 4 parts by weight composite flame-retardant agents, 8 parts by weight maleic anhydride grafting EVA, 15 parts by weight talcum powder,
1.5 parts by weight stearic acid, 0.5 parts by weight zinc stearate, 0.8 part by weight of zinc oxide, 0.8 parts by weight cumyl peroxide DCP
It is uniformly mixed and is placed in preheated extruder with 3 parts by weight of blowing agent AC, each area's temperature is 110 DEG C, revolving speed 20rpm condition
Lower extrusion is kneaded；
5) mixture obtained by step 4) is quickly transferred to after being kneaded 15min in open mill, material is suppressed into flakiness；
6) it by sheet material made from step 5), is placed in preheated vulcanizing press die cavity, the moulded from foam at 10MPa, 170 DEG C
6min obtains the EVA foam of composite flame-retardant agent graft modification.
Embodiment 3
A kind of preparation method of the EVA foam of composite flame-retardant agent graft modification, specifically includes the following steps:
1) by 2.0g trihydroxy methyl phosphine oxide THPO, 12.5g DOPO, 5 DEG C of ice bath or less are dissolved in 200mL ethyl alcohol and stir equal
It is even；
2) until completely dissolved, by 8.5g CCl4Solution is slowly added in the solution of step 1), is stirred 6 hours at 30 DEG C of water-bath,
0.6g graphene oxide is added, the reaction was continued 4 hours；
3) by the filtering of modification DOPO/ graphene oxide composite flame-retardant agent, the centrifugation of acquisition 2 times to remove impurity.It is placed in vacuum baking
It is dry in case；
4) by 90 parts of EVA, 6 parts by weight composite flame-retardant agents, 8 parts by weight maleic anhydride grafting EVA, 15 parts by weight talcum powder,
1.5 parts by weight stearic acid, 0.5 parts by weight zinc stearate, 0.8 part by weight of zinc oxide, 0.8 parts by weight cumyl peroxide DCP
It is uniformly mixed and is placed in preheated extruder with 3 parts by weight of blowing agent AC, each area's temperature is 105 DEG C, revolving speed 20rpm condition
Lower extrusion is kneaded；
5) mixture obtained by step 4) is quickly transferred to after being kneaded 10min in open mill, material is suppressed into flakiness；
6) it by sheet material made from step 5), is placed in preheated vulcanizing press die cavity, the moulded from foam at 10MPa, 170 DEG C
6min obtains the EVA foam of composite flame-retardant agent graft modification.
Embodiment 4
A kind of preparation method of the EVA foam of composite flame-retardant agent graft modification, specifically includes the following steps:
1) by 2.0g trihydroxy methyl phosphine oxide THPO, 12.5g DOPO, 5 DEG C of ice bath or less are dissolved in 200mL ethyl alcohol and stir equal
It is even；
2) until completely dissolved, by 8.5g CCl4Solution is slowly added in the solution of step 1), is stirred 6 hours at 30 DEG C of water-bath,
0.6g graphene oxide is added, the reaction was continued 4 hours；
3) by the filtering of modification DOPO/ graphene oxide composite flame-retardant agent, the centrifugation of acquisition 4 times to remove impurity.It is placed in vacuum baking
It is dry in case；
4) by 90 parts of EVA, 8 parts by weight composite flame-retardant agents, 10 parts by weight maleic anhydride grafting EVA, 15 parts by weight talcum powder,
1.5 parts by weight stearic acid, 0.5 parts by weight zinc stearate, 0.8 part by weight of zinc oxide, 0.8 parts by weight cumyl peroxide DCP
It is uniformly mixed and is placed in preheated extruder with 3 parts by weight of blowing agent AC, each area's temperature is 115 DEG C, revolving speed 20rpm condition
Lower extrusion is kneaded；
5) mixture obtained by step 4) is quickly transferred to after being kneaded 20min in open mill, material is suppressed into flakiness；
6) it by sheet material made from step 5), is placed in preheated vulcanizing press die cavity, the moulded from foam at 10MPa, 170 DEG C
6min obtains the EVA foam of composite flame-retardant agent graft modification.
Comparative example 1
A kind of preparation method of EVA foam, specifically includes the following steps:
1) by 90 parts of EVA, 15 parts by weight talcum powder, 1.5 parts by weight stearic acid, 0.5 parts by weight zinc stearate, 0.8 weight
Part zinc oxide, 0.8 parts by weight cumyl peroxide DCP and 3 parts by weight of blowing agent AC, which are uniformly mixed, is placed on preheated squeeze
Out in machine, each area's temperature is 110 DEG C, squeezes out and is kneaded under the conditions of revolving speed 20rpm；
2) mixture obtained by step 2 is quickly transferred to after being kneaded 15min in open mill, material is suppressed into flakiness；
3) it by sheet material made from step 3), is placed in preheated vulcanizing press die cavity, the moulded from foam at 10MPa, 170 DEG C
6min obtains the EVA foam of composite flame-retardant agent graft modification.
It follows relevant criterion to be tested for the property embodiment 1-4 product and 1 product of comparative example, the results are shown in Table 1:
The mechanical property of 1 embodiment product of table
Curve a occurs sharp diffraction maximum at 10.5 ° and shows graphite corresponding to the characteristic diffraction peak of graphene oxide in Fig. 1
It has been oxidized to graphene oxide.And the diffraction peak intensity of curve b decreases, and is moved to the left to 9.2 °, shows layer
Spacing further increases, and is to be reacted due to modified DOPO with the oxygen-containing functional group of GO, has widened the distance of GO piece interlayer.
A in Fig. 2 can be seen that the lamellar structure for the fold that the surface GO is contained, and the fold that the b in Fig. 2 occurs is brighter
It is aobvious, it is to increase degree of folding because introducing modified DOPO, and the shade of some bulks occurs in surface, shows that modified DOPO connects
Branch has arrived the surface GO.
The foregoing is merely presently preferred embodiments of the present invention, all equivalent changes done according to scope of the present invention patent with
Modification, is all covered by the present invention.
Claims (6)
1. a kind of EVA foam of composite flame-retardant agent graft modification, it is characterised in that: the composition of the foamed material according to
Parts by weight meter includes: 80-100 parts of ethylene-vinyl acetate copolymer EVA, 1-10 parts of composite flame-retardant agent, maleic anhydride grafting
3-10 parts of EVA, 10-30 parts of talcum powder, 2.8-3.5 parts of blowing agent AC, 1.5 parts of stearic acid, 0.5 part of zinc stearate, oxidation
0.8 part and 0.8 part of cumyl peroxide DCP of zinc；The composite flame-retardant agent is modified DOPO/ graphene oxide composite wood
Material.
2. the EVA foam of composite flame-retardant agent graft modification as described in claim 1, it is characterised in that: the ethylene-
The VA content of vinyl acetate copolymer eva is 18-28wt%.
3. the EVA foam of composite flame-retardant agent graft modification as described in claim 1, it is characterised in that: the Malaysia
It is 2% that acid anhydrides, which is grafted EVA grafting rate,.
4. the EVA foam of composite flame-retardant agent graft modification as described in claim 1, it is characterised in that: the modification
DOPO/ graphene oxide composite material is that trihydroxy methyl phosphine oxide THPO and the composite modified DOPO of graphene oxide are obtained.
5. the EVA foam of composite flame-retardant agent graft modification according to claim 4, it is characterised in that: described changes
The property specific preparation method of DOPO/ graphene oxide composite material includes the following steps:
1) by 2.0g trihydroxy methyl phosphine oxide THPO, 12.5g DOPO, 5 DEG C of ice bath or less are dissolved in 200mL ethyl alcohol and stir equal
It is even；
2) until completely dissolved, by 8.5g CCl4Solution is slowly added in the solution of step 1), is stirred 6 hours at 30 DEG C of water-bath,
0.6g graphene oxide is added, the reaction was continued 4 hours；
3) vacuum baking is placed in remove impurity by the filtering of modification DOPO/ graphene oxide composite material, the centrifugation of acquisition 2-4 times
It is dry in case.
6. a kind of preparation for the EVA foam for preparing composite flame-retardant agent graft modification as described in any one in claim 1-5
Method, it is characterised in that: the following steps are included:
1) ethylene-vinyl acetate copolymer EVA, composite flame-retardant agent, maleic anhydride are grafted EVA, talcum powder, stearic acid, tristearin
Sour zinc, zinc oxide, cumyl peroxide DCP and blowing agent AC are uniformly mixed and are placed in preheated extruder, each area's temperature
Degree is 105-115 DEG C, squeezes out and is kneaded under the conditions of revolving speed 20rpm；
2) mixture obtained by step 1) is quickly transferred to after being kneaded 10-20min in open mill, material is suppressed into flakiness；
3) it by sheet material made from step 2, is placed in preheated vulcanizing press die cavity, the moulded from foam at 10MPa, 170 DEG C
6min obtains the EVA foam of composite flame-retardant agent graft modification.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110408276A (en) * | 2019-08-10 | 2019-11-05 | 国网福建省电力有限公司 | A kind of long cable section of ingoing line fireproof blocking material |
| CN110938250A (en) * | 2019-11-14 | 2020-03-31 | 浙江恒诚鞋业有限公司 | Foamed sole and preparation method thereof |
| CN110964239A (en) * | 2019-12-25 | 2020-04-07 | 福州大学 | Environment-friendly wear-resistant flame-retardant EVA foam composite material |
| CN111303616A (en) * | 2020-04-22 | 2020-06-19 | 福州大学 | Graphene oxide grafted phosphorus-containing maleic acid flame-retardant auxiliary agent and preparation method and application thereof |
| EP3926001A1 (en) * | 2020-06-15 | 2021-12-22 | swisspor Management AG | Halogen-free, flame-retardant foamed thermoplastic polymer |
| CN114921227A (en) * | 2022-06-17 | 2022-08-19 | 陕西科技大学 | DT-WPU coal flame-retardant dust suppressant and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106883450A (en) * | 2017-02-20 | 2017-06-23 | 无锡市惠山区川大石墨烯应用研究中心 | A kind of rich phosphatization Graphene fire retardant and preparation method thereof |
| CN107245182A (en) * | 2017-06-21 | 2017-10-13 | 常州碳润新材料科技有限公司 | A kind of APP/graphene cooperative flame retardant EVA expanded materials and preparation method thereof |
| CN108976588A (en) * | 2018-08-02 | 2018-12-11 | 福州大学 | A kind of flame-retardant and anti-static eva foam composite material and preparation method |
-
2019
- 2019-03-18 CN CN201910200997.8A patent/CN109897273B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106883450A (en) * | 2017-02-20 | 2017-06-23 | 无锡市惠山区川大石墨烯应用研究中心 | A kind of rich phosphatization Graphene fire retardant and preparation method thereof |
| CN107245182A (en) * | 2017-06-21 | 2017-10-13 | 常州碳润新材料科技有限公司 | A kind of APP/graphene cooperative flame retardant EVA expanded materials and preparation method thereof |
| CN108976588A (en) * | 2018-08-02 | 2018-12-11 | 福州大学 | A kind of flame-retardant and anti-static eva foam composite material and preparation method |
Non-Patent Citations (1)
| Title |
|---|
| JUNLING WANG 等: "《Polymer Degradation and Stability》", 31 December 2018 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110408276A (en) * | 2019-08-10 | 2019-11-05 | 国网福建省电力有限公司 | A kind of long cable section of ingoing line fireproof blocking material |
| CN110408276B (en) * | 2019-08-10 | 2021-07-06 | 国网福建省电力有限公司 | Material for cable incoming line fireproof plugging |
| CN110938250A (en) * | 2019-11-14 | 2020-03-31 | 浙江恒诚鞋业有限公司 | Foamed sole and preparation method thereof |
| CN110964239A (en) * | 2019-12-25 | 2020-04-07 | 福州大学 | Environment-friendly wear-resistant flame-retardant EVA foam composite material |
| WO2021128809A1 (en) * | 2019-12-25 | 2021-07-01 | 福州大学 | Environment-friendly wear-resistant flame-retardant eva foam composite material |
| CN110964239B (en) * | 2019-12-25 | 2021-08-31 | 福州大学 | Environment-friendly wear-resistant flame-retardant EVA foam composite material |
| CN111303616A (en) * | 2020-04-22 | 2020-06-19 | 福州大学 | Graphene oxide grafted phosphorus-containing maleic acid flame-retardant auxiliary agent and preparation method and application thereof |
| CN111303616B (en) * | 2020-04-22 | 2021-06-22 | 福州大学 | Graphene oxide grafted phosphorus-containing maleic acid flame-retardant auxiliary agent and preparation method and application thereof |
| EP3926001A1 (en) * | 2020-06-15 | 2021-12-22 | swisspor Management AG | Halogen-free, flame-retardant foamed thermoplastic polymer |
| CN114921227A (en) * | 2022-06-17 | 2022-08-19 | 陕西科技大学 | DT-WPU coal flame-retardant dust suppressant and preparation method thereof |
| CN114921227B (en) * | 2022-06-17 | 2024-04-19 | 陕西科技大学 | Flame-retardant dust suppressant for coal and preparation method thereof |
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