CN103113651A - Method for producing high-foaming EPE pearl wool by use of carbon dioxide foaming agent - Google Patents
Method for producing high-foaming EPE pearl wool by use of carbon dioxide foaming agent Download PDFInfo
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- CN103113651A CN103113651A CN2013100290298A CN201310029029A CN103113651A CN 103113651 A CN103113651 A CN 103113651A CN 2013100290298 A CN2013100290298 A CN 2013100290298A CN 201310029029 A CN201310029029 A CN 201310029029A CN 103113651 A CN103113651 A CN 103113651A
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Abstract
The invention discloses a method for producing high-foaming EPE pearl wool by use of a carbon dioxide foaming agent. The EPE pearl wool is prepared from the following raw materials in parts by weight: 60-100 parts of LDPE, 0-40 parts of LLDPE, 30-40 parts of EVA, 15-25 parts of talcum powder, 10-15 parts of light calcium carbonate, 20-30 parts of water glass, 10-15 parts of plant straw powder, 2-3 parts of modified tree ash, 0.5-1 part of isopropyl tri(dioctylpyrophosphate)titanate, 0.5-0.8 part of glycerin monostearate and 0.05-0.1 part of foaming agent carbon dioxide. Through the invention, the produced EPE pearl wool has the advantages of high elasticity, light weight, softness, high strength, good impact resistance, ideal foaming effect, uniform pores, fineness and compactness, good buffer shock prevention, good flame retardance, chemical corrosion resistance, aging resistance and durability.
Description
Technical field
The present invention relates to a kind of method that adopts carbon dioxide foaming agent to produce high-foaming EPE PE Foam, belong to field of high polymer material processing.
Background technology
Polyethylene foams (EPE), be commonly called as PE Foam, a kind of novel environment friendly wrapping material with high-strength surge capability, it is one of cushioning material important in the modern transportation packing, have lightweight, but flexible, rub resistance, excellent performance characteristics such as energy absorption burning disposal are arranged, and overcome the EPS(prefoaming polystyrene), the product such as paper mould is frangible, yielding, recovery is poor and the shortcoming of vibrationproof ability.Simultaneously, EPE has insulation, protection against the tide, abrasion-proof, a series of superior service performances such as corrosion-resistant, after adding antistatic agent, fire retardant, more aobvious its remarkable performance, be widely used in internal packing and the packaging orientation of the products such as electronic product, instrument, furniture, floor, glass, pottery, artwork, simultaneously used as insulation, the field such as heat insulation.
EPE PE Foam goods on present China market, the overwhelming majority is made through the butane physical blowing by ldpe resin (LDPE), adopt butane gas as whipping agent, has cost low, but its shortcoming is inflammable, because the surface friction meeting produces a large amount of static charges, and the spark of generation of static electricity very easily ignites and contains the sheet material of gas the thin tablet material of finished product in producing coiling process, thereby causes fire.
Summary of the invention
The object of the invention is to for the deficiencies in the prior art, provide a kind of method that adopts carbon dioxide foaming agent to produce high-foaming EPE PE Foam, to alleviate the danger of production process.
The technical solution used in the present invention is as follows:
A kind of method that adopts carbon dioxide foaming agent to produce high-foaming EPE PE Foam comprises the following steps:
(1) raw material preparation comprises: LDPE 60-100, LLDPE 0-40, EVA 30-40, talcum powder 15-25, light calcium carbonate 10-15, water glass 20-30, plant straw powder 10-15, modification trees ashes 2-3, sec.-propyl three (dioctylphyrophosphoric acid acyloxy) titanic acid ester 0.5-1, glyceryl monostearate 0.5-0.8, whipping agent carbonic acid gas 0.05-0.1 by weight.
(2) talcum powder and light calcium carbonate is dry, after crossing the 100-150 mesh sieve, add in high-speed mixer with sec.-propyl three (dioctylphyrophosphoric acid acyloxy) titanic acid ester, speed with 500-1000rpm under 110-120 ℃ mixes 20-30min, then after adding water glass to continue to stir 10-15min, then adds plant straw powder with the speed blend 5-10min of 1500-2000rpm, send into granulation in tablets press, particle diameter is controlled at 0.2-0.3mm, and oven dry namely gets the plant straw powder coatedparticles;
(3) EVA is added in twin screw extruder, be warming up to 110-120 ℃, when it becomes molten state, the plant straw powder coatedparticles that adds step (2) to make, melt blending 10-20min under the rotating speed of 400-600rpm, then extruding pelletization, be cooled to normal temperature and namely get the EVA coating particles;
(4) the EVA coating particles that step (3) is made and LDPE, LLDPE, modification trees ashes, glyceryl monostearate count heat fused in EPE foaming unit, make it abundant melting mixing in machine, add the thermosetting polymer melt;
(5) with the pressure implanter group end of whipping agent carbonic acid gas with 10-50kg/cm2, after the melt of carbon dioxide foaming agent and Low Density Polyethylene fully mixes by mould extrude, cooling, finalize the design, flatten, draw, batch and obtain EPE PE Foam sheet material.
The total weight parts of described LDPE and LLDPE is 100.
Described modification trees ashes are made by following method: first boil trees ashes 20-30min with the 15-20% hydrogen peroxide, clean with distilled water again, be placed in the drying in oven of 110-120 ℃, the polyisobutene, 2-3% polyethylene wax, the tributyl citrate of 1-2%, the aluminium hydroxide of 3-5% that add the sodium lignosulfonate that is equivalent to trees ashes weight 2-3%, 3-4%, stir 2-3h 80-90 ℃ of water-bath high speed, oven dry, pulverizing grinds to form ultrafine powder and gets final product.
Beneficial effect of the present invention:
The present invention is by carrying out modification to the trees ashes, trees ashes and poly interface binding intensity have obviously been improved, under external force, modification trees ashes particle plays the effect of bearing stress and dispersive stress effectively in foam material, and bring out matrix resin generation plastic deformation, thereby mechanical property and the buffering anti-seismic performances such as tensile strength, shock strength and modulus in flexure of foam material have been improved.The present invention passes through formula adjustment and process modification, utilize plant straw powder coated talc powder, light calcium carbonate, make the plant straw powder coatedparticles, coat the plant straw powder coatedparticles with EVA again, twice coating can obviously improve talcum powder, light calcium carbonate and poly consistency, can improve simultaneously the structure of foam material, obtain higher bubble density and less cell diameter, thereby improve shock strength and the physical and mechanical properties of foam material.The EPE PE Foam high resilience that the present invention produces, light weight are soft, intensity is high, good impact resistance, foaming effect is desirable, abscess is even, tiny densification, buffering shock resistance are good, good flame resistance, and resistance to chemical attack is ageing-resistant, durable in use.
Embodiment
A kind of method that adopts carbon dioxide foaming agent to produce high-foaming EPE PE Foam comprises the following steps:
(1) raw material preparation, (kg) comprising by weight: LDPE 80, LLDPE 20, EVA 35, talcum powder 20, light calcium carbonate 12, water glass 28, plant straw powder 13, modification trees ashes 2, sec.-propyl three (dioctylphyrophosphoric acid acyloxy) titanic acid ester 0.8, glyceryl monostearate 0.6, whipping agent carbonic acid gas 0.07.
(2) talcum powder and light calcium carbonate is dry, after crossing 150 mesh sieves, add in high-speed mixer with sec.-propyl three (dioctylphyrophosphoric acid acyloxy) titanic acid ester, speed with 1000rpm under 110 ℃ mixes 20min, then after adding water glass to continue to stir 10min, then adds plant straw powder with the speed blend 6min of 2000rpm, send into granulation in tablets press, particle diameter is controlled at 0.2mm, and oven dry namely gets the plant straw powder coatedparticles;
(3) EVA is added in twin screw extruder, be warming up to 115 ℃, when it becomes molten state, the plant straw powder coatedparticles that adds step (2) to make, melt blending 15min under the rotating speed of 500rpm, then extruding pelletization, be cooled to normal temperature and namely get the EVA coating particles;
(4) the EVA coating particles that step (3) is made and LDPE, LLDPE, modification trees ashes, glyceryl monostearate count heat fused in EPE foaming unit, make it abundant melting mixing in machine, add the thermosetting polymer melt;
(5) with the pressure implanter group end of whipping agent carbonic acid gas with 25kg/cm2, after the melt of carbon dioxide foaming agent and Low Density Polyethylene fully mixes by mould extrude, cooling, finalize the design, flatten, draw, batch and obtain EPE PE Foam sheet material.
Wherein, described modification trees ashes are made by following method: first boil trees ashes 20min with 18% hydrogen peroxide, clean with distilled water again, be placed in the drying in oven of 110 ℃, add the sodium lignosulfonate that is equivalent to trees ashes weight 3%, 4% polyisobutene, 2% polyethylene wax, 2% tributyl citrate, 5% aluminium hydroxide, stir 2h 90 ℃ of water-bath high speeds, oven dry, pulverizing grinds to form ultrafine powder and gets final product.
The performance test of the EPE PE Foam that the present invention produces is as shown in the table:
| Test item | Result |
| Tensile strength (kg/m 2） | 5.9 |
| Shock strength (kJm -2） | 12.4 |
| Impact rebound degree (%) | 48 |
| Tear strength (kNm -1） | 136 |
| Elongation at break (%) | 198 |
| Compressive strength (kg/m 2） | 5.5 |
| Compression set (%) | 21 |
| Modulus in flexure (MPa) | 152 |
| Winter hardiness | Subzero 30 ℃ were not chapped in 8 hours |
| Thermotolerance | 60 ℃ are not clamminess |
| Acid resistance (estimating changing conditions soak 24h in 20% sulphuric acid soln after) | Unchanged |
Claims (3)
1. a method that adopts carbon dioxide foaming agent to produce high-foaming EPE PE Foam, is characterized in that, comprises the following steps:
(1) raw material preparation comprises: LDPE 60-100, LLDPE 0-40, EVA 30-40, talcum powder 15-25, light calcium carbonate 10-15, water glass 20-30, plant straw powder 10-15, modification trees ashes 2-3, sec.-propyl three (dioctylphyrophosphoric acid acyloxy) titanic acid ester 0.5-1, glyceryl monostearate 0.5-0.8, whipping agent carbonic acid gas 0.05-0.1 by weight;
(2) talcum powder and light calcium carbonate is dry, after crossing the 100-150 mesh sieve, add in high-speed mixer with sec.-propyl three (dioctylphyrophosphoric acid acyloxy) titanic acid ester, speed with 500-1000rpm under 110-120 ℃ mixes 20-30min, then after adding water glass to continue to stir 10-15min, then adds plant straw powder with the speed blend 5-10min of 1500-2000rpm, send into granulation in tablets press, particle diameter is controlled at 0.2-0.3mm, and oven dry namely gets the plant straw powder coatedparticles;
(3) EVA is added in twin screw extruder, be warming up to 110-120 ℃, when it becomes molten state, the plant straw powder coatedparticles that adds step (2) to make, melt blending 10-20min under the rotating speed of 400-600rpm, then extruding pelletization, be cooled to normal temperature and namely get the EVA coating particles;
(4) the EVA coating particles that step (3) is made and LDPE, LLDPE, modification trees ashes, glyceryl monostearate count heat fused in EPE foaming unit, make it abundant melting mixing in machine, add the thermosetting polymer melt;
(5) with the pressure implanter group end of whipping agent carbonic acid gas with 10-50kg/cm2, after the melt of carbon dioxide foaming agent and Low Density Polyethylene fully mixes by mould extrude, cooling, finalize the design, flatten, draw, batch and obtain EPE PE Foam sheet material.
2. employing carbon dioxide foaming agent according to claim 1 is produced the method for high-foaming EPE PE Foam, it is characterized in that, the total weight parts of described LDPE and LLDPE is 100.
3. employing carbon dioxide foaming agent according to claim 1 is produced the method for high-foaming EPE PE Foam, it is characterized in that, described modification trees ashes are made by following method: first boil trees ashes 20-30min with the 15-20% hydrogen peroxide, clean with distilled water again, be placed in the drying in oven of 110-120 ℃, add the sodium lignosulfonate that is equivalent to trees ashes weight 2-3%, the polyisobutene of 3-4%, the 2-3% polyethylene wax, the tributyl citrate of 1-2%, the aluminium hydroxide of 3-5%, stir 2-3h 80-90 ℃ of water-bath high speed, oven dry, pulverizing grinds to form ultrafine powder and gets final product.
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103435886A (en) * | 2013-08-14 | 2013-12-11 | 吴江市英力达塑料包装有限公司 | Antiflaming gaseous phase rust-proof pearl wool and preparation method thereof |
| CN104223840A (en) * | 2013-06-06 | 2014-12-24 | 龚祖斌 | EVA cushion core material for sofa cushion and preparation method thereof |
| CN105292702A (en) * | 2015-10-19 | 2016-02-03 | 界首市佳宝包装材料有限公司 | Pearl wool bag for packaging precision instrument |
| CN105778247A (en) * | 2016-05-30 | 2016-07-20 | 深圳市康尼塑胶有限公司 | Polyethylene foam material prepared from natural fibers and preparation method thereof |
| CN107880347A (en) * | 2017-10-19 | 2018-04-06 | 合肥朗胜新材料有限公司 | A kind of EPE pearl wool and preparation method thereof |
| CN108610540A (en) * | 2018-05-17 | 2018-10-02 | 深圳市康尼塑胶有限公司 | The method of production of the degradable bubble chamber film of fire resistant antistatic wear-proof |
| CN108659313A (en) * | 2018-05-24 | 2018-10-16 | 苏州国立塑料制品有限公司 | A kind of preparation method and applications of environment-friendly modified Pearl wool material |
| CN108752622A (en) * | 2018-05-28 | 2018-11-06 | 武汉托素新材料科技有限公司 | A kind of foamed products and preparation method thereof replacing foaming agent with air |
| CN108892835A (en) * | 2018-05-22 | 2018-11-27 | 苏州国立塑料制品有限公司 | A kind of preparation method and applications of anticorrosion modified pearl cotton material |
| CN109096586A (en) * | 2018-09-06 | 2018-12-28 | 安徽英美达新材料科技有限公司 | A kind of preparation method of environmental type EPE pearl wool |
| CN109233045A (en) * | 2018-07-25 | 2019-01-18 | 厦门市地隆包装材料有限公司 | A kind of EPE packaging material and preparation method thereof and protective case |
| CN110607012A (en) * | 2019-08-14 | 2019-12-24 | 平湖市富利源塑业有限公司 | Pearl cotton and production process thereof |
| WO2021053703A1 (en) * | 2019-09-16 | 2021-03-25 | 誠之 島田 | Composition for structure, structure, and method for producing structure |
| CN113024918A (en) * | 2019-12-24 | 2021-06-25 | 华东理工大学 | EPE pearl wool material and preparation method and application thereof |
| EP3885400A1 (en) | 2020-03-27 | 2021-09-29 | Innograaf B.V. | A polymeric foam material for shock pads in artificial grass systems |
| CN114395188A (en) * | 2022-02-21 | 2022-04-26 | 广东泓硕新材料科技有限公司 | Stretch-resistant tear-resistant pearl cotton and preparation method thereof |
| CN116082736A (en) * | 2023-02-13 | 2023-05-09 | 重庆日鑫包装制品有限公司 | High-toughness environment-friendly pearl cotton section bar for packaging and preparation method thereof |
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| CN102516633A (en) * | 2011-12-14 | 2012-06-27 | 吴江明峰聚氨酯制品有限公司 | Antistatic polyethylene foamed plastic |
| CN102875882A (en) * | 2012-10-24 | 2013-01-16 | 青岛鑫三鸿塑胶制品有限公司 | Polyethylene and carbon dioxide extruded micro-foamed product and preparation method thereof |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104223840A (en) * | 2013-06-06 | 2014-12-24 | 龚祖斌 | EVA cushion core material for sofa cushion and preparation method thereof |
| CN103435886A (en) * | 2013-08-14 | 2013-12-11 | 吴江市英力达塑料包装有限公司 | Antiflaming gaseous phase rust-proof pearl wool and preparation method thereof |
| CN103435886B (en) * | 2013-08-14 | 2015-11-25 | 吴江市英力达塑料包装有限公司 | A kind of fire-retardant volatile rust prevention PE Foam and preparation method thereof |
| CN105292702A (en) * | 2015-10-19 | 2016-02-03 | 界首市佳宝包装材料有限公司 | Pearl wool bag for packaging precision instrument |
| CN105292702B (en) * | 2015-10-19 | 2018-01-12 | 界首市佳宝包装材料有限公司 | A kind of precision instruments are packed for the preparation method of pearl cotton bag |
| CN105778247A (en) * | 2016-05-30 | 2016-07-20 | 深圳市康尼塑胶有限公司 | Polyethylene foam material prepared from natural fibers and preparation method thereof |
| CN107880347A (en) * | 2017-10-19 | 2018-04-06 | 合肥朗胜新材料有限公司 | A kind of EPE pearl wool and preparation method thereof |
| CN108610540A (en) * | 2018-05-17 | 2018-10-02 | 深圳市康尼塑胶有限公司 | The method of production of the degradable bubble chamber film of fire resistant antistatic wear-proof |
| CN108892835A (en) * | 2018-05-22 | 2018-11-27 | 苏州国立塑料制品有限公司 | A kind of preparation method and applications of anticorrosion modified pearl cotton material |
| CN108659313A (en) * | 2018-05-24 | 2018-10-16 | 苏州国立塑料制品有限公司 | A kind of preparation method and applications of environment-friendly modified Pearl wool material |
| CN108752622A (en) * | 2018-05-28 | 2018-11-06 | 武汉托素新材料科技有限公司 | A kind of foamed products and preparation method thereof replacing foaming agent with air |
| CN109233045A (en) * | 2018-07-25 | 2019-01-18 | 厦门市地隆包装材料有限公司 | A kind of EPE packaging material and preparation method thereof and protective case |
| CN109096586A (en) * | 2018-09-06 | 2018-12-28 | 安徽英美达新材料科技有限公司 | A kind of preparation method of environmental type EPE pearl wool |
| CN110607012A (en) * | 2019-08-14 | 2019-12-24 | 平湖市富利源塑业有限公司 | Pearl cotton and production process thereof |
| WO2021053703A1 (en) * | 2019-09-16 | 2021-03-25 | 誠之 島田 | Composition for structure, structure, and method for producing structure |
| CN113024918A (en) * | 2019-12-24 | 2021-06-25 | 华东理工大学 | EPE pearl wool material and preparation method and application thereof |
| EP3885400A1 (en) | 2020-03-27 | 2021-09-29 | Innograaf B.V. | A polymeric foam material for shock pads in artificial grass systems |
| NL2025222B1 (en) * | 2020-03-27 | 2021-10-20 | Innograaf B V | A polymeric foam material for shock pads in artificial grass systems. |
| CN114395188A (en) * | 2022-02-21 | 2022-04-26 | 广东泓硕新材料科技有限公司 | Stretch-resistant tear-resistant pearl cotton and preparation method thereof |
| CN116082736A (en) * | 2023-02-13 | 2023-05-09 | 重庆日鑫包装制品有限公司 | High-toughness environment-friendly pearl cotton section bar for packaging and preparation method thereof |
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