CN102875880B - Plastic foamed sheet with antistatic and flame-retardant functions and manufacturing technique thereof - Google Patents
Plastic foamed sheet with antistatic and flame-retardant functions and manufacturing technique thereof Download PDFInfo
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Abstract
The invention relates to an environment-friendly plastic foamed sheet with antistatic and flame-retardant functions and a manufacturing technique thereof. The manufacturing technique comprises the following steps: preparing bamboo carbon powder, kaolin, plastic, antistatic agent, flame retardant and other chemical assistants, banburying, mixing, discharging from a guillotine to obtain a sheet semi-finished product, and foaming to form with a foaming machine. The plastic foamed sheet is prepared from the following raw materials in parts by mass: 5.5-6 parts of plastic, 1.0-1.5 parts of bamboo carbon powder, 1.5-3.5 parts of kaolin, 1.0-2.5 parts of antistatic agent, 1.5-3.5 parts of flame retardant and 0.5-1.0 part of chemical assistants. The manufacturing technique produces the plastic foamed sheet with high-standard antistatic and flame-retardant functions, overcomes the defects and shortcomings in the prior art, has important and profound significance for solving the problems above, and has very wide market potential.
Description
Technical field:
The present invention relates to a kind of plastic foamed sheet material, particularly a kind of plastic foamed sheet material and manufacture craft thereof simultaneously with anti-electrostatic and fire-retardant two kinds of functions and environmental protection.
Background technology:
Existing plastic foamed sheet material raw material comprises: the plastics such as ethene--acetate ethylene copolymer, POE elastomeric plastic, hp-ldpe, low-pressure high-density polyethylene, high-low pressure composite polyethylene, and static inhibitor, fire retardant, auxiliary chemicals, calcium carbonate-filled dose etc., by above material produce, there is anti-electrostatic and fire-retardant two kinds of dynamical plastic foamed sheet material effects are undesirable.Mainly contain four large defects: the one, material is difficult to decompose, because in order to realize anti-electrostatic and fire-retardant good effect, static inhibitor and fire retardant addition must increase, causes the difficult decomposition of material aborning, and intermiscibility is poor.When stablizing, static value has 10
9power, when unstable, static value only has 10
10-12power.The high-temperature resistant temperature of flame retardant effect only has 180 ℃～left and right.The sheet material of working it out often appearance is as the bubble of egg or Semen arachidis hypogaeae size, uneven, and ghost image rings quality product; The 2nd, material environment friendly effect is general, does not reach industry highest standard; The 3rd, by original formula and manufacture craft, be not suitable with development need; The 4th, in actual applications, or because not having the fire explosion that electrostatic-proof function causes, plastic foamed sheet material happens occasionally, again or do not reach related standards, also presence of fire accident because of plastic foamed sheet material flame retardant effect.That is to say for a long time, plastic foamed sheet material has electrostatic-proof function but there is no anti-flaming function, or has anti-flaming function but there is no electrostatic-proof function, even if or have two kinds of functions but effect is undesirable, functional lability simultaneously.Cause anti-electrostatic and anti-flaming function undesirable, also because process for making is coarse out-of-date, details is held bad, makes material breakdown poor, and foaming plastic plate out bubbles, and density is inadequate, irregular attractive in appearance; Aspect the exploitation of environmental friendly material, do not innovate with production technique aspect is conservative simultaneously, also restricted larger range of application, particularly be difficult to meet singularity and the high request in the fields such as security protection, the fire and the explosion hazard that therefore cause cause very big infringement to the country and people's lives and properties.
Summary of the invention:
Object of the present invention is just in order to solve above-mentioned prior art defect and a kind of plastic foamed sheet material and manufacture craft thereof simultaneously with anti-electrostatic and fire-retardant two kinds of functions and environmental protection not enough and invention.(also claiming EVA foaming or crosslinked foaming)
Object of the present invention can realize by following measures:
A kind of plastic foamed sheet material of the present invention and manufacture craft thereof, be by raw materials such as bamboo carbon powder, kaolin, plastics, static inhibitor, fire retardant and other auxiliary chemicals through preparation, banburying, open refining, shear slice is laminated after work in-process, then by foaming machine foaming; The raw material of described plastic foamed sheet material adopts bamboo carbon powder, kaolin, plastics, static inhibitor, fire retardant, auxiliary chemicals preparation, and its mass parts is 5.5～6 parts of plastics, 1.0～1.5 parts of bamboo carbon powders, 1.5～3.5 parts of kaolin, 1.0～2.5 parts of static inhibitor, 1.5～3.5 parts of fire retardants, 0.5～1.0 part of auxiliary chemicals.
Described bamboo carbon powder particle diameter is 500---800 order; Described kaolin particle diameter is 1000--3000 order; Described plastics be hp-ldpe, low-pressure high-density polyethylene, high-low pressure composite polyethylene, ethene-acetate ethylene copolymer, POE elastomeric plastic at least one; Described static inhibitor is that the P18 of German import or the XID7103F1 of imported from America, XID1053F2, XID1045FL choose any one kind of them; Described fire retardant be TDE, brominated epoxy resin or brominated Polystyrene at least one; Described auxiliary chemicals are at least three kinds of Cellmic C 121, solidity Zinic stearas, water-based zinc stearate, 99.5%～99.7% zinc oxide and non-ionic type linking agent W-8035, W-8135 or W-8235.
The manufacture method of plastic foamed sheet material of the present invention comprises:
(1) first bamboo carbon powder, kaolin, static inhibitor being put into rubber and plastic glue milling machine (is Banbury mixer, with Banbury mixer, explain below) slightly do banburying and grind 3 minutes, object is to make bamboo carbon powder, kaolin, the static inhibitor all material of banburying together with afterwards obtain suitable mixing a little, guarantees that material fully decomposes;
(2) put into plastics, fire retardant and auxiliary chemicals, banburying to 85 ℃～90 ℃ material starts when melt and dissolved, to put into linking agent again;
(3) put into after linking agent, thorough turning over materials 7～9 times, banburying to temperature reaches 115 ℃～120 ℃, and the whole banburying time is 14～16 minutes;
(4) the whole group's material after banburying refines glue by mill, then by the shear slice work in-process of laminating;
By work in-process by the requirement of die design technique, through foaming machine foaming and molding.
The manufacture method of plastic foamed sheet material of the present invention adopts adds bamboo carbon powder, kaolin, existing formula and technique are carried out to innovation transformation, produce the plastic foamed sheet material simultaneously with anti-electrostatic and fire-retardant two kinds of high standard functions, defect and the deficiency of prior art have been overcome, to addressing the above problem, have important and far-reaching meaning, market potential is extremely wide.
Embodiment:
A kind of plastic foamed sheet material of the present invention and manufacture craft thereof, be by raw materials such as bamboo carbon part, kaolin, plastics, static inhibitor, fire retardant and other auxiliary chemicals through preparation, banburying, open refining, block and laminate after work in-process, then by foaming machine foaming; The raw material of plastic plate adopts bamboo carbon powder, kaolin, plastics, static inhibitor, fire retardant, auxiliary chemicals preparation, and its mass parts is 5.5～6 parts of plastics, 1.0～1.5 parts of bamboo carbon powders, 1.5～3.5 parts of kaolin, 1.0～2.5 parts of static inhibitor, 1.5～3.5 parts of fire retardants, 0.5～1.0 part of auxiliary chemicals.
Bamboo carbon powder particle diameter is 500---800 order; Kaolin particle diameter is 1000～3000 orders; Plastics be hp-ldpe, low-pressure high-density polyethylene, high-low pressure composite polyethylene, ethene-acetate ethylene copolymer, POE elastomeric plastic at least one; Static inhibitor is that the P18 of German import or the XID7103F1 of imported from America, XID1053F2 or XID1045FL choose any one kind of them; Fire retardant be TDE, brominated epoxy resin or brominated Polystyrene at least one; Auxiliary chemicals are at least three kinds of Cellmic C 121, solidity Zinic stearas, water-based zinc stearate, 99.5%～99.7% zinc oxide and non-ionic type linking agent W-8035, W-8135 or W-8235.
The manufacturing technology steps of plastic foamed sheet material of the present invention is: (1) is first put into bamboo carbon powder, kaolin, static inhibitor Banbury mixer according to technique particular requirement and slightly do banburying, ground approximately 3 minutes, makes static inhibitor and bamboo carbon powder, and kaolin fully decomposes; After approximately 3 minutes, put into plastics, fire retardant and auxiliary chemicals, emphasis is that linking agent is not first put, and object is slow down material too fast crosslinked, affects material breakdown.When banburying to 85 ℃～90 ℃ material starts when melt and dissolved, put into linking agent at once, after putting into linking agent, to thoroughly stir material 7～9 times, it is melt and dissolved when agglomerating that banburying to temperature reaches 115 ℃～120 ℃ materials, the whole banburying time was 14～16 minutes, than the banburying time lengthening of common plastics foaming plate 3～4 minutes; (2) the whole group's material after banburying refines glue by mill, then by the shear slice work in-process of laminating; (3) this moment by work in-process by the requirement of die design technique, through foaming machine foaming, be finally shaped.
Plastic foamed sheet material of the present invention has following clear superiority:
1) have simultaneously anti-electrostatic and fire-retardant two kinds high-effect.Static value was when originally stablizing 10
9power, when unstable 10
10-12power till now 10
6～8power, has improved stability greatly; Fire-retardant burning-point is brought up to present more than 650 ℃ from original 180 ℃, increased substantially high temperature resistant temperature, and anti-electrostatic and flame retardant effect are remarkable;
2) can reduce the component of static inhibitor and fire retardant, reduce costs, of many uses.Add bamboo carbon powder and can reduce by 0.5%～0.8% static inhibitor, because bamboo carbon powder has certain anti-static function.Add kaolin and relatively reduce by 1,5～2,5% fire retardant, because kaolin has good anti-flaming function.And the bamboo charcoal of doing bamboo carbon powder burns till through 1000 degree high temperature, itself also has certain flame retardant resistance, and while using together with resistant to elevated temperatures kaolin, intermiscibility is fine, and flame retardant effect further.Add bamboo carbon powder and kaolin and reduced cost, make a large amount of industry need to become possibility, greatly increased the range of application of product.This have anti-electrostatic and fire-retardant two kinds of dynamical plastic foamed sheet materials can be used in floor, wall, the seat on all motor vehicles, steamer and aircraft, the floor carpet of place of public amusement, soundproof wall, top ceiling, the aspects such as the outer encirclement of tank simultaneously.Illustrate: the outsourcing that is used in tank wagon is placed and can be occurred from source Accident prevention, because this plastic foamed sheet material has good toughness, pulling force, torsion, tear resistance and very strong anti-impact force, can prevent that tank wagon is effectively protected when meeting accident collision, during collision because outer encirclement plastic plate has anti-static function, can be because of generation of static electricity fire explosion, if because foeign element is brought burning things which may cause a fire disaster, the generation that 650 ℃ of above anti-flaming functions also can well Accident prevention so;
3) starting material environmental protection, low cigarette, there will not be murder by poisoning.Because added two kinds of environmental friendly materials of bamboo carbon powder and kaolin, reduced the deal of static inhibitor and fire retardant, make more environmental protection of material, and bamboo carbon powder also has very strong adsorptive power, the peculiar smell adsorption of material is disposed;
4) process program innovation is complete.Bamboo carbon powder and kaolin and other materials intermiscibility are well suited for, again aspect formula and material first descend back lower place face to innovate, material is decomposed fully and is cross-linked, and makes static inhibitor and fire retardant with being less than amount in the past, has but greatly improved functional effect;
5) product processing convenient transportation.Can be fused into length is 10 meters--the coiled material of 1000 meters, can cut open into 0.5 millimeter--the thickness of 100 millimeters, can strike out different shape, assembled again after can blocking.In addition, this sheet material is more easily processed than bamboo wood board, because when foaming can be adjusted formula, obtains the soft durometer needing, such as being foamed into 25 softer degree--45 degree hardness, 50 harder degree-70 degree hardness, weight is also light compared with bamboo wood board.
6) product except have very strong anti-impact force and heat insulation, also have good antidetonation, buffering, sound insulation, anticorrosion, fungi-proofing, moistureproof, waterproof, the remarkable advantage such as withstand voltage.
Below the present invention is further limited the present invention by concrete proportioning and process program, make this area staff can further understand and implement the present invention.
Embodiment 1:
There are anti-electrostatic and fire-retardant two kinds of dynamical environment-friendly materials, by 6 parts of plastics of mass parts, 1 part of bamboo carbon powder, 1.5 parts of kaolin, 1.5 parts of static inhibitor, 1.5 parts of fire retardants, 0.5 part of auxiliary chemicals forms.
Bamboo carbon powder particle diameter of the present invention is 500--800 order;
Kaolin particle diameter is 1000-3000 orders;
Plastics adopt low-pressure high-density polyethylene, hp-ldpe, high-low pressure composite polyethylene, ethene--acetate ethylene copolymer, POE elastomeric plastic at least one;
Static inhibitor is that the P18 of German import or the XID7103F1 of imported from America, XID1053F2, XID1045FL choose any one kind of them;
Fire retardant is TDE;
Auxiliary chemicals are at least three kinds of Cellmic C 121s, 99.5%-99.7% zinc oxide, solidity Zinic stearas, water-based zinc stearate, non-ionic type linking agent W-8235.
Embodiment 2:
There are anti-electrostatic and fire-retardant two kinds of dynamical environment-friendly materials, by 5.5 parts of plastics of mass parts, 1.5 parts of bamboo carbon powders, 2 parts of kaolin, 1 part of static inhibitor, 1.5 parts of fire retardants, 0.5 part of auxiliary chemicals, formed.
Bamboo carbon powder particle diameter of the present invention is 500-800 orders;
Kaolin particle diameter is 1000-3000 orders;
Plastics are that hp-ldpe, low-pressure high-density polyethylene, high-low pressure composite polyethylene, ethene-acetate ethylene copolymer or POE elastomeric plastic select arbitrarily one or more combination;
Static inhibitor is that the P18 of German import or the XID1045FL of imported from America, XID7103F1, XID1053F2 choose any one kind of them;
Fire retardant is brominated epoxy resin;
Auxiliary chemicals are at least three kinds of Cellmic C 121,99.5%--99.7% zinc oxide, solidity Zinic stearas, water-based zinc stearate and non-ionic type linking agent W--8035, W--8130 or W--8235.
The manufacture craft of environment-friendly materials of the present invention is:
1, by the environmental friendly material described in above example 1 or example 2, (be bamboo carbon powder, kaolin) and the batching such as required plastics, static inhibitor, fire retardant, auxiliary chemicals be ready to, first bamboo carbon powder, kaolin, static inhibitor being put into Banbury mixer banburying grinds, again the banburying together that puts in of other materials such as plastics, fire retardant, finally just put linking agent into, banburying is agglomerating.All materials are put in three steps.
2, after aforesaid device aftertreatment, then through mill refining glue, by the shear slice work in-process of laminating.
3, this moment by work in-process, by die design processing requirement, through foaming machine foaming, last moulding.
Its further concrete operations flow process is that described anti-electrostatic and the detailed making step of its foam process of flame-proof environmental protection material are:
Manufacture craft and technical essential: because the deal of bamboo carbon powder, kaolin, static inhibitor and fire retardant is all many, reach anti-electrostatic and fire-retardant two kinds of functions, and the foaming level and smooth atresia of sheet material out, density is good, so want exactissima diligentia in technique, details will be maintained strict control over pass:
(1) Banbury mixer mixing banburying material is a most important ring in all technical process, divide 6 steps to describe in detail below: (1) first puts Banbury mixer into bamboo carbon powder, kaolin and static inhibitor, only cover dust guard dustproof, pressure cover does not first cover, object is that above material is ground in first abundant banburying, make it all material of banburying together with afterwards and obtain suitable mixing a little, because being particle, static inhibitor might as well sheet might as well all be difficult to decompose, utilize bamboo carbon powder mixing grinding together with kaolin elder generation, allow its phase mutual friction accelerate to decompose; (2) approximately spend 2 minutes and 30 seconds--after 3 minutes, plastics, fire retardant and the auxiliary chemicals Banbury mixer that puts in, make sure to keep in mind only to stay linking agent and finally put and (illustrate: finally putting linking agent object is not allow the crosslinked decomposition that affects too soon material of material.If when usually doing sheet material common or function singleness, all material is all the banburying that puts in together, but due to singularity of the present invention and high request, will ask the molten point of all material to want consistent, so linking agent must finally be put separately); (3) after approximately 3 minutes, at this moment temperature is when 65 ° C---70 ° C degree left and right, start dust guard, putting down pressure cover pressurization (illustrates: the remaining banburying time all need not be covered dust guard, only cover pressure cover, object is to cover pressure cover can accelerate slightly temperature increase, allows material accelerate melt and dissolved, does not affect material function and production efficiency); (4) about mistake is 3 minutes, and about 85 ° of C-90, a ° C degree material starts melt and dissolved agglomeratingly temperature, at this moment at once opens pressure cover linking agent is put in, and covers at once pressure cover pressurization internally mix; (5) after about 3 minutes, temperature is when 100 ° of C--105 ° of C, temperature can rise very soon, to start pressure cover at once and start to stir material, since 105 degree left and right to finishing all need not to cover pressure cover, and want 7-9 left and right of frequent turning over materials in last 3 minutes, within approximately 20 seconds, turn over once, linking agent and other material are fully mixed crosslinked, above must all the material of bottom thoroughly being translated into while stirring at every turn; (6) cover above (1)--after (5) program, temperature is when 115 ° of C---120 ° of C, all materials all fully decompose melt and dissolved agglomerating, that is to say that Banbury mixer banburying program has completed, whole process time approximately needs 14-16 minutes (illustrating: this method extends 3--4 minute than the many banburyings of common material).
(2) material of the whole group at this time Banbury mixer being poured out be put into mill repeatedly stir refining glue beat thick 2 times (75 ° of the temperature of two rollers of mill--80 °, want first preheating 15 minutes), stir again and thin after twice, be put into shear slice at once, be cut into thin slice work in-process, the half-finished length of thin slice and width will require to adjust according to die design (temperature of amputation knife will be preheating to 140 ° of C--145 ° of C).The half-finished thickness of thin slice is 0,8 millimeter, and thickness is wanted evenly, not cause both sides thickness to differ, and affects mold foaming quality.
(3) at this moment the thin slice work in-process after blocking are required to calculate to weigh up weight according to touching tool design technology, put into foaming machine foaming.The temperature of foaming machine hot plate is 170 ° of C--175 ° of C.Through the pressure of regulation, add the stream time and temperature foam (pressure, add stream time and temperature be according to the hardness of finished product sheet material and THICKNESS CALCULATION out), foaming finished product sheet material is out the half-finished 1.8--2 of thin slice times, and expansion ratio is also to calculate by the finished product sheet material of different hardness.
Foam theory: (1) whipping agent (being Cellmic C 121) reacts by cross-linking chemistry, produces a large amount of gas, makes material expand because of hot; (2) bridging agent (being non-ionic type linking agent W-8035) adopts superoxide to add stream; (3) complete after the foaming of above-mentioned processing sequence, open foaming machine, pulling out finished product sheet material, to lie in ground cooling, and ground is smooth, without any foreign material, after 12 hours, could use.
The sheet material of working it out by above requirement, anti-electrostatic and fire-retardantly all reach high-effect, sheet material Founder is attractive in appearance, and density is good without aperture.
Above technology key is minute three steps, first descends bamboo carbon powder, kaolin and static inhibitor banburying to grind, then puts the materials such as plastics, fire retardant, auxiliary chemicals, finally puts linking agent; To strictly follow specific time, temperature, pressure and thoroughly stir the requirement of agglomerating material.These are all to guarantee that sheet material reaches high-quality key.
Although above, the present invention be have been described in detail, should be appreciated that implementation method is herein not to limit the invention, any simple formula is replaced and equivalent technical process modification all should fall into protection scope of the present invention.
Claims (2)
1. there is a manufacture craft for the plastic foamed sheet material of anti-electrostatic and anti-flaming function simultaneously, it is characterized in that: the manufacturing process of described plastic foamed sheet material is:
(1) first 1.0～1.5 parts of bamboo carbon powders of mass parts, 1.5～3.5 parts of kaolin, 1.0～2.5 parts of static inhibitor are put into Banbury mixer and slightly done mixing grinding 3 minutes;
(2) put into 5.5～6 parts of plastics, 1.5～3.5 parts of fire retardants and auxiliary chemicals except linking agent, during above material banburying to 85 ℃～90 ℃ of temperature, material starts melting, at this moment finally puts into linking agent again; Auxiliary chemicals content is 0.5～1.0 part;
(3) put into after linking agent, thorough turning over materials 7～9 times, banburying to temperature reaches the crosslinked melting of 115 ℃～120℃ whole group material;
(4) the whole group's material after banburying refines glue by mill, then by shear slice, the work in-process of laminating;
By work in-process by the requirement of die design technique, through foaming machine foaming and molding.
2. a kind of manufacture craft simultaneously with the plastic foamed sheet material of anti-electrostatic and anti-flaming function according to claim 1, is characterized in that: described bamboo carbon powder particle diameter is 500---800 order, and described kaolin particle diameter is 1000--3000 order; Described static inhibitor is the P18 of German import; Described fire retardant be TDE, brominated epoxy resin or brominated Polystyrene at least one; Described auxiliary chemicals are at least three kinds of Cellmic C 121, solidity Zinic stearas, water-based zinc stearate, 99.5%～99.7% zinc oxide and non-ionic type linking agent W-8035, W-8135 or W-8235; Described plastics are hp-ldpe, low-pressure high-density polyethylene, high-low pressure composite polyethylene, ethene--acetate ethylene copolymer or POE elastomeric plastic at least one.
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| CN104893061B (en) * | 2014-03-07 | 2018-05-29 | 冼冰 | A kind of environmental protection flame retardant foamed plastic for adsorbing peculiar smell and preparation method thereof |
| CN104151674B (en) * | 2014-08-25 | 2016-03-23 | 倪海霞 | A kind of fire-retardant top ceiling and preparation method thereof |
| CN104177689A (en) * | 2014-08-25 | 2014-12-03 | 丹阳市恒大塑业有限公司 | Foamed HDPE plastic sheet |
| CN104710650B (en) * | 2015-03-13 | 2018-02-02 | 瑞安市豪邦橡塑材料有限公司 | The preparation method of environmental protective type chemical mixed aid |
| CN107379139A (en) * | 2017-07-12 | 2017-11-24 | 威信广厦模块住宅工业有限公司 | A kind of preparation method of fire-retardant lagging sheet material |
| CN109096582A (en) * | 2018-07-27 | 2018-12-28 | 成都亿洲塑料制品有限公司 | A kind of novel plastic seat production technology |
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| CN101870782B (en) * | 2009-04-21 | 2012-05-30 | 陽新五龍興塑業高科技材料有限公司 | Antistatic flame-retardant foam material and preparation method thereof |
| CN102690457A (en) * | 2011-03-25 | 2012-09-26 | 陈姜志 | Flame-retardant environment-friendly material and manufacturing process thereof |
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