CN101982487B - New heat-resistant material special for packaging film of polyethylene tyre and preparation method thereof - Google Patents
New heat-resistant material special for packaging film of polyethylene tyre and preparation method thereof Download PDFInfo
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- CN101982487B CN101982487B CN2010105120533A CN201010512053A CN101982487B CN 101982487 B CN101982487 B CN 101982487B CN 2010105120533 A CN2010105120533 A CN 2010105120533A CN 201010512053 A CN201010512053 A CN 201010512053A CN 101982487 B CN101982487 B CN 101982487B
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Abstract
The invention discloses a new heat-resistant material special for a packaging film of a polyethylene tyre and a preparation method thereof. The material of the invention comprises the following components in weight percentage: 12-16wt% of magnesium salt whisker, 12-16wt% of alkali-free glass fiber, 2-8wt% of titanium dioxide, 4-8wt% of scattered lubricant, 1-5wt% of silicon dioxide, 40-45wt% of calcium carbonate (30mum) and 15-20wt% of carrier resin. The preparation method of the new material special for the packaging film of the polyethylene tyre comprises the following steps: the components are accurately weighed for use according to the weight percentages; the magnesium salt whisker, the alkali-free glass fiber, the silicon dioxide, calcium carbonate and the titanium dioxide are added to a high-speed mixer to be mixed and dried at a high speed; the obtained mixture is added to a kneading pot with the current controlled to be 30 to 50A to be mixed at a low speed for two minutes after the scattered lubricant and the vector resin are added; the materials are taken out for use; a half of the obtained kneaded material is added to a single-screw extruder for extrusion at the temperature of 100 to 160 DEG C, and then the extruded material is subject to hot cutting and air cooling to obtain the required master batch; and the other half of the kneaded material is prepared into powder to be tested, packaged and stored. A user needs to mix the granular product and the powdery product with matrix resin according to a certain ratio when in use so that granular bulges are generated on the produced packaging film so as to reduce the heating surface area and obtain stronger heat resistance. In addition, the invention has the advantages of smooth external film, no contraction, no deformation and easy peeling after stepwise cooling for 48 hours, thus being beneficial to mass production of tyre films with high benefit.
Description
Technical field
The present invention relates to the preparation field of plastics, especially a kind of heat-resisting novel material that is exclusively used in Vilaterm tire packing film and preparation method thereof.
Background technology
Development of high-tech in tire in enormous quantities rolls off the production line packing film production, adopts the heatproof of the polyethylene film of general starting material production only to reach about 90 ℃ the demands for higher performance of material; And cool off the back and be prone to creep, be prone to sticking tire, the easy color transfer that forms, carry out modifying plastics through inorganic powders such as research and test employing fibre reinforced composites; Can make the packing film goods obtain 100 ℃ resistance to elevated temperatures, and through 48 hours progressively after the cooling, adventitia was smooth; Do not have and shrink; Do not have distortion, be prone to peel off, help taking turns the mass-producing benefit production of fetal membrane.
Summary of the invention
The object of the invention is exactly to overcome the deficiency that prior art exists and a kind of heat-resisting novel material that is exclusively used in Vilaterm tire packing film and preparation method thereof is provided.
For achieving the above object, technical scheme of the present invention is following:
A kind of heat-resisting novel material that is exclusively used in Vilaterm tire packing film, the weight percent of each component is: magnesium salt whisker 12-16%, alkali-free glass fiber 12-16%; White titanium pigment 2-8%, dispersed lubricant 4-8%, silica 1-5%; 30 μ m lime carbonate 40-45%, vector resin 15-20%.
Magnesium salt whisker: (abbreviation M-HOS), chemical formula: MgSO
4.5Mg (OH)
2.3H
2O; Outward appearance: white powder, microstructure: needle-like, fibrous single crystal; Whisker size: diameter＜1.0 μ m, long 20～80 μ m proportion: 2.3g/cm3; Loose density:＜0.2; Specific surface:＜12M
2/ g; Volume impedance: 2.4x1014 Ω cm; Specific inductivity: 2.9～3.8; Insulation breakdown intensity: 6.85kV/mm; Contain moisture:＜1%; PH value: 9.5; Oil number: 500ml/100g; Specific refractory power: 1.53.This product is the imperceptible single crystal fiber that under the synthesis condition of special control, grows, and diameter is at nano-grade size.Because the whisker size is very trickle, there is not the defective that macrocrystal exists in the common object, have theoretical strength near valence link between atom, physics, chemical property are excellent especially.Magnesium salt whisker is the short fiber material of functional type: can strengthen, and again can be fire-retardant.Be used for reinforced plastics and can improve its intensity, rigidity, dimensional stability and heat-drawn wire greatly.And use characteristics is good: forming process good fluidity, isotropy, any surface finish visual appearance are good.Be particularly suitable for making complex-shaped, dimensional precision and the high precise injection parts of surface requirements; Use as inorganic combustion inhibitor, nontoxic, can suppress to be fuming, also be good inorganic combustion inhibitor.
Alkali-free glass fiber: staple is an aluminium boric acid silicate; The alkali-free glass fiber chopped strand is cut into certain-length and processes through short by the continuous glass-fiber precursor, is mainly used in strongthener such as PA, PBT, PP, PET, PE, the PPO of thermoplasticity and thermoset (BMC) resin etc.Alkali content:＜0.8, treating compound: silane type, filament diameter: 13 μ m, length: 3mm or 6mm, water ratio: 0.3%.Following characteristics are arranged: 1, precursor convergency 2, be uniformly dispersed 3, filoplume is few 4, low static.
White titanium pigment: formal name used at school titanium oxide (TiO2), molecular weight 79.88, be a kind of white powder pigment, have stable, the advantages such as opacifying power is high, good dispersivity of nontoxic, chemical property; Under the normal temperature hardly with any material effect; Water insoluble, diluted acid and organism are slightly soluble in alkali and hot acid, and reducing power is strong; Opacifying power is high, and glossiness is big.
Silicon-dioxide: be synthetic silica, can reach specific effect, in thermoplastics, function as follows: 1. reduce the generation of contraction and creep with low loading level; 2 gain in strength; 3. prevent film coalescence, 4. improve dimensional stability under the high temperature, 5. reduce thermal linear expansion coefficient; 6. improve electrical property, 7. thickening, rheology and thixotropic effect.
Water-ground limestone: be calcite or marble lime carbonate, grind and form that purity requirement is greater than 98% by natural carbonate mineral such as calcite, marble, Wingdale.Be the powdery mineral filler of using always, have chemical purity height, inertia big, be difficult for chemical reaction, Heat stability is good, can not decompose below 400 ℃, whiteness is high, oil absorbency is low, refractive index is low, matter is soft, dry, do not contain crystal water, hardness is hanged down advantages such as wear(ing)value is little, nontoxic, tasteless, odorless, good dispersivity.Lime carbonate can be obtained good dispersiveness in plastics after surface treatment, the product glossiness that makes is good, how to use as reinforcement property weighting agent or physical property improving agent.
Dispersed lubricant: used pure polyethylene wax relative molecular weight between 1500-9500, specific density 0.9-0.93g/cm
3, softening temperature 101-115 ℃, few from usage quantity, that dispersion effect is good angle is considered to select the little kind of molecular weight for well.
Vector resin: used vector resin is a kind of in the new LDPE (film grade) or two kinds, and the melt flow rate(MFR) of new LDPE (film grade) is 2-7g/10min.
Described dispersed lubricant comprises polyethylene wax, paraffin, Triple Pressed Stearic Acid, Zinic stearas, N-N ' ethylene bis stearamide; Described coupling agent is selected one or both in aluminate coupling agent, titanate coupling agent, the boric acid ester coupler for use; Described vector resin is one or both of linear low density polyethylene.
This preparation method who is exclusively used in the heat-resisting novel material of Vilaterm tire packing film is: at first that the accurate weighing of each compositions in weight percentage is good subsequent use; Place high-speed mixer to carry out the mixed at high speed oven dry magnesium salt whisker, alkali-free glass fiber, silicon-dioxide, lime carbonate and white titanium pigment then; Add behind dispersed lubricant, the vector resin compound is placed in the kneading pot that current control is 30-50A and carried out low speed mixing two minutes; Discharging is subsequent use, gets wherein half and mediates material and put into the single screw extrusion machine that the main frame temperature is controlled at 100-160 ℃ and extrude, and processes required masterbatch through fervent, air-cooled; Second half then does powdering, check, packing warehouse-in.The client in use needs in matrix resin, to use with the blending by a certain percentage of powdered product granular earlier, and purpose is for the packing film that makes production produces the heating surface area that granular prominence reduces the surface, thereby obtains higher resistance toheat; And through 48 hours progressively the cooling after; Adventitia is smooth, does not have and shrinks, and does not have distortion; Be prone to peel off, help taking turns the mass-producing benefit production of fetal membrane.
The beneficial effect of the invention:
Three kinds of inorganic materials calcium carbonate powders, magnesium salt whisker and alkali-free glass fibers adopting in the inventive method are heat-stable material; And focus on the constructional feature of three kinds of materials; Being distributed as of calcium carbonate powder is spherical, and magnesium salt whisker is a needle-like, and alkali-free glass fiber is a stratiform; Three kinds of materials are arranged fine and close more in resin after the blend; Reduced heat passage between molecular resin, and then improved the thermotolerance of resin, the rat thing that adopts the two-step approach production technique to form has simultaneously also reduced the heating surface area of resin.Through test of many times, thermotolerance can reach 100 ℃ in the production of wheel fetal membrane, helps enhancing productivity.
Embodiment
Below in conjunction with specific embodiment the present invention is carried out detailed analysis;
Embodiment 1:
The weight percent of each component is: magnesium salt whisker 15%, and alkali-free glass fiber 15%, white titanium pigment 4%, silicon-dioxide: 2%, dispersed lubricant 6%, lime carbonate (30 μ m) 42%, vector resin 16%.
Preparing method: at first that the accurate weighing of each compositions in weight percentage is good subsequent use; Place high-speed mixer to carry out the mixed at high speed oven dry magnesium salt whisker, alkali-free glass fiber, silicon-dioxide, lime carbonate and white titanium pigment then; Add behind dispersed lubricant, the vector resin compound is placed in the kneading pot that current control is 30-50A and carried out low speed mixing two minutes; Discharging is subsequent use, gets wherein half and mediates material and put into the single screw extrusion machine that the main frame temperature is controlled at 100-160 ℃ and extrude, and processes required masterbatch through fervent, air-cooled; Second half then does powdering, check, packing warehouse-in.The client in use needs in matrix resin, to use with the blending by a certain percentage of powdered product granular earlier, and purpose is for the packing film that makes production produces the heating surface area that granular prominence reduces the surface, thereby obtains higher resistance toheat; And through 48 hours progressively the cooling after; Adventitia is smooth, does not have and shrinks, and does not have distortion; Be prone to peel off, help taking turns the mass-producing benefit production of fetal membrane.
Embodiment 2:
The weight percent of each component is: magnesium salt whisker 12%, alkali-free glass fiber 12%, white titanium pigment 8%, silicon-dioxide: 1% dispersed lubricant 8%, lime carbonate (30 μ m) 40%, vector resin 19%.
The preparation method is with instance 1.
Embodiment 3:
The weight percent of component is: magnesium salt whisker 16%, alkali-free glass fiber 16%, white titanium pigment 2%, silicon-dioxide: 5% dispersed lubricant 4%, lime carbonate (30 μ m) 42%, vector resin 15%.
The preparation method is with instance 1.
Embodiment 4:
The weight percent of component is: magnesium salt whisker 12%, alkali-free glass fiber 12%, white titanium pigment 2%, silicon-dioxide: 1% dispersed lubricant 8%, lime carbonate (30 μ m) 45%, vector resin 20%.
The preparation method is with instance 1.
Claims (7)
1. heat-resisting novel material that is exclusively used in Vilaterm tire packing film is characterized in that the weight percent of each component is:
2. a kind of heat-resisting novel material that is exclusively used in Vilaterm tire packing film according to claim 1 is characterized in that described magnesium salt whisker is monoclinic crystal structure, and the whisker size has the atomic arrangement structure of high-sequential less than 1 μ m.
3. a kind of heat-resisting novel material that is exclusively used in Vilaterm tire packing film according to claim 1 is characterized in that described alkali-free glass fiber is a chopped strand, and staple is an aluminium boric acid silicate.
4. a kind of heat-resisting novel material that is exclusively used in Vilaterm tire packing film according to claim 1 is characterized in that described white titanium pigment molecule amount is 79.88, is a kind of pigment of white powder.
5. a kind of heat-resisting novel material that is exclusively used in Vilaterm tire packing film according to claim 1 is characterized in that described silicon-dioxide is synthetic silica.
6. a kind of heat-resisting novel material that is exclusively used in Vilaterm tire packing film according to claim 1 is characterized in that described dispersed lubricant is pure polyethylene wax.
7. a kind of preparation method who is exclusively used in the heat-resisting novel material of Vilaterm tire packing film according to claim 1; It is characterized in that; At first that the accurate weighing of each compositions in weight percentage is good subsequent use; Place high-speed mixer to carry out mixed at high speed oven dry magnesium salt whisker, alkali-free glass fiber, silicon-dioxide, lime carbonate and white titanium pigment then, add behind dispersed lubricant, the linear low density polyethylene compound is placed in the kneading pot that current control is 30-50A and carried out low speed mixing two minutes, discharging is subsequent use; Getting wherein half mediates material and puts into the single screw extrusion machine that the main frame temperature is controlled at 100-160 ℃ and extrude; Process required masterbatch through fervent, air-cooled, second half then does powdering, check, packing warehouse-in.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105120533A CN101982487B (en) | 2010-10-20 | 2010-10-20 | New heat-resistant material special for packaging film of polyethylene tyre and preparation method thereof |
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| CN2010105120533A CN101982487B (en) | 2010-10-20 | 2010-10-20 | New heat-resistant material special for packaging film of polyethylene tyre and preparation method thereof |
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| CN101982487A CN101982487A (en) | 2011-03-02 |
| CN101982487B true CN101982487B (en) | 2012-11-28 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103665532B (en) * | 2013-12-11 | 2015-11-18 | 甘肃大禹节水集团股份有限公司 | A kind of Micro-pressure ultra-thin wall drip irrigation belt |
| CN103937072B (en) * | 2014-04-29 | 2015-04-01 | 浙江普耐姆塑业股份有限公司 | Composite granule colored high-density polyethylene material and preparation method thereof |
| CN103937073B (en) * | 2014-04-29 | 2015-04-01 | 浙江普耐姆塑业股份有限公司 | Composite particle modified high-density polyethylene material and preparation method thereof |
| CN106810739A (en) * | 2016-12-02 | 2017-06-09 | 长兴天晟能源科技有限公司 | A kind of functional agglomerate for improving polyethylene packaging film toughness |
| CN110791135A (en) * | 2019-10-14 | 2020-02-14 | 安徽省安邦矿物有限公司 | Attapulgite mixture and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1328084A (en) * | 2001-07-03 | 2001-12-26 | 成都市华硕实业有限公司 | Composite of microfibre, superfine powder and polypropylene |
| CN101701079A (en) * | 2009-10-30 | 2010-05-05 | 昆明春叶塑料制成品有限公司 | Preparation method of polyethylene mulching film master batch for magnesium salt whisker reinforced smoke |
-
2010
- 2010-10-20 CN CN2010105120533A patent/CN101982487B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1328084A (en) * | 2001-07-03 | 2001-12-26 | 成都市华硕实业有限公司 | Composite of microfibre, superfine powder and polypropylene |
| CN101701079A (en) * | 2009-10-30 | 2010-05-05 | 昆明春叶塑料制成品有限公司 | Preparation method of polyethylene mulching film master batch for magnesium salt whisker reinforced smoke |
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Address after: 271200 Xintai City Development Zone, Tai'an, Shandong Patentee after: SHANDONG WAVE SHAIMULIAO GROUP CO., LTD. Address before: 271200 Xintai high and new technology development zone in Shandong Patentee before: Chunchaose Mother Material Co., Ltd., Shandong |
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Denomination of invention: A new heat resistant material for polyethylene tire packaging film and its preparation method Effective date of registration: 20200930 Granted publication date: 20121128 Pledgee: Shandong Xintai Rural Commercial Bank Co., Ltd Pledgor: SHANDONG WAVE SHAIMULIAO GROUP Co.,Ltd. Registration number: Y2020980006630 |
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Date of cancellation: 20210923 Granted publication date: 20121128 Pledgee: Shandong Xintai Rural Commercial Bank Co., Ltd Pledgor: SHANDONG WAVE SHAIMULIAO GROUP Co.,Ltd. Registration number: Y2020980006630 |