CN102504306B - Polyolefin thin film hot melt isolating agent and preparation method and using method thereof - Google Patents
Polyolefin thin film hot melt isolating agent and preparation method and using method thereof Download PDFInfo
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- CN102504306B CN102504306B CN 201110351164 CN201110351164A CN102504306B CN 102504306 B CN102504306 B CN 102504306B CN 201110351164 CN201110351164 CN 201110351164 CN 201110351164 A CN201110351164 A CN 201110351164A CN 102504306 B CN102504306 B CN 102504306B
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Abstract
The invention discloses a polyolefin thin film hot melt isolating agent and a preparation method and a using method thereof. The isolating agent is prepared by the following steps: preparing a viscous material at 70+/-5 DEG C by using calcium carbonate and talcpowder as main raw materials and adding silane coupling agent, a promoter, a modifier, a chelating agent and a tackifier based on the total weight of calcium carbonate and talcpowder; and blending the viscous material with a solvent and the tackifier based on the total weight of the viscous material to obtain a liquid product with a viscosity of 5 to 8 centipoises and a density of 2.1 to 2.5 g/cm<3>; the using method of the polyolefin thin film hot melt isolating agent is to print the prepared isolating agent onto the surface of a thin film to be isolated. The isolating agent provided by the invention has good isolating effect and can be coated uniformly; the isolating layer is not adhered with the isolated layer under high temperature and hot pressing conditions; and because of the syngetic effect of the promoter, the modifier, the chelating agent and the tackifier, the performance of the isolating agent is stable and the isolating agent does not denature at a low temperature (-20 DEG C) and does not degrade during normal-temperature storage.
Description
Technical field
What the present invention relates to is separant, specifically is a kind of polyolefin film hot melt separant and preparation and using method.
Background technology
Sell in the transportation at IT industry portioned product, light fixture, electronic product artwork, breakables and outlet instrument, instrument product, need the said products is carried out Shockproof packaging.Domestic this part commodity at present mainly use polyethylene film moulding blister material or adopt foamed polystyrene to become the product of definite shape as the once packing of commodity, the outside carton of also will using is as the secondary package of commodity, polyethylene film moulding blister material package goods is frangible, the polystyrol foam material package goods uses back recovery to packing material, utilizes difficult this Traditional Packing mode resource consumption very big, as commodity export, some countries have not accepted the product of above-mentioned wrapping material.
Comparatively Xian Jin packaging means is to adopt " Inflatable self locking shock-proof package material " to pack, and this inflation self-locking shock-resistant packaging material is sheet or the strip goods that several unit are formed that are shaped as according to packaged material; Each unit is the tunic stack, is separated out main air intake, is divided uptake, air storage chamber by hot thread between the tunic; Main air intake communicates with dividing uptake, air storage chamber; The unit communicates with main air intake between the unit, and dividing on the uptake has air inlet port, and the periphery of unit is by the hot thread packing.When making, according to the product production engineering specifications, both sides at main airway seal, air inlet unit (from latching segment) two-layer and outside base material one deck is bonded together in heat seal process, not bonding with other one deck, therefore when heat-sealing, could satisfy this technical requirements not needing bonding position to smear separant.
Summary of the invention
The objective of the invention is provides a kind of polyolefin film hot melt separant at the problems referred to above, for the manufacture of the isolation of air inlet unit and outside base material in the wrapping material hot sealing process process; A kind of preparation and using method of this separant are provided simultaneously.
The present invention is achieved through the following technical solutions: polyolefin film hot melt separant is main raw material for 5～10 parts with 55～70 parts in calcium carbonate, talcum powder, interpolation serves as to calculate 1～2 part of 3～4 parts of 3～5 parts of 4～7 parts of silane coupling agents, promotor, properties-correcting agent, sequestrant, 5～7 parts of the tackifier of benchmark with calcium carbonate, talcum powder total amount, after fully mixing, under 70 ℃ ± 5 ℃ conditions of temperature, make thick product; At room temperature adding with thick product total amount serves as to calculate 30～50 parts of the ethyl acetate of benchmark, the liquid product of 15～25 parts of furnishing viscosity 5～8 centipoises of tackifier, density 2.1～2.5 grams/cubic centimetre.
Group component is parts by weight described in the scheme, and raw material calcium carbonate granularity wherein is selected from 850～1100 orders, is best with 1000 orders.
Talcum powder (hydrated magnesium silicate), molecular formula are Mg
3[Si
4O
10] (OH)
2Because it is good that talcum has oilness, anti-glutinous connection, opacifying power, crystal structure is stratiform, so have the trend that easily splits into scale and special slip, the effect of separant is exactly to stop between two aspect macromolecular chains of hot melt film to tangle mutually, because the talcum powder separability is good, poor adhesive force, separant applies the back and easily produces obscission, can not satisfy this product production engineering specifications, and this will remedy this respect deficiency by other combination of materials.
Silane coupling agent in the scheme is specially vinyl silanes, as vinyltrimethoxy silane, tetraethyl silicate also can use methacryloxy silane, as 3-glycidyl ether oxygen base propyl trimethoxy silicane, the 3-methacryloxypropyl trimethoxy silane substitutes.Silane coupling agent has bonding or crosslinked action, in this programme, be used for inorganic material bonding between the organic materials, by using silane coupling agent, can between the interface of inorganic substance and organic substance, erect " molecule bridge ", the material of two kinds of character great disparities is linked together.
Promotor is zinc oxide, because active zinc flower has good activation performance, can promote calcium carbonate, talcous surface activation, makes the different material component can fine mutual mixing, can substitute with magnesium oxide in addition.
Properties-correcting agent is stearic acid, and its effect is to improve calcium carbonate and talcum powder surfactivity, plays synergistic effect with promotor zinc oxide, and acidity value content is controlled between 205～211.
The sequestrant diethylene triamine pentacetic acid (DTPA), chelating value 253 ± 2mg/g, because sequestrant has the ring texture title complex, distinguishing feature is that affinity is good, Heat stability is good is easy to be dissolved in organic solvent, plays good mediation effect in the preparation of raw material process.Can be the ethylenediamine tetraacetic acid (EDTA) replacement of 339 ± 2mg/g with chelating value in addition.
Solvent is ethyl acetate, adopts ethyl acetate to make solvent, and its effect is product dissolving and the evenly dispersion that above-mentioned all material are produced, and also can use acetone to substitute.
Tackifier among the present invention are that the polymerization degree is 900～1100 polyisobutene, polyisobutene effect in the present invention is that the thick shape liquid product of making is evenly distributed on the coated film surface, can effectively improve the even distributed degrees of separant, realize suitability for industrialized production.
The concrete preparation method of separant:
A, calcium carbonate, talcum powder surface activation are handled: will place container by calcium carbonate, the talcum powder that formula ratio takes by weighing earlier, add the silane coupling agent that takes by weighing by calcium carbonate, talcum powder total amount during stirring heating temperature to 70 ± 5 ℃, after mixing, add the promotor, properties-correcting agent stearic acid, the sequestrant that take by weighing by calcium carbonate, talcum powder total amount under the uniform temp condition successively, fully stir the back and add polyisobutene, after fully stirring, making thick product, to be down to room temperature stand-by;
B, mediation: adding in above-mentioned thick product with thick product weight serves as to calculate the ethyl acetate of benchmark, adds polyisobutene again, and being modulated into kinematic viscosity is the liquid product of 5～8 centipoises, density 2.1～2.5 grams/cubic centimetre.
Using method provided by the invention is that the separant that modulates is coated to separant on the film surface that needs to isolate with mode of printing.
Adopt the positively effect of technique scheme: product isolation effect provided by the invention is good, coating evenly, even not glutinous by isolation aspect sealing coat under the elevated temperature heat pressure condition, under the synergy of promotor, properties-correcting agent, sequestrant and tackifier, the separant stable performance, low temperature (20 ℃) unchangeability, normal temperature storage is not decomposed.
Embodiment: the invention will be further described below in conjunction with accompanying drawing:
Embodiment 1
A, calcium carbonate, the talcum powder surface activation is handled: the 850 order calcium carbonate that will take by weighing by formula ratio are 70 parts earlier, talcum powder places container for 10 parts, add during stirring heating temperature to 70 ± 5 ℃ and press calcium carbonate, 6 parts of the silane coupling agent vinyl Trimethoxy silanes that the talcum powder total amount takes by weighing, after stirring 5 minutes abundant mixing, add successively under the uniform temp condition and press calcium carbonate, 4 parts in the promotor zinc oxide that the talcum powder total amount takes by weighing, 4 parts of properties-correcting agent stearic acid, 1.5 parts of sequestrant diethylene triamine pentacetic acid (DTPA)s, fully stir that to add the polymerization degree after 15 minutes be 15 parts of 900 polyisobutene, stir after 15 minutes, it is stand-by that the thick product of gained is down to room temperature;
B, mediation: adding in above-mentioned thick product with thick product weight serves as to calculate 30 parts of the ethyl acetate of benchmark, adding the polymerization degree again is 15 parts of 1100 polyisobutene, is modulated into the liquid product of viscosity 5 centipoises, density 2.5 grams/cubic centimetre after mixing.
Embodiment 2
A, calcium carbonate, the talcum powder surface activation is handled: the 1000 order calcium carbonate that will take by weighing by formula ratio are 58 parts earlier, talcum powder places container for 5 parts, add during stirring heating temperature to 70 ± 5 ℃ and press calcium carbonate, 5 parts of the silane coupling agent tetraethyl silicate that the talcum powder total amount takes by weighing, after stirring 10 minutes abundant mixing, add successively under the uniform temp condition and press calcium carbonate, 3.5 parts in the promotor magnesium oxide that the talcum powder total amount takes by weighing, 3.5 parts of properties-correcting agent stearic acid, 1 part of sequestrant diethylene triamine pentacetic acid (DTPA), fully stir that to add the polymerization degree after 15 minutes be 25 parts of 1100 polyisobutene, stir after 10-20 minute, it is stand-by that the thick product of gained is down to room temperature;
B, mediation: adding in above-mentioned thick product with thick product weight serves as to calculate 50 parts of the ethyl acetate of benchmark, adding the polymerization degree again is that 900 polyisobutene add-ons are 25 parts, is modulated into the liquid product of viscosity 8 centipoises, density 2.1 grams/cubic centimetre after mixing.
Embodiment 3
A, calcium carbonate, the talcum powder surface activation is handled: the 1000 order calcium carbonate that will take by weighing by formula ratio are 55 parts earlier, talcum powder places container for 7 parts, add during stirring heating temperature to 70 ± 5 ℃ and press calcium carbonate, 4 parts of the silane coupling agent vinyl Trimethoxy silanes that the talcum powder total amount takes by weighing, after stirring 10 minutes abundant mixing, add successively under the uniform temp condition and press calcium carbonate, 4.5 parts in the promotor zinc oxide that the talcum powder total amount takes by weighing, 3 parts of properties-correcting agent stearic acid, 2 parts of sequestrant ethylenediamine tetraacetic acid (EDTA)s, fully stir that to add the polymerization degree after 15 minutes be 23 parts of 900 polyisobutene tackifier, stir after 15 minutes, it is stand-by that the thick product of gained is down to room temperature;
B, mediation: adding in above-mentioned thick product with thick product weight serves as to calculate 40 parts of the ethyl acetate of benchmark, adding the polymerization degree again is that 1100 polyisobutene add-ons are 23 parts, is modulated into the liquid product of viscosity 7.5 centipoises, density 2.2 grams/cubic centimetre after mixing.
Embodiment 4
A, calcium carbonate, the talcum powder surface activation is handled: the 1100 order calcium carbonate that will take by weighing by formula ratio are 60 parts earlier, talcum powder places container for 6 parts, add during stirring heating temperature to 70 ± 5 ℃ and press calcium carbonate, 5 parts of the silane coupling agent tetraethyl silicate that the talcum powder total amount takes by weighing, after stirring 10 minutes abundant mixing, add successively under the uniform temp condition and press calcium carbonate, 5 parts in the promotor zinc oxide that the talcum powder total amount takes by weighing, 3.5 parts of properties-correcting agent stearic acid, 1 part of sequestrant ethylenediamine tetraacetic acid (EDTA), fully to add the polymerization degree after 15 minutes be 23 parts of 900 polyisobutene tackifier to stir about, stir after 10 minutes, it is stand-by that the thick product of gained is down to room temperature;
B, mediation: adding in above-mentioned thick product with thick product weight serves as to calculate 45 parts in the acetone of benchmark, adding the polymerization degree again is that 900 polyisobutene add-ons are 23 parts, is modulated into the liquid product of viscosity 7.5 centipoises, density 2.2 grams/cubic centimetre after mixing.
Embodiment 5
A, calcium carbonate, the talcum powder surface activation is handled: the 900 order calcium carbonate that will take by weighing by formula ratio are 65 parts earlier, talcum powder places container for 8 parts, add during stirring heating temperature to 70 ± 5 ℃ and press calcium carbonate, 6 parts of the silane coupling agent 3-glycidyl ether oxygen base propyl trimethoxy silicanes that the talcum powder total amount takes by weighing, after stirring 5 minutes abundant mixing, add successively under the uniform temp condition and press calcium carbonate, 3 parts in the promotor zinc oxide that the talcum powder total amount takes by weighing, 4 parts of properties-correcting agent stearic acid, 1.5 parts of sequestrant diethylene triamine pentacetic acid (DTPA)s, fully stir that to add the polymerization degree after 15 minutes be 20 parts of 900 polyisobutene, stir after 15 minutes, it is stand-by that the thick product of gained is down to room temperature;
B, mediation: adding in above-mentioned thick product with thick product weight serves as to calculate 45 parts of the ethyl acetate of benchmark, adding the polymerization degree again is 20 parts of 900 polyisobutene, is modulated into the liquid product of viscosity 5.6 centipoises, density 2.3 grams/cubic centimetre after mixing.
Embodiment 6
A, calcium carbonate, the talcum powder surface activation is handled: the 1000 order calcium carbonate that will take by weighing by formula ratio are 68 parts earlier, talcum powder places container for 9 parts, add during stirring heating temperature to 70 ± 5 ℃ and press calcium carbonate, 7 parts of the silane coupling agent 3-methacryloxypropyl trimethoxy silane that the talcum powder total amount takes by weighing, after stirring 5 minutes abundant mixing, add successively under the uniform temp condition and press calcium carbonate, 4 parts in the promotor magnesium oxide that the talcum powder total amount takes by weighing, 4 parts of properties-correcting agent stearic acid, 1.5 parts of sequestrant ethylenediamine tetraacetic acid (EDTA)s, fully stir that to add the polymerization degree after 15 minutes be 18 parts of 900 polyisobutene, stir after 15 minutes, it is stand-by that the thick product of gained is down to room temperature;
B, mediation: adding in above-mentioned thick product with thick product weight serves as to calculate 35 parts in the acetone of benchmark, adding the polymerization degree again is 18 parts of 1100 polyisobutene, is modulated into the liquid product of viscosity 5.5 centipoises, density 2.4 grams/cubic centimetre after mixing.
Claims (5)
1. polyolefin film hot melt separant, it is characterized in that: this separant is that 850 ~ 1100 purpose calcium carbonate 55-70 parts, talcum powder 5-10 part are main raw material with granularity, and silane coupling agent 4-7 part, promotor 3-5 part, properties-correcting agent 3-4 part, sequestrant 1-2 part, the tackifier 15-25 part of adding with calcium carbonate and talcum powder total weight make thick product under 70 ℃ ± 5 ℃ temperature; Again with thick product 15 ~ 25 parts of liquid products that are modulated into viscosity 5 ~ 8 centipoises, density 2.1 ~ 2.5 grams/cubic centimetre of solvent 30-50 part, tackifier in order to thick product total weight; Described silane coupling agent vinyl silane; Described promotor is zinc oxide; Described properties-correcting agent is stearic acid; Described sequestrant is diethylene triamine pentacetic acid (DTPA); Described tackifier are polyisobutene; Described solvent is ethyl acetate.
2. polyolefin film hot melt separant according to claim 1, it is characterized in that: described its granularity of raw material calcium carbonate is selected from 1000 orders.
3. polyolefin film hot melt separant according to claim 1, it is characterized in that: described its granularity of raw material calcium carbonate is selected from 900 orders.
4. polyolefin film hot melt separant according to claim 1, it is characterized in that: its polymerization degree of described polyisobutene is 900 ~ 1100.
5. using method that is used for the described polyolefin film hot melt of claim 1 separant, it is characterized in that: this using method is that a separant that modulates is coated to separant on the film surface of needs isolation with mode of printing.
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| CN 201110351164 CN102504306B (en) | 2011-11-09 | 2011-11-09 | Polyolefin thin film hot melt isolating agent and preparation method and using method thereof |
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| CN 201110351164 CN102504306B (en) | 2011-11-09 | 2011-11-09 | Polyolefin thin film hot melt isolating agent and preparation method and using method thereof |
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Application publication date: 20120620 Assignee: Daqing Xiangyun Plastic Product Co., Ltd. Assignor: You Jun Contract record no.: 2014230000216 Denomination of invention: Polyolefin thin film hot melt isolating agent and preparation method and using method thereof Granted publication date: 20130904 License type: Exclusive License Record date: 20140522 |
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Granted publication date: 20130904 Termination date: 20181109 |