CN103740318A - Regenerative sponge glue - Google Patents
Regenerative sponge glue Download PDFInfo
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- CN103740318A CN103740318A CN201410013786.0A CN201410013786A CN103740318A CN 103740318 A CN103740318 A CN 103740318A CN 201410013786 A CN201410013786 A CN 201410013786A CN 103740318 A CN103740318 A CN 103740318A
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Abstract
The invention discloses a regenerative sponge glue which is prepared from the following raw materials in parts by weight: 110-125 parts of polyether polyol, 0.007-0.009 part of dibutyltin dilaurate, 0.029-0.031 part of ethanol amine, 50-60 parts of polymethylene polyphenyl polyisocyanate, 60-70 parts of diphenyl methane diisocyanate and 150-170 parts of auxiliary material. The regenerative sponge glue provided by the invention is high in degree of adhesion, has the characteristics of elasticity, good durability, high curing speed, low cost, strong tension, and no three-waste emission during production of products, does not contain benzene homologs and derivates, and is a latest-generation environment-friendly strong regenerative sponge glue. After sponge waste leftovers are recovered and refused, the generated new sponge is capable of ensuring original softness, and free from causing gelling and hardening on an adhering point, so that the regenerative sponge can be suitable for the fields such as furniture, automotive trims, sofas and the like with high requirement on softness of the sponge.
Description
Technical field
The present invention relates to sponge recycling field, be specifically related to a kind of renewable sponge glue.
Background technology
Sponge quality is soft, To Be Protected from Heat, easy firing, to add that tolylene diisocyanate (TDI) or diphenylmethanediisocyanate (MDI) carry out the reaction of glue connection and the Plastic product that produces, according to the size of inherent bubble, reflects various density with urethane, can by the mode of molding, make different shape as required, be widely used in all trades and professions, be mainly used in the filling of shockproof, insulation, material, the fields such as toy for children.Due to large to sponge demand on market, and some sponge factories remain a large amount of sponge scrap stock, particle etc. after sponge processing and utilization at present, generally all regard that refuse abandons or directly burn, and cause the very large wasting of resources and environmental pollution.In the face of sponge utilizes huge market, have a large amount of sponge particles and produce, how these particles are effectively reclaimed, merge use again, saving resource, reduces environmental pollution to greatest extent, has become contemporary society's technical problem anxious to be resolved.
Summary of the invention
The object of the invention is for the deficiencies in the prior art part, provide a kind of and there is elasticity, patience is good, the renewable sponge glue that curing speed is fast, this glue can be to sponge particle quick-binding, materials are economized, each bonding point glue fully permeates, merges, and each fragment intersection is soft, non-sclerous, has guaranteed the pliability of renewable sponge.
The technical scheme that the present invention solves its technical problem is: a kind of renewable sponge glue, this glue is become by the mixed raw material of following parts by weight: 110～125 parts of polyether glycols, 0.007～0.009 part of dibutyltin dilaurate, 0.029～0.031 part of thanomin, 50～60 parts of poly methylene poly phenyl poly isocyanates, 60～70 parts of diphenylmethanediisocyanates, 150～170 parts of methylcarbonates.
Preferably, described renewable sponge glue is become by the mixed raw material of following parts by weight: 115～123 parts of polyether glycols, 0.0075～0.0085 part of dibutyltin dilaurate, 0.0295～0.0305 part of thanomin, 53～58 parts of poly methylene poly phenyl poly isocyanates, 62～68 parts of diphenylmethanediisocyanates, 155～167 parts of methylcarbonates.
Preferably, described renewable sponge glue is become by the mixed raw material of following parts by weight: 120 parts of polyether glycols, 0.008 part of dibutyltin dilaurate, 0.03 part of thanomin, 55 parts of poly methylene poly phenyl poly isocyanates, 65 parts of diphenylmethanediisocyanates, 160 parts of methylcarbonates.
A kind of renewable sponge glue production technique, this technique comprises the following steps: according to the parts by weight of raw material described in technique scheme, first polyether glycol being put into stainless steel cauldron heats 2.5～3.5 hours to 75～85 ℃, then be cooled to 35～45 ℃, add dibutyltin dilaurate and thanomin reaction 2～3 hours and in reaction process, be heated to gradually 90～98 ℃, add again poly methylene poly phenyl poly isocyanate, insulation reaction added diphenylmethanediisocyanate after 2～3 hours, insulation reaction is extracted into high-speed stirring cylinder after 5.5～6.5 hours, finally add auxiliary material methylcarbonate to stir 50～90min, go out finished product.
As manufacture craft preferably: the parts by weight of described raw material are: 115～123 parts of polyether glycols, 0.0075～0.0085 part of dibutyltin dilaurate, 0.0295～0.0305 part of thanomin, 53～58 parts of poly methylene poly phenyl poly isocyanates, 62～68 parts of diphenylmethanediisocyanates, 155～167 parts of methylcarbonates.
As manufacture craft further preferably: the described parts by weight that respectively add raw material are: 120 parts of polyether glycols, 0.008 part of dibutyltin dilaurate, 0.03 part of thanomin, 55 parts of poly methylene poly phenyl poly isocyanates, 65 parts of diphenylmethanediisocyanates, 160 parts of methylcarbonates.
Beneficial effect: renewable sponge glue degree of adhesion of the present invention is high, have elasticity, patience is good, and curing speed is fast, cost is low, pulling force is strong, products production three-waste free discharge, containing benezene material, is not the powerful renewable sponge glue of latest generation environmental protection.Glue of the present invention is specially for sponge characteristics design, fine each sponge fragment binding surface that incorporates of energy, after to sponge, discarded scrap stock reclaim, merge, the new sponge generating can guarantee original pliability, at bonding point, there will not be gel, hardening phenomenon, make renewable sponge still can be applicable to the field that furniture, automotive trim, sofa etc. are had relatively high expectations to sponge pliability.Glue bounding force of the present invention is strong, can permeate with sponge rapidly, and conservation during use, a little glue can carry out effectively bonding (materials ratio can reach 1:20) to a large amount of sponges.As everyone knows, sponge is widely used, in production and application, can produce a large amount of waste materials, abandon and not only cause a large amount of wastings of resources, and can cause severe contamination to environment, utilize glue of the present invention to carry out effective recycling to waste gas sponge, not only utilize to greatest extent resource, and can guarantee the bond quality of sponge, make the renewable sponge that generates still softer, still can be applicable to again all trades and professions, bonding unlike the common glue circulating on market after, sponge seriously can be hardened, even no longer there is utility value.The present invention has obvious economic benefit and social benefit to renewable sponge, be enterprise save and develop a circular economy, the another ground zero of protection of the environment, the market requirement is large, prospect for sales is very wide.
Embodiment
Below in conjunction with preferred embodiment, the present invention will be further described.
Embodiment 1: first polyether glycol 1200kg is placed in stainless steel cauldron and heats 3 hours to 80 ℃, then be cooled to 40 ℃, add dibutyltin dilaurate 80g and thanomin 300g reaction 2.5 hours, and in reaction process, be heated to gradually 95 ℃ (reacting temperature after 2.5 hours is 95 ℃), add again poly methylene poly phenyl poly isocyanate 550kg, insulation reaction adds diphenylmethanediisocyanate 650kg after 2.5 hours, insulation reaction is extracted into high-speed stirring cylinder after 6 hours, finally add auxiliary material methylcarbonate 1600kg to stir 1 hour, go out finished product.Make environmental protection of the present invention, renewable sponge glue that bounding force is strong.
Embodiment 2: first polyether glycol 1120kg is placed in stainless steel cauldron and heats 2.7 hours to 76 ℃, then be cooled to 37 ℃, add dibutyltin dilaurate 73g and thanomin 305g reaction 2 hours, and in reaction process, be heated to gradually 92 ℃ (reacting temperature after 2 hours is 98 ℃), add again poly methylene poly phenyl poly isocyanate 590kg, insulation reaction adds diphenylmethanediisocyanate 690kg after 2.2 hours, insulation reaction is extracted into high-speed stirring cylinder after 6.3 hours, finally add auxiliary material methylcarbonate 1680kg to stir 85min, go out finished product.Make environmental protection of the present invention, renewable sponge glue that bounding force is strong.
Embodiment 3: first by polyether glycol: 1248kg is placed in stainless steel cauldron and heats 3.3 hours to 83 ℃, then be cooled to 43 ℃, add dibutyltin dilaurate 86g and thanomin 294g reaction 3 hours, and in reaction process, be heated to gradually 98 ℃ (reacting temperature after 3 hours is 98 ℃), add again poly methylene poly phenyl poly isocyanate 510kg, insulation reaction adds diphenylmethanediisocyanate 600kg after 2.8 hours, insulation reaction is extracted into high-speed stirring cylinder after 5.7 hours, finally add auxiliary material methylcarbonate 1520kg to stir 50min, go out finished product.Make environmental protection of the present invention, renewable sponge glue that bounding force is strong.
Embodiment 4: first polyether glycol 1180 kg are placed in stainless steel cauldron and are heated 3 hours to 85 ℃, then be cooled to 40 ℃, add dibutyltin dilaurate 78g and thanomin 302g reaction 2 hours, and in reaction process, be heated to gradually 96 ℃ (reacting temperature after 2 hours is 96 ℃), add again poly methylene poly phenyl poly isocyanate 570kg, insulation reaction adds diphenylmethanediisocyanate 670kg after 2 hours, insulation reaction is extracted into high-speed stirring cylinder after 6 hours, finally add auxiliary material methylcarbonate 1650kg to stir 1 hour, go out finished product.Make environmental protection of the present invention, renewable sponge glue that bounding force is strong.
Embodiment 5: first polyether glycol 1225 kg are placed in stainless steel cauldron and are heated 2.6 hours to 85 ℃, then be cooled to 42 ℃, add dibutyltin dilaurate 84g and thanomin 295g reaction 2.8 hours, and in reaction process, be heated to gradually 95 ℃ and (react after 2.8 hours, temperature is 95 ℃), add again poly methylene poly phenyl poly isocyanate 535kg, insulation reaction adds diphenylmethanediisocyanate 623kg after 2.3 hours, insulation reaction is extracted into high-speed stirring cylinder after 6.5 hours, finally add auxiliary material methylcarbonate 1560kg to stir 70min, go out finished product.Make environmental protection of the present invention, renewable sponge glue that bounding force is strong.
Embodiment 6: utilize glue of the present invention to make the related experiment of renewable sponge moulding: first to prepare raw material: water: 1g, renewable sponge glue: 1g, sponge: 20g; Then above-mentioned raw materials is mixed and is stirred, after 5 minutes, put into special wooden case, cold pressurization 3 hours, hotter pressurization 15 minutes, sponge gets final product curing molding.Interpretation: the features such as product of the present invention has elasticity, patience is good, and curing speed is fast, easy to use, economize glue (1:20), the cold bonding time is long, bonding again applicable to the broken sponge of various density.
Each feedstock analysis of above-described embodiment is as follows:
Polyether glycol: be that main chain contains ehter bond (-R-O-R-), end group or side group contain the oligopolymer that is greater than 2 hydroxyls (-OH), be to take low molecular weight polyols, polyamine or be initiator containing the compound of reactive hydrogen, form with olefin oxide ring-opening polymerization under catalyst action.Olefin oxide is mainly propylene oxide (propylene oxide), and ethylene oxide (oxyethane) is wherein important with propylene oxide.The polyvalent alcohols such as the trivalent alcohols such as polyvalent alcohol initiator has the dibasic alcohol such as propylene glycol, ethylene glycol, glycerine TriMethylolPropane(TMP) and season penta, tetrol, Xylitol, sorbyl alcohol, sucrose; Amine initiator is diethylamine, diethylenetriamine etc.Polyether glycol requirement acid number as this patent glue main raw material is faint acidity, containing potassium, sodium ion amount, should be less than 10, and water content is less than 0.05%, otherwise likely produces gel.With the sizing agent of polyether glycol preparation, have good water tolerance, shock resistance and low temperature properties, have good cohesive force to metal, glass, pottery, leather, fiber etc.
Dibutyltin dilaurate (T-12): faint yellow transparent oily liquid, be dissolved in general softening agent and solvent, water insoluble, viscosity :≤380mPas(25 ℃), moisture :≤0.3%.T-12 is the catalyzer of strong gelling properties, can be used for polyurethane elastomer, tackiness agent, seal gum, hard bubbles, moulded foam etc.
Thanomin: be at room temperature water white thick liquid, have the smelly solvability of water absorbability and ammonia, miscible with water, methyl alcohol, ethanol, acetone etc., be slightly soluble in benzene, ether and tetracol phenixin.The aqueous solution is alkalescence. there is extremely strong water absorbability, can absorb sour gas, again can be by the air release absorbing after heating. there are emulsification and bubble, can generate salt with mineral acid and organic acid, generate ester with acid anhydrides effect, mainly as synthetic resins and softening agent, vulcanizing agent, promotor and the whipping agent of rubber and the intermediate of agricultural chemicals, medicine and dyestuff etc.
Poly methylene poly phenyl poly isocyanate: be called for short PAPI, light yellow to brown thick liquid. irritant smell, 218 ℃ of burning-points, zero pour <10 ℃, viscosity (25 ℃) is 200 ~ 1000mPa.s.PAPI is actually by 50% diphenylmethanediisocyanate and 50% functionality and is greater than the mixture that more than 2 polyisocyanates forms, and during intensification, autohemagglutination effect can occur, and is dissolved in chlorobenzene, orthodichlorobenzene, toluene etc.The activity of PAPI is low, and steam forces down, and is one of percentage of tolylene diisocyanate, therefore toxicity is very low, and maximum allowable concentration 0.2mg/m3 in air.Mainly for the manufacture of polyurethane glue stick, also can directly add in rubber based adhesives, improve the adhesiveproperties of rubber and nylon or polyester line.
Diphenylmethanediisocyanate: be called for short MDI, white is touched solid to faint yellow melting, irritant stink during heating, steaming pressure ratio TDI's is low, little to respiratory organs pungency, and in air, maximum allowable concentration is 0.20mg/m3.
Methylcarbonate: abbreviation DMC is a kind of water white transparency during normal temperature, omit scent of, micro-sweet liquid, 4 ℃ of fusing points, 90.1 ℃ of boiling points, density 1.069 g/cm
3, be insoluble in water, but immiscible organic solvent that can be nearly all with alcohol, ether, ketone etc.DMC normal pressure be a kind of nontoxic, environmental-protecting performance is excellent, broad-spectrum industrial chemicals, it is a kind of important organic synthesis intermediate, in molecular structure, contain the functional groups such as carbonyl, methyl and methoxyl group, thereby can be widely used in carbonylation, methylate, the organic synthesis such as methoxylation and carbonyl methylate, there is multiple reactivity worth, for the production of multiple Chemicals such as polycarbonate, isocyanic ester, polyurethane(s), polycarbonate diol, allyl diglycol carbonates.Have aborning the safety used, convenient, pollute less, the easy feature such as transportation.Because methylcarbonate toxicity is less, be a kind of " green " Chemicals with development prospect.
The description that above-mentioned preferred embodiment is carried out for renewable sponge glue; illustrative and not restrictive; can enumerate several embodiment according to institute's limited range, therefore in the variation and the modification that do not depart under general idea of the present invention, within protection scope of the present invention should be belonged to.
Claims (6)
1. a renewable sponge glue, it is characterized in that: this glue is become by the mixed raw material of following parts by weight: 110～125 parts of polyether glycols, 0.007～0.009 part of dibutyltin dilaurate, 0.029～0.031 part of thanomin, 50～60 parts of poly methylene poly phenyl poly isocyanates, 60～70 parts of diphenylmethanediisocyanates, 150～170 parts of methylcarbonates.
2. renewable sponge glue according to claim 1, it is characterized in that: described renewable sponge glue is become by the mixed raw material of following parts by weight: 115～123 parts of polyether glycols, 0.0075～0.0085 part of dibutyltin dilaurate, 0.0295～0.0305 part of thanomin, 53～58 parts of poly methylene poly phenyl poly isocyanates, 62～68 parts of diphenylmethanediisocyanates, 155～167 parts of methylcarbonates.
3. renewable sponge glue according to claim 1, it is characterized in that: described renewable sponge glue is become by the mixed raw material of following parts by weight: 120 parts of polyether glycols, 0.008 part of dibutyltin dilaurate, 0.03 part of thanomin, 55 parts of poly methylene poly phenyl poly isocyanates, 65 parts of diphenylmethanediisocyanates, 160 parts of methylcarbonates.
4. a renewable sponge glue production technique, it is characterized in that: this technique comprises the following steps: according to the parts by weight of raw material described in claim 1, first polyether glycol being put into stainless steel cauldron heats 2.5～3.5 hours to 75～85 ℃, then be cooled to 35～45 ℃, add dibutyltin dilaurate and thanomin reaction 2～3 hours and in reaction process, be heated to gradually 90～98 ℃, add again poly methylene poly phenyl poly isocyanate, insulation reaction added diphenylmethanediisocyanate after 2～3 hours, insulation reaction is extracted into high-speed stirring cylinder after 5.5～6.5 hours, finally add auxiliary material methylcarbonate to stir 50～90min, go out finished product.
5. renewable sponge glue production technique according to claim 4, it is characterized in that: the parts by weight of described raw material are: 115～123 parts of polyether glycols, 0.0075～0.0085 part of dibutyltin dilaurate, 0.0295～0.0305 part of thanomin, 53～58 parts of poly methylene poly phenyl poly isocyanates, 62～68 parts of diphenylmethanediisocyanates, 155～167 parts of methylcarbonates.
6. renewable sponge glue production technique according to claim 4, it is characterized in that: the parts by weight of described raw material are: 120 parts of polyether glycols, 0.008 part of dibutyltin dilaurate, 0.03 part of thanomin, 55 parts of poly methylene poly phenyl poly isocyanates, 65 parts of diphenylmethanediisocyanates, 160 parts of methylcarbonates.
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| CN201410013786.0A CN103740318B (en) | 2014-01-13 | 2014-01-13 | Regenerative sponge glue |
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| CN201410013786.0A CN103740318B (en) | 2014-01-13 | 2014-01-13 | Regenerative sponge glue |
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| CN103740318B CN103740318B (en) | 2015-09-09 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105482437A (en) * | 2015-12-16 | 2016-04-13 | 芜湖馨源海绵有限公司 | Regenerated sponge with good elasticity and large density and processing technology thereof |
| CN109705796A (en) * | 2019-01-09 | 2019-05-03 | 匠欣环保家居用品科技(浙江)有限公司 | A kind of high fastness discards sponge adhesive and preparation method |
| CN112457815A (en) * | 2020-11-25 | 2021-03-09 | 安吉巨树新材料科技有限公司 | Single-component polyurethane adhesive for regenerated sponge and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1057281A (en) * | 1991-06-08 | 1991-12-25 | 陈凤福 | Mild polyurethane waste foam regenerated bonding agent and method |
| CN101319129A (en) * | 2007-06-08 | 2008-12-10 | 上海精细文化用品有限公司 | Single-component solvent-free damp solidifying polyurethane adhesion agent and method of producing the same |
| CN101870858A (en) * | 2010-06-28 | 2010-10-27 | 北京高盟新材料股份有限公司 | Low-cost adhesive and preparation method thereof |
| WO2012154940A1 (en) * | 2011-05-12 | 2012-11-15 | H.B. Fuller Company | Hot melt moisture cure adhesive compositions |
-
2014
- 2014-01-13 CN CN201410013786.0A patent/CN103740318B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1057281A (en) * | 1991-06-08 | 1991-12-25 | 陈凤福 | Mild polyurethane waste foam regenerated bonding agent and method |
| CN101319129A (en) * | 2007-06-08 | 2008-12-10 | 上海精细文化用品有限公司 | Single-component solvent-free damp solidifying polyurethane adhesion agent and method of producing the same |
| CN101870858A (en) * | 2010-06-28 | 2010-10-27 | 北京高盟新材料股份有限公司 | Low-cost adhesive and preparation method thereof |
| WO2012154940A1 (en) * | 2011-05-12 | 2012-11-15 | H.B. Fuller Company | Hot melt moisture cure adhesive compositions |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105482437A (en) * | 2015-12-16 | 2016-04-13 | 芜湖馨源海绵有限公司 | Regenerated sponge with good elasticity and large density and processing technology thereof |
| CN109705796A (en) * | 2019-01-09 | 2019-05-03 | 匠欣环保家居用品科技(浙江)有限公司 | A kind of high fastness discards sponge adhesive and preparation method |
| CN112457815A (en) * | 2020-11-25 | 2021-03-09 | 安吉巨树新材料科技有限公司 | Single-component polyurethane adhesive for regenerated sponge and preparation method thereof |
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