CN104910836A - Veneer glue and preparation method thereof - Google Patents
Veneer glue and preparation method thereof Download PDFInfo
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- CN104910836A CN104910836A CN201510257221.1A CN201510257221A CN104910836A CN 104910836 A CN104910836 A CN 104910836A CN 201510257221 A CN201510257221 A CN 201510257221A CN 104910836 A CN104910836 A CN 104910836A
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Abstract
The invention discloses a veneer glue and a preparation method thereof. The veneer glue is composed of the following raw materials: vinyl acetate, vinyl versatate, n-butyl methacrylate, acrylic acid, methacrylic acid, an environment-friendly plasticizer, polyvinyl alcohol, a special cross-linking monomer, an environmentally reactive anionic emulsifying agent, an environmentally reactive nonionic emulsifying agent and deionized water. The veneer glue finished product does not contain formaldehyde, heavy metal, halide and the like, and meets the state promulgated Interior Decoration Material Adhesive Harmful Substance Limit GB18583-2008 standard. The veneer glue is nontoxic, odor-free, safe and reliable. When the glue is used in fireproof board and veneer binding, the veneer is prevented from yellowing, and has a good anti-aging effect. With the glue, the veneer is flexible, and can resist bending and glue failure. The veneer can resist glue failure after 7 days of soaking in 45 DEG C water.
Description
Technical field
The present invention relates to aqueous binder field, in particular wooden hide glue of a kind of subsides and preparation method thereof.
Background technology
Paste wooden hide glue be one be mainly used in PLASTIC LAMINATED (melamine plate), clamping plate, with the laminating of natural veneer.General employing is hot melt adhesive or urea-formaldehyde glue at present.Hot melt adhesive is oily gum, needs first colloidal sol to re-use, and containing benzene kind solvent, atmosphere pollution, and seriously harm humans is healthy, in addition, adopts Hot melt adhesive plaster wood skin easily aging, is subject to weather effect, and after half a year, wooden skin will start xanthochromia and comes unglued and come off.And urea-formaldehyde glue is water-based, but containing a large amount of formaldehyde and urea, pole not environmentally.And adopt hot melt adhesive or urea-formaldehyde glue all to exist to need the problem improved further, and as: to problems such as easily foaming in existing bonding wood materials process, not resistance to bubble, snappiness are poor.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
The object of the present invention is to provide wooden hide glue of a kind of subsides and preparation method thereof, the wooden hide glue of described subsides is applicable to the laminating of wooden skin and PLASTIC LAMINATED, also may be used for the laminating of wooden skin and calcium silicate board, clamping plate, high-density plate, with solve in above-mentioned prior art paste wooden hide glue not environmentally and laminating effect need the technical problem improved further.
Technical scheme of the present invention is as follows:
The wooden hide glue of a kind of subsides, wherein, the wooden hide glue of described subsides, according to weight parts, comprises following raw material composition:
Vinyl acetate 140 ~ 250 parts, tertiary ethylene carbonate 60 ~ 100 parts, n-BMA 20 ~ 70 parts, 3 ~ 10 parts, vinylformic acid, methacrylic acid 3 ~ 10 parts, environment-friendly plasticizer 50 ~ 100 parts, polyvinyl alcohol 18 ~ 50 parts, extraordinary cross-linking monomer 4 ~ 10 parts, environmental protection response type anionic emulsifier 3 ~ 5 parts, environmental protection response type nonionic emulsifying agent 2 ~ 5 parts and deionized water 430-570 part; Also comprise initiator in the wooden hide glue of described subsides, the consumption of initiator accounts for 0.1 ~ 0.2% of vinyl acetate, tertiary ethylene carbonate, butyl acrylate and vinylformic acid total mass.
Described subsides wood hide glue, wherein, described extraordinary cross-linking monomer is selected from glycidyl methacrylate, diacetone-acryloamide(DAA), isobornyl methacrylate, glycidyl allyl ether, Ethylene glycol dimethacrylate, Hydroxyethyl acrylate, methacrylate.
Described subsides wood hide glue, wherein, described environment-friendly plasticizer is selected from epoxide modified soybean oil, tributyl citrate, tributyl acetylcitrate, dibutyl maleinate, dibutyl itaconate.
Described subsides wood hide glue, wherein, described environmental protection response type anionic emulsifier is selected from sodium vinyl sulfonate, sodium allyl sulfonate, allyloxy alkyl alcohol ether sulphonate series; Described allyloxy alkyl alcohol ether sulphonate series is Japanese Ai Dike anionic reactive type emulsifying agent SR-10, A-10, SR-3025.
Described subsides wood hide glue, wherein, described environment-friendly type nonionic emulsifying agent is selected from allyloxy alcohol ether series, and described allyloxy alcohol ether series is Japanese Ai Dike non-ionic reaction emulsifying agent ER-10, ER-20, ER30.
Described subsides wood hide glue, wherein, described initiator is massfraction is the ammonium persulphate of 1 ~ 5% or the aqueous solution of 1 ~ 5% Potassium Persulphate.
Described subsides wood hide glue, wherein, in the raw material composition of the wooden hide glue of described subsides, counts by weight, also comprises sanitas 2-4 part; Described sanitas is Kathon CG.
A preparation method for the wooden hide glue of subsides as above, wherein, comprises the steps:
In reactor, put into deionized water, add polyvinyl alcohol rising temperature for dissolving, be cooled to 75 ~ 85 DEG C;
Even by putting into dropping in-tank mixing after reaction monomers vinyl acetate, tertiary ethylene carbonate, n-BMA, vinylformic acid, methacrylic acid metering;
Extraordinary cross-linking monomer, environmental protection response type anionic emulsifier, environmental protection response type nonionic emulsifying agent is added in reactor;
Drip mix monomer, drip the initiator of total monomer weight 0.1 ~ 0.2% simultaneously, and be added dropwise to complete in 3 ~ 5 hours;
85 ~ 95 DEG C of slaking 40 ~ 60min are warming up to after being added dropwise to complete;
Be cooled to 35 ~ 45 DEG C, add environment-friendly plasticizer and mix rear discharging and filter and package.
The present invention is by the optimization of existing formula and improvement, the present invention is made to paste wooden hide glue finished product not containing formaldehyde, heavy metal, halogenide etc., meet " in indoor decorating and refurnishing materials tackiness agent limits of harmful substances " GB18583-2008 standard that country promulgates, nontoxic free from extraneous odour, safe and reliable; And have lasting internal plasticization and snappiness, bonding force is strong, water-fast, resistance to acids and bases is good, not easily aging, wet tenacity is high, has fabulous flame retardant resistance, does not trickle at 120 DEG C above freezing, and subzero 50 DEG C are not chapped, easy to use, be applicable to mechanical gluing and manual gluing.After the laminating of PLASTIC LAMINATED and wooden skin, wooden skin non yellowing, antiageing effect is good, has snappiness, and resistance to bending is not come unglued, the good characteristic that 45 DEG C of bubbles do not come unglued for 7 days.
Embodiment
For making object of the present invention, technical scheme and advantage clearly, clearly, below by way of detailed description and give an actual example that the present invention is described in more detail.
The invention provides the wooden hide glue of a kind of subsides, by adjustment and optimization of C/C composites, making the present invention paste wooden hide glue is water-based, environmental protection, and not containing organic solvent, benzene class, formaldehyde content meet the GB18583-2008 compulsory standard that country promulgates, and excellent effect of fitting.
Particularly, the wooden hide glue of described subsides, according to weight parts, comprises following raw material composition:
Vinyl acetate 140 ~ 250 parts, tertiary ethylene carbonate 60 ~ 100 parts, n-BMA 20 ~ 70 parts, 3 ~ 10 parts, vinylformic acid, methacrylic acid 3 ~ 10 parts, environment-friendly plasticizer 50 ~ 100 parts, polyvinyl alcohol 18 ~ 50 parts, extraordinary cross-linking monomer 4 ~ 10 parts, environmental protection response type anionic emulsifier 3 ~ 5 parts, environmental protection response type nonionic emulsifying agent 2 ~ 5 parts and deionized water 430-570 part; Also comprise initiator in the wooden hide glue of described subsides, the consumption of initiator accounts for 0.1 ~ 0.2% of monomer total mass.
Wherein, described extraordinary cross-linking monomer can be selected from glycidyl methacrylate, diacetone-acryloamide(DAA), isobornyl methacrylate, glycidyl allyl ether, Ethylene glycol dimethacrylate, Hydroxyethyl acrylate, methacrylate.
Described environment-friendly plasticizer can be selected from epoxide modified soybean oil, tributyl citrate, tributyl acetylcitrate, dibutyl maleinate, dibutyl itaconate.
Described environmental protection response type anionic emulsifier can be selected from sodium vinyl sulfonate, sodium allyl sulfonate, allyloxy alkyl alcohol ether sulphonate series.Described allyloxy alkyl alcohol ether sulphonate series can be Japanese Ai Dike anionic reactive type emulsifying agent SR-10, A-10, SR-3025.
Described environment-friendly type nonionic emulsifying agent can be selected from allyloxy alcohol ether series, and described allyloxy alcohol ether series can be Japanese Ai Dike non-ionic reaction emulsifying agent ER-10, ER-20, ER30.
Described initiator is massfraction is the ammonium persulphate of 1 ~ 5% or the aqueous solution of 1 ~ 5% Potassium Persulphate.
The wooden hide glue of subsides provided by the present invention have employed multiple unit resin and enters copolymerization, obtain multi-copolymerization emulsion, by optimizing and improved formulations, make it have superpower resistant to hydrolysis ability and weather changing capability (high temperature not desaturation, low temperature do not chap), there is again lasting internal plasticization performance, the functions such as bond strength is extremely strong.The phenomenon occurring because of the impact of soaked, high/low temperature, thump bubbling, coming unglued would not be subject to the sheet material of this glue.
Further, in the wooden hide glue of described subsides, sanitas 2-4 part can also be comprised.Described sanitas can be Kathon CG, and can selectivity add as required in described subsides wood hide glue, its Main Function optimizes effective life.
Also provide described subsides wooden hide glue preparation method in the present invention, comprise the steps:
(1) in reactor, put into deionized water, add polyvinyl alcohol rising temperature for dissolving, be cooled to 75 ~ 85 DEG C;
(2) even by putting into dropping in-tank mixing after reaction monomers vinyl acetate, tertiary ethylene carbonate, n-BMA, vinylformic acid, methacrylic acid metering;
(3) in reactor, add extraordinary cross-linking monomer, environmental protection response type anionic emulsifier, environmental protection response type nonionic emulsifying agent;
(4) drip mix monomer, drip the initiator of total monomer weight 0.1 ~ 0.2% simultaneously, and be added dropwise to complete in 3 ~ 5 hours;
(5) 85 ~ 95 DEG C of slaking 40 ~ 60min are warming up to after being added dropwise to complete;
(6) be cooled to 35 ~ 45 DEG C, add environment-friendly plasticizer and sanitas and mix rear discharging and filter and package.
The subsides wood hide glue provided in the present invention, have lasting internal plasticization and snappiness, bonding force is strong, water-fast, resistance to acids and bases is good, not easily aging, wet tenacity is high, has fabulous flame retardant resistance, does not trickle at 120 DEG C above freezing; Subzero 50 DEG C are not chapped, and nontoxic free from extraneous odour is safe and reliable, easy to use.Be not only applicable to the laminating of PLASTIC LAMINATED and wooden skin, also can be suitable for various sheet material (fiberboard, clamping plate, hard board) and paste with the wooden skin of more than 0.3mm, be applicable to mechanical gluing and manual gluing.
And compared with urea-formaldehyde glue, aqueous plaster wood hide glue of the present invention has the following advantages: (1) urea-formaldehyde glue needs solidifying agent to mix before using, and need to use as early as possible, and the present invention pastes wooden hide glue without the need to adding solidifying agent, can directly use; (2) when using urea-formaldehyde glue to paste wooden skin and sheet material, urea-formaldehyde glue can ooze out from the wooden eye of wooden skin, and wooden eye can be blocked, after veneer surface japanning, after veneer surface causes japanning because of the urea-formaldehyde glue oozed out, veneer surface is uneven, and adopt the present invention to paste wooden hide glue can not to block wooden eye, colored paint can infiltrate wooden eye, colouring evenly nature; (3) because urea-formaldehyde glue can block wooden eye, therefore, in hot pressing, air residual between wooden skin and sheet material can not appear from wooden eye, occurs foaming phenomena, and the present invention pastes wooden hide glue residual air in hot pressing can shed from wooden eye, stop foaming phenomena; (4) owing to also having organic volatile material in urea-formaldehyde glue, in hot pressing, produce irritant gas, to human respiratory tract cause stimulate and to environment, and the present invention pastes wooden hide glue owing to being water-base cement, not containing organic volatile matter, even if also can not produce unpleasant in hot pressing or stimulate promoting the circulation of qi body.
Below in conjunction with embodiment, the invention will be further described.
Embodiment 1
Subsides wood hide glue in the present embodiment, according to weight parts, comprises following raw material composition:
Vinyl acetate 143 parts, tertiary ethylene carbonate 61 parts, n-BMA 20 parts, 3 parts, vinylformic acid, methacrylic acid 3.2 parts, environment-friendly plasticizer 52 parts, polyvinyl alcohol 18 parts, tributyl citrate 4 parts, sodium vinyl sulfonate 3.5 parts, Japanese Ai Dike non-ionic reaction emulsifying agent ER-102 part, deionized water 430 parts and sanitas 2 parts.
Its preparation method, comprises the steps:
(1) in reactor, put into deionized water, add polyvinyl alcohol rising temperature for dissolving, be cooled to 75 ~ 85 DEG C;
(2) even by putting into dropping in-tank mixing after reaction monomers vinyl acetate, tertiary ethylene carbonate, n-BMA, vinylformic acid, methacrylic acid metering;
(3) in reactor, add extraordinary cross-linking monomer, environmental protection response type anionic emulsifier, environmental protection response type nonionic emulsifying agent;
(4) drip mix monomer, the initiator massfraction simultaneously dripping total monomer weight 0.1% is the ammonium persulfate aqueous solution of 1%, and is added dropwise to complete in 3 ~ 5 hours;
(5) 85 ~ 95 DEG C of slaking 40 ~ 60min are warming up to after being added dropwise to complete;
(6) be cooled to 35 ~ 45 DEG C, add environment-friendly plasticizer and sanitas and mix rear discharging and filter and package.
The present embodiment gained is pasted wooden hide glue and carries out Performance Detection, detected result is as shown in table 1.Sanding is carried out to fire shield surface, will paste wooden hide glue equably applying glue in fire shield surface, every square metre of Amount of spread (machine painting) 80 ~ 120 grams, fit with by wooden skin, use pressure time is: cold pressing 1.5 ~ 2 hours, hot pressing 3-5 minute, and pressure is 3-5kg/cm
2, check that veneer surface does not bubble (not giving out irritant gas in hot pressing).After 24 hours, cross varnish and 80 DEG C of ultra red ray dryings, check that veneer surface is not bubbled.After making product, the PLASTIC LAMINATED posted to be soaked in 45 DEG C of water 7 days, not to ftracture non-foaming indeformable, can also normally use after oven dry.Under the PLASTIC LAMINATED posted is placed in 750W UV-lamp, Continuous irradiation 72h has no catabiosis.It is 120-160 ° that the PLASTIC LAMINATED posted is bent to angle, does not come unglued.
Table 1 embodiment 1 pastes the performance index of wooden hide glue
Embodiment 2
Subsides wood hide glue in the present embodiment, according to weight parts, comprises following raw material composition:
Vinyl acetate 200 parts, tertiary ethylene carbonate 85 parts, n-BMA 46 parts, 6.5 parts, vinylformic acid, methacrylic acid 5.8 parts, environment-friendly plasticizer 82 parts, polyvinyl alcohol 32 parts, tributyl acetylcitrate 7.9 parts, sodium allyl sulfonate 4 parts, Japanese Ai Dike non-ionic reaction emulsifying agent ER-204 part and deionized water 530 parts.
Its preparation method, comprises the steps:
(1) in reactor, put into deionized water, add polyvinyl alcohol rising temperature for dissolving, be cooled to 75 ~ 85 DEG C;
(2) even by putting into dropping in-tank mixing after reaction monomers vinyl acetate, tertiary ethylene carbonate, n-BMA, vinylformic acid, methacrylic acid metering;
(3) in reactor, add extraordinary cross-linking monomer, environmental protection response type anionic emulsifier, environmental protection response type nonionic emulsifying agent;
(4) drip mix monomer, the initiator massfraction simultaneously dripping total monomer weight 0.2% is the persulfate aqueous solution of 3%, and is added dropwise to complete in 3 ~ 5 hours;
(5) 85 ~ 95 DEG C of slaking 40 ~ 60min are warming up to after being added dropwise to complete;
(6) be cooled to 35 ~ 45 DEG C, add environment-friendly plasticizer and mix rear discharging and filter and package.
The present embodiment gained is pasted wooden hide glue and carries out Performance Detection, detected result is as shown in table 2.Sanding is carried out to fire shield surface, will paste wooden hide glue equably applying glue in fire shield surface, every square metre of Amount of spread (machine painting) 80 ~ 120 grams, namely fit with by wooden skin, use pressure time is: cold pressing 1.5 ~ 2 hours, hot pressing 3-5 minute, and pressure is 3-5kg/cm
2, check that veneer surface does not have bubble (not giving out irritant gas in hot pressing).After 24 hours, cross varnish and 80 DEG C of ultra red ray dryings, check that veneer surface is not bubbled.After making product, the PLASTIC LAMINATED posted to be soaked in 45 DEG C of water 7 days, not to ftracture non-foaming indeformable, can also normally use after oven dry.Under the PLASTIC LAMINATED posted is placed in 750W UV-lamp, Continuous irradiation 72h has no catabiosis.The PLASTIC LAMINATED posted is bent to angle to be 120-160 ° and not come unglued.
Table 2 embodiment 2 pastes the performance index of wooden hide glue
Embodiment 3
Subsides wood hide glue in the present embodiment, according to weight parts, comprises following raw material composition:
Vinyl acetate 250 parts, tertiary ethylene carbonate 98 parts, n-BMA 70 parts, 9.8 parts, vinylformic acid, methacrylic acid 10 parts, environment-friendly plasticizer 100 parts, polyvinyl alcohol 49 parts, dibutyl maleinate 10 parts, Japanese Ai Dike anionic reactive type emulsifying agent SR-105 part, Japanese Ai Dike non-ionic reaction emulsifying agent ER305 part and deionized water 570 parts and sanitas 2.5 parts.
Its preparation method, comprises the steps:
(1) in reactor, put into deionized water, add polyvinyl alcohol rising temperature for dissolving, be cooled to 75 ~ 85 DEG C;
(2) even by putting into dropping in-tank mixing after reaction monomers vinyl acetate, tertiary ethylene carbonate, n-BMA, vinylformic acid, methacrylic acid metering;
(3) in reactor, add extraordinary cross-linking monomer, environmental protection response type anionic emulsifier, environmental protection response type nonionic emulsifying agent;
(4) drip mix monomer, the initiator massfraction simultaneously dripping total monomer weight 0.16% is the persulfate aqueous solution of 2%, and is added dropwise to complete in 3 ~ 5 hours;
(5) 85 ~ 95 DEG C of slaking 40 ~ 60min are warming up to after being added dropwise to complete;
(6) be cooled to 35 ~ 45 DEG C, add environment-friendly plasticizer and sanitas and mix rear discharging and filter and package.
The present embodiment gained is pasted wooden hide glue and carries out Performance Detection, detected result is as shown in table 3.Sanding is carried out to fire shield surface, will paste wooden hide glue equably applying glue in fire shield surface, every square metre of Amount of spread (machine painting) 80 ~ 120 grams, namely fit with by wooden skin, use pressure time is: cold pressing 1.5 ~ 2 hours, hot pressing 3-5 minute, and pressure is 3-5kg/cm
2, check that veneer surface does not have bubble (not giving out irritant gas in hot pressing).After 24 hours, cross varnish and 80 DEG C of ultra red ray dryings, check that veneer surface is not bubbled.After making product, the PLASTIC LAMINATED posted to be soaked in 45 DEG C of water 7 days, not to ftracture non-foaming indeformable, can also normally use after oven dry.Under the PLASTIC LAMINATED posted is placed in 750W UV-lamp, Continuous irradiation 72h has no catabiosis.The PLASTIC LAMINATED posted is bent to angle to be 120-160 ° and not come unglued.
Table 3 embodiment 3 pastes the performance index of wooden hide glue
In sum, the present invention compared with prior art, its advantage is: (1) materials environmental protection, and finished product, not containing formaldehyde, heavy metal, halogenide etc., meets " in indoor decorating and refurnishing materials tackiness agent limits of harmful substances " GB18583-2008 standard that country promulgates; (2) product is water-based, is not afraid of water logging after solidifying drying; (3) for after the laminating of PLASTIC LAMINATED and wooden skin, wooden skin non yellowing, antiageing effect is good, has snappiness, and resistance to bending is not come unglued, and 45 DEG C of bubbles do not come unglued for 7 days; (3) cost is low.
Should be understood that, application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to claims of the present invention.
Claims (8)
1. paste a wooden hide glue, it is characterized in that, the wooden hide glue of described subsides, according to weight parts, comprise following raw material composition:
Vinyl acetate 140 ~ 250 parts, tertiary ethylene carbonate 60 ~ 100 parts, n-BMA 20 ~ 70 parts, 3 ~ 10 parts, vinylformic acid, methacrylic acid 3 ~ 10 parts, environment-friendly plasticizer 50 ~ 100 parts, polyvinyl alcohol 18 ~ 50 parts, extraordinary cross-linking monomer 4 ~ 10 parts, environmental protection response type anionic emulsifier 3 ~ 5 parts, environmental protection response type nonionic emulsifying agent 2 ~ 5 parts and deionized water 430-570 part; Also comprise initiator in the wooden hide glue of described subsides, the consumption of initiator accounts for 0.1 ~ 0.2% of vinyl acetate, tertiary ethylene carbonate, butyl acrylate and vinylformic acid total mass.
2. the wooden hide glue of subsides according to claim 1, it is characterized in that, described extraordinary cross-linking monomer is selected from glycidyl methacrylate, diacetone-acryloamide(DAA), isobornyl methacrylate, glycidyl allyl ether, Ethylene glycol dimethacrylate, Hydroxyethyl acrylate, methacrylate.
3. the wooden hide glue of subsides according to claim 1, is characterized in that, described environment-friendly plasticizer is selected from epoxide modified soybean oil, tributyl citrate, tributyl acetylcitrate, dibutyl maleinate, dibutyl itaconate.
4. the wooden hide glue of subsides according to claim 1, is characterized in that, described environmental protection response type anionic emulsifier is selected from sodium vinyl sulfonate, sodium allyl sulfonate, allyloxy alkyl alcohol ether sulphonate series; Described allyloxy alkyl alcohol ether sulphonate series is Japanese Ai Dike anionic reactive type emulsifying agent SR-10, A-10, SR-3025.
5. the wooden hide glue of subsides according to claim 1, is characterized in that, described environment-friendly type nonionic emulsifying agent is selected from allyloxy alcohol ether series, and described allyloxy alcohol ether series is Japanese Ai Dike non-ionic reaction emulsifying agent ER-10, ER-20, ER30.
6. the wooden hide glue of subsides according to claim 1, is characterized in that, described initiator is massfraction is the ammonium persulphate of 1 ~ 5% or the aqueous solution of 1 ~ 5% Potassium Persulphate.
7. the wooden hide glue of subsides according to claim 1, is characterized in that, in the raw material composition of the wooden hide glue of described subsides, counts by weight, also comprises sanitas 2-4 part; Described sanitas is Kathon CG.
8. a preparation method for the subsides wood hide glue as described in as arbitrary in claim 1 ~ 8, is characterized in that, comprise the steps:
In reactor, put into deionized water, add polyvinyl alcohol rising temperature for dissolving, be cooled to 75 ~ 85 DEG C;
Even by putting into dropping in-tank mixing after reaction monomers vinyl acetate, tertiary ethylene carbonate, n-BMA, vinylformic acid, methacrylic acid metering;
Extraordinary cross-linking monomer, environmental protection response type anionic emulsifier, environmental protection response type nonionic emulsifying agent is added in reactor;
Drip mix monomer, drip the initiator of total monomer weight 0.1 ~ 0.2% simultaneously, and be added dropwise to complete in 3 ~ 5 hours;
85 ~ 95 DEG C of slaking 40 ~ 60min are warming up to after being added dropwise to complete;
Be cooled to 35 ~ 45 DEG C, add environment-friendly plasticizer and mix rear discharging and filter and package.
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