CN106046215A - Preparation method of temporarily water-soluble high-viscosity polyvinyl butyral resin - Google Patents
Preparation method of temporarily water-soluble high-viscosity polyvinyl butyral resin Download PDFInfo
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- CN106046215A CN106046215A CN201610477439.2A CN201610477439A CN106046215A CN 106046215 A CN106046215 A CN 106046215A CN 201610477439 A CN201610477439 A CN 201610477439A CN 106046215 A CN106046215 A CN 106046215A
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- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F8/00—Chemical modification by after-treatment
- C08F8/28—Condensation with aldehydes or ketones
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Abstract
The invention discloses a preparation method of temporarily water-soluble high-viscosity polyvinyl butyral resin, belonging to the technical field of polyvinyl butyral resin preparation. The preparation method comprises the following steps: sequentially dropwise adding a sodium hydroxide solution and absolute ethyl alcohol into mixed liquid; heating and preserving heat, and adding polyacrylic acid to obtain a hydroxylated solution; regulating the pH value and performing rotary evaporation to obtain hydroxylated polyvinyl alcohol gel liquid in a beaker; further dropwise adding n-butanal and diethylaminoethanol; cooling and regulating the pH value again; and drying the centrifugate to obtain the temporarily water-soluble high-viscosity polyvinyl butyral resin. Instances prove that the technology of the invention is simple and convenient; any surfactant such as emulsifier is not added in the preparation process, and the obtained product does not contain any residue and is not caked easily; and moreover, the viscosity of the polyvinyl butyral resin is improved while the cost is reduced, the viscosity is as high as 800-85mPa.s, the weight-average molecular weight is 380000-400000, and the polyvinyl butyral resin can be produced and applied in a large scale.
Description
Technical field
The invention discloses the preparation method of a kind of temporarily water-soluble high-viscosity polyvinyl butyral resin, belong to polyethylene
Polyvinyl butyral resin preparing technical field.
Background technology
Polyvinyl butyral resin (Polyvinyl butyral is called for short PVB) resin, because butyral group, hydroxy radical content etc. refer to
Target is different, can be widely applied to paint, adhesive, ink, modifier, photovoltaic encapsulation material, safety glass intermediate coat etc.
Field.
Owing to polyvinyl butyral resin has the superioritys such as the higher transparency, tolerance to cold, impact resistance, uvioresistant
Can, there is good cohesive force with metal, glass, timber, pottery, fibre etc., therefore polyvinyl butyral resin is permissible
For making the sandwich material of safety glass, the safety glass transparency of preparation is good, and impact strength is big, is widely used in aviation and vapour
Car field.Coatings industry is used for prepare anticorrosive coating, there is the strongest antirust ability；Adhesive force, water-fast can also be prepared
Metallic base coat that property is good and cold-proof paint.For manufacturing the thin film marble paper that decorative pattern is bright-coloured in ceramic industry, Ceramic flower can be replaced
Paper.Resin Industry replaces the compression molding material of the non-ferrous metal such as steel, lead for manufacturing；Multiple binding agent can be made into, be widely used in timber,
Pottery, metal, plastics, leather, laminated material etc. bonding；Textile industry is used for manufacturing fabric-treating agent and spool.Food work
Industry is used for manufacturing non-toxic packaging materials；Paper industry is used for manufacturing paper treating agent.Additionally, can be additionally used in manufacture anti-piping compound, hard
Very agent and other waterproof materials.Wide market.
The synthesis technique of PVB resin can be divided into homogeneous method and multi-phases process two kinds at present.
(1) homogeneous method generally as starting material with polyvinyl acetate (being called for short PVAc), is dissolved in mixed solvent, adds
Entering hydrochloric acid and make PVAc alcoholysis, the PVA that alcoholysis generates carries out acetalation with hutanal under hydrochloric acid catalysis, along with entering of reaction
OK, the PVB of generation is dissolved in mixed solvent, then obtains finished product through precipitation, washing, drying and other steps.
(2) multi-phases process is with PVA as starting material, is first dissolved in the water by PVA, adds hutanal and acid catalyst enters
Row reaction, the PVB powder end gradually formed along with the carrying out of reaction separates out from water, more scrubbed, drying and other steps obtains finished product.
Homogeneous method causes product owing to easily carrying impurity secretly in product and the isolated and purified difficulty of solvent, solvent recovery complexity, PVB granule
Quality stability difference etc. reason and gradually abandoned.Multi-phases process is due to product post processing high-purity PVB resin easy, available
And be gradually widely adopted.
Polyvinyl butyral resin can be divided into high viscosity and low viscosity two kinds according to molecular weight.High viscosity polyvinyl alcohol contracts
Butyral resin is typically used as safety glass interlayers film.And domestic polyvinyl alcohol butyral resin is low viscous mostly, it is impossible to full
The requirement of foot safety glass interlayers film.Along with China's economic development, automobile and skyscraper are continuously increased, high viscosity polyvinyl alcohol
Butyral resin and intermediate coat consumption thereof increase therewith, this resin of an urgent demand and the production domesticization of thin film.
At present, the viscosity of the polyvinyl butyral resin of energy industrialized great production is in 15～800mPa.s (10% weight ratios
Rotary viscosity in 95% ethanol solution), its weight average molecular weight is at 3～350,000 (SEC).Viscosity is more than 800mPa.s(10% solution
Weight ratio, solution be ethyl acetate/methanol volume ratio be 1/3), the weight average molecular weight PVB more than 350,000 be referred to as hyperviscosity surpass
High molecular PVB, the PVB of this specification is not carried out industrialized great production.
Additionally in the middle of each technical process of the conventional synthesis system of polyvinyl butyral resin. topmost problem is how to control it
Luming because of self-adhesive, affect last handling process, current each main manufacturer portion is by adding the surface activitys such as emulsifying agent
Liu's agent controls PVB bonding, but this just brings the removal difficulty of another problem, i.e. emulsifying agent, needs to expend substantial amounts of water, becomes
This height.Emulsifying agent is removed not thorough simultaneously, the PVB film intermediate coat bonding force with glass surface will be caused to be greatly reduced, and makes
Become the transparency reduction of laminated safety glass, color and other physical properties also can change.
Summary of the invention
The technical problem that present invention mainly solves: preparing the process of polyvinyl butyral resin for current traditional method
In, easily lump because of self-adhesive, affect viscosity, and during post processing, being usually added into the surfactants such as emulsifying agent controls, but
Difficulty removed by emulsifying agent, needs to expend substantial amounts of water, and cost is high, does not thoroughly then cause in polyvinyl butyral film as removed
Between the present situation that is greatly reduced of the bonding force of film and glass surface, it is provided that a kind of by deionized water, POLYPROPYLENE GLYCOL, detergent alkylate
Sodium sulfonate, hydrochloric acid solution and hydroxy benzaldehyde mixing, dropping sodium hydroxide solution and dehydrated alcohol the most successively, heating
After insulation, then it is added thereto to polyacrylic acid, obtains hydroxylating solution, steamed by rotation after regulation pH value afterwards, prepare hydroxylating and gather
Vinyl alcohol coagulant liquid, in beaker, continues dropping hutanal and diethylaminoethanol, again regulates pH value after cooling, and by inciting somebody to action
Centrifugal thing is dried, thus obtains the preparation method of temporarily water-soluble high-viscosity polyvinyl butyral resin.The method uniqueness is novel,
Simple process, during preparation, by the raw material that easily lumps is carried out hydroxylating process, can be dispersed in water, effectively
Improve dispersibility during polymerizable raw material, it is not necessary to add the surfactants such as any emulsifying agent, without any table in prepared product
Face activating agent residual, and prevented from caking, add polyvinyl butyral resin viscosity so that viscosity while reducing cost
Up to 800～85mPa.s, weight average molecular weight, 38～400,000, can be widely used for photovoltaic industry, automobile industry and building industry
In.
In order to solve above-mentioned technical problem, the technical solution adopted in the present invention is:
(1) count by weight, weigh 45～65 parts of deionized waters, 35～40 parts of polyvinyl alcohol, 5～10 parts of dodecyls respectively
Benzene sulfonic acid sodium salt, 10～15 parts of 0.8mol/L hydrochloric acid solutions and 5～10 parts of hydroxy benzaldehydes are placed in beaker, stirring mixing juxtaposition
At 65～80 DEG C, heating in water bath 1～2h, is prepared into mixed solution；
(2) mixed solution weighing 25～30mL above-mentioned preparations is placed in there-necked flask, the 1mol/ to its dropping 2.5～3.0mL
L sodium hydroxide solution, controlling time for adding is 10～15min, and after being added dropwise to complete, stirring mixing also continues to add 10～15mL
Dehydrated alcohol, in there-necked flask, is subsequently heated to boiling, Heat preservation 1～2h；
(3) after Heat preservation terminates, stop heating and standing is cooled to room temperature, there-necked flask is dripped 10～12mL polypropylene
Acid, controlling time for adding is 10～15min, waits to be added dropwise to complete and is prepared into hydroxylating solution, continues stirring mixing and also uses 1mol/L
Sodium hydrate regulator solution pH to 7.5, rotary evaporation hydroxylating solution is to the 1/8 of original volume subsequently, is prepared into the poly-second of hydroxylating
Enol coagulant liquid；
(4) the hydroxylating polyvinyl alcohol gel liquid weighing 45～50mL above-mentioned preparations is placed in there-necked flask, at 10～15 DEG C,
Dripping 20～25mL hutanals and 1～2mL diethylaminoethanol in there-necked flask, controlling time for adding is 10～15min, treats
After being added dropwise to complete, stirring mixing is placed in heating in water bath 3～5h at 35～45 DEG C；
(5) to be heated complete after, stop heating and be also cooled to room temperature, there-necked flask is dripped 1mol/L sodium hydroxide solution, adjust
Joint pH to 10.5～11.0, after being added dropwise to complete, is placed on centrifugation 10～15min under 3500～4000r/min, collects
Lower sediment is also vacuum dried 6～8h, can be prepared into a kind of high-viscosity polyvinyl butyral resin.
The application process of the present invention is: add phenolic resin in the polyvinyl butyral resin present invention prepared, wherein
Addition is addition 200～300g phenolic resin in 20～30g polyvinyl butyral resins, at temperature is 90～105 DEG C
It is sufficiently mixed uniformly, insulated and stirred 1～2h, during use, there is elastic and high bonding force, can uniform application metallic article
Surface, for the bonding of metallic article, instead of traditional method coupling metallic article rivet, also reduces 65% simultaneously
The weight of above goods, can be widely applied to packaging, metal and the stickup of plastic sheeting, can be in large-scale application, before market
Scape is wide.
The invention has the beneficial effects as follows:
(1) present invention process is simple, and method uniqueness is novel, during preparation, it is not necessary to add the tables such as any emulsifying agent
Face activating agent, remains without any surfactant in prepared product, and prevented from caking；
(2) present invention is easy and simple to handle, adds polyvinyl butyral resin viscosity while reducing production cost so that viscous
Degree up to 800～85mPa.s, weight average molecular weight is 38～400,000；
(3) during the polyvinyl butyral resin that the present invention prepares can be widely used for photovoltaic industry, automobile industry and building industry,
Wide market.
Detailed description of the invention
Count the most by weight, weigh respectively 45～65 parts of deionized waters, 35～40 parts of polyvinyl alcohol, 5～10 part ten
Dialkyl benzene sulfonic acids sodium, 10～15 parts of 0.8mol/L hydrochloric acid solutions and 5～10 parts of hydroxy benzaldehydes are placed in beaker, and stirring is mixed
Merge and be placed in heating in water bath 1～2h at 65～80 DEG C, be prepared into mixed solution；Then the mixing of 25～30mL above-mentioned preparations is weighed
Solution is placed in there-necked flask, to its dropping 2.5～3.0mL 1mol/L sodium hydroxide solution, control time for adding be 10～
15min, after being added dropwise to complete, stirring mixing also continues to add 10～15mL dehydrated alcohol in there-necked flask, be subsequently heated to
Boiling, Heat preservation 1～2h；After Heat preservation terminates, stop heating and standing is cooled to room temperature, there-necked flask is dripped 10
～12mL polyacrylic acid, controlling time for adding is 10～15min, waits to be added dropwise to complete and is prepared into hydroxylating solution, continues stirring mixed
Merging and use 1mol/L sodium hydrate regulator solution pH to 7.5, rotary evaporation hydroxylating solution is to the 1/8 of original volume, preparation subsequently
Obtain hydroxylating polyvinyl alcohol gel liquid；Next the hydroxylating polyvinyl alcohol gel liquid weighing 45～50mL above-mentioned preparations is placed in three
In mouth flask, at 10～15 DEG C, in there-necked flask, drip 20～25mL hutanals and 1～2mL diethylaminoethanol, control
Time for adding is 10～15min, and after being added dropwise to complete, stirring mixing is placed in heating in water bath 3～5h at 35～45 DEG C；Finally treat
After having heated, stop heating and be cooled to room temperature, there-necked flask is dripped 1mol/L sodium hydroxide solution, regulating pH to 10.5
～11.0, after being added dropwise to complete, it is placed on centrifugation 10～15min under 3500～4000r/min, collects lower sediment also
Vacuum drying 6～8h, can be prepared into a kind of high-viscosity polyvinyl butyral resin.
Example 1
Count the most by weight, weigh respectively 45 parts of deionized waters, 35 parts of polyvinyl alcohol, 5 parts of dodecylbenzene sodium sulfonate, 10
Part 0.8mol/L hydrochloric acid solution and 5 parts of hydroxy benzaldehydes are placed in beaker, and stirring mixing is placed in heating in water bath 1h at 65 DEG C,
It is prepared into mixed solution；Then the mixed solution weighing the above-mentioned preparation of 25mL is placed in there-necked flask, to its dropping 2.5mL's
1mol/L sodium hydroxide solution, control time for adding is 10min, after being added dropwise to complete, stirring mixing and continue add 10mL without
Water-ethanol, in there-necked flask, is subsequently heated to boiling, Heat preservation 1h；After Heat preservation terminates, stop heating and stand
Being cooled to room temperature, there-necked flask is dripped 10mL polyacrylic acid, control time for adding is 10min, waits to be added dropwise to complete and is prepared into hydroxyl
Base solution, continues stirring mixing and with 1mol/L sodium hydrate regulator solution pH to 7.5, subsequently rotary evaporation hydroxylating solution
To the 1/8 of original volume, it is prepared into hydroxylating polyvinyl alcohol gel liquid；Next the hydroxylating polyethylene of the above-mentioned preparation of 45mL is weighed
Alcogel liquid is placed in there-necked flask, at 10 DEG C, drips 20mL hutanal and 1mL diethylaminoethanol in there-necked flask,
Control time for adding is 10min, and after being added dropwise to complete, stirring mixing is placed in heating in water bath 3h at 35 DEG C；Last to be heated complete
Cheng Hou, stops heating and is cooled to room temperature, and there-necked flask is dripped 1mol/L sodium hydroxide solution, regulates pH to 10.5, waits to drip
After having added, it is placed on centrifugation 10min under 3500r/min, collects lower sediment and be vacuum dried 6h, can be prepared into
A kind of high-viscosity polyvinyl butyral resin.
This example operation is simple, adds phenolic resin, wherein in the polyvinyl butyral resin present invention prepared
Addition is addition 200g phenolic resin in 20g polyvinyl butyral resin, is sufficiently mixed uniformly, protects at temperature is 90 DEG C
Temperature stirring 1h, during use, there is elastic and high bonding force, can uniform application surface of metal product, for metallic article
Bonding, instead of traditional method coupling metallic article rivet, also reduces the weight of 65% goods simultaneously, can be extensive
For packing, metal and the stickup of plastic sheeting, can be in large-scale application, wide market.
Example 2
Count the most by weight, weigh respectively 55 parts of deionized waters, 40 parts of polyvinyl alcohol, 8 parts of dodecylbenzene sodium sulfonate, 13
Part 0.8mol/L hydrochloric acid solution and 8 parts of hydroxy benzaldehydes are placed in beaker, and stirring mixing is placed in heating in water bath at 75 DEG C
1.5h, is prepared into mixed solution；Then the mixed solution weighing the above-mentioned preparation of 28mL is placed in there-necked flask, drips it
The 1mol/L sodium hydroxide solution of 2.8mL, control time for adding is 13min, and after being added dropwise to complete, stirring mixing also continues to add
13mL dehydrated alcohol, in there-necked flask, is subsequently heated to boiling, Heat preservation 1.5h；After Heat preservation terminates, stop adding
Heat standing are cooled to room temperature, and there-necked flask is dripped 11mL polyacrylic acid, and control time for adding is 13min, waits to be added dropwise to complete
It is prepared into hydroxylating solution, continues stirring mixing and with 1mol/L sodium hydrate regulator solution pH to 7.5, rotary evaporation hydroxyl subsequently
Base solution, to the 1/8 of original volume, is prepared into hydroxylating polyvinyl alcohol gel liquid；Next the hydroxyl of the above-mentioned preparation of 48mL is weighed
Change polyvinyl alcohol gel liquid to be placed in there-necked flask, at 13 DEG C, in there-necked flask, drip 23mL hutanal and 1.5mL diethyl
Ethylaminoethanol, control time for adding is 13min, and after being added dropwise to complete, stirring mixing is placed in heating in water bath 4h at 40 DEG C；Finally
To be heated complete after, stop heating and be also cooled to room temperature, there-necked flask is dripped 1mol/L sodium hydroxide solution, regulation pH is extremely
10.8, after being added dropwise to complete, it is placed on centrifugation 13min under 3800r/min, collects lower sediment and be vacuum dried 7h,
A kind of high-viscosity polyvinyl butyral resin can be prepared into.
This example operation is simple, adds phenolic resin, wherein in the polyvinyl butyral resin present invention prepared
Addition is addition 250g phenolic resin in 25g polyvinyl butyral resin, is sufficiently mixed uniformly at temperature is 100 DEG C,
Insulated and stirred 1.5h, during use, there is elastic and high bonding force, can uniform application surface of metal product, for metal system
The bonding of product, instead of traditional method coupling metallic article rivet, also reduces the weight of 67% goods simultaneously, permissible
It is widely used in the stickup of packaging, metal and plastic sheeting, can be in large-scale application, wide market.
Example 3
Count the most by weight, weigh respectively 65 parts of deionized waters, 40 parts of polyvinyl alcohol, 10 parts of dodecylbenzene sodium sulfonate,
15 parts of 0.8mol/L hydrochloric acid solutions and 10 parts of hydroxy benzaldehydes are placed in beaker, and stirring mixing is placed in heating in water bath at 80 DEG C
2h, is prepared into mixed solution；Then the mixed solution weighing the above-mentioned preparation of 30mL is placed in there-necked flask, and it is dripped 3.0mL
1mol/L sodium hydroxide solution, control time for adding is 15min, and after being added dropwise to complete, stirring mixing also continues to add 15mL
Dehydrated alcohol, in there-necked flask, is subsequently heated to boiling, Heat preservation 2h；After Heat preservation terminates, stop heating and quiet
Putting and be cooled to room temperature, there-necked flask is dripped 12mL polyacrylic acid, control time for adding is 15min, waits to be added dropwise to complete and is prepared into
Hydroxylating solution, continues stirring mixing and with 1mol/L sodium hydrate regulator solution pH to 7.5, and rotary evaporation hydroxylating is molten subsequently
Liquid, to the 1/8 of original volume, is prepared into hydroxylating polyvinyl alcohol gel liquid；Next the poly-second of hydroxylating of the above-mentioned preparation of 50mL is weighed
Enol coagulant liquid is placed in there-necked flask, at 15 DEG C, drips 25mL hutanal and 2mL lignocaine second in there-necked flask
Alcohol, control time for adding is 15min, and after being added dropwise to complete, stirring mixing is placed in heating in water bath 5h at 45 DEG C；The most to be heated
After completing, stop heating and be cooled to room temperature, there-necked flask is dripped 1mol/L sodium hydroxide solution, regulating pH to 11.0, treat
After being added dropwise to complete, it is placed on centrifugation 15min under 4000r/min, collects lower sediment and be vacuum dried 8h, can prepare
Obtain a kind of high-viscosity polyvinyl butyral resin.
This example operation is simple, adds phenolic resin, wherein in the polyvinyl butyral resin present invention prepared
Addition is addition 300g phenolic resin in 30g polyvinyl butyral resin, is sufficiently mixed uniformly at temperature is 105 DEG C,
Insulated and stirred 2h, during use, there is elastic and high bonding force, can uniform application surface of metal product, for metallic article
Bonding, instead of traditional method coupling metallic article rivet, also reduce the weight of 70% goods, Ke Yiguang simultaneously
General for packing, metal and the stickup of plastic sheeting, can be in large-scale application, wide market.
Claims (1)
1. the preparation method of a temporarily water-soluble high-viscosity polyvinyl butyral resin, it is characterised in that concrete preparation process
For:
(1) count by weight, weigh 45～65 parts of deionized waters, 35～40 parts of polyvinyl alcohol, 5～10 parts of dodecyls respectively
Benzene sulfonic acid sodium salt, 10～15 parts of 0.8mol/L hydrochloric acid solutions and 5～10 parts of hydroxy benzaldehydes are placed in beaker, stirring mixing juxtaposition
At 65～80 DEG C, heating in water bath 1～2h, is prepared into mixed solution；
(2) mixed solution weighing 25～30mL above-mentioned preparations is placed in there-necked flask, the 1mol/ to its dropping 2.5～3.0mL
L sodium hydroxide solution, controlling time for adding is 10～15min, and after being added dropwise to complete, stirring mixing also continues to add 10～15mL
Dehydrated alcohol, in there-necked flask, is subsequently heated to boiling, Heat preservation 1～2h；
(3) after Heat preservation terminates, stop heating and standing is cooled to room temperature, there-necked flask is dripped 10～12mL polypropylene
Acid, controlling time for adding is 10～15min, waits to be added dropwise to complete and is prepared into hydroxylating solution, continues stirring mixing and also uses 1mol/L
Sodium hydrate regulator solution pH to 7.5, rotary evaporation hydroxylating solution is to the 1/8 of original volume subsequently, is prepared into the poly-second of hydroxylating
Enol coagulant liquid；
(4) the hydroxylating polyvinyl alcohol gel liquid weighing 45～50mL above-mentioned preparations is placed in there-necked flask, at 10～15 DEG C,
Dripping 20～25mL hutanals and 1～2mL diethylaminoethanol in there-necked flask, controlling time for adding is 10～15min, treats
After being added dropwise to complete, stirring mixing is placed in heating in water bath 3～5h at 35～45 DEG C；
(5) to be heated complete after, stop heating and be also cooled to room temperature, there-necked flask is dripped 1mol/L sodium hydroxide solution, adjust
Joint pH to 10.5～11.0, after being added dropwise to complete, is placed on centrifugation 10～15min under 3500～4000r/min, collects
Lower sediment is also vacuum dried 6～8h, can be prepared into a kind of high-viscosity polyvinyl butyral resin.
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| CN201610477439.2A CN106046215A (en) | 2016-06-27 | 2016-06-27 | Preparation method of temporarily water-soluble high-viscosity polyvinyl butyral resin |
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| CN201610477439.2A CN106046215A (en) | 2016-06-27 | 2016-06-27 | Preparation method of temporarily water-soluble high-viscosity polyvinyl butyral resin |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106633559A (en) * | 2016-11-09 | 2017-05-10 | 王世伟 | High-performance poly(vinyl butyral) resin and a preparing method thereof |
| CN113461841A (en) * | 2021-07-02 | 2021-10-01 | 浙江德斯泰新材料股份有限公司 | Heat-resistant PVB resin and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6255033B1 (en) * | 1999-07-30 | 2001-07-03 | Creo, Ltd. | Positive acting photoresist compositions and imageable element |
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2016
- 2016-06-27 CN CN201610477439.2A patent/CN106046215A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6255033B1 (en) * | 1999-07-30 | 2001-07-03 | Creo, Ltd. | Positive acting photoresist compositions and imageable element |
Non-Patent Citations (1)
| Title |
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| 伍丹 等: "《有机化学合成反应原理及新技术研究》", 30 April 2015, 中国水利水电出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106633559A (en) * | 2016-11-09 | 2017-05-10 | 王世伟 | High-performance poly(vinyl butyral) resin and a preparing method thereof |
| CN106633559B (en) * | 2016-11-09 | 2019-01-04 | 王世伟 | A kind of high-performance polyethylene polyvinyl butyral resin and preparation method thereof |
| CN113461841A (en) * | 2021-07-02 | 2021-10-01 | 浙江德斯泰新材料股份有限公司 | Heat-resistant PVB resin and preparation method thereof |
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Application publication date: 20161026 |
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