CN102504458A - PVB (polyvinyl butyral) sheet containing retarder and preparation method - Google Patents
PVB (polyvinyl butyral) sheet containing retarder and preparation method Download PDFInfo
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- CN102504458A CN102504458A CN2011103916336A CN201110391633A CN102504458A CN 102504458 A CN102504458 A CN 102504458A CN 2011103916336 A CN2011103916336 A CN 2011103916336A CN 201110391633 A CN201110391633 A CN 201110391633A CN 102504458 A CN102504458 A CN 102504458A
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- Prior art keywords
- pvb
- retarder
- radical
- sheet material
- white dyes
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
Abstract
The invention provides a PVB (polyvinyl butyral) sheet containing retarder, which belongs to the technical field of thermoplastic high polymer materials. The PVB sheet containing the retarder is prepared by the following raw materials: by weight parts, 80 to 100 parts of PVB resin powder, 0.1 to 0.35 part of oxidation inhibitor, 0.1 to 0.35 part of ultraviolet absorber, 30 to 40 parts of plasticizer, 20 to 40 parts of PVB offcuts, 0.001 to 0.0025 part of fluorescent whitening agent and 0.15 to 0.35 part of the retarder. The invention further provides a preparation method of the PVB sheet, which includes steps of uniformly mixing the above raw materials excluding the plasticizer in a mixer, adding the plasticizer into the mixer to mix uniformly, filtering melts after the melts are extruded by a double-screw extruder, sending the melts into a die head by a gear pump to form a mould sheet, so that the PVB sheet is prepared. The PVB sheet is anti-yellow, free of adhesive failure and excellent in anti-ageing performance.
Description
Technical field
The invention belongs to the thermoplastic macromolecule material technical field, relate in particular to the PVB sheet material that utilizes retarder to prepare superior ageing-resistant performance.Simultaneously, the invention still further relates to the preparation method of the PVB sheet material that contains retarder.
Background technology
PVB is the abbreviation of polyvinyl butyral acetal English name (Polyvinl Butaral), and it is generated by macromolecular reaction: PVA (PVAC) generates PVA through saponification reaction, and PVA generates PVB through acetalation.The PVB resin-oatmeal pushes and moulding production pvb film through the softening agent plasticizing.
Polyvinyl butyral acetal (PVB) diaphragm is transparent, fast light, heat-resisting, soft owing to having, low temperature is non-sclerous; And be applied to shatter proof glass with excellent properties such as glass and metal good bonding; When particularly receiving great impact, do not cause glass fragment outwards to disperse.(beautiful, moral) just has been used for pvb film the windshield of car as far back as some developed countries of 1820s, thereby improved the SF of transportation industry greatly.Up to the present, the application of shatter proof glass is quite extensive, except that car, also generally adopts in fields such as aircraft manufacturing, subway door and window, bank counter, building trade, solar cell films.
In recent years, PVB was developed to deeper practical application by initial a safety, anti-ultraviolet function on function effectiveness as the first-selected intermediate layer material of shatter proof glass.For example, E.I.Du Pont Company has released the PVB shatter proof glass intermediate coat of strong mechanical performance, the PVB intermediate coat of superior ageing-resistant performance; Jia Shi good fortune company has released the used for solar batteries PVB film with good ageing-resistant performance and electrical insulation capability; Japan ponding company has released sound insulation PVB film, heat insulation PVB film; Head promise company has released PVB intermediate coat of good resistance to low temperature or the like.These global industry giants take the measure that holds in close confidence to the technology of the core product of oneself and technology; Thereby occupied 60% market nearly, global PVB market; Almost reach the situation of whole world monopolization in high-end PVB market; Domestic PVB industry can only be produced the PVB intermediate coat that is used for middle and low-end market, the complete dependence on import of high-end PVB intermediate coat.The PVB glued membrane of international most advanced level, general working life is at least in 10 years, even can reach 25 years.And homemade PVB glued membrane is because still not exclusively ripe on prescription, technology, technology; The general phenomenon that flavescence will occur, come unstuck after 4～7 years of using; Influence the work-ing life of shatter proof glass or solar panel greatly, this also homemade just PVB glued membrane can not be used for the basic place of high-end market.
Summary of the invention
The object of the invention is intended to overcome the shortcoming of above-mentioned prior art; A kind of PVB sheet material that contains retarder is provided; This kind retarder can catch PVB sheet material intramolecule because the radical that photoaging and thermal ageing generate; Or the free radical reaction that degraded takes place is delayed, and can suppress the flavescence of PVB film, come unstuck, ageing-resistant.
Therefore, the object of the invention provides the PVB that contains retarder sheet material, and it is to be prepared from following materials based on weight:
PVB resin-oatmeal: 80～100;
Oxidation inhibitor: 0.1～0.35;
UV light absorber: 0.1～0.35;
Softening agent: 30～40;
PVB scrap stock: 20～40;
White dyes: 0.001～0.0025
Retarder: 0.15～0.35
Further, described oxidation inhibitor is antioxidant 1010, and it can prevent more effectively that diaphragm is oxidized in the extrusion moulding process; Described UV light absorber is a ultraviolet absorbent uv-326, and its effect is that the pvb film that contains it has the ultraviolet function of absorption; Described softening agent is 3GO, and this softening agent is a PVB characteristic softening agent, contains hydroxyl and ehter bond in the molecular structure, can be well compatible with PVB, and it can make pvb film possess resistance to low temperature; Described white dyes is white dyes OB; Described retarder is 2,3, the 6-pseudocuminol.
Further; Described retarder and PVB are because photoaging and thermal ageing generate a new radical at the radical generation radical transfer reaction that intramolecule generates, and newly-generated radical reacts with the aging radical generation radical termination that generates again to be realized slow gathering; 2. 1. described radical transfer reaction formula distinguished as follows with the radical termination reaction formula:
Wherein, M
xBe the symbol (symbol that point of power exponent is a radical, such symbol is represented a radical exactly) in the chemistry, the radical that expression PVB produces in weathering process; It and retarder 2,3,6-pseudocuminol effect generation radical transfer reaction; Generate a new radical and small-molecule substance; Newly-generated radical again with the aging radical generation radical termination reaction that generates, play retardation, thereby suppress the flavescence of PVB film, come unstuck.
Another object of the present invention is to provide the preparation method of the PVB sheet material that contains retarder, it comprises the steps:
(1) the PVB scrap stock are ground into particulate material with crusher, send into polygonally in cone-type mixer through blast system, and add ground PVB resin simultaneously,
(2) with mixing in oxidation inhibitor, UV light absorber, white dyes, the retarder adding mixing machine, simultaneously softening agent is mixed the back and squeeze into mixing machine with volume pump.
(3) the mixing machine chuck adds twin screw extruder with melt extrusion with the water quench below 18 ℃ with this mixture mixing after 25～35 minutes, refilters, and sends into die head with toothed gear pump and carries out extrusion moulding, promptly gets described PVB sheet material.
Further, the oxidation inhibitor described in the step (2) is antioxidant 1010; Described UV light absorber is a ultraviolet absorbent uv-326; Described softening agent is 3GO; Described white dyes is white dyes OB; Described retarder is 2,3, the 6-pseudocuminol.
Further, the melt temperature extruded of the twin screw extruder described in the step (3) is 145～155 ℃.
The retarder 2 that contains in the prescription of PVB sheet material of the present invention; 3; The 6-pseudocuminol can be effectively, rapidly " seizure " PVB produce and use in the radical that produces; Can play " working in coordination with " effect with oxidation inhibitor and UV light absorber, guarantee that the xanthochromia phenomenon does not take place film in process of production, xanthochromia and the drawback of coming unstuck in use also do not take place.This technology can replace similar imported product, and laminated safety glass can reach on working life more than 10 years, simultaneously should technology also can become the technical foundation of sun power PVB film.
The beneficial effect that is brought in order more to know the present invention, following table are that product of the present invention is as shown in table 1 with each item index detection data list contrast with regard to the PVB sheet material of the usual prodn that does not carry out formula adjustment, international most advanced level product:
Table 1
Embodiment
Can further be well understood to the present invention through specific embodiment of the present invention given below.But they are not to qualification of the present invention.
Produce the production technique of PVB film with PVB resin-oatmeal, PVB scrap stock, retarder and produce qualified PVB sheet material:
Embodiment 1
The PVB scrap stock 45kg that weighs up weight is ground into particulate material with crusher; (high-power blower is installed at crusher discharge port place through blast system; Broken good particulate material is sent into the hollow iron sheet tube of the about 30cm of diameter through the wind-force of blower fan; Be admitted in the mixing machine then) send into polygonal in cone-type mixer; And add ground PVB resin 80kg simultaneously, with mixing in antioxidant 1010 0.15kg, ultraviolet absorbent uv-326 0.15kg, white dyes OB 0.05kg, the retarder 0.25kg adding mixing machine, simultaneously softening agent 3GO 30kg is mixed the back and squeeze into mixing machine with volume pump.The mixing machine chuck is with the water quench below 18 ℃.After this mixture mixed 25～35 minutes; Add twin screw extruder and carry out melt extrusion, 145～155 ℃ of control melt temperatures, melt is through filtering; Send into die head with toothed gear pump; Adjust the die lip gap of die head and the pulling speed of cooling roller according to the condition of production of reality,, promptly make the PVB sheet material that the present invention contains retarder so that the thickness of the PVB film of producing is 0.76mm.
Embodiment 2
The PVB scrap stock 25kg that weighs up weight is ground into particulate material with crusher; Send into polygonal in cone-type mixer through blast system; And add ground PVB resin 100kg simultaneously; With mixing in antioxidant 1010 0.15kg, ultraviolet absorbent uv-326 0.15kg, white dyes OB 0.05kg, the retarder 0.2kg adding mixing machine, simultaneously softening agent 3GO 40kg is mixed the back and squeeze into mixing machine with volume pump.The mixing machine chuck is with the water quench below 18 ℃.After this mixture mixed 25～35 minutes; Add twin screw extruder and carry out melt extrusion, 145～155 ℃ of control melt temperatures, melt is through filtering; Send into die head with toothed gear pump; Adjust the die lip gap of die head and the pulling speed of cooling roller according to the condition of production of reality,, promptly make the PVB sheet material that the present invention contains retarder so that the thickness of the PVB film of producing is 0.76mm.
Embodiment 3
The PVB scrap stock 100kg that weighs up weight is ground into particulate material with crusher; Send into polygonal in cone-type mixer through blast system; And add ground PVB resin 350kg simultaneously; With mixing in antioxidant 1010 1.0kg, ultraviolet absorbent uv-326 1.0kg, white dyes OB 0.15kg, the retarder 1kg adding mixing machine, simultaneously softening agent 3GO 110kg is mixed the back and squeeze into mixing machine with volume pump.The mixing machine chuck is with the water quench below 18 ℃.After this mixture mixed 25～35 minutes; Add twin screw extruder and carry out melt extrusion, 145～155 ℃ of control melt temperatures, melt is through filtering; Send into die head with toothed gear pump; Adjust the die lip gap of die head and the pulling speed of cooling roller according to the condition of production of reality,, promptly make the PVB sheet material that the present invention contains retarder so that the thickness of the PVB film of producing is 0.76mm.
The foregoing description is merely preferred embodiment of the present invention, is not to limit protection scope of the present invention according to this, so: all equivalences of doing according to the principle of the invention change, and all should be covered by within protection scope of the present invention.
Claims (6)
1. contain the PVB sheet material of retarder, it is characterized in that, it is formed by the feedstock production of following parts by weight:
PVB resin-oatmeal: 80～100
Oxidation inhibitor: 0.1～0.35
UV light absorber: 0.1～0.35
Softening agent: 30～40
PVB scrap stock: 20～40
White dyes: 0.001～0.0025
Retarder: 0.15～0.35.
2. the PVB sheet material that contains retarder according to claim 1 is characterized in that:
Described oxidation inhibitor is antioxidant 1010;
Described UV light absorber is a ultraviolet absorbent uv-326;
Described softening agent is 3GO;
Described white dyes is white dyes OB;
Described retarder is 2,3, the 6-pseudocuminol.
3. the PVB sheet material that contains retarder according to claim 2; It is characterized in that: described retarder and PVB are because photoaging and thermal ageing generate a new radical at the radical generation radical transfer reaction that intramolecule generates, and newly-generated radical reacts with the aging radical generation radical termination that generates again to be realized slow gathering; Described radical transfer reaction and radical termination reaction equation are distinguished as follows:
Wherein, M
x The radical that in weathering process, produces for PVB.
4. contain the preparation method of the PVB sheet material of retarder, be characterised in that to comprise the steps:
(1) the PVB scrap stock are ground into particulate material with crusher, send into polygonally in cone-type mixer through blast system, and add ground PVB resin simultaneously,
(2) with mixing in oxidation inhibitor, UV light absorber, white dyes, the retarder adding mixing machine, simultaneously softening agent is mixed the back and squeeze into mixing machine with volume pump.
(3) the mixing machine chuck adds twin screw extruder with melt extrusion with the water quench below 18 ℃ with this mixture mixing after 25～35 minutes, refilters, and sends into die head with toothed gear pump and carries out extrusion moulding, promptly makes described PVB sheet material.
5. the preparation method who contains the PVB sheet material of retarder according to claim 4 is characterized in that:
Described oxidation inhibitor is antioxidant 1010;
Described UV light absorber is a ultraviolet absorbent uv-326;
Described softening agent is 3GO;
Described white dyes is white dyes OB;
Described retarder is 2,3, the 6-pseudocuminol.
6. the preparation method who contains the PVB sheet material of retarder according to claim 4 is characterized in that: the melt temperature that described twin screw extruder is extruded is 145～155 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103916336A CN102504458A (en) | 2011-12-01 | 2011-12-01 | PVB (polyvinyl butyral) sheet containing retarder and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103916336A CN102504458A (en) | 2011-12-01 | 2011-12-01 | PVB (polyvinyl butyral) sheet containing retarder and preparation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102504458A true CN102504458A (en) | 2012-06-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103916336A Pending CN102504458A (en) | 2011-12-01 | 2011-12-01 | PVB (polyvinyl butyral) sheet containing retarder and preparation method |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1942564A (en) * | 2004-04-14 | 2007-04-04 | 科聚亚公司 | Ketone diarylamine condensates |
| CN102174238A (en) * | 2011-03-04 | 2011-09-07 | 浙江德斯泰塑胶有限公司 | Formula for preparing high-strength PVB (Polyvinyl Butyral) sheet |
-
2011
- 2011-12-01 CN CN2011103916336A patent/CN102504458A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1942564A (en) * | 2004-04-14 | 2007-04-04 | 科聚亚公司 | Ketone diarylamine condensates |
| CN102174238A (en) * | 2011-03-04 | 2011-09-07 | 浙江德斯泰塑胶有限公司 | Formula for preparing high-strength PVB (Polyvinyl Butyral) sheet |
Non-Patent Citations (1)
| Title |
|---|
| 天津轻工业学院: "《塑料助剂》", 31 March 1997, 中国轻工业出版社, article "高等学校轻工专业试用教材" * |
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Application publication date: 20120620 |