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Modified polyvinyl butyral (PVB) resin with high plasticizer absorption rate, and sound reduction PVB film containing modified PVB resin

A plasticizer and resin technology, applied in the field of PVB resin modified with high plasticizer absorption rate and sound-reducing PVB film containing it, can solve the problem of no plasticizer absorption and sound-reducing performance modified PVB resin, no Issues such as patents and literature reports

Inactive Publication Date: 2018-08-10
ZHANGJIAGANG ALIEN NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, as far as the applicant knows, there is no modified PVB resin that can improve plasticizer absorption and sound reduction performance on the market, and there are no related patents and literature reports.

Method used

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  • Modified polyvinyl butyral (PVB) resin with high plasticizer absorption rate, and sound reduction PVB film containing modified PVB resin
  • Modified polyvinyl butyral (PVB) resin with high plasticizer absorption rate, and sound reduction PVB film containing modified PVB resin
  • Modified polyvinyl butyral (PVB) resin with high plasticizer absorption rate, and sound reduction PVB film containing modified PVB resin

Examples

Experimental program
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Effect test

Embodiment 1

[0043] Synthesis of PVB resin modified with high plasticizer absorption rate and using it to manufacture rectangular sound-reducing PVB film

[0044] ⑴Add modifier before PVB resin synthesis to make PVB resin modified with high plasticizer absorption rate:

[0045] Add 200kg of PVA granules with 12% acetyl content and 3000kg of pure water into a dissolution tank, stir and heat to 95°C. After the PVA is completely dissolved, introduce it into a reaction kettle and start to lower the temperature. At 45°C, add 150 kg of n-butyraldehyde. After stirring for 0.5 hours, it becomes milky white. When the temperature drops to 10°C, add 400 kg of dilute hydrochloric acid with a concentration of 6mol / L. Start the acetal reaction to synthesize PVB with 50 kg of modifier rosin resin. After reacting at a low temperature of 10°C for 2 hours, the temperature is slowly raised to 65°C at a rate of 20°C / h, and kept at 65°C for 2 hours. The reaction is over . All the materials in the reaction ke...

Embodiment 2

[0063] Synthesize PVB resin modified with high plasticizer absorption rate and use it to make rectangular sound-reducing PVB film with ribbon on top

[0064] (1) Modification is carried out in the synthesis of PVB resin to manufacture modified PVB resin with high plasticizer absorption rate:

[0065] Add 180kg of PVA granules with 10% acetyl content and 2500kg of pure water into a dissolution tank, stir and heat to 90°C. After the dissolution is complete, introduce it into a reaction kettle and start to lower the temperature. Add 120 kg of n-butyraldehyde at 40 ° C, and it will become milky white after stirring for 0.5 hours. When the temperature drops to 10 ° C, add 350 kg of dilute hydrochloric acid with a concentration of 6mol / L to start For the acetal reaction of PVB synthesis, after reacting at a low temperature of 10°C for 2 hours, add 25 kg of modifier maleic acid modified rosin ester, slowly raise the temperature to 65°C at a rate of 20°C / h, and keep it warm at 65°C A...

Embodiment 3

[0079] Synthesis of PVB resin modified with high plasticizer absorption rate and using it to manufacture wedge-shaped sound-reducing PVB film

[0080] ⑴PVB resin is modified after synthesis to produce modified PVB resin with high plasticizer absorption rate:

[0081] Add 300kg of PVA granules with 8% acetyl content and 3000kg of pure water into a dissolution tank, stir and heat to 90°C. After the dissolution is complete, introduce it into a reaction kettle and start to lower the temperature. At 50°C, add 150 kg of n-butyraldehyde, and stir for 0.5 hours to become milky. When the temperature drops to 15°C, add 360 kg of dilute hydrochloric acid with a concentration of 6mol / L. Start the acetal reaction for the synthesis of PVB, react at a low temperature of 15°C for 2 hours, then slowly raise the temperature to 65°C at a rate of 20°C / h, and keep it at 65°C for 2 hours. After the acetal reaction is over, add 30 kg of modifier bis (Methylbenylene)sorbitol. All the materials in t...

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Abstract

The invention discloses modified polyvinyl butyral (PVB) resin with high plasticizer absorption rate, and a sound reduction PVB film containing the modified PVB resin. Every 100 parts by weight of themodified PVB resin can absorb 40-120 parts by weight of plasticizer, and the plasticizer absorption rate of the modified PVB resin is 1.03-3.08 times the highest plasticizer absorption rate of the ordinary PVB resin; the sound reduction PVB film prepared from the modified PVB resin is free from plasticizer seepage for a long time, and can reduce noise by 1-10 decibels (dB) compared with the ordinary PVB of the same thickness. In addition, the sound reduction PVB film can also be transformed into a wedge-shaped structure from a rectangular structure by means of a hot pressing process, thus being conveniently used for head-up display type laminated glass.

Description

technical field [0001] The invention relates to a PVB resin modified with high plasticizer absorption rate and a sound-reducing PVB film containing it, which belongs to the field of new materials. Background technique [0002] Noise has become a major hazard to human beings. Noise can damage people's hearing, cardiovascular function, endocrine system, affect rest, cause fatigue, neurasthenia, and reduce work efficiency. The sound frequency that the human ear can hear is 20-20000 Hz, and the particularly sensitive frequency is 1000-5000 Hz. Noise mainly comes from transportation, vehicle horns, industrial production, building construction, music, TV, loudspeakers, downtown streets, and other people's speech. According to statistics, currently 84% of the population in the United States is seriously disturbed by noise, and 20% of the population is under the threat of strong noise that damages hearing. Glass windows are the weakest part of buildings and vehicles to block exter...

Claims

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Application Information

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IPC IPC(8): C08L29/14C08L29/04C08L71/02C08K13/02C08K5/103C08K5/20C08K3/24C08K5/3475C08K3/22B32B27/30B32B27/06B32B27/22B32B27/18B32B33/00
CPCB32B27/08B32B27/18B32B27/22B32B27/30B32B33/00B32B2307/102C08L29/14C08L2205/02C08L2205/025C08L2205/03C08L29/04C08L93/04C08K13/02C08K5/103C08K5/20C08K3/24C08K5/3475C08L71/02C08K3/22
Inventor 张麒
Owner ZHANGJIAGANG ALIEN NEW MATERIAL TECH CO LTD
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