Method for preparing polyvinyl butyral layer structure utilizing waste glass

A technology of polyvinyl butyral and waste glass, which is applied in the direction of recycling technology, chemical instruments and methods, synthetic resin layered products, etc., and can solve the problem of untaught polyvinyl butyral polymer organic matter recycling and reuse, etc. question

Active Publication Date: 2015-03-25
邵淑惠 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, the technical solutions provided by the above-mentioned patent documents are all limited to how to recycle the inorganic substances in waste glass, and then apply them to the fields related to building materials or semiconductors; they do not teach how to recycle waste safety glass, waste windshield glass or waste flat glass Relevant technologies for the recovery and reuse of polyvinyl butyral polymer organic matter in

Method used

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  • Method for preparing polyvinyl butyral layer structure utilizing waste glass
  • Method for preparing polyvinyl butyral layer structure utilizing waste glass
  • Method for preparing polyvinyl butyral layer structure utilizing waste glass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0085] First, a waste glass is provided, which contains glass, polyvinyl butyral and a small amount of unnecessary impurities. Based on the whole waste glass, the content of polyvinyl butyral is about 10% by weight; the content of glass is about 87% by weight; the content of unnecessary impurities such as sludge is about 3% by weight. In this embodiment, the waste glass is a waste automobile safety glass, and its layered structure includes two glass plates and a polyvinyl butyral film sandwiched between the glass plates.

[0086] Next, use the rolling force of 200kgf to destroy the waste glass by roller compaction to obtain a plurality of crushed waste glass; then use a tearing machine to separate the crushed waste glass with a tearing force of 7000kgf , to obtain multiple scrap glass shards.

[0087] Here, after the waste glass to be processed in this embodiment undergoes the above-mentioned rolling and tearing steps, the processed waste glass is composed of a plurality of w...

Embodiment 2

[0101] In this example, the polyvinyl butyral material was recovered from waste glass roughly by the method described in Example 1; in addition, 4 mm polyvinyl butyral particles were obtained through drying and kneading steps .

[0102] The difference is that in this embodiment, the calendering step is carried out with four rubber rollers at a temperature of 140° C. with a calendering force of 25 kgf and a calendering rate of 60 m / min, thereby making the above-mentioned polyvinyl butyral The rubber particles are calendered to form a polyvinyl butyral layer.

[0103] Next, prepare a fabric layer with an adhesive layer on its surface, and collect the fabric layer with an adhesive layer on a roller, and collect the polyvinyl butyral layer prepared above on another roller, And make the adhesive layer on the fabric layer close to the polyvinyl butyral layer to be bonded, and make the fabric layer and the poly The vinyl butyral layers are attached to each other through the adhesiv...

Embodiment 3

[0106] In this example, the polyvinyl butyral material is recovered from waste glass through the method described in Example 2; in addition, through drying, kneading, calendering and other steps, a bonded polyvinyl butyral material is obtained. Aldehyde fabric layer.

[0107] Then, the fabric layer pasted with the polyvinyl butyral layer was collected on a roller, and the polyvinyl butyral layer obtained in Example 1 was collected on another roller, and the polyvinyl butyral layer was collected on another roller, and the The bonding force, the bonding temperature of 140°C, and the bonding speed of 30 m / min make the fabric layer bonded with the polyvinyl butyral layer and the polyvinyl butyral collected on another roller The layers are attached to each other to form a polyvinyl butyral layered structure. Here, when the fabric layer pasted with the polyvinyl butyral layer is collected and pasted with the polyvinyl butyral layer on another roller, the polyvinyl butyral layer on ...

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Abstract

The invention provides a method for preparing a polyvinyl butyral layer structure utilizing waste glass. The method comprises: separating a piece of waste glass to obtain waste glass fragments with each fragment containing a piece of cracked polyvinyl butyral film which has the total surface area less than 18 square centimeters; washing and grinding the waste glass fragments, and removing the glass fragments from the pieces of cracked polyvinyl butyral film of the waste glass fragments to obtain polyvinyl butyral material; drying the polyvinyl butyral material, and granulating the dried polyvinyl butyral material to obtain polyvinyl butyral micelles; and enabling the polyvinyl butyral micelles to form the polyvinyl butyral layer structure. According to the invention, though such method, not only resource waste can be decreased, but also the polyvinyl butyral layer structure with waterproof function can be prepared without any organic solvent used and excessive energy wasted.

Description

technical field [0001] The invention relates to a method for preparing a polyvinyl butyral layered structure by using waste glass, and belongs to the technical field of waste recycling or processing. Background technique [0002] Due to the characteristics of transparency, air-tightness, high strength and high hardness, glass has been widely used in various fields such as buildings, vehicles and display devices; and in order to improve the safety and applicability of glass, Most of the glass used in the above fields on the market is combined with thermoplastic polyvinyl butyral (PVB) to form various types of safety glass, windshield glass or flat glass. [0003] However, since waste glass is a non-perishable material, it is not suitable for long-term treatment of a large amount of waste glass, whether it is disposed of by landfill, composting or incineration. Therefore, environmentalists and recyclers from all walks of life are actively developing various technologies for r...

Claims

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Application Information

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IPC IPC(8): B32B27/12B32B27/30B29B17/02
CPCB32B27/12B32B27/42B32B2250/02B32B2307/73B32B2437/00B32B2437/02B32B2439/46B32B2479/00Y02W30/62
Inventor 汪毓杰
Owner 邵淑惠
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