(—) Preface (Qin Xingxian)
Photopolymerized laminating liquid is widely used in laminated glass. It is used by the majority of glass processing manufacturers because of its convenient use and simple operation. However, due to the large number of manufacturers, the product quality is uneven. However, many glass manufacturers have been repeatedly claimed by users. In addition, because many manufacturers use benzoin ethyl ether as a photoinitiator, the products made are prone to yellowing, whitening, and bubbles. reputation across the mezzanine market. We have long published articles criticizing the many shortcomings of this process. For example, the amount of grouting produced by the manufacturer is small, the adhesive layer is thin, the impact resistance of the laminated glass is low, and the safety factor of glass products is low. Can now be mostly used for double-steel laminated glass. The whole property has changed the impact strength of tempered glass, far exceeding the impact strength of ordinary laminated glass. Even if one layer of tempered glass is broken, the other layer can still resist a second impact. Ordinary laminated glass is made of two layers of unstrengthened glass glue, which has low surface strength.
Fully applicable to the safety range of human impact mechanics. It will not cause the human body to suffer because the glass is too strong.
to injury. The higher the surface strength of architectural glass, the better. It is mainly used for rain rides, carports, etc., to prevent falling objects in the air, and to protect people or cars. However, in the process of using the lamination solution in the past, many problems occurred, and the appearance quality of the glass products was made. It will also affect the overall project image.
After several years of research, we found that benzoin ethyl ether is a derivative of benzene, and benzaldehyde and benzophenone are further condensed with anhydrous ethanol in the presence of hydrochloric acid. The properties of benzene are very active in methyl esters. When used in the sun for a long time, it will produce bubbles, yellowing, foaming and other phenomena. It was originally mainly used for photosensitive resin printing, circuit board. Yellowing discoloration does not affect interior quality. However, when used on transparent polyester, it will affect the appearance quality of its products. Modifying its photopolymerization formula and photosensitizer will solve the above-mentioned problems. Over the past few years, we have undergone numerous experiments. Finally, I researched the formula of the new type of laminating liquid and shared it with you.
(2) Laminating liquid formula
Methyl methyl propionate 53%
45% dibutyl phthalate
Methylpropionic acid 5.5%
Ultraviolet frequency common liquid 0.15%
Photosensitive resin 0.2%
Tin chloride 0.02‰
(3) Matters needing attention
①Prepare it strictly according to the proportion. After it is prepared, let it react for three days before using it.
②The raw materials should use industrial first-class products, and the content must reach more than 99.5%
③You can't use PVB leftover material to make edge strips, so that the products will have contact marks on the edges.
④When there is no sunlight, the polymerization time should be longer.
⑤Some glass factories have been pursuing the speed of polymerization. The faster the polymerization, the faster the aging of the internal adhesive layer of the product. The quality of the product is not guaranteed.
Photopolymerization Laminating Liquid (Shadowless Adhesive Formula)
(—) Preface (Qin Xingxian)