CN113512383A

CN113512383A - High-transparency industrial adhesive formula and preparation method thereof

Info

Publication number: CN113512383A
Application number: CN202110727015.8A
Authority: CN
Inventors: 黄云昌
Original assignee: Dejiasheng Xiamen Industrial Technology Co ltd
Current assignee: Dejiasheng Xiamen Industrial Technology Co ltd
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2021-10-19
Anticipated expiration: 2041-06-29
Also published as: CN113512383B

Abstract

A high-transparency industrial glue formula comprises the following components in percentage by mass: 60.5 percent of acrylic solvent type pressure-sensitive adhesive, 20.25 percent of bridging agent, 11.25 percent of gloss oil and 8 percent of diluent; the components are all products of ETERNAL brand, the acrylic solvent type pressure-sensitive adhesive is ETERAC 77307, the bridging agent is ETERAC EC-88, the gloss oil is ETERAC EC-65, and the diluent is RE 195. The invention can improve the transparency of the industrial adhesive, and the transparency can reach about 85 percent.

Description

High-transparency industrial adhesive formula and preparation method thereof

Technical Field

The invention relates to the technical field of building materials, in particular to a high-transparency industrial adhesive formula mainly applied to installation and fixation of a transparent window or glass.

Background

Based on the trend of modern industrial design to be simple and easy to install, the wide application of high-transparency and semitransparent building glass or acrylic plate materials, such as marking manufacture, decorative glass panels or partition walls, in the current market is increased. For mounting and fixing of translucent or transparent materials, the effect of viewing from the front may be compromised if the mounting is to be fixed with conventional rivets or colored adhesive.

The transparent adhesive tape on the market is generally used in common consumer-grade markets, such as stationery, advertisements and the like, and cannot be applied to industrial-grade products (the industrial-grade application requirements are strict, and most products need to pass weather resistance, high-temperature and high-humidity tests and the like). Therefore, the invention provides an industrial grade high-transparency adhesive formula which can be applied to semitransparent or transparent industrial products or buildings.

Disclosure of Invention

The invention aims to provide a high-transparency industrial adhesive formula, which can improve the transparency of an industrial adhesive, wherein the transparency can reach about 85%.

In order to achieve the above purpose, the solution of the invention is:

a high-transparency industrial glue formula comprises the following components in percentage by mass: 60.5 percent of acrylic solvent type pressure-sensitive adhesive, 20.25 percent of bridging agent, 11.25 percent of gloss oil and 8 percent of diluent;

the components are all products of ETERNAL brand, the acrylic solvent type pressure-sensitive adhesive is ETERAC 77307, the bridging agent is ETERAC EC-88, the gloss oil is ETERAC EC-65, and the diluent is RE 195.

Further, the positive deviation and the negative deviation of the proportion of each component are 2%.

The preparation method of the high-transparency industrial adhesive comprises the steps of mixing the acrylic solvent type pressure-sensitive adhesive, the bridging agent and the gloss oil according to the mass percentage, and diluting the mixture by using a diluent with the mass percentage of 8% after mixing the components to obtain the high-transparency industrial adhesive formula.

Further, the components are put into a stirrer and stirred for 25 minutes at the temperature of 25-35 ℃ to be fully fused.

By adopting the scheme, the gloss oil, namely the light activated compound is added into the adhesive with different colors, so that the coverage degree of the adhesive is lowered, the pigment of the adhesive is not changed through reasonable proportion arrangement, and the transparency of the adhesive can be improved. Experiments show that when the adhesive is coated on materials such as PET, transparent acrylic, transparent PC, transparent PVC or transparent PET, the adhesive can allow about 85% of luminosity to pass through, and no visual obstruction is caused at a distance more than 100cm after the adhesive is adhered and fixed on a back attachment.

Drawings

FIG. 1 is a graph of transparency test data for a high clarity industrial glue formulation of the present invention.

Detailed Description

In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following specific examples.

The invention discloses a high-transparency industrial adhesive formula which comprises the following components in percentage by mass: 60.5 percent of acrylic solvent type pressure-sensitive adhesive, 20.25 percent of bridging agent, 11.25 percent of gloss oil and 8 percent of diluent. Referring to the table below, since each manufacturer and each brand of adhesive has different compositions and different color differences even with the same color, the ETERNAL brand is used for each component used in the present invention. The acrylic solvent type pressure-sensitive adhesive is ETERAC 77307 in model, the bridging agent is ETERAC EC-88 in model, the gloss oil is ETERAC EC-65 in model, and the diluent is RE195 in model.

Among them, the ETERNAL brand is Changxing chemical industry, Inc., Taiwan corporation, Changxing group specialty, specialty chemicals in the polymer field, and key materials in many emerging industries. With the upgrading and transformation of the industry, the special polymer chemical materials also tend to advance in the product hierarchy of high added value, high technology, environmental friendliness and high automation. The acrylic solvent type pressure sensitive adhesive product is a polymer formed by cross-linking unsaturated bonds between acrylic acid and ester monomers thereof. The bridging agent is an important component of the hydrocarbon-polymerized photoresist, the photochemical curing effect of the photoresist depends on the reaction of the crosslinking agent with double photosensitive functional groups, the bridging agent (namely the crosslinking agent) generates double free radicals after exposure, the crosslinking agent interacts with the hydrocarbon-polymerized resin to form bridging bonds between polymer molecular chains and becomes insoluble substances with a three-dimensional structure, and the curing rate is influenced by too low or too high proportion of the bridging agent, so that different transparent effects are caused. The gloss oil is a synthetic resin, has transparent color, consists of a base material and an auxiliary agent, and plays a role in increasing the transmission and the gloss. The diluent is an active diluent and is used for reducing the viscosity of the resin, and the raw materials of each component cannot be fully fused due to too low or too high proportion of the diluent.

Because the bridging agent participates in reaction depending on crosslinking with double photosensitive functional groups, the bridging agent generates a diradical after exposure, the diradical interacts with the poly hydrocarbon resin, a bridging bond curing effect is formed between polymer molecular chains, and simultaneously, the anti-reflection and intensifying effects of the gloss oil form a proper proportion, so that the high transparency characteristic is achieved. The bridging agent and the gloss oil are added into the acrylic solvent type pressure-sensitive adhesive, the coverage degree of the adhesive is reduced by utilizing the optically activated compound, and the pigment of the adhesive is unchanged by reasonable proportion configuration of the bridging agent, so that the effect of improving the integral transparency is achieved, and the high-transparency colloid is formed.

The proportion of the components can deviate by 2 percent plus or minus. As in the table below, the RE195 diluent described cannot be replaced by other brands.

Brand	Components	Ratio of	Deviation of positive and negative
				ETERNAL	ETERAC 77307 acryl solvent type pressure-sensitive adhesive	60.5%	±2%
ETERNAL	EC-88 bridging agent	20.25%	±2%
				ETERNAL	ETERAC EC-65 gloss oil	11.25%	±2%
ETERNAL	RE195 diluent	8%	±2%

The invention also discloses a preparation method of the high-transparency industrial adhesive, wherein when the industrial adhesive is prepared, the acrylic solvent type pressure-sensitive adhesive, the bridging agent and the gloss oil are mixed according to the mass percentage, and the high-transparency industrial adhesive formula is obtained by diluting the mixed components with the diluent with the mass percentage of 8%.

The high-transparency industrial adhesive prepared by the formula is used for testing the transparency by coating the high-transparency adhesive formula on a PET (polyethylene terephthalate) substrate and other substrates, and the test result is as follows:

item	Results	Test conditions
			Transparency	85~89.5%	Brand of testing machine: LINSHANG, model: LS116, preheating for 5 minutes, resetting the display screen to zero, and automatically correcting the equipment by 100 percent

Wherein:

testing materials: 25um PET (polyethylene terephthalate)

Coating: 60.5% of ETERAC 77307 acrylic solvent type pressure-sensitive adhesive, 20.25% of ETERAC EC-88 bridging agent, 11.25% of ETERAC EC-65 gloss oil and 8% of RE195 diluent;

drying conditions are as follows: 90 degrees for 90 seconds;

and (3) testing time: test 72 hours after baking.

The adhesive stirred by the formula is coated on a PET substrate by a coating machine and then dried and formed by an oven, and the formed adhesive tape is a film and then tested by a testing instrument.

The test results are shown in fig. 1, which is the transparency test data of the high-transparency industrial glue formulation of the present invention, and the four curves are the four test results respectively, wherein the Y coordinate is the transparency (unit percentage) and the X coordinate is the test length (unit: mm). As can be seen from the figure, the transparency of the adhesive prepared by the formula can reach more than 85% (wherein, the front-end bending section is the process of flattening the head of the test equipment).

In addition, through testing, the viscosity of the industrial glue formula is in an industrial grade, and according to the test standard of ASTM3654, the 90-degree tensile force can reach 26N/cm, and meanwhile, the strength requirement is met.

The invention adds gloss oil, namely light activated compound into the acrylic solvent type pressure-sensitive adhesive to reduce the covering degree of the adhesive, and the reasonable proportion of the bridging agent is used for configuration, so that the pigment of the adhesive is not changed, and the transparency of the adhesive can be improved. Experiments show that when the adhesive is coated on materials such as PET, transparent acrylic, transparent PC, transparent PVC or transparent PET, the adhesive can allow about 85% of luminosity to pass through, and after the adhesive is adhered and fixed on a back attachment, no visual obstruction is caused at a distance of more than 100 cm.

The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications thereof by those skilled in the art should be considered as not departing from the scope of the present invention.

Claims

1. The high-transparency industrial glue formula is characterized by comprising the following components in percentage by mass: 60.5 percent of acrylic solvent type pressure-sensitive adhesive, 20.25 percent of bridging agent, 11.25 percent of gloss oil and 8 percent of diluent;

2. The high transparency industrial glue formulation of claim 1, wherein: the positive deviation and the negative deviation of the proportion of each component are 2 percent.

3. A preparation method of high-transparency industrial glue is characterized by comprising the following steps: the acrylic solvent type pressure-sensitive adhesive, bridging agent and gloss oil in claim 1 are mixed according to the mass percentage, and the components are diluted by a diluent with the mass percentage of 8% after being mixed to obtain the high-transparency industrial adhesive formula.

4. The method for preparing the high-transparency industrial glue according to claim 3, characterized in that: all the components are put into a stirrer and stirred for 25 minutes at the temperature of 25-35 ℃ to be fully fused.