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Hot melt adhesive for hollow glass warm edge strip and preparation method of hot melt adhesive

A technology of warm edge strips and hot melt adhesives, which is applied in the direction of adhesives, adhesive types, mineral oil hydrocarbon copolymer adhesives, etc., and can solve problems such as poor bonding performance, poor adhesiveness of silicone adhesives, and low thermal conductivity. problems, to achieve the effect of simple process, easy control of conditions, and broad application prospects

Active Publication Date: 2021-05-14
HANGZHOU ZHIJIANG NEW MATERIAL CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the Chinese patent whose publication number is CN111690117A discloses a warm edge strip for hollow glass and its preparation method and application. The warm edge strip is a two-component polyurethane with low thermal conductivity; Butyl glue used in insulating glass system
Another example is that the Chinese patent with the publication number CN110437771A discloses a hot-melt adhesive for insulating glass warm edge strip coating and a manufacturing method thereof. The hot-melt adhesive has a good bonding effect on PP, PVC, and stainless steel; The bonding effect of ketone glue is poor, and it is mainly used for wrapping warm edge strips, thereby reducing the thermal conductivity of warm edge strips
The Chinese patent with the publication number CN102911625A discloses a thermoplastic spacer and a preparation method thereof. The thermoplastic spacer has good chemical adhesion between glass and normal temperature; The spacer strips have poor adhesion to silicone glue and are difficult to use for insulating glass warm edge strips
[0005] In summary, the current butyl hot melt adhesives used in insulating glass systems are all non-reactive hot melt adhesives, which have poor adhesion to glass under high temperature conditions, and poor adhesion to silicone adhesives on the other hand.

Method used

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  • Hot melt adhesive for hollow glass warm edge strip and preparation method of hot melt adhesive
  • Hot melt adhesive for hollow glass warm edge strip and preparation method of hot melt adhesive
  • Hot melt adhesive for hollow glass warm edge strip and preparation method of hot melt adhesive

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Effect test

preparation example Construction

[0070] The present invention provides a method for preparing hot melt adhesive for insulating glass warm edge strip described in the above technical solution, comprising the following steps:

[0071] Add butyl rubber, polyisobutylene mixture, polymer, and lubricant to a kneader at a temperature of 150°C to 180°C for blending and kneading for 10 to 60 minutes, and after cooling to 130°C to 150°C, add a silane coupling agent Knead and stir for 4 to 25 minutes, add auxiliary crosslinking agent and heat up to 170°C to 190°C and knead for 10 to 30 minutes, then cool down to 150°C to 180°C, add tackifier resin, filler, water absorbent, antioxidant, thixotropic agent, and continue kneading for 1 to 3 hours at a vacuum degree of 0.08-0.1 MPa and a temperature of 150°C to 180°C to obtain a hot melt adhesive for insulating glass warm edge strips.

[0072] In the present invention, the butyl rubber, polyisobutylene mixture, tackifying resin, polymer, auxiliary crosslinking agent, silane ...

Embodiment 1

[0081] Add butyl rubber, polyisobutylene, polymer, and lubricant to a kneader at 160°C for 30 minutes of blending and kneading. After cooling to 130°C, add silane coupling agent and knead for 5 minutes. The temperature of the agent is raised to 170°C and kneaded for 30 minutes, and then cooled to 150°C, followed by adding tackifying resin, filler, water absorbing agent, antioxidant, and thixotropic agent, and kneading is continued for 2 hours at a vacuum degree of 0.09MPa and a temperature of 170°C to obtain Hot-melt glue is used for insulating glass warm edge strips.

[0082] The amount and specific types of the above-mentioned raw materials are shown in Table 1.

[0083] Table 1 The amount of raw materials used in Embodiment 1 of the present invention and the specific type

[0084]

[0085]

Embodiment 2

[0087] Add butyl rubber, polyisobutylene, polymer, and lubricant to a kneader at 170°C for 15 minutes of blending and kneading. After cooling to 140°C, add silane coupling agent and knead for 10 minutes. The agent is heated to 170°C and kneaded for 20 minutes, then cooled to 160°C, and tackifying resin, filler, water-absorbing agent, antioxidant, and thixotropic agent are added in sequence, and kneading is continued for 1 hour at a vacuum degree of 0.09MPa and a temperature of 180°C to obtain Hot-melt glue is used for insulating glass warm edge strips.

[0088] The consumption and specific types of the above-mentioned raw materials are shown in Table 2.

[0089] Table 2 The used raw material consumption and concrete kind of the embodiment of the present invention 2

[0090]

[0091]

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Abstract

The invention provides a hot melt adhesive for a hollow glass warm edge strip. The hot melt adhesive is prepared from the following raw materials in parts by weight: 1-10 parts of butyl rubber; 25-50 parts by weight of a polyisobutylene mixture; 5-25 parts by weight of tackifying resin; 5-15 parts by weight of a polymer; 0.01-0.1 part by weight of an assistant cross-linking agent; 0.1-5 parts by weight of a silane coupling agent; 0.1-1 part by weight of a lubricant; 0.1-1 part by weight of an antioxidant; 15-50 parts by weight of a filler; 1-5 parts by weight of a water absorbent; and 5-25 parts by weight of a thixotropic agent. The polymer is selected from one or more of metallocene polyolefin, an amorphous alpha-olefin copolymer, a styrene block copolymer and an ethylene vinyl acetate copolymer. Compared with the prior art, the hot melt adhesive for the hollow glass warm edge strip, provided by the invention, adopts components with specific contents, realizes relatively good overall interaction, has excellent high-temperature adhesion with glass, and also has excellent adhesion with a silicone adhesive.

Description

technical field [0001] The invention relates to the technical field of polymer materials, and more specifically relates to a hot melt adhesive used for insulating glass warm edge strips and a preparation method thereof. Background technique [0002] Insulating glass, also known as insulating glass, is a special glass with dry gas space formed between two or more pieces of flat glass separated by a certain distance. Insulating glass has the characteristics of heat insulation, heat preservation, sound insulation, and anti-condensation, and is widely used in architectural decoration, energy-saving vehicles, and refrigeration equipment. [0003] There are many types of insulating glass edge sealing systems, mainly spacers (frames), sealants and molecular sieves. The spacer bar is between the two layers of glass, which plays the role of separating the glass plates, and seals the edges with sealant to make the glass bond together and prevent the gas in the layer from overflowing....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J123/20C09J123/22C09J123/08C09J157/02C09J11/06C09J11/04
CPCC09J123/20C09J11/06C09J11/04C08K2003/265C08L2205/025C08L2205/035C08L23/20C08L23/22C08L23/0853C08L57/02C08L93/04C08L45/00C08L45/02C08K13/04C08K7/26C08K3/26C08K5/1345C08K5/526C08K13/02
Inventor 李云龙王斌杰李峰峰陈有志刘明陶小乐何永富
Owner HANGZHOU ZHIJIANG NEW MATERIAL CO LTD