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CN-121991598-A - Low-resistant Wen Fanghua adhesive material and preparation method and application thereof

CN121991598ACN 121991598 ACN121991598 ACN 121991598ACN-121991598-A

Abstract

The invention relates to a low-Wen Fanghua-resistant adhesive material, a preparation method and application thereof, wherein the anti-slip adhesive material comprises a modified HDPE substrate layer and an acrylic pressure-sensitive adhesive layer coated on the substrate layer, the substrate layer comprises HDPE resin, POE elastomer, methyl vinyl silicone rubber, a compatilizer and a peroxide cross-linking agent, and the adhesive layer comprises a soft monomer, a hard monomer, a macromolecular monomer containing a polybutadiene chain segment, a functional monomer, a cold-resistant plasticizer, an initiator and a cross-linking agent. The anti-skid adhesive material provided by the invention can still keep high adhesiveness at a low temperature of-40 ℃, and has good base material performance and excellent anti-skid performance.

Inventors

  • SUN ZHENGJIANG
  • WU MAN

Assignees

  • 昆山玉寰包装材料有限公司

Dates

Publication Date
20260508
Application Date
20260305

Claims (10)

  1. 1. A low Wen Fanghua-resistant adhesive material comprising a modified HDPE substrate layer and an acrylate pressure sensitive adhesive layer coated on the substrate layer, wherein: the modified HDPE substrate layer is prepared from a blend comprising, by weight, 70-90 parts of HDPE resin, 5-15 parts of POE elastomer, 1-5 parts of methyl vinyl silicone rubber, 2-8 parts of compatilizer and 1-3 parts of peroxide crosslinking agent; The acrylic pressure-sensitive adhesive layer is prepared by polymerization of 60-80 parts by weight of soft monomer, 5-20 parts by weight of macromolecular monomer containing polybutadiene chain segment, 5-15 parts by weight of hard monomer, 1-5 parts by weight of functional monomer, 3-8 parts by weight of cold-resistant plasticizer, 0.1-0.5 part by weight of initiator and 0.2-1.0 part by weight of cross-linking agent.
  2. 2. The low-Wen Fanghua resistant adhesive material according to claim 1, wherein the HDPE resin has a melt index of 0.5-10.5g/10min and a density of 0.95-0.97g/cm 3 ; The compatilizer is selected from maleic anhydride grafted polyethylene; the peroxide crosslinking agent is selected from dicumyl peroxide and di-tert-butyl diisopropylbenzene peroxide.
  3. 3. The low-Wen Fanghua-resistant adhesive material according to claim 1, wherein the modified HDPE base material layer is prepared by premixing the components in a high-speed mixer in proportion, melt blending by a double-screw extruder, granulating, press-forming the granules by a flat vulcanizing machine, controlling the thickness and rolling for later use.
  4. 4. The low Wen Fanghua resistant adhesive material according to claim 1, wherein the macromer containing polybutadiene segments is a maleate derivative of hydrogenated hydroxyl-terminated polybutadiene having a number average molecular weight of 2000-5000, and is prepared by introducing polymerizable double bonds at the end of the hydroxyl-terminated polybutadiene chain.
  5. 5. The low Wen Fanghua resistant adhesive material according to claim 1 wherein the soft monomer is selected from one or both of isooctyl acrylate and butyl acrylate; The hard monomer is selected from one or more of methyl methacrylate, acrylonitrile and styrene.
  6. 6. The low-Wen Fanghua-resistant adhesive material according to claim 1, wherein the functional monomer is one or two selected from acrylic acid and hydroxyethyl methacrylate; The cold-resistant plasticizer is dioctyl adipate or dioctyl sebacate.
  7. 7. The low Wen Fanghua resistant adhesive material according to claim 1 wherein the cross-linking agent is aluminum acetylacetonate or isocyanate; The initiator is azobisisobutyronitrile.
  8. 8. The low-Wen Fanghua-resistant adhesive material according to claim 1, wherein the adhesive is prepared by the following method: (1) The synthesis of acrylate prepolymer includes adding soft monomer, hard monomer, functional monomer, macromolecular monomer containing polybutadiene chain segment and partial initiator into reaction kettle, adding solvent, and reacting at 70-85 deg.c for 3-6 hr to obtain acrylate prepolymer; (2) And cooling the prepared acrylic ester prepolymer to below 40 ℃, adding the cold-resistant plasticizer, the rest initiator and the cross-linking agent, and uniformly stirring to obtain the adhesive.
  9. 9. The method for preparing the low Wen Fanghua resistant adhesive material according to any one of claims 1 to 8, comprising the steps of: (1) Coating an adhesive on the release film, then laminating with a substrate layer, shaping and rolling to obtain a semi-finished coiled material; (2) Unreeling the semi-finished product, enabling the substrate to face upwards, coating the adhesive on the surface, and then enabling the pressure-sensitive adhesive to be surface-dried through a first section of drying channel; (3) On the pre-cured pressure-sensitive adhesive layer, hot-pressing and compounding the pre-manufactured wear-resistant sand surface layer, then entering a second section drying tunnel, and reinforcing and compounding through a pressure roller; (4) After cooling, rolling, and obtaining a final product after stable performance; The thickness of the substrate layer is 0.1-0.5 mm, and the thickness of the adhesive layer is 0.1-0.6 mm.
  10. 10. The use of a low temperature resistant anti-slip adhesive material according to claim 1, wherein the anti-slip adhesive material is used as an anti-slip tape.

Description

Low-resistant Wen Fanghua adhesive material and preparation method and application thereof Technical Field The invention belongs to the field of adhesive materials (C09J), and particularly relates to a low-Wen Fanghua-resistant adhesive material, a preparation method and application thereof. Background The thermoplastic polyolefin waterproof material is a sheet waterproof material which takes thermoplastic polyolefin polymer as a base material and can be subjected to hot melt welding/hot processing, and has wide application in the building waterproof field. The pressure-sensitive anti-slip adhesive tape is a functional adhesive tape with particles or special textures on the surface for increasing friction force and preventing slipping, however, the common pressure-sensitive anti-slip adhesive tape faces serious performance challenges in the scenes of outdoor operation in winter in cold areas or cold chain logistics and the like. The adhesive tape in the prior art has the common problems that the movement of chain segments of the adhesive tape base material is blocked at the low temperature below minus 20 ℃, the material becomes brittle and is easy to crack when being bent, the pressure sensitive adhesive loses viscoelasticity at the low temperature due to higher glass transition temperature, the surface of an adherend cannot be wetted, the adhesive failure, the adhesive tape falling off and the like are caused. To solve the above problems, the prior art attempts to lower the glass transition temperature of the adhesive by adding a plasticizer, but excessive plasticizer causes the cohesive strength of the adhesive layer to be lowered at normal temperature, and the holding viscosity is insufficient. There have also been studies to improve low temperature properties by introducing a rubber component-modified pressure-sensitive adhesive, but phase separation is liable to occur due to poor compatibility, affecting adhesion reliability. For the substrate modification aspect, for example, the substrate made of HDPE material of thermoplastic polyolefin, the low-temperature toughness can be improved by simply adding an elastomer such as POE, but the compatibility between the elastomer and the HDPE is limited, and the problem of interface bonding between a polar adhesive and a nonpolar substrate cannot be solved. Therefore, it is of great importance to develop an adhesive tape capable of maintaining excellent adhesion, substrate flexibility and anti-slip properties in an ultra-low temperature environment of-40 ℃ and below. Disclosure of Invention The invention aims to solve the problems and provide a low-Wen Fanghua-resistant adhesive material, a preparation method and application thereof, wherein the adhesive tape can still keep high adhesiveness at a low temperature of-40 ℃, and the thermoplastic polyolefin substrate is flexible and has excellent anti-skid performance. The aim of the invention is achieved by the following technical scheme: A low Wen Fanghua-resistant adhesive material comprising a modified HDPE substrate layer and an acrylate pressure sensitive adhesive layer coated on the substrate layer, wherein: the modified HDPE substrate layer is prepared from a blend comprising, by weight, 70-90 parts of HDPE resin, 5-15 parts of POE elastomer, 1-5 parts of methyl vinyl silicone rubber, 2-8 parts of compatilizer and 1-3 parts of peroxide crosslinking agent; The acrylic pressure-sensitive adhesive layer is prepared by polymerization of 60-80 parts by weight of soft monomer, 5-20 parts by weight of macromolecular monomer containing polybutadiene chain segment, 5-15 parts by weight of hard monomer, 1-5 parts by weight of functional monomer, 3-8 parts by weight of cold-resistant plasticizer, 0.1-0.5 part by weight of initiator and 0.2-1.0 part by weight of cross-linking agent. Further, the HDPE resin has a melt index of 0.5-10.5g/10min, a density of 0.95-0.97g/cm 3, a tensile yield strength of more than or equal to 20MPa, and an elongation at break of more than or equal to 280%; The compatilizer is selected from maleic anhydride grafted polyethylene; the peroxide crosslinking agent is selected from dicumyl peroxide and di-tert-butyl diisopropylbenzene peroxide. The modified HDPE substrate layer is prepared by premixing the components in a high-speed mixer in proportion, carrying out melt blending and granulation in a specific temperature range through a double-screw extruder, carrying out compression molding on granules through a flat vulcanizing machine, controlling the thickness and rolling for standby. Further, the macromer containing polybutadiene chain segment is a maleate derivative of hydrogenated hydroxyl-terminated polybutadiene, the number average molecular weight of which is 2000-5000, and is prepared by introducing polymerizable double bonds at the chain ends of the hydroxyl-terminated polybutadiene. Further, the soft monomer is selected from one or two of isooctyl acrylate and butyl acrylate; The har