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Hot-melt pressure-sensitive adhesive for viscosity modification of SBS asphalt waterproof coiled materials

A technology of bituminous waterproofing membrane and hot melt pressure sensitive adhesive, applied in the direction of adhesive, adhesive type, mineral oil hydrocarbon copolymer adhesive, etc. and other problems, to achieve the effect of good water impermeability, strong industrial application value and development prospects, and good heat resistance

Active Publication Date: 2019-12-20
RUGAO JIAHAO HOT MELT ADHESIVE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, there are still some problems in the SBS modified asphalt waterproofing membrane in the prior art, such as (1) lack of heat resistance, it will soften and flow when placed at high temperature for a long time, and is not suitable for use in the south; (2) poor flexibility at low temperature, When the temperature is lower than 0°C, the product is easy to harden and cracks, which is not conducive to storage and transportation, and does not meet the actual use requirements; (3) the peel strength is insufficient, and it cannot be well bonded to concrete or substrates during use. knot, need a lot of use to meet the construction requirements

Method used

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  • Hot-melt pressure-sensitive adhesive for viscosity modification of SBS asphalt waterproof coiled materials

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preparation example Construction

[0070] A second aspect of the present invention provides a method for preparing a hot-melt pressure-sensitive adhesive, comprising the following steps:

[0071] Step 1: adding petroleum resin and polyolefin resin into a stirring tank, stirring at a temperature of 150-160° C. for 40-50 minutes to obtain a mixture A;

[0072] Step 2: After heating the mixture A obtained in step 1 to 180-190° C., adding parts of SBS thermoplastic elastomer and SIS thermoplastic elastomer, stirring for 1-3 hours to obtain mixture B;

[0073] Step 3: After grinding the mixture B obtained in Step 2 through a colloid mill, at a temperature of 140-150° C., in parts by weight, stir and add antioxidant, plasticizer, and ultraviolet absorber, and stir for 30-50 minutes, that is A hot melt pressure sensitive adhesive is obtained.

[0074] In a preferred embodiment, the preparation method of the hot-melt pressure-sensitive adhesive comprises the following steps:

[0075] Step 1: adding petroleum resin an...

Embodiment 1

[0081] Embodiment 1 of the present invention provides a hot-melt pressure-sensitive adhesive, comprising, in parts by weight: 15 parts of SBS thermoplastic elastomer, 10 parts of SIS thermoplastic elastomer, 8 parts of polyolefin resin, 15 parts of petroleum resin, plasticizer 10 parts, 1.5 parts of antioxidant, 1.5 parts of ultraviolet absorber.

[0082] The SBS thermoplastic elastomer is an SBS thermoplastic elastomer with a Shore hardness of 85.

[0083] The SIS thermoplastic elastomer is a SIS thermoplastic elastomer with a Shore hardness of 40.

[0084] The polyolefin resin is polyethylene wax; the petroleum resin is C5 resin; the plasticizer is naphthenic oil; the weight ratio of the petroleum resin, polyolefin resin and plasticizer is 1:0.53:0.67 .

[0085] The antioxidant is antioxidant 1010; the ultraviolet absorber is UV-326.

[0086] The preparation method of the hot-melt pressure-sensitive adhesive is as follows:

[0087] Step 1: adding petroleum resin and poly...

Embodiment 2

[0091] Embodiment 2 of the present invention provides a hot-melt pressure-sensitive adhesive, comprising, in parts by weight: 14 parts of SBS thermoplastic elastomer, 9 parts of SIS thermoplastic elastomer, 7 parts of polyolefin resin, 14 parts of petroleum resin, plasticizer 9 parts, 1 part antioxidant, 1 part UV absorber.

[0092] The SBS thermoplastic elastomer is an SBS thermoplastic elastomer with a Shore hardness of 85.

[0093] The SIS thermoplastic elastomer is a SIS thermoplastic elastomer with a Shore hardness of 40.

[0094] The polyolefin resin is polyethylene wax; the petroleum resin is carbon five resin; and the plasticizer is naphthenic oil.

[0095] The antioxidant is antioxidant 1010; the ultraviolet absorber is UV-326.

[0096] The preparation method of the hot-melt pressure-sensitive adhesive is the same as in Example 1.

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Abstract

The invention discloses a hot-melt pressure-sensitive adhesive for viscosity modification of SBS asphalt waterproof coiled materials. The hot-melt pressure-sensitive adhesive is prepared from the following components in parts by weight: 14 to 16 parts of SBS thermoplastic elastomer, 9 to 11 parts of SIS thermoplastic elastomer, 7 to 9 parts of polyolefin resin, 14 to 16 parts of petroleum resin, 9to 11 parts of a plasticizer, 1 to 2 parts of an antioxidant and 1 to 2 parts of an ultraviolet light absorber. Experimental test results show that the SBS asphalt waterproof coiled materials prepared from the hot-melt pressure-sensitive adhesive have good heat resistance, low-temperature flexibility and joint peeling strength which are far higher than performance indexes of grade II (-25 DEG C)in GB 18242-2008 <Styrene butadiene styrene(SBS) modified bituminous sheet materials>. In addition, the SBS asphalt waterproof coiled materials prepared from the hot-melt pressure-sensitive adhesive provided by the invention also have good water impermeability, aging resistance and persistent viscosity, and have very strong industrial application value and development prospect.

Description

technical field [0001] The invention relates to the technical field of waterproof materials, in particular to a hot-melt pressure-sensitive adhesive used for viscosity modification of SBS asphalt waterproof coiled materials. Background technique [0002] SBS modified bitumen waterproof membrane is made of polyester felt or glass fiber felt as the base material, SBS rubber modified petroleum asphalt as the coating material, and both sides are pasted with decorative materials and isolation materials. SBS modified bitumen waterproofing membrane is widely used in the field of waterproofing materials due to its good puncture resistance, excellent tensile strength and chemical stability. [0003] However, there are still some problems in the SBS modified asphalt waterproofing membrane in the prior art, such as (1) lack of heat resistance, it will soften and flow when placed at high temperature for a long time, and is not suitable for use in the south; (2) poor flexibility at low t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J153/02C09J157/02C09J123/06
CPCC08L2201/08C08L2205/025C08L2205/035C08L2207/04C09J153/02C09J157/02C08L53/02C08L23/06C08L57/02
Inventor 王文敏史博特
Owner RUGAO JIAHAO HOT MELT ADHESIVE
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