Multiple graft adhesive with controllable graft degree and preparation method thereof

An adhesive and grafting degree technology, applied in the direction of grafted polymer adhesives, adhesives, adhesive types, etc., can solve the problem of high quality requirements of grafted rubber and elastomers, complex grafting process, and complex bonding process. and other problems, to achieve the effect of good bonding performance, simple bonding method and convenient use.

Active Publication Date: 2021-02-05
NANJING CHENGYOU RESINS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And a one-step grafting method is adopted to solve the problem of complex grafting process of SBS-chloroprene rubber diversified grafting adhesive and high quality requirements for grafted rubber and elastomer
Especially to solve the problems of low bonding strength and complex bonding process (surface polarization treatment) of existing polyolefin materials

Method used

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  • Multiple graft adhesive with controllable graft degree and preparation method thereof
  • Multiple graft adhesive with controllable graft degree and preparation method thereof
  • Multiple graft adhesive with controllable graft degree and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Raw material formula: (parts by weight)

[0052] Toluene (TOL) 38.49

[0053] Ethyl acetate (EAC) 1.45

[0054] Solvent oil (120#) 18.15

[0055] Neoprene (SN242A) 1.27

[0056] SBS (S / B=40 / 60) 17.43

[0057] Phenolic resin (2402) (hydroxyl value: 7.5~11.5, softening point: ≥100) 2.90

[0058] Methyl methacrylate (MMA) 6.54

[0059] Butyl acrylate (BA) 1.31

[0060] Acrylic acid (AA) 0.17

[0061] Hydroxyethyl Acrylate (HEA) 0.36

[0062] Maleic anhydride 0.2

[0063] Dibenzoyl peroxide (BPO) 0.084

[0064] Inhibitor (1010) 0.29

[0065] Terpene phenolic resin 2.11

[0066] C9 resin 9.8.

[0067] Preparation method: (one-step grafting process)

[0068] In a 1000ML three-necked flask with a stirrer and a condenser, add toluene (TOL), solvent naphtha (120#), ethyl acetate (EAC) according to the above parts to start stirring, add neoprene, SBS, and heat the water to 40 ℃, stir for 1 hour, after the neoprene and SBS dissolve, the temperature reaches 50-55℃, ad...

Embodiment 2

[0084] Embodiment 2 (adopting one-step grafting process)

[0085] The SBS-chloroprene rubber viscosity graft adhesive prepared in Example 2 has the same raw material formula as that in Example 1, the difference is that the phenolic resin (2402) is not involved in the grafting reaction process but is added later, which only plays a role in grafting. For the role of tackifier, the input amount of the initiator needs to be significantly increased, otherwise the grafting reaction is difficult to realize, and the grafting reaction:

[0086] Raw material formula: (parts by weight)

[0087] Toluene (TOL) 38.49

[0088] Ethyl acetate (EAC) 1.45

[0089] Solvent oil (120#) 18.15

[0090] Neoprene (SN242A) 1.27

[0091] SBS (S / B=40 / 60) 17.43

[0092] Methyl methacrylate (MMA) 6.54

[0093] Butyl acrylate (BA) 1.31

[0094] Acrylic acid (AA) 0.17

[0095] Hydroxyethyl Acrylate (HEA) 0.36

[0096] Dibenzoyl peroxide (BPO) 0.097

[0097] Inhibitor (1010) 0.29

[0098] Terpene ph...

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Abstract

The invention discloses a diversely grafting adhesive with a controllable grafting degree and a preparation method thereof. Preparation of the diversely grafting adhesives with high viscosity and lowsolid content and the diversely grafting adhesives with low viscosity and high solid content are effectively controlled by utilizing grafting of chloroprene rubber, SBS and acrylate monomers, utilizing adhesion and separation of phenolic resin to chloroprene rubber and SBS and the resin properties of the phenolic resin, utilizing induction effect and conjugation effect and using a one-step grafting process. SBS, chlorobutyl rubber and acrylate resin are organically combined, and the obtained adhesive has high cohesion strength, wide bonding range and strong weather resistance, is applicable tobonding of polar materials, non-polar materials, high-foam materials, low-foam materials, porous materials and dense materials, and is especially suitable for compound fields of footwear and leather.

Description

technical field [0001] The invention relates to a multiple graft adhesive with controllable grafting degree and a preparation method thereof. Background technique [0002] Polyolefin is one of the main varieties of polymer materials. It is a commonly used engineering plastic. It has the characteristics of high strength, corrosion resistance, and light weight. It is widely used in various industries. The research on polyhydrocarbon materials, especially for footwear, sports equipment, luggage composites has always been a topic of concern at home and abroad. Chloroprene rubber is a high molecular polymer of chloroprene monomer, which has good crystallinity, regular structure and polar chlorine atoms in the molecular chain, high cohesive strength, flame resistance and aging resistance. However, domestic chloroprene rubber has poor crystallinity and serious branching. Either it is not easy to graft, or it is difficult to control during the grafting process. Its graft adhesive...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J151/04C09J151/00C09J151/08C09J11/08C09J161/06C08F287/00C08F283/00C08F279/02
CPCC08F279/02C08F283/00C08F287/00C08L2205/03C08L2205/035C09J11/08C09J151/006C09J151/04C09J151/08C08L51/00C08L51/08C08L45/00C08L57/02C08L61/06C08F220/14
Inventor 林学海常以涛吴潇
Owner NANJING CHENGYOU RESINS CO LTD
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