Elastic type pressure sensitive adhesive has little environmental pollution and is widely used in various fields

Pressure-sensitive adhesive, short for pressure-sensitive adhesive, is a kind of adhesive with pressure sensitivity, mainly used for the preparation of pressure-sensitive tape, its role is to make the tape with pressure-sensitive adhesion characteristics.

Pressure-sensitive adhesive can be divided into rubber type and resin type according to the main resin composition. Rubber type can be divided into natural rubber and synthetic rubber; Resin type mainly includes acrylic acid, silicone, and polyurethane. Among them, rubber pressure sensitive adhesive, also known as elastic type pressure sensitive adhesive, is widely used in various fields because of its good bonding strength and small pollution to the environment. In the prior art, the temperature resistance of the rubber pressure-sensitive adhesive is poor. It has good performance at normal temperatures (20 ~ 30℃), but its performance will be significantly reduced at higher temperatures (above 80℃).

In view of the shortcomings of the existing technology, we aim to provide a liquid rubber-type temperature and pressure-sensitive adhesive and its preparation method, the pressure-sensitive adhesive still has good performance at high temperatures (more than 80℃).

In order to achieve the above purpose, the following technical solution is provided: composed of the following weight components: polymer: 30 ~ 50 viscosities: 0 ~ 40 plasticizer: 0 ~ 10 filler: 0 ~ 10 viscosity regulator: 0 ~ 10 antioxidant: 0 ~ 2 Vulcans: 0 ~ 2 solvents: 10 ~ 30; The polymer consists of the following weight components: liquid hydrogenated rubber: 30 ~ 50 parts of diol reagent: 10 ~ 30 parts of isocyanate reagent: 4 ~ 10 parts. As a further improvement: the diol reagent is: propylene glycol,2, 4-ethylenediamine -1, 6-diol,2, 5-dihydroxy-3-hexyne, 3-butene 1, 2-diol at least one.