Ndedzipi shanduko dzinogona kukanganisa viscosity yeanopisa melt adhesives?

Tinoziva kuti iyopur inopisa nyungudika namira bonding object actually penetrates into the object to be bonded and combines with its molecular structure to destroy the surface layer of the object, thereby firmly bonding the two objects. So we can increase the stickiness of pur inopisa nyungudika namira by changing something?

1. Surfacetreatment

Kune mamwe marara eoksayidi (senge ngura), chrome-yakafukidzwa nhete, phosphating layer uye moldrelease mumiriri pamusoro pechinhu chinofanira kutevedzwa. Iyo "weakboundary dura" inokanganisa zvakananga simba rekubatanidza. Iyo oxide yakaturikidzana pamusoro pevhu inorapwa kutanga kugadzirisa simba rekubatanidza.

2. Kuvandudza kukwirisa

The roughening process of the surface of the bonded object can also affect the adhesion. If the object is too smooth, the pur inopisa nyungudika namira can penetrate less molecules, thereby reducing the bonding strength. Therefore, we can also increase the bonding strength of the hot melt adhesive by increasing the surface roughness of the bonded object.

3. Adhesivelayer ukobvu

Iyo mukobvu yeglue yakaturikidzana zviri nyore kuburitsa matubvu, izvo zvinokonzeresa kukanganisa kana kutanga kuputsa. Naizvozvo, isu tinokwanisa kuita iyo glue seyakaonda sezvinobvira, kuti tiwane yakakwira yekubatanidza simba. Uye zvakare, iko kupisa kwekushisa kweiyo gobvu yekunamatira yakaturikidzana mushure mekupiswa kunoita kuti kupisa kwemhepo kuve kwakakonzeresa kuti nzvimbo yekubatanidza ive hombe. Izvo zvinonetsa kuwana themolecular kukuvara pamusoro pechisungo chesaiti, uye iko kwekubatana hakuzove kwakasimba.

4. kumanikidza

Kana uchibatanidza, isa kumanikidza pane iyo bonding pamusoro kuti iyo inopisa inonyungudika inonamira izadze maburi ari pachisungo chepamusoro, uye kunyange kuyerera mumakomba akadzika uye capillaries kuti udzikise bondingdefects. Naizvozvo, kumanikidza kwakakodzera panguva yekubatanidza kunogona kusimudzira iwo mamiriro echinhu chakabatanidzwa. Iyo gasi inopukunyuka, ichideredza iyo yekubatanidza nzvimbo yeiyo gomba uye kuwedzera iyo yekubatanidza kusimba.