Polymer adhesive formulations

Formula 1

Polyamide (nylon Zytel 61 ) 3493

Epoxy resin ( Dow DER331 ) 1743

Dicyandiamide    53

Ethanol 5216

MEK yellow dye      3

Polyamide powder (nylon Zytel33 , 80 mesh) 71

Preparation method

The soluble polyamide obtained by reacting hexamethylene diamine adipic acid ester and hexamethylene diamine azelate with caprolactam is mixed with water (or ethanol) to obtain nylon Zytel 61 . DOW DER331 is a polyglyceryl ether of bisphenol A with a molar mass of 186 to 192 . The nylon zytel33 is a 6-6 nylon which can be obtained by reacting hexamethylene diamine and adipic acid.

Formula 2

Group A : Diglycerol ether of bisphenol A ( Epikote 828 )   100

Group B : Modified Aliphatic Amines ( EpiuyeT )     10

Polyamide curing agent ( versamidl25 ) 86

Group A is a resin, and Group B is a curing agent.

Preparation method

First, the B group was mixed uniformly, and then the B group was added to the A group to mix.

Suitable for sealing cable interfaces.

Recipe 3

Complex of boron trifluoride and ether (including boron trifluoride 48 %)   7.5

Triethylamine    5.75

Polyethylene glycol (molar mass about 600 ) 37

Preparation method

After the materials are mixed, triethylamine can be substituted for diethyl ether to form a complex of boron trifluoride and triethylamine. Suitable for bonding textiles with urethane polymers.

Formula 4

Diphenylmethane diisocyanate 30

Silicone Rubber    70

The composition of silicone rubber is: Hydroxyl Dimethicone (value = "25" unitname = "degrees Centigrade"> 25 °C viscosity is 4000 cps)     100

Silica (treated with trimethylsilane)