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Electrical appliances

Electrical appliances, electronic conference table panel, usually according to the use of the environment choose different materials and different process, including heat, acid and alkali, wash resistant, scratch resistant, light, thermal expansion coefficient of correlation coefficient. Terephthalate (chloride PVC), PVC, Polyethylene (Polyvinyl PBTPC).

Main ingredients including poly (ethylene terephthalate pet and poly (butylene terephthalate) PBTPC sheet is a kind of amorphous, no odor, non-toxic, highly transparent colorless or slightly yellow thermoplastic engineering plastic, 0.25 mm thick and above to 5.0 thick plastic industry called sheet. Is a colorless and transparent non qualitative thermoplastic material good physical and mechanical properties.

 



2: impact resistance, tensile strength, bending strength, compressive strength is high; creep is small, size stability.

3: has good heat resistance up to 125 degrees and resistance to low temperature 45 degrees below zero and in a wide temperature range with stable mechanical properties, dimensional stability, electrical properties and flame resistance, can be used for a long time in -60~120 DEG C; no obvious melting point and 220-230 DEG C in a molten state; because of the rigidity of the molecular chain and the resin melt viscosity

4: small water absorption, small shrinkage, high dimensional accuracy, good dimensional stability, thin film permeability is small; belong to self extinguishing material;

5: stable to light. Not resistant to UV, good weather resistance; oil resistance, acid resistance, alkali resistance, oxidation of acids and amines, ketones, soluble in chlorinated hydrocarbons and aromatic solvents, long-term easily in water caused by hydrolysis and cracking, the disadvantage is due to poor anti fatigue intensity, prone to stress cracking, poor solvent resistance and wear resistance under

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Polyvinyl chloride (PVC), English abbreviation PVC (polyvinyl chloride), vinyl chloride monomer (vinyl chloride monomer (VCM) to peroxide, such as azo compound initiator; or in the role of light and heat by free radical polymerization reaction mechanism of polymerization of the polymer. Vinyl chloride and vinyl chloride copolymer are collectively referred to as vinyl chloride resin.

PVC free amorphous structure of white powder, smaller branching degree, relative density of about 1.4, glass transition temperature 77~90 DEG C, about 170 DEG C start decomposition [1], of light and heat on the stability of difference, in 100 DEG C or above the long time exposure to sunlight, it will decompose and produce hydrogen chloride and one step auto catalytic decomposition, causing discoloration, physical and mechanical properties is also rapidly declining. In practical application must be adding stabilizer to improve the stability to heat and light.

PET plate is the abbreviation for terephthalate Polyethylene, for short, PET board or PETP board. Polyethylene terephthalate, referred to as polyester plate.

. Polyethylene terephthalate and commonly known as polyester resin, commonly known as polyester resin. It is a polymer of polyethylene terephthalate and ethylene glycol, collectively referred to as thermoplastic polyester, or saturated with PBT. At present, PET and PBT are used as thermoplastic polyester to become one of the five major engineering plastics.

Main characteristics of PET board:

Mechanical strength, rigidity, high hardness. Sliding wear resistance and good strength, electrical insulation good, very good creep resistance, low and stable coefficient of friction, excellent abrasion resistance (compared with nylon better), very good dimensional stability is better than that of POM, physiological inert (suitable for contact with food). Weather resistance, chemical resistance stability good, bibulous rate is low, acid resistance and organic solvent. Not resistant to hot water immersion and not alkali resistant.

Main performance index of PET board:

Specific gravity 1.39g/cm3

Temperature resistance (continuous) 115 C

Temperature resistance (short time) 160 C

Linear thermal expansion coefficient (23-100) C 60x10-6 (m.k) m/

Combustion (UL94) HB

Water absorption rate (23 C water immersion for 24 hours) 6%

Bending tensile stress 90MPa

Tensile strain 15%

Tensile modulus of elasticity 3700MPa

Electrical appliances showing

    Electronic switch button panel
    Electronic switch button panel
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