[GARY®]Identification methods of common engineering plastics

As a manufacturer with 25 years of acrylic production experience, Xishun company not only provides customers with professional acrylic product solutions, but also provides customers with some small knowledge and methods. The purpose is to help our customers achieve their goals. Below, we will introduce some common engineering plastics identification methods.

 

 Identification methods of common engineering plastics

No.

English name

Chinese name

Performance characteristics

Identification reference method

1

POM

Polyoxymethylene

It has good toughness, surface rigidity and self lubrication;Wear resistance, corrosion resistance, strong weather resistance, etc;But the product after molding is easy to produce flow lines. When the material dissolves and forms, it produces pungent smell;When burning, there is a transparent flame, blue on the top and yellow on the bottom.

2

PA(NYLON)

Nylon

It has good toughness, high impact strength, corrosion resistance, strong weather resistance and good processing performance;The disadvantage is that the formed product is easy to be dehydrated and brittle, and needs to be boiled. When burning, it has yellow flame, bubbles, white smoke after blowing out, and the smell of hair burning.

3

PC

Polycarbonate

Good toughness and high strength;The product is glossy and transparent. When it burns, it bubbles, when it leaves the fire, it goes out, and it smokes white.

4

ABS

Highly non crumbling

It is composed of acrylonitrile (a) + butadiene (b) + styrene(S) The chemical composition of the compound;It’s hard and impact resistant, with metallic sound when landing. When burning, yellow flame, black smoke, black smoke after blowing out.

5

PP

Polypropylene

The material is soft hard and with good toughness;The effect of making pockmarked products is good When burning, it has a yellow flame, yellow on the top and blue on the bottom, slightly bubbling, and white smoke with the smell of candle after blowing out.

6

PE

 

Polyethylene

HDPE: high density (low pressure), hard material;LDPE: low density (high pressure), soft material;The two can be matched into different hardness, the product surface is smooth Blue flame when burning, blow out, and mark with nail.

7

PVC

Polyvinyl chloride

Flexibility and cold resistance;Corrosion resistance, good processability. Burn a yellow flame and extinguish it when you leave the fire

8

PU

 

Polyurethane

It has high elasticity;Good toughness;Cold resistance and corrosion resistance;Wear resistance and traction resistance;The surface of the product is bright. When burning, yellow flame, white smoke, from the fire is out.

9

PS

Polystyrene

IPS: original polystyrene, transparent, but brittle;Hips: modified ppb, opaque, good toughness When burning, it has yellow flame, black smoke and black powder.

10

EVA

Polyacetate

The material is soft and elastic. When burning, it has yellow flame, slightly blue background, white smoke and bubbles.

11

PMMA

Acrylic

 Transparent material, good strength, not fragile. When burning, it has a yellow flame and a sour smell when black smoke decomposes.

12

TPR

Rubber

Soft material, good elasticity, good gloss, sticky. There is a yellow flame when burning.

13

AS

Acrylonitrile (a) + styrene (s)

 Transparent material, good strength, not fragile. It shrinks in case of fire, does not burn and emits a little white smoke.

14

PBT

Poly (tetramethylene terephthalate)

ester

 Elastic, opaque, abrasion resistant Slow burning, slow burning, remove the fire source to extinguish, the flame tip is blue, melting and falling, special flavor

15

PSU

Polysulfone

High hardness and impact strength, non-toxic, heat and cold resistance, good aging resistance, can be used for a long time at – 100-175 degrees When burning, it is flammable, with sulfur smell, yellow black smoke, charring and flashing

 


Post time: Jun-02-2021