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Plasticised PVC (Plastisol)
Charlie

Imeundwa na

Charlie

22. Septemba 2026DE
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Plasticised PVC (Plastisol)

PVC was known for decades as a hard, brittle powder nobody could use. In 1926 Waldo Semon at B.F. Goodrich found that certain liquids dissolve it only when hot, and that the hot solution sets on cooling into a soft, rubber-like gel - flexible PVC. **US 1,929,453**, "Synthetic rubber-like composition and method of making same", Semon, assigned to B.F. Goodrich, granted 10. October 1933, claims dissolving "an insoluble polymerized vinyl halide at an elevated temperature" in a liquid that dissolves it only well above room temperature, and gelling it by cooling. One example: 8 parts PVC, 8 parts tricresyl phosphate, 3 parts dibutyl phthalate. **Plastisol is that idea in a bottle**: PVC grains suspended, undissolved, in plasticiser. Heat makes the liquid dissolve the grains and fuse into solid flexible PVC. You bake test films at three temperatures and pull them apart to find where it truly fuses.
Mwanzo
2 hours

Maagizo

1

Ventilate and set the oven

Use a toaster oven kept for crafts, never food, by an open window. Put the probe thermometer inside - dial settings are rarely accurate.

Zana zinazohitajika:

Oveni ndogo ya mezaniOveni ndogo ya mezani
Kipima joto chenye kijiti kinachobaki ndaniKipima joto chenye kijiti kinachobaki ndani
Barakoa ya kupumua N95Barakoa ya kupumua N95
2

Stir the plastisol

The PVC grains settle. Stir the plastisol from the bottom for 2 minutes until even. Read the label's fusion temperature.

Vifaa kwa hatua hii:

PlastisoliPlastisoli150 ml

Zana zinazohitajika:

Fimbo ya KukorogaFimbo ya Kukoroga
3

Spread three films

On the silicone mat, spread three 100 x 40 mm films about 1.5 mm thick with the palette knife.

Vifaa kwa hatua hii:

PlastisoliPlastisoli50 ml

Zana zinazohitajika:

Mkeka wa silikoni wa kuokeaMkeka wa silikoni wa kuokea
Seti ya visu vya rangiSeti ya visu vya rangi
Rula ya chumaRula ya chuma
4

Bake at three temperatures

Bake one film 10 minutes each at 130 °C, 150 °C and the label's fusion temperature (commonly 160–180 °C). Never exceed the label maximum.

Zana zinazohitajika:

Oveni ndogo ya mezaniOveni ndogo ya mezani
Kipimajoto cha infraredKipimajoto cha infrared
Glavu za kulehemuGlavu za kulehemu
5

Cool and cut strips

Cool 10 minutes. Peel each film and cut a 10 mm strip from its centre. Mark its temperature.

Zana zinazohitajika:

Kisu cha kaziKisu cha kazi
Rula ya chumaRula ya chuma
6

Stretch and pull

Clamp one end in the vise. Hook the spring scale to the other and pull slowly. Record the peak force and how it failed.

Zana zinazohitajika:

Kipima-nguvu (mizani ya springi)Kipima-nguvu (mizani ya springi)
Kibano cha meza ya kaziKibano cha meza ya kazi
Miwani ya usalama iliyo waziMiwani ya usalama iliyo wazi
7

Recipe, cure curve, siblings

Inapakia daftari la Jupyter…
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History & Context

**What the patent specifies:** gelling PVC in high-boiling liquids such as tricresyl phosphate and dibutyl phthalate. **Modern build (derived):** a commercial plastisol; many now use phthalate-free plasticisers. Flexible PVC became cable insulation, shower curtains, hoses and flooring. Its limits: the plasticiser slowly migrates out, so old soft PVC stiffens and turns sticky; and overheated PVC yellows and releases hydrogen chloride, which is why the label's maximum temperature matters.

Vifaa

1
  • 23
    Plastisoli
    200 ml
    Kishikilia Nafasi

Zana Zinazohitajika

13

Blueprint zinazohusiana

Blueprint hizi zinashiriki maarifa — mbinu, vifaa au kanuni

Neoprene

Neoprene

na TexFO

Kushona

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