LIST
FEGURÐ OG VELLÍÐAN
HANDVERK
MENNING OG SAGA
SKEMMTUN
UMHVERFI
MATUR OG DRYKKUR
ÖFUGVERKFRÆÐI
VÍSINDI
ÍÞRÓTTIR
TÆKNI
KLÆÐANLEG TÆKNI
Plasticised PVC (Plastisol)
Charlie

Búin til af

Charlie

22. september 2026DE
1
0
0
0
0

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.
Byrjandi
2 hours

Leiðbeiningar

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.

Nauðsynleg verkfæri:

BorðofnBorðofn
Hitamælir með nema sem situr íHitamælir með nema sem situr í
N95-öndunargrímaN95-öndunargríma
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.

Efni fyrir þetta skref:

PlastísólPlastísól150 ml

Nauðsynleg verkfæri:

HrærusprotiHrærusproti
3

Spread three films

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

Efni fyrir þetta skref:

PlastísólPlastísól50 ml

Nauðsynleg verkfæri:

KísilbökunarmottaKísilbökunarmotta
MálningarhnífasettMálningarhnífasett
StálreglustikaStálreglustika
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.

Nauðsynleg verkfæri:

BorðofnBorðofn
Innrauður hitamælirInnrauður hitamælir
SuðuhanskarSuðuhanskar
5

Cool and cut strips

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

Nauðsynleg verkfæri:

DúkahnífurDúkahnífur
StálreglustikaStálreglustika
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.

Nauðsynleg verkfæri:

Kraftmælir (gormvog)Kraftmælir (gormvog)
SkrúfstykkiSkrúfstykki
Tær öryggisglerauguTær öryggisgleraugu
7

Recipe, cure curve, siblings

Hleð Jupyter-vinnubók…
8

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.

Efni

1

Nauðsynleg verkfæri

13

Tengd Blueprint

Þessi blueprint deila þekkingu — tækni, efni eða meginreglur

Neoprene

Neoprene

eftir TexFO

Saumur

1
0
0
0
0
0

CC0 opinbert ríki

Þessi teikning er gefin út undir CC0. Þér er frjálst að afrita, breyta, dreifa og nota þetta verk í hvaða tilgangi sem er, án þess að biðja um leyfi.

Studdu smiðinn með því að kaupa vörur í gegnum teikningu hans þar sem hann fær þóknun smiða sem seljendur ákvarða, eða búðu til nýja endurskoðun á þessari teikningu og tengdu hana sem tengingu í þinni eigin teikningu til að deila tekjum.

Umræða

(0)

Skrá inn til að taka þátt í umræðunni

Hleður athugasemdum...