{"id":1028,"date":"2026-07-01T14:22:37","date_gmt":"2026-07-01T06:22:37","guid":{"rendered":"https:\/\/bastone-petrochem.com\/?p=1028"},"modified":"2026-08-14T08:12:24","modified_gmt":"2026-08-14T00:12:24","slug":"acetal-copolymer-vs-polypropylene","status":"publish","type":"post","link":"https:\/\/bastone-petrochem.com\/ru\/acetal-copolymer-vs-polypropylene\/","title":{"rendered":"\u0421\u043e\u043f\u043e\u043b\u0438\u043c\u0435\u0440 \u0430\u0446\u0435\u0442\u0430\u043b\u044f \u043f\u0440\u043e\u0442\u0438\u0432 \u043f\u043e\u043b\u0438\u043f\u0440\u043e\u043f\u0438\u043b\u0435\u043d\u0430: \u0447\u0442\u043e \u043f\u043e\u0434\u0445\u043e\u0434\u0438\u0442 \u0434\u043b\u044f \u0432\u0430\u0448\u0435\u0439 \u0434\u0435\u0442\u0430\u043b\u0438?"},"content":{"rendered":"

Acetal copolymer (POM-C) and polypropylene (PP) both list a maximum service temperature near 100 \u00b0C. Yet under a 1.8 MPa load, POM-C holds its shape to about 110 \u00b0C while PP softens at roughly 55 \u00b0C \u2014 half the number.<\/p>\n\n\n\n

That gap is the whole comparison in miniature: the two materials look interchangeable on a one-line spec sheet and behave nothing alike once a part is doing work.<\/p>\n\n\n\n

\u0411\u043e\u043b\u044c\u0448\u0438\u043d\u0441\u0442\u0432\u043e \u044d\u043c\u043f\u0438\u0440\u0438\u0447\u0435\u0441\u043a\u0438\u0445 \u043f\u0440\u0430\u0432\u0438\u043b \u0432\u044b\u0431\u043e\u0440\u0430 \u0441\u0432\u043e\u0434\u044f\u0442\u0441\u044f \u043a \u201c\u0430\u0446\u0435\u0442\u0430\u043b\u044c \u0432\u044b\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0435\u0442 \u043d\u0430\u0433\u0440\u0443\u0437\u043a\u0443, \u041f\u041f \u2014 \u0441\u0442\u043e\u0438\u043c\u043e\u0441\u0442\u044c\u201d, \u0447\u0442\u043e \u043f\u043e \u0440\u0435\u0444\u043b\u0435\u043a\u0441\u0443 \u043d\u0430\u043f\u0440\u0430\u0432\u043b\u044f\u0435\u0442 \u0438\u043d\u0436\u0435\u043d\u0435\u0440\u043e\u0432 \u043a POM-C \u0434\u043b\u044f \u0432\u0441\u0435\u0433\u043e, \u0447\u0442\u043e \u0434\u0432\u0438\u0436\u0435\u0442\u0441\u044f. \u0420\u0435\u0430\u043b\u044c\u043d\u043e\u0435 \u0440\u0435\u0448\u0435\u043d\u0438\u0435 \u0437\u0430\u0432\u0438\u0441\u0438\u0442 \u043e\u0442 \u043e\u0434\u043d\u043e\u0433\u043e \u0433\u043b\u0430\u0432\u043d\u043e\u0433\u043e \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u0438\u044f.<\/p>\n\n\n\n

POM-C earns its premium when stiffness-under-load, surface wear, or tight dimensional tolerance rules the part. The moment the controlling factor becomes chemical resistance, weight, cost, or a flexing hinge, PP is the correct call \u2014 not a downgrade.<\/p>\n\n\n\n

Where POM-C Outperforms Polypropylene<\/h2>\n\n\n\n

POM-C wins on stiffness, friction, and creep \u2014 the properties that decide whether a moving or load-bearing part holds up, and the axes where PP cannot follow.<\/p>\n\n\n\n

Stiffness Under Load<\/h3>\n\n\n\n

\u041c\u043e\u0434\u0443\u043b\u044c \u0443\u043f\u0440\u0443\u0433\u043e\u0441\u0442\u0438 \u043f\u0440\u0438 \u0438\u0437\u0433\u0438\u0431\u0435 POM-C \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 \u043e\u043a\u043e\u043b\u043e 2,5\u20132,6 \u0413\u041f\u0430 (ASTM D790) \u043f\u0440\u043e\u0442\u0438\u0432 1,2\u20131,5 \u0413\u041f\u0430 \u0443 \u041f\u041f, \u043f\u043e\u044d\u0442\u043e\u043c\u0443 \u043d\u0435\u0430\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u0430\u044f \u0430\u0446\u0435\u0442\u0430\u043b\u044c\u043d\u0430\u044f \u0434\u0435\u0442\u0430\u043b\u044c \u043f\u0440\u0438\u043c\u0435\u0440\u043d\u043e \u0432\u0434\u0432\u043e\u0435 \u0436\u0451\u0441\u0442\u0447\u0435 \u043f\u0440\u0438 \u0442\u043e\u0439 \u0436\u0435 \u0442\u043e\u043b\u0449\u0438\u043d\u0435 \u0441\u0442\u0435\u043d\u043a\u0438.<\/p>\n\n\n\n

That stiffness is why a POM-C gear tooth or a snap-fit boss deflects less under the same force.<\/p>\n\n\n\n

Friction and Wear<\/h3>\n\n\n\n

POM-C is self-lubricating, with a dynamic coefficient of friction around 0.21, where PP runs higher and carries no self-lubrication.<\/p>\n\n\n\n

Pair two acetal gears, a cam, or a bushing and they slide cleanly dry; the same geometry in PP wears and squeals.<\/p>\n\n\n\n

\"\u0418\u0437\u043d\u043e\u0441<\/figure>\n\n\n\n

Creep Under Sustained Load<\/h3>\n\n\n\n

POM-C is among the most creep-resistant of the crystalline thermoplastics \u2014 under a sustained clamp load or a press-fit, it holds dimension.<\/p>\n\n\n\n

PP creeps and relaxes under the same load over time, so a tight fit goes loose. For any part governed by load, precision, or sliding wear \u2014 gears, bearings, cams, fasteners, conveyor components \u2014 POM-C is the right material and the premium buys real performance.<\/p>\n\n\n\n

Where Polypropylene Is the Right Material<\/h2>\n\n\n\n

PP beats POM-C on chemical resistance, weight, cost, and living-hinge fatigue \u2014 and on chemical contact it is the tougher material, not the budget substitute. These constraints govern most fluid-handling and high-volume parts.<\/p>\n\n\n\n

Chemical Resistance<\/h3>\n\n\n\n

POM-C resists solvents, fuels, oils, and weak acids, but it has poor resistance to strong acids and strong bases, and sustained hot-water service risks hydrolysis.<\/p>\n\n\n\n

PP shrugs off the strong acids and bases that attack acetal, which is why it dominates lab benches, chemical tanks, and semiconductor fluid handling. On a chemical-contact part, specifying POM-C over PP is the actual downgrade.<\/p>\n\n\n\n

Weight and Cost<\/h3>\n\n\n\n

\u041f\u041f \u0438\u043c\u0435\u0435\u0442 \u043f\u043b\u043e\u0442\u043d\u043e\u0441\u0442\u044c \u043e\u043a\u043e\u043b\u043e 0,905 \u0433\/\u0441\u043c\u00b3 \u043f\u0440\u043e\u0442\u0438\u0432 1,41 \u0443 POM-C \u2014 \u043f\u0440\u0438\u043c\u0435\u0440\u043d\u043e \u043d\u0430 36% \u043b\u0435\u0433\u0447\u0435.<\/p>\n\n\n\n

On a high-volume molded part, that density gap cuts both shipped mass and per-part material cost \u2014 PP is a commodity polyolefin<\/a> priced well below engineering-grade acetal.<\/p>\n\n\n\n

The Living Hinge<\/h3>\n\n\n\n

The living hinge belongs to PP alone. Acetal is not ductile enough for a 90-degree integral hinge beyond a few tens of flex cycles \u2014 it fatigues and cracks.<\/p>\n\n\n\n

\"\u0423\u0441\u0442\u0430\u043b\u043e\u0441\u0442\u044c<\/figure>\n\n\n\n

PP and PE own the integral hinge for any closure that opens repeatedly. If your part flexes at a built-in pivot, the material question is already answered.<\/p>\n\n\n\n

On the PP side, homopolymer polypropylene<\/a> is the stiffest PP family. Copolymer polypropylene<\/a> trades some rigidity for impact, and is the chain architecture behind PP-R pipe and living-hinge closures.<\/p>\n\n\n\n

Two POM-C vs PP Specs That Mislead<\/h2>\n\n\n\n

\u0414\u0432\u0430 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u044f \u0438\u0437 \u0442\u0435\u0445\u043d\u0438\u0447\u0435\u0441\u043a\u0438\u0445 \u043f\u0430\u0441\u043f\u043e\u0440\u0442\u043e\u0432 \u0432\u044b\u0437\u044b\u0432\u0430\u044e\u0442 \u0431\u043e\u043b\u044c\u0448\u0435 \u043e\u0448\u0438\u0431\u043e\u0447\u043d\u044b\u0445 \u0440\u0435\u0448\u0435\u043d\u0438\u0439 POM \u043f\u0440\u043e\u0442\u0438\u0432 \u041f\u041f, \u0447\u0435\u043c \u043b\u044e\u0431\u044b\u0435 \u0434\u0440\u0443\u0433\u0438\u0435: \u043e\u0431\u0449\u0430\u044f \u0440\u0430\u0431\u043e\u0447\u0430\u044f \u0442\u0435\u043c\u043f\u0435\u0440\u0430\u0442\u0443\u0440\u0430 ~100 \u00b0C \u0438 \u0443\u0442\u0432\u0435\u0440\u0436\u0434\u0435\u043d\u0438\u0435, \u0447\u0442\u043e POM-C \u201c\u0431\u043e\u043b\u0435\u0435 \u0440\u0430\u0437\u043c\u0435\u0440\u043d\u043e \u0441\u0442\u0430\u0431\u0438\u043b\u0435\u043d\u201d. \u041e\u0431\u0430 \u043c\u0435\u043d\u044f\u044e\u0442\u0441\u044f \u043d\u0430 \u043f\u0440\u043e\u0442\u0438\u0432\u043e\u043f\u043e\u043b\u043e\u0436\u043d\u044b\u0435 \u0432 \u0440\u0435\u0430\u043b\u044c\u043d\u044b\u0445 \u0443\u0441\u043b\u043e\u0432\u0438\u044f\u0445 \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438.<\/p>\n\n\n\n

Equal Max Service Temperature, Unequal Under Load<\/h3>\n\n\n\n

Both materials cite a maximum service temperature near 100 \u00b0C, so they read as thermally equal. Load them and they separate.<\/p>\n\n\n\n

Heat deflection temperature at 1.8 MPa is about 110 \u00b0C for POM-C versus roughly 55 \u00b0C for PP (ASTM D648) \u2014 nearly double. Equal max-service-temp does not mean equal load capability at temperature, so any part carrying stress in a warm environment lands on POM-C.<\/p>\n\n\n\n

\"\u0421\u0440\u0430\u0432\u043d\u0435\u043d\u0438\u0435<\/figure>\n\n\n\n

Moisture Stability Runs the Other Way<\/h3>\n\n\n\n

The dimensional-stability claim quietly inverts a real number. POM-C does hold tighter tolerance under sustained load and thermal cycling \u2014 but not because it absorbs less water.<\/p>\n\n\n\n

PP absorbs less than 0.03% moisture (ASTM D570); POM-C takes up 0.22% at 24 hours and roughly 0.8% at saturation. On raw moisture uptake, PP wins.<\/p>\n\n\n\n

\u0420\u0430\u0437\u043c\u0435\u0440\u043d\u043e\u0435 \u043f\u0440\u0435\u0438\u043c\u0443\u0449\u0435\u0441\u0442\u0432\u043e POM-C \u2014 \u044d\u0442\u043e \u043f\u043e\u043b\u0437\u0443\u0447\u0435\u0441\u0442\u044c \u0438 \u0441\u043e\u0445\u0440\u0430\u043d\u0435\u043d\u0438\u0435 \u0436\u0451\u0441\u0442\u043a\u043e\u0441\u0442\u0438 \u043f\u043e\u0434 \u043d\u0430\u0433\u0440\u0443\u0437\u043a\u043e\u0439, \u0430 \u043d\u0435 \u0432\u043b\u0430\u0433\u043e\u0441\u0442\u043e\u0439\u043a\u043e\u0441\u0442\u044c. \u0421\u0444\u043e\u0440\u043c\u0443\u043b\u0438\u0440\u0443\u0439\u0442\u0435 \u044d\u0442\u043e \u043d\u0430\u043e\u0431\u043e\u0440\u043e\u0442 \u2014 \u0438 \u0432\u044b \u0432\u044b\u0431\u0440\u0430\u043b\u0438 \u043d\u0435\u043f\u0440\u0430\u0432\u0438\u043b\u044c\u043d\u044b\u0439 \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b \u0434\u043b\u044f \u0432\u043b\u0430\u0436\u043d\u043e\u0439 \u0434\u0435\u0442\u0430\u043b\u0438 \u0441 \u043d\u0438\u0437\u043a\u043e\u0439 \u043d\u0430\u0433\u0440\u0443\u0437\u043a\u043e\u0439.<\/p>\n\n\n\n

When to Choose Acetal Copolymer and When to Choose Polypropylene<\/h2>\n\n\n\n

\u0421\u043e\u043f\u043e\u0441\u0442\u0430\u0432\u044c\u0442\u0435 \u0435\u0434\u0438\u043d\u0441\u0442\u0432\u0435\u043d\u043d\u043e\u0435 \u0434\u043e\u043c\u0438\u043d\u0438\u0440\u0443\u044e\u0449\u0435\u0435 \u0442\u0440\u0435\u0431\u043e\u0432\u0430\u043d\u0438\u0435 \u0432\u0430\u0448\u0435\u0439 \u0434\u0435\u0442\u0430\u043b\u0438 \u0441 \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u043e\u043c; \u043d\u0435 \u0443\u0441\u0440\u0435\u0434\u043d\u044f\u0439\u0442\u0435 \u0441\u0432\u043e\u0439\u0441\u0442\u0432\u0430. \u041a\u0430\u0436\u0434\u0430\u044f \u0441\u0442\u0440\u043e\u043a\u0430 \u0441\u043e\u043f\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 \u0433\u043b\u0430\u0432\u043d\u043e\u0435 \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u0438\u0435 \u0441 \u043f\u0440\u0430\u0432\u0438\u043b\u044c\u043d\u044b\u043c \u0432\u044b\u0431\u043e\u0440\u043e\u043c \u0438 \u0447\u0438\u0441\u043b\u043e\u0432\u044b\u043c \u0440\u0430\u0437\u0440\u044b\u0432\u043e\u043c, \u0441\u0442\u043e\u044f\u0449\u0438\u043c \u0437\u0430 \u043d\u0438\u043c.<\/p>\n\n\n\n

Governing constraint<\/th>POM-C<\/th>PP<\/th>Goes to<\/th><\/tr><\/thead>
Stiffness under load (flexural modulus, D790)<\/td>~2.6 GPa<\/td>~1.3 GPa<\/td>POM-C<\/td><\/tr>
Surface wear \/ low friction (COF)<\/td>~0.21, self-lubricating<\/td>higher, none<\/td>POM-C<\/td><\/tr>
Creep under sustained load<\/td>among the best<\/td>creeps, relaxes<\/td>POM-C<\/td><\/tr>
Load capability at temperature (HDT @1.8 MPa, D648)<\/td>~110 \u00b0C<\/td>~55 \u00b0C<\/td>POM-C<\/td><\/tr>
Strong acid \/ base resistance<\/td>poor<\/td>resistant<\/td>PP<\/td><\/tr>
Weight \/ density (D792)<\/td>41 g\/cm\u00b3<\/td>905 g\/cm\u00b3<\/td>PP<\/td><\/tr>
Living hinge \/ repeated flex<\/td>excluded<\/td>owns it<\/td>PP<\/td><\/tr>
Material cost per part<\/td>engineering-priced<\/td>commodity<\/td>PP<\/td><\/tr>
Moisture uptake (D570)<\/td>0.22\u20130.8%<\/td><0.03%<\/td>PP<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

The split is clean: precision mechanical hardware on the left, fluid contact and weight, cost, and flex on the right. A part rarely needs both, which is why the dominant-requirement rule resolves nearly every borderline case.<\/p>\n\n\n\n

When the constraint lands on PP and the part is a PP-R pipe fitting, PetroChina Dushanzi T4401 random copolymer is the typical reference grade. The equivalents from Sinopec sit in a similar MFI band.
\u041a\u043e\u0433\u0434\u0430 \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u0438\u0435 \u043a\u0430\u0441\u0430\u0435\u0442\u0441\u044f \u041f\u041f \u0438 \u0434\u0435\u0442\u0430\u043b\u044c \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0444\u0438\u0442\u0438\u043d\u0433\u043e\u043c \u0434\u043b\u044f \u0442\u0440\u0443\u0431 \u041f\u041f-R, \u0442\u0438\u043f\u0438\u0447\u043d\u044b\u043c \u044d\u0442\u0430\u043b\u043e\u043d\u043d\u044b\u043c \u0441\u043e\u0440\u0442\u043e\u043c \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0441\u0442\u0430\u0442\u0438\u0441\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0441\u043e\u043f\u043e\u043b\u0438\u043c\u0435\u0440 PetroChina Dushanzi T4401. \u0410\u043d\u0430\u043b\u043e\u0433\u0438 \u043e\u0442 Sinopec \u043d\u0430\u0445\u043e\u0434\u044f\u0442\u0441\u044f \u0432 \u0441\u0445\u043e\u0436\u0435\u043c \u0434\u0438\u0430\u043f\u0430\u0437\u043e\u043d\u0435 \u041f\u0422\u0420.<\/p>\n\n\n\n

Picking the right PP family is its own decision \u2014
\u0412\u044b\u0431\u043e\u0440 \u043f\u0440\u0430\u0432\u0438\u043b\u044c\u043d\u043e\u0433\u043e \u0441\u0435\u043c\u0435\u0439\u0441\u0442\u0432\u0430 \u041f\u041f \u2014 \u044d\u0442\u043e \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u043e\u0435 \u0440\u0435\u0448\u0435\u043d\u0438\u0435 \u2014 the three main PP grades
\u0442\u0440\u0438 \u043e\u0441\u043d\u043e\u0432\u043d\u044b\u0445 \u0441\u043e\u0440\u0442\u0430 \u041f\u041f<\/a> \u0440\u0430\u0437\u0434\u0435\u043b\u0435\u043d\u044b \u043f\u043e \u0436\u0435\u0441\u0442\u043a\u043e\u0441\u0442\u0438, \u043f\u0440\u043e\u0437\u0440\u0430\u0447\u043d\u043e\u0441\u0442\u0438 \u0438 \u0443\u0434\u0430\u0440\u043d\u043e\u0439 \u0432\u044f\u0437\u043a\u043e\u0441\u0442\u0438 \u043f\u0440\u0438 \u043d\u0438\u0437\u043a\u0438\u0445 \u0442\u0435\u043c\u043f\u0435\u0440\u0430\u0442\u0443\u0440\u0430\u0445.<\/p>\n\n\n\n

The Bottom Line
\u0413\u043b\u0430\u0432\u043d\u044b\u0439 \u0432\u044b\u0432\u043e\u0434<\/h2>\n\n\n\n

\u041f\u0440\u0438\u043d\u0438\u043c\u0430\u0439\u0442\u0435 \u0440\u0435\u0448\u0435\u043d\u0438\u0435 \u043f\u043e \u0435\u0434\u0438\u043d\u0441\u0442\u0432\u0435\u043d\u043d\u043e\u043c\u0443 \u0442\u0440\u0435\u0431\u043e\u0432\u0430\u043d\u0438\u044e, \u043a\u043e\u0442\u043e\u0440\u043e\u0435 \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u044f\u0435\u0442 \u0434\u0435\u0442\u0430\u043b\u044c, \u0430 \u043d\u0435 \u043f\u043e \u0442\u043e\u043c\u0443, \u0443 \u043a\u0430\u043a\u043e\u0433\u043e \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u0430 \u043b\u0443\u0447\u0448\u0438\u0435 \u043e\u0431\u0449\u0438\u0435 \u0445\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u0438\u0441\u0442\u0438\u043a\u0438. \u0415\u0441\u043b\u0438 \u0434\u0435\u0442\u0430\u043b\u044c \u0440\u0430\u0431\u043e\u0442\u0430\u0435\u0442 \u0438\u043b\u0438 \u0432\u044b\u0445\u043e\u0434\u0438\u0442 \u0438\u0437 \u0441\u0442\u0440\u043e\u044f \u0438\u0437-\u0437\u0430 \u0436\u0435\u0441\u0442\u043a\u043e\u0441\u0442\u0438, \u0441\u043a\u043e\u043b\u044c\u0437\u044f\u0449\u0435\u0433\u043e \u0438\u0437\u043d\u043e\u0441\u0430, \u043f\u043e\u043b\u0437\u0443\u0447\u0435\u0441\u0442\u0438 \u0438\u043b\u0438 \u043d\u0430\u0433\u0440\u0443\u0437\u043a\u0438 \u043f\u0440\u0438 \u0442\u0435\u043c\u043f\u0435\u0440\u0430\u0442\u0443\u0440\u0435, POM-C \u043e\u043f\u0440\u0430\u0432\u0434\u044b\u0432\u0430\u0435\u0442 \u0441\u0432\u043e\u044e \u043f\u0440\u0435\u043c\u0438\u0430\u043b\u044c\u043d\u0443\u044e \u0446\u0435\u043d\u0443.<\/p>\n\n\n\n

\u0414\u043b\u044f \u0448\u0435\u0441\u0442\u0435\u0440\u0451\u043d \u0438 \u0432\u0442\u0443\u043b\u043e\u043a \u0441\u043d\u0430\u0447\u0430\u043b\u0430 \u043e\u0446\u0435\u043d\u0438\u0442\u0435 \u0441\u0442\u0435\u043a\u043b\u043e\u043d\u0430\u043f\u043e\u043b\u043d\u0435\u043d\u043d\u044b\u0439 PA66<\/a> \u043f\u0440\u0438 \u0442\u043e\u0439 \u0436\u0435 \u043d\u0430\u0433\u0440\u0443\u0437\u043a\u0435. \u041c\u0430\u0440\u043a\u0430 GF25 \u0447\u0430\u0441\u0442\u043e \u0434\u043e\u0441\u0442\u0438\u0433\u0430\u0435\u0442 \u044d\u0442\u0438\u0445 \u043f\u043e\u043a\u0430\u0437\u0430\u0442\u0435\u043b\u0435\u0439 \u0437\u0430 \u043c\u0435\u043d\u044c\u0448\u0438\u0435 \u0434\u0435\u043d\u044c\u0433\u0438.<\/p>\n\n\n\n

\u0415\u0441\u043b\u0438 \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u044f\u044e\u0449\u0438\u043c \u0444\u0430\u043a\u0442\u043e\u0440\u043e\u043c \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0445\u0438\u043c\u0438\u0447\u0435\u0441\u043a\u0430\u044f \u0441\u0442\u043e\u0439\u043a\u043e\u0441\u0442\u044c, \u0432\u0435\u0441, \u0441\u0442\u043e\u0438\u043c\u043e\u0441\u0442\u044c \u0438\u043b\u0438 \u0433\u0438\u0431\u043a\u0438\u0439 \u0448\u0430\u0440\u043d\u0438\u0440, PP \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u044c\u043d\u043e \u043f\u0440\u0430\u0432\u0438\u043b\u044c\u043d\u044b\u043c \u043e\u0442\u0432\u0435\u0442\u043e\u043c \u2014 \u0438 \u043f\u043e \u0445\u0438\u043c\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u043e\u0441\u0438 \u044d\u0442\u043e \u0431\u043e\u043b\u0435\u0435 \u043f\u0440\u043e\u0447\u043d\u044b\u0439 \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b, \u0430 \u043d\u0435 \u0434\u0435\u0448\u0435\u0432\u044b\u0439 \u043a\u043e\u043c\u043f\u0440\u043e\u043c\u0438\u0441\u0441.<\/p>\n\n\n\n

\u041a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u044b \u0434\u043b\u044f \u0440\u0430\u0431\u043e\u0442\u044b \u0441 \u0436\u0438\u0434\u043a\u043e\u0441\u0442\u044f\u043c\u0438, \u0437\u0430\u0449\u0451\u043b\u043a\u0438\u0432\u0430\u044e\u0449\u0438\u0435\u0441\u044f \u0438 \u0433\u0438\u0431\u043a\u0438\u0435 \u0437\u0430\u0442\u0432\u043e\u0440\u044b, \u0430 \u0442\u0430\u043a\u0436\u0435 \u043a\u0440\u0443\u043f\u043d\u043e\u0441\u0435\u0440\u0438\u0439\u043d\u044b\u0435 \u043b\u0438\u0442\u044b\u0435 \u0434\u0435\u0442\u0430\u043b\u0438 \u043e\u0442\u043d\u043e\u0441\u044f\u0442\u0441\u044f \u043a \u041f\u041f \u2014 \u0431\u043e\u043b\u044c\u0448\u0435\u0439 \u0447\u0430\u0441\u0442\u0438 \u0440\u0435\u0430\u043b\u044c\u043d\u044b\u0445 \u0438\u0437\u0434\u0435\u043b\u0438\u0439. \u0421\u043b\u0435\u0434\u0443\u044e\u0449\u0438\u0439 \u0432\u043e\u043f\u0440\u043e\u0441 \u2014 \u043a\u0430\u043a\u043e\u0435 \u0441\u0435\u043c\u0435\u0439\u0441\u0442\u0432\u043e \u041f\u041f \u043f\u043e\u0434\u0445\u043e\u0434\u0438\u0442: \u0436\u0451\u0441\u0442\u043a\u043e\u0441\u0442\u044c \u0433\u043e\u043c\u043e\u043f\u043e\u043b\u0438\u043c\u0435\u0440\u0430, \u043f\u0440\u043e\u0437\u0440\u0430\u0447\u043d\u043e\u0441\u0442\u044c \u0441\u0442\u0430\u0442\u0438\u0441\u0442\u0438\u0447\u0435\u0441\u043a\u043e\u0433\u043e \u0441\u043e\u043f\u043e\u043b\u0438\u043c\u0435\u0440\u0430 \u0438\u043b\u0438 \u0445\u043e\u043b\u043e\u0434\u043e\u0441\u0442\u043e\u0439\u043a\u043e\u0441\u0442\u044c \u0443\u0434\u0430\u0440\u043e\u043f\u0440\u043e\u0447\u043d\u043e\u0439 \u043c\u0430\u0440\u043a\u0438.<\/p>","protected":false},"excerpt":{"rendered":"

Acetal copolymer (POM-C) and polypropylene (PP) both list a maximum service temperature near 100 \u00b0C. Yet under a 1.8 MPa load, POM-C holds its shape to about 110 \u00b0C while PP softens at roughly 55 \u00b0C \u2014 half the number. That gap is the whole comparison in miniature: the two materials look interchangeable on a […]<\/p>\n","protected":false},"author":4,"featured_media":1570,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1028","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"blocksy_meta":[],"acf":[],"yoast_head":"\nAcetal Copolymer vs Polypropylene: Which One Fits Your Part? - BASTONE<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/bastone-petrochem.com\/ru\/acetal-copolymer-vs-polypropylene\/\" \/>\n<meta property=\"og:locale\" content=\"ru_RU\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Acetal Copolymer vs Polypropylene: Which One Fits Your Part? - BASTONE\" \/>\n<meta property=\"og:description\" content=\"Acetal copolymer (POM-C) and polypropylene (PP) both list a maximum service temperature near 100 \u00b0C. Yet under a 1.8 MPa load, POM-C holds its shape to about 110 \u00b0C while PP softens at roughly 55 \u00b0C \u2014 half the number. 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- BASTONE","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/bastone-petrochem.com\/ru\/acetal-copolymer-vs-polypropylene\/","og_locale":"ru_RU","og_type":"article","og_title":"Acetal Copolymer vs Polypropylene: Which One Fits Your Part? - BASTONE","og_description":"Acetal copolymer (POM-C) and polypropylene (PP) both list a maximum service temperature near 100 \u00b0C. Yet under a 1.8 MPa load, POM-C holds its shape to about 110 \u00b0C while PP softens at roughly 55 \u00b0C \u2014 half the number. 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