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Dull Surface of Polypropylene Extruded Products

A dull surface is caused by low die temperature or excessive cooling; the die temperature needs to be increased and the cooling slowed down.

Material Analysis dullnessdie temperaturecooling ratedie polishingmelt temperature

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Performance Degradation Caused by Excessively High Regrind Ratio of Polypropylene

The performance decline of regrind is the result of accumulated thermal history; the regrind ratio and the number of uses need to be strictly controlled.

Material Analysis regrindmolecular weight decreaseantioxidantregrind ratiothermal history

9 görüntüleme

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Low-Temperature Brittleness Problem of Polypropylene PP Products

The low-temperature brittleness of PP can be improved by selecting copolymer grades and adding toughening agents.

Material Analysis low-temperature brittlenesshomopolymer PPglass transitiontougheningPP COPO

9 görüntüleme

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Welding Joint Leakage of Polypropylene PPR Pipe

PPR welding joint leakage is caused by improper welding parameters or contamination of the welding surface; the welding temperature, time, and cleanliness need to be strictly controlled.

Material Analysis PPR weldinghot-melt weldingwelding temperaturewelding timefitting matching

9 görüntüleme

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Mechanical properties of polyolefin plastomer extruded products not up to standard

Mechanical properties not up to standard are caused by material degradation or poor processing quality, and need to be solved from temperature control and plasticization quality.

Material Analysis mechanical propertiesmaterial degradationplasticization qualitycrystallinityregrind proportion

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Insufficient strength of polyolefin plastomer films

Insufficient film strength is caused by improper material selection or process parameters, and needs to be optimized from raw materials, temperature, and blow-up ratio.

Material Analysis film strengthMFRblow-up ratiodraw ratiomaterial degradation

8 görüntüleme

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Insufficient heat seal strength of polyolefin plastomer films

Insufficient heat seal strength is caused by improper temperature, pressure, or time settings, and the heat seal process parameters need to be optimized.

Material Analysis heat seal strengthheat seal temperatureheat seal pressurefilm thicknessheat seal material

4 görüntüleme

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No gloss on the surface of polyolefin plastomer extruded products

The glossless surface is caused by low die temperature or excessive cooling, and it is necessary to raise the die temperature and slow down cooling.

Material Analysis no glossdie temperaturecooling ratedie polishingmelt temperature

4 görüntüleme

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Leakage of welded joints of polyolefin plastomer PPR pipes

PPR welded joint leakage is caused by improper welding parameters or contamination of the welding surface, and the welding temperature, time, and cleanliness need to be strictly controlled.

Material Analysis PPR weldinghot-melt weldingwelding temperaturewelding timefitting matching

3 görüntüleme

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Mechanical properties of heat-resistant polyethylene extruded products not meeting standard

Failure of mechanical properties to meet standards is caused by material degradation or poor processing quality, and needs to be solved from temperature control and plasticizing quality.

Material Analysis mechanical propertiesmaterial degradationplasticizing qualitycrystallinityregrind ratio

2 görüntüleme

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Tüm Konular 11636 Material Drying 1439 Injection Molding 1506 Molding Process 740 Molds & Tooling 1506 Processing Machinery 2025 Extrusion & Post 2239 Blow Molding 315 Thermoforming 141 Material Analysis 1343 Production & Quality 382

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