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How to improve fat dissolution through pp recycled plastic granulation

Plasticizer RQT-P- 1 can be added to increase the fat solubility by more than twice.

Improving the fat solubility (melt flow rate) of PP plastics can be achieved by the following methods: Adding plasticizers and plasticizers can reduce the melt viscosity of PP plastics, thereby increasing its melt flow rate. However, it should be noted that the amount of plasticizer added should be moderate, and excessive addition may affect the mechanical properties and heat resistance of PP plastics.

The high fat solubility (melting index) during the granulation process of PP physical foaming materials is mainly caused by degradation of raw materials, improper processing technology or equipment problems. Raw material factor PP base has a low molecular weight or a wide distribution: Raw materials with a higher initial melt index (MFI) are more likely to be further degraded during processing due to shear and thermal history.

Melt plasticization Place the plastic particles into a twin-screw extruder and heat them to the melting point of the material (for example, PE is about 120-180℃). The temperature control error requires 3℃, and the melt flow index (MFI) directly affects the ductility of recycled plastics. Filtration uses an 80-200 mesh filter to remove carbides and metal debris in the melt. High-precision products use a multi-stage filtration system, and the filter needs to be replaced immediately when the clogging rate reaches 30%.

What is the fav process for plastic production

1."FAV procedure" is not a common term in the field of plastic production. It may be an exclusive name in a company or process. However, common plastic production processes can be summarized into the following categories: ABS plastic production process ① Picking classification: According to the source of electrical shells, daily necessities, etc., plating/painting parts are treated separately.② Chemical stripping and paint stripping: Pay attention to the ratio of liquid medicine and protective measures.③ Cleaning and drying: Remove residues through a cleaning tank and fully dry them.

2. The plastic assembly manual production process includes seven core links: design, prototype, mold opening, injection molding, coating, assembly and quality inspection. Each step directly affects the precision and market competitiveness of the finished product. 3D modeling and design drawings in the design phase: Designers use software such as 3ds Max and Maya to build hand-made three-dimensional models to refine the shape, dynamics and decorative elements. The completed design drawing must be marked with size accuracy and color separation scheme to provide a blueprint for subsequent production.

3. To make plastic processed products, the overall production process of plastic products is: raw material selection-raw material coloring and ratio-design of molds-machine decomposition and injection molding-printing-assembly and testing of finished products-packaging and delivery.

How to produce recycled polypropylene materials? How should manufacturers choose?

PP is the abbreviation for polypropylene plastic, and PP recycled material is also polypropylene recycled material. Regeneration also refers to recycling, which is the general term after the second thermoplastic treatment compared to new raw materials. After general plastic is used once, it can be used as raw materials again after being heated, extruded and granulated by a recycling machine. The recycled and extruded polypropylene materials are called PP recycled materials.

The main raw material of PP recycled materials is polypropylene (PP), which is a commonly used thermoplastic. It is widely used in fields such as packaging, auto parts, wire and cable, and medical devices. Due to its superior physical and processing properties, polypropylene has become one of the important raw materials for the manufacture of various plastic products. However, a large amount of waste is generated during the production and use of PP products.

Production process: During the production process of woven bags, recycled particles are heated and melted, and then woven into woven bags by weaving machines. The strength and durability of woven bags mainly depend on the quality of recycled particles and the weaving process. Modification: In order to meet the needs of different application scenarios, recycled polypropylene particles can also be modified, such as adding plasticizers, reinforcing agents, etc. to improve their physical properties and processing properties.

How to regenerate polycarbonate PC?

The process flow of recycled PC polycarbonate raw materials mainly includes steps such as raw material selection and classification, cleaning and stripping treatment, drying and color matching, extrusion granulation, and performance optimization and modification. The details are as follows: raw material selection and classification The raw materials for recycled PC are widely sourced, including used buckets, plates, electronic products, textile parts, car headlights, taillights, turn signals, confectionery molds, discs, telecommunications equipment, photographic equipment, etc.

. First of all, select the purchased PCs. There are transparent and opaque ones, blue, red, green and black must be separated; there are also modified ones, such as most textile accessories that are modified; for example, discs and lamp holders are all coated. 2. The stripping processes such as cleaning various PCs and disc holders also operate on the same principle as ABS. Then dry, classify, and send to an extruder for production.

PC (polycarbonate) is a polymer material with good plasticity, excellent mechanical properties and thermal stability. From an environmental and sustainable development perspective, recycling and reusing materials is very important. For PC materials, whether they can be reused depends on their cleanliness and degradation of physical properties. If the PC material is in good condition and has not suffered serious damage or contamination, it can be recycled and reused.

Polycarbonate (PC) materials are controversial in terms of environmental protection: they are safe for short-term use but difficult to degrade naturally, and proper recycling can reduce environmental impact.

Automotive industry: Used for car lights and windshields (such as polycarbonate windshields on some models) to improve impact resistance and design freedom. Electronics and optics: PCs are widely used in mobile phone screens, lenses, LED lampshades and other parts that require high light transmittance and heat resistance. Medical equipment: Non-toxic and high-temperature resistant properties make it suitable for medical supplies such as surgical instruments and dialyzers.

Product characteristics: Polycarbonate produced from recycled naphtha has excellent impact resistance, heat resistance and transparency.

How to classify recycled plastics

The following is the classification and characteristics of recycled plastics: PVC (polyvinyl chloride): recycled PVC will have obvious color changes. The product may appear light brown when it is first recycled. As the number of reconstructions increases, the color will become more opaque. Its viscosity may remain unchanged during the second regeneration, while there will be a downward trend after more than two regenerations. In order to stabilize recycled materials, stabilizers need to be added.

The recycled plastics industry mainly divides waste plastics into several categories: genuine brand materials, water outlet materials, recycled materials, secondary brand materials, and recycled materials. The identification methods include sensory identification and combustion identification. The specific classification and identification methods are described as follows: Classification authentic materials: The authentic raw materials produced by the factory that meet the standards are the main products in formal circulation in the market. Water nozzle material: refers to the broken material after the remaining part of the injected plastic part is broken. There are primary water nozzle, secondary water nozzle, etc.

At present, there are five main common types of waste plastic recycling, as follows: Polyethylene (PE) is subdivided into high-density polyethylene (HDPE), low-density polyethylene (LDPE) and linear low-density polyethylene (LLDPE). Common products include plastic cans, plastic wrap, plastic bags, pipes, etc. After recycling, it can be reprocessed into plastic bags, plastic films, recycled pipes and other products.

Transparent pc/pet alloy formula

Due to different performance requirements and significant differences in core components and process design, transparent PC/PET alloy formulations need to be adjusted accordingly.

Additional light scattering sites will be introduced, and the addition amount must be controlled within 0.5%. It is only suitable for modification of PC/PET alloys with medium and low transparency requirements. Excessive use will greatly increase the haze of the product. Organic nucleating agents (1) Commonly used varieties of sorbitol nucleating agents are dibenzylidene sorbitol (DBS) and its methyl and ethyl derivatives (MDBS, EDBS), which are the mainstream choice for universal transparent PC/PET modification.

2) The representative variety of organic phosphate nucleating agent is ADEKA's ADK STAB NA-1NA-21. This kind of nucleating agent has a heat-resistant decomposition temperature of more than 300℃ and is suitable for PC/PET alloy processing temperatures of 240~280℃. It has better compatibility with double resins and will not cause transesterification degradation of PC. The addition amount of 0.1%~0.3% can achieve a light transmittance improvement of 12%~22%, which is suitable for transparent products under high temperature conditions.

Conventional parameters: In industrial applications, the addition amount is usually controlled at 0.1%~0.5%(mass fraction). It is suitable for most general PC/PET alloy formulations and will not significantly reduce the core mechanical properties of the alloy such as heat resistance and impact strength.

Nucleating agents commonly used for transparent modification of PC/PET alloys are mainly divided into three categories: inorganic nanoparticles, organic small molecules and polymer grafting. Different types are suitable for different transparency improvement goals and processing conditions.

To improve the transparency of PC-PET alloys, three types of nucleating agents can be selected, each with different performance characteristics and adaptation scenarios. Talc powder Talc powder is a more commonly used heterogeneous nucleating agent for PET. It can increase the crystallization rate of PET and reduce the mold temperature. However, it is an inorganic nucleating agent and its overall performance is relatively limited.

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