1、改性聚氯乙烯及其研究进展

This paper mainly introduces the commonly used mod-ification methods of PVC and their performance characteristics, especially in detail summarizes the application fields of modified PVC products, and finally puts forward the environmental prob-lems and recycling applications of PVC.

2、Research of Polyvinyl Chloride (PVC) and Its Modification

Therefore, the modification of PVC materials is the main research direction in the field of materials. This paper introduces two modification approaches in the modification of PVC, chemical modification and physical modification.

3、Surface modification of silica micro

Surface modification of silica micro-powder (SMP) was performed by using commercially available titanate coupling agent KTTO, and polyvinyl chloride (PVC) based composites were prepared by melting and blending PVC and processing aids with SMP before and after modification as fillers.

Poly(vinyl chloride) (PVC): an updated review of its properties

Numerous ongoing studies have expanded this chemistry, primarily through the chemical changes of this polymeric substance. The chemical modification of PVC employing various materials as an active modifying agent is described in this work.

Numerical simulation of PVC resin electrostatic powder coating process

Through numerical simulation of the electrostatic powder spraying process of PVC resin, it is determined that the powder has a relatively better deposition uniformity on the fiber surface when the static voltage is −90 kV and the spraying distance is 40 mm.

Polyvinyl chloride, PVC resin, Production process, Processing modification

Introduces the production process, processing and modification methods of PVC resin and its application in the fields of construction, packaging, etc.

Synthesis, Modification, and Applications of Poly(vinyl chloride) (PVC)

This study describes the chemical modification of PVC using different materials as an active modifying agent. The latter included substitutions, PVC modifications, nucleophilic radicals, removal or dehydrochlorination, and grafting polymerizations.

PVC Compound Production Process

Understanding PVC Compounding: PVC resin, in its powder form, undergoes modification and blending with additives like stabilizers, lubricants, pigments, and more to form PVC compounds tailored for specific applications.

Polyvinyl chloride modifications, properties, and applications: Review

Various ion-exchange sorbents and membranes based on PVC, methods for modifying PVC and the use of the obtained ion-exchange sorbents and membranes are viewed. A comparison of the sorption properties of ion-exchange sorbents based on PVC and sorbents used in industry has also been carried out.

Formulation optimization and performance enhancement of polyvinyl

In this work, PVC composites were prepared with silica micropowder (SMP) as a filler. Titanate coupling agent (TCA-KTTO) modification and chlorinated polyethylene (CPE) toughening treatment were utilized to enhance the composites performance.

In today's plastic industry, PVC (polyvinyl chloride) resin is widely used due to its low cost and stable performance. its inherent limitations, such as poor heat resistance and weak impact resistance, restrict its application under more demanding conditions. modifying PVC resin to enhance its comprehensive properties has become a hot topic in the field of material science. This article explores the research progress and future prospects of PVC resin powder modification.

Necessity of PVC Resin Powder Modification

PVC resin powder typically refers to unprocessed, raw PVC particles. While this form of PVC exhibits good mechanical properties, it tends to degrade under high temperatures or impact loads, leading to reduced performance. Additionally, PVC resin powder has poor thermal stability and releases hydrogen chloride gas during heating, which not only affects the appearance of the products but may also pose health risks. modifying PVC resin powder to improve its heat resistance and chemical corrosion resistance is critical for achieving high-performance PVC products.

Overview of Modification Techniques

Currently, methods for modifying PVC resin powder mainly include physical, chemical, and nanotechnology-based approaches.

1. Physical Methods: These involve altering the morphology or structure of PVC resin powder through filling, reinforcement, or surface treatment. While simple to implement, physical methods often yield limited performance improvements and may be cost-intensive.

2. Chemical Methods: Chemical reactions are used to modify the surface or internal structure of PVC resin powder. For example, adding crosslinking agents, initiators, or plasticizers can significantly enhance heat resistance, chemical resistance, and mechanical strength.

3. Nanotechnology Methods: Incorporating nanoparticles into PVC resin powder effectively improves mechanical properties, thermal stability, and weatherability. Nanoparticles form composites with good interfacial compatibility and leverage quantum size effects and surface effects to enhance functional properties.

Analysis of Modification Effects

Modifying PVC resin powder results in diverse performance improvements. For instance:

• Adding nano-silica significantly boosts thermal stability and mechanical strength.
• Incorporating carbon black enhances wear resistance and UV resistance. Additionally, modified PVC can be blended or grafted with other polymers to create composites with superior performance.

Application Prospects and Challenges

With technological advancements and growing market demands, the applications of modified PVC resin powder span from construction materials and automotive interiors to packaging and medical devices. challenges remain, including balancing cost and performance, improving modification efficiency, and addressing environmental concerns.

Modification of PVC resin powder is a challenging yet promising research direction. By combining physical, chemical, and nanotechnology-based methods, the performance of PVC resin powder can be effectively enhanced. In the future, continued advancements in material science are expected to drive further breakthroughs in PVC resin modification, invigorating the plastic industry.