1、A comprehensive review on modified phenolic resin composites for

Current research on PR modification emphasizes both physical methods, including filler enhancement and fiber reinforcement, and chemical methods, such as copolymerization, grafting, and cross-linking.

2、Additive Manufacturing Standards and Benchmarks

Additive Manufacturing Standards and Benchmarks ... The National Institute of Standards and Technology's (NIST) Additive Manufacturing (AM) team develops standards and benchmarks for AM.

3、Additive Manufacturing Standards

The standards define terminology, measure the performance of different production processes, ensure the quality of the end products, and specify procedures for the calibration of additive manufacturing machines.

4、Introduction of a New Classification for Resin Composites with Enhanced

With the introduction of new resin-based composites (RBC) based on their adjusted shade properties, there is a need for an additional classification for such materials. This review discusses and suggests a new classification for the RBCs.

5、Standards for Rosin

In recent years, more and more researchers have focused on the discussion of the properties of modified phenolic resins and gradually ignored the research on the synthesis processes that can affect the molecular structure and properties of phenolic resins.

Standard Specification for Modified Resin Products

First, the standard specification should clearly define the definition, classification, and scope of application of modified resins. This includes elaborating on the basic concepts of modified resins, detailing their chemical composition, physical characteristics, processing methods, and more to facilitate understanding and communication within ...

Introduction of a New Classification for Resin Composites

With the introduction of new resin-based composites (RBC) based on their adjusted shade properties, there is a need for an additional classification for such materials. This review discusses and suggests a new classification for the RBCs.

Standard Specifications for Evaluation of Modified Waterproof Resins

Based on application fields, modified waterproof resins can be classified into categories such as building-purpose waterproof resins, road-purpose waterproof resins, and industrial-purpose waterproof resins.

GENERAL STANDARD FOR FOOD ADDITIVES CODEX STAN 192

The General Standard for Food Additives (GSFA) should be the single authoritative reference point for food additives. Codex commodity committees have the responsibility and expertise to appraise and justify the technological need for the use of additives in foods subject to a commodity standard.

Annex 001a to IMDS Recommendation 001

Materials should preferably be classified according to their composition/properties and not according to their application. However, polymeric materials that fit into a 6.x classification, should preferably be assigned to that classification instead of a 5.x classification.

In the modern industrial and technological field, the application of resin materials is becoming increasingly widespread. To improve the performance of resins and meet different usage needs, various modified resin additives have been developed. These additives impart better performance to resins by changing their chemical structure and physical properties, such as higher strength, better heat resistance, superior electrical insulation, etc. This article will introduce several common types of modified resin additives and their classification standards.

I. Classification by Function Type

1. Reinforcement Additives: These additives are mainly used to enhance the mechanical strength and rigidity of resins. Common reinforcement additives include glass fibers, carbon fibers, aramid fibers, etc. They fill the voids in the resin through filling or winding, thereby increasing the material's load-bearing capacity.

2. Toughening Additives: These additives target the insufficient toughness of resins and improve the material's impact resistance and elongation at break by introducing rubber or polymer phases. Common toughening additives include nitrile rubber, polyurethane, etc.

3. Heat-Resistant Additives: These additives are used to enhance the heat resistance of resin materials, allowing them to maintain performance at higher temperatures. Common heat-resistant additives include polyimide, polyethersulfone, etc.

4. Environmental Resistance Additives: These additives are mainly used to improve the chemical corrosion resistance and solvent resistance of resins. Common environmental resistance additives include epoxy resin, polyurethane, etc.

II. Classification by Addition Method

1. Surface Coating Additives: These additives form a protective film on the surface of the resin, enhancing its wear resistance, corrosion resistance, and anti-aging properties. Common surface coating additives include silane coupling agents, phosphate esters, etc.

2. Filling Additives: These additives increase the density, hardness, and rigidity of the resin by adding fillers. Common filling additives include quartz sand, talcum powder, etc.

3. Radiation Additives: These additives use radiation technology, such as electron beams, X-rays, etc., to change the molecular structure of the resin, thereby improving its performance. Common radiation additives include radiation crosslinking agents, radiation stabilizers, etc.

III. Classification by Source

1. Natural Source Additives: These additives come from natural sources such as plant extracts, animal collagen, etc. They have good biodegradability and environmental friendliness but may have certain cost and source limitations.

2. Synthetic Source Additives: These additives are prepared by chemical synthesis methods, such as phenolic resins, polyester resins, etc. They have excellent performance and broad application prospects but may have issues with toxicity and environmental impact.

IV. Classification by Application Field

1. Aerospace Field: These additives are mainly used to improve the reliability and safety of resins under harsh environments such as high temperature, high pressure, and high impact. Common modified resin additives for the aerospace field include high-temperature resistant resins, high-strength resins, etc.

2. Automotive Manufacturing Field: These additives mainly improve the wear resistance, corrosion resistance, and anti-aging properties of resins to meet the requirements of auto parts in different working conditions. Common modified resin additives for the automotive manufacturing field include wear-resistant coatings, anticorrosive coatings, etc.

3. Electronic and Electrical Field: These additives mainly improve the electrical insulation and thermal stability of resins to meet the operating requirements of electronic devices in different environments. Common modified resin additives for the electronic and electrical field include electronic packaging materials, heat dissipation materials, etc.

V. Classification by Production Process

1. Prepolymer Modified Additives: These additives react with prepolymers to generate new compounds, thus improving the performance of resins. Common prepolymer modified additives include epoxy resin curing agents, polyurethane chain extenders, etc.

2. Post-Treatment Modified Additives: These additives are mainly used to treat already formed resin products to improve their performance. Common post-treatment modified additives include heat treatment agents, surface treatment agents, etc.

there are numerous types of modified resin additives each with unique functions and characteristics. Understanding and applying these additives can effectively enhance the performance of resin materials and meet the application needs of different fields. In future developments, we look forward to more innovations and breakthroughs that will bring more possibilities to the application and development of resin materials.