Square particle benzoxazine molding plastic

A technology of benzoxazine and molding compound, applied in the field of molding compound, can solve problems such as environmental pollution and endanger human health, and achieve the effects of environmental protection, high flame retardancy and excellent mechanical properties

Inactive Publication Date: 2018-04-13
广西信和新合成材料有限公司
View PDF4 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Because phenolic molding compound will release small molecular substances during the curing process, which will pollute the environment and endanger human health. In order to overcome the shortcoming of phenolic molding compound, benzoxazine molding compound has been specially developed to replace the traditional high-performance phenolic molding compound

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Square particle benzoxazine molding plastic

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Benzoxazine resin 20%; chopped fiber 60%; titanium dioxide 2%; curing accelerator 1%; wollastonite 12.5%; thermoplastic polyurethane elastomer rubber 3%; stearic acid 1%; wax 0.5%.

Embodiment 2

[0014] Benzoxazine Resin 30%; Chopped Fiber 50%; Titanium Dioxide 3%; Curing Accelerator 2%; Wollastonite 8%; Thermoplastic Polyurethane Elastomer Rubber 4%; Stearic Acid 2%; Wax 1%.

Embodiment 3

[0016] Benzoxazine resin 40%; chopped fiber 30%; titanium dioxide 5%; curing accelerator 3%; wollastonite 12%; thermoplastic polyurethane elastomer rubber 5%; stearic acid 3%; wax 2%.

[0017] Such as figure 1 As shown, mix the components of the above examples 1, 2, and 3 evenly, knead them with a screw extruder, cut them into square particles with a pelletizer, and sieve out the fine powder after air cooling, and then remove iron to obtain finished product. The products made in Examples 1, 2, and 3 were prepared as sample strips according to GB / T1404-2008 powdered phenolic molding compound, and after the post-curing test, the test data were obtained in the following table:

[0018] Test items

[0019] During the curing process, because no small molecules are released, the mold shrinkage rate is small and the yield is high; the product is baked in an oven at 240°C for 2 hours, no abnormal deformation is seen, and the heat resistance is good.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
softening pointaaaaaaaaaa
lengthaaaaaaaaaa
Login to view more

Abstract

The invention relates to square particle benzoxazine molding plastic. The square particle benzoxazine molding plastic is prepared from the following components by weight percent: 20 to 40 percent of benxoxazine resin, 30 to 60 percent of chopped fibers, 1 to 5 percent of titanium dioxide, 1 to 3 percent of curing accelerant, 1 to 5 percent of thermoplastic polyurethane elastomer rubber, 1 to 3 percent of stearic acid, 0.5 to 2 percent of wax and the balance of wollastonite; and the components are prepared, mixed, extruded, diced, cooled, screened and magnetically selected so as to remove iron,thus obtaining a square finished product. By adopting the formula, the curing shrinkage is small, the mechanical properties are excellent, the flame retardant performance is high, the heat stabilityis high, less fine powder exists, the rate of finished products is increased, and the environment of a molding workshop is protected.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to molding compound. Background technique [0002] Because phenolic molding compound will release small molecular substances during the curing process, which will pollute the environment and endanger human health. In order to overcome the shortcoming of phenolic molding compound, benzoxazine molding compound is specially developed to replace the traditional high-performance phenolic molding compound. Contents of the invention [0003] In order to solve the above problems, the object of the present invention is to provide a square particle benzoxazine molding compound. [0004] Specifically, the technical solution provided by the present invention is: a square particle benzoxazine molding compound, which comprises the following components by weight: 20-40% benzoxazine resin, 30-60% chopped fiber, Titanium dioxide 1-5%, curing accelerator 1-3%, thermoplastic polyurethane elastomer...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/34C08L75/04C08L91/06C08K13/04C08K7/06C08K7/04C08K3/34C08K3/22C08K5/09
CPCC08L61/34C08K2003/2241C08K2201/004C08L2201/02C08L2201/08C08L2205/03C08L2207/04C08L75/04C08L91/06C08K13/04C08K7/06C08K7/04C08K3/346C08K3/22C08K5/09C08K3/34
Inventor 邱家会周仁雄邱维
Owner 广西信和新合成材料有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap