日本有沢制作所研制成功含玻璃87％的高密度玻璃布层压板,这种板材比含玻璃70％的层压板强度高,抗拉和抗弯强度高50％,抗弯弹性值提高27％;层间剪切强度8公斤,提高了60％;抗压强度提高47％。过去,玻璃布层压板的玻璃含量最高仅70％,该公司通过精心选择玻璃布的丝和适当的织布方法,制成了玻璃含量高达87％的高密度层压板。该层压板制造过程中未加氧化铝和云母粉等,仅仅是树脂和上述质量的玻璃布。 Japan has a successful production of high-density glass cloth laminates containing 87% of the glass produced by Toray Manufacturing Co., Ltd. This laminate is 70% higher in laminate tensile strength and tensile strength, 50% higher in flexural strength and 27% in flexural flexibility than glass containing glass. Interlaminar shear strength of 8 kg, an increase of 60%; compressive strength increased by 47%. In the past, glass cloth laminates had a glass content of up to only 70%. The company made high-density laminates with up to 87% glass content by careful selection of glass cloth filaments and proper weaving methods. The laminate manufacturing process without alumina and mica powder, etc., only the resin and the above quality glass cloth.